ONKYO CS255 - Hi-Fi System

CS255 - Hi-Fi System ONKYO - Free user manual and instructions

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Product Type Hi-Fi System with CD Tuner Amplifier, iPod/iPhone Dock and Speakers
Brand Onkyo
Model CS255 (CR-255 + D-T15 speakers)
Tuner Amplifier Dimensions (W × H × D) 215 × 100 × 273 mm
Tuner Amplifier Weight 2.5 kg
Speaker Dimensions (W × H × D) 130 × 210 × 172 mm
Speaker Weight (each) 1.6 kg
Power Supply 120 V AC, 60 Hz (depending on country)
Power Consumption 30 W (excluding iPod charging)
Standby Power Consumption 0.35 W (excluding iPod charging)
Rated Output Power 2 × 15 W at 6 Ω (1 kHz, 10% THD)
Speaker Impedance 6 Ω (supplied speakers); amplifier compatible with 6–16 Ω
Frequency Response (Amplifier) 50 Hz – 20 kHz (+0/–3 dB)
Frequency Response (Speakers) 55 Hz – 50 kHz
Speaker Type 2-way, bass-reflex, magnetic shielding
Drivers 10 cm cone woofer, 2 cm dome tweeter
CD Player Audio CD, CD-R/RW (MP3)
Supported Audio Formats (CD/USB) MP3 (32–320 kbps, 32/44.1/48 kHz)
Tuner FM/AM, 30 presets each, RDS not mentioned
Connectivity Lightning dock for iPod/iPhone, USB port (front), line input (RCA), 3.5 mm headphone jack, speaker terminals
Special Features Super Bass (2 levels), separate bass/treble adjustment, programmable timer, sleep timer, auto standby
Supplied Accessories Remote control (RC-823S), Indoor FM antenna, AM loop antenna, power cable, 8 speaker protection pads
Care and Cleaning Wipe with a soft, dry cloth; for stubborn stains, slightly damp cloth (water + mild detergent) then wipe dry. Do not use solvents.
Safety Class 1 laser, anti-condensation protection, user-non-replaceable fuse, automatic shutdown in case of overheating
General Information Manual available for download; factory reset possible; spare parts not listed, repair by qualified technician

Frequently Asked Questions - CS255 ONKYO

How to connect my speakers to the CD tuner amplifier?
Use the supplied speaker cables. Connect the right (R) and left (L) speakers to the corresponding terminals on the amplifier. Respect polarity: red wire to (+), black wire to (-). Reversed polarity degrades sound.
Why is there no sound?
Check that the unit is powered on, volume is not too low, the correct source is selected (CD, iPod, FM...), and sound is not muted. Ensure speakers are properly connected. If headphones are plugged in, speakers are muted.
How to set radio stations?
Press [TUNER] to select AM or FM. Use the TUNING [▲/▼] buttons to search for a station. For automatic presetting, press [PRESET MEMORY] then [ENTER]. You can also manually store by holding [PRESET MEMORY].
The CD won't play, what should I do?
Check that the disc is inserted with the printed side up. Clean the disc with a soft cloth from the center to the edge. If condensation has formed, let the unit rest for 2-3 hours before use. Some CD-R/RW discs may not be readable if not finalized.
How to play MP3 files from a USB flash drive?
Connect the USB flash drive to the front USB port. Press [iPod] to select the USB source. Use the navigation buttons to choose a folder or file. Press [▶/II] to start playback. Only MP3 files with .MP3 or .mp3 extension are recognized (FAT16/FAT32).
Can I use an iPod/iPhone with this device?
Yes, via the Lightning dock (on top) or via the USB port with a USB cable. Compatible with iPod touch (5th generation), iPod nano (7th), iPhone 5 and later models via USB. Remove the protective case before inserting into the dock.
How to set the timer for a music alarm?
First set the clock (button [TIMER] -> 'Clock'). Then press [TIMER] several times until 'TIMER XX' appears, select the source (FM, CD, iPod, etc.) with [▲/▼], confirm with [ENTER]. Set the start time then end time. Activate the timer with 'Timer On'. Put the unit in standby.
The remote control doesn't work, what to do?
Make sure the protective plastic film has been removed. Replace the CR2025 battery. Point the remote at the sensor (front panel). Keep away from strong light. If problem persists, replace the battery.
What to do in case of 'ERROR' or 'No Device' message?
For iPod/iPhone: disconnect and reconnect the device. Check that it is properly inserted in the dock (without case) or that the USB cable is well connected. For a USB flash drive: check that it is formatted in FAT16/32 and contains only MP3 files. Restart the amplifier by turning it off and on.
How to reset the amplifier to factory settings?
Turn the unit on, then hold down the [■] (stop) button and press the [ON/STANDBY] button. Release when 'RESET' appears. The reset clears radio presets and personal settings. Wait a few seconds for the unit to enter standby.

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Download the instructions for your Hi-Fi System in PDF format for free! Find your manual CS255 - ONKYO and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. CS255 by ONKYO.

USER MANUAL CS255 ONKYO

CD Receiver (CR-255)

Speakers (D-T15)

Instruction Manual

Thank you for purchasing an Onkyo CD Receiver System.

Please read this manual thoroughly before making any connections and plugging it in.

Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new CD Receiver System.

Please retain this manual for future reference.

Getting Started. En-2

Premiers pas.. Fr-2

Primeros pasos Es-2

Connections .En-13

Branchements Fr-13

Conexiones.. Es-13

Basic Operations.. En-16

Playing Your iPod/iPhone....En-20

Lecture d'un iPod/iPhone.... Fr-20

Reproducir su iPod/iPhone.... Es-20

Listening to the Radio .En-22

Écoute de la radio Fr-22

Playing a USB Flash Drive....En-24

Setting the CD Receiver .......En-24

Configuration de

I'Ampli-tuner CD Fr-24

Miscellaneous.. En-27

Divers .Fr-27

Various Es-27

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.

CAUTION:

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

ONKYO CS255 - CAUTION: - 1

WARNING RISK OF ELECTRIC SHOCK DO NOT OPEN

AVIS RISOQUE DE CHOICE ELECTRIQUE NE PAS OUVIR

ONKYO CS255 - CAUTION: - 2

ONKYO CS255 - CAUTION: - 3

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

ONKYO CS255 - CAUTION: - 4

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

Important Safety Instructions

  1. Read these instructions.

  2. Keep these instructions.

  3. Heed all warnings.

  4. Follow all instructions.

  5. Do not use this apparatus near water.

  6. Clean only with dry cloth.

  7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

  8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

  9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

  10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

  11. Only use attachments/accessories specified by the manufacturer.

  12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over.

ONKYO CS255 - Important Safety Instructions - 1
PORTABLE CART WARNING

  1. Unplug this apparatus during lightning storms or when unused for long periods of time.

  2. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

  3. Damage Requiring Service

Unplug the apparatus from the wall outlet and refer servicing to qualified service personnel under the following conditions:

A. When the power-supply cord or plug is damaged,

B. If liquid has been spilled, or objects have fallen into the apparatus,

C. If the apparatus has been exposed to rain or water,

D. If the apparatus does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the apparatus to its normal operation,

E. If the apparatus has been dropped or damaged in any way, and

F. When the apparatus exhibits a distinct change in performance this indicates a need for service.

  1. Object and Liquid Entry

Never push objects of any kind into the apparatus through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock.

The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases shall be placed on the apparatus.

Don't put candles or other burning objects on top of this unit.

  1. Batteries

Always consider the environmental issues and follow local regulations when disposing of batteries.

  1. If you install the apparatus in a built-in installation, such as a bookcase or rack, ensure that there is adequate ventilation.

Leave 20cm (8^ ) of free space at the top and sides and 10cm(4^ ) at the rear. The rear edge of the shelf or board above the apparatus shall be set 10cm(4^ ) away from the rear panel or wall, creating a flue-like gap for warm air to escape.

  1. Recording Copyright—Unless it's for personal use only, recording copyrighted material is illegal without the permission of the copyright holder.
  2. AC Fuse—The AC fuse inside the unit is not user-serviceable. If you cannot turn on the unit, contact your Onkyo dealer.
  3. Care -Occasionally you should dust the unit all over with a soft cloth. For stubborn stains, use a soft cloth dampened with a weak solution of mild detergent and water. Dry the unit immediately afterwards with a clean cloth. Don't use abrasive cloths, thinners, alcohol, or other chemical solvents, because they may damage the finish or remove the panel lettering.

4. Power

WARNING

BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME, READ THE FOLLOWING SECTION CAREFULLY.

AC outlet voltages vary from country to country. Make sure that the voltage in your area meets the voltage requirements printed on the unit's rear panel (e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).

The power cord plug is used to disconnect this unit from the AC power source. Make sure that the plug is readily operable (easily accessible) at all times.

For models with [POWER] button, or with both [POWER] and [ON/STANDBY] buttons:

Pressing the [POWER] button to select OFF mode does not fully disconnect from the mains. If you do not intend to use the unit for an extended period, remove the power cord from the AC outlet.

For models with [ON/STANDBY] button only: Pressing the [ON/STANDBY] button to select

Standby mode does not fully disconnect from the mains. If you do not intend to use the unit for an extended period, remove the power cord from the AC outlet.

5. Preventing Hearing Loss

Caution

Excessive sound pressure from earphones and headphones can cause hearing loss.

6. Batteries and Heat Exposure

Warning

Batteries (battery pack or batteries installed) shall not be exposed to excessive heat as sunshine, fire or the like.

  1. Never Touch this Unit with Wet Hands—Never handle this unit or its power cord while your hands are wet or damp. If water or any other liquid gets inside this unit, have it checked by your Onkyo dealer.

8. Handling Notes

  • If you need to transport this unit, use the original packaging to pack it how it was when you originally bought it.
  • Do not leave rubber or plastic items on this unit for a long time, because they may leave marks on the case.
  • This unit's top and rear panels may get warm after prolonged use. This is normal.

  • If you do not use this unit for a long time, it may not work properly the next time you turn it on, so be sure to use it occasionally.

  • When you've finished using this unit, remove all discs and turn off the power.

9. Installing this Unit

  • Install this unit in a well-ventilated location.
  • Ensure that there's adequate ventilation all around this unit, especially if it's installed in an audio rack. If the ventilation is inadequate, the unit may overheat, leading to malfunction.
  • Do not expose this unit to direct sunlight or heat sources, because its internal temperature may rise, shortening the life of the optical pickup.
  • Avoid damp and dusty places, and places subject to vibrations from loudspeakers. Never put the unit on top of, or directly above a loudspeaker.
  • Install this unit horizontally. Never use it on its side or on a sloping surface, because it may cause a malfunction.
  • If you install this unit near a TV, radio, or VCR, the picture and sound quality may be affected. If this occurs, move this unit away from the TV, radio, or VCR.

10. Moisture Condensation

Moisture condensation may damage this unit.

Read the following carefully:

Moisture may condense on the lens of the optical pickup, one of the most important parts inside this unit.

  • Moisture condensation can occur in the following situations:
  • The unit is moved from a cold place to a warm place.
  • A heater is turned on, or cold air from an air conditioner is hitting the unit.
  • In the summer, when this unit is moved from an air conditioned room to a hot and humid place.
  • The unit is used in a humid place.
  • Do not use this unit when there's the possibility of moisture condensation occurring. Doing so may damage your discs and certain parts inside this unit.

If condensation does occur, unplug the power cord and leave the unit for two to three hours in the room temperature.

This unit contains a semiconductor laser system and is classified as a "CLASS 1 LASER PRODUCT". So, to use this model properly, read this Instruction Manual carefully. In case of any trouble, please contact the store where you purchased the unit.

To prevent being exposed to the laser beam, do not try to open the enclosure.

CAUTION:

CLASS 1M VISIBLE AND INAVAILABLE LASER RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

The label on the right is applied on the rear panel.

ONKYO CS255 - CAUTION: - 1

  1. This unit is a CLASS 1 LASER PRODUCT and employs a laser inside th

  2. To prevent the laser from being exposed, do not remove the cover. Refer servicing to qualified personnel.

For U.S. models

FCC Information for User

FCC Caution:

FCC WARNING

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

NOTE:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

ONKYO CS255 - NOTE: - 1

WARNING

DO NOT INGEST BATTERY, CHEMICAL BURN HAZARD

The remote control supplied with this product contains a coin/button cell battery. If the coin/button cell battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to death.

Keep new and used batteries away from children. If the battery compartment does not close securely, stop using the product and keep it away from children.

If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.

CAUTION:

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.

For Canadian Models

NOTE:

THIS CLASS B DIGITAL APPARATUS COMPLIES WITH CANADIAN ICES-003.

For models having a power cord with a polarized plug:

CAUTION:

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Before Using Your New Speakers

  • Place the speakers on sturdy, flat surfaces. Putting them on uneven or unstable surfaces where they may fall and cause damage will affect the sound quality.
  • Do not keep water or other liquids close to the speakers. If a liquid is spilled over them, the woofer and tweeteter inside may be damaged.
  • Do not handle the speakers with wet or damp hands.

Speaker Precautions

The speakers can handle the specified input power when used for normal music reproduction. If they're fed any of the following signals, even if the input power is within the specified rating, excessive current may flow in the speaker coils, causing burning or wire breakage:

  1. Interstation noise from an untuned FM radio.
  2. Audio from a cassette that's being fast-forwarded.
  3. High-pitched sounds generated by an oscillator, electronic musical instrument, and so on.
  4. Amplifier oscillation.
  5. Special test tones from audio test CDs and so on.
  6. Thumps and clicks caused by connecting or disconnecting audio cables (always turn off your amplifier before connecting or disconnecting cables).
  7. Microphone feedback.

The speakers contain powerful magnets. Do not put metal items, such as screwdrivers, close to the speakers, as they may be attracted toward the magnet, causing injury, or damage to the tweeter diaphragm.

Using Close to a TV or Computer

TVs and computer monitors are magnetically sensitive devices and as such are likely to suffer from discoloration or picture distortion when conventional speakers are placed nearby. To prevent this, the speakers feature internal magnetic shielding. In some situations, however, discoloration may still be an issue. In this case, turn off your TV or monitor, wait 15 to 30 minutes, and then turn it back on again. This normally activates the degaussing function, which neutralizes the magnetic field, thereby removing any discoloration effects. If discoloration problems persist, try moving the speakers away from your TV or monitor. Note that discoloration can also be caused by a magnet or demagnetizing tool that's too close to your TV or monitor.

Note:

  • If the speakers are placed close to a TV or monitor, due to the electromagnetic waves radiated by the TV or monitor, you may hear noise from the speakers even after your amplifier has been turned off. To prevent this, position the speakers away from your TV or monitor.

Package Contents

Make sure you have the following items:

CD Receiver (CR-255)

Remote controller (RC-823S)

Indoor FM antenna

AM loop antenna

Power cord

(Connector type varies from country to country.)

CS-255 only

Speakers are included only with the CS-255.

Speakers (D-T15)

Speaker cables

8 floor pads

  • In catalogs and on packaging, the letter at the end of the product name indicates the color. Specifications and operation are the same regardless of color.

Using the Included Floor Pads for speakers (CS-255 only)

You can improve the sound quality by attaching the included floor pads to raise the speakers off the surface and reduce the contact area. The floor pads also make the speakers stable and prevent them from slipping.

ONKYO CS255 - Using the Included Floor Pads for speakers (CS-255 only) - 1

Using the Remote Controller

ONKYO CS255 - Using the Remote Controller - 1

Remove the plastic film before using the remote controller.

When using the remote controller, point it toward the CD receiver's remote control sensor, as shown below.

ONKYO CS255 - Using the Remote Controller - 2

Replacing the Battery

Use only a battery of the same type (CR2025).

Squeeze and pull to release the battery cover latch. You can remove the battery door with your fingernails by using the spaces set back in wall.

ONKYO CS255 - Replacing the Battery - 1

Note:

  • If the remote controller doesn't work reliably, try replacing the batteries.
  • If you intend not to use the remote controller for a long time, remove the batteries to prevent damage from leakage or corrosion.
  • Expired batteries should be removed as soon as possible to prevent damage from leakage or corrosion.

Caution:

  • Replacing the battery incorrectly may cause an explosion. Use only a battery of the same type or an equivalent.

General

CD tuner audio system with built-in iPod / iPhone*1*2 dock
- Super Bass (S.Bass) function for deeper bass sounds
- Bass and treble tone controls
- Line input for external audio source
- Headphones jack
- Dimmable display

Speakers (CS-255 only)

  • Stylish cabinet
  • 2 Way Bass-reflex

iPod

  • iPod/iPhone direct digital connection ^ *
  • Control your iPod/iPhone with the remote controller
  • iPod dock works with: iPod touch 5th generation, iPod nano 7th generation, iPhone 5
  • US B works with: iPod touch (1st, 2nd, 3rd, 4th, and 5th generation), iPod classic, iPod nano (2nd, 3rd, 4th, 5th, 6th, and 7th generation), iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, iPhone 3G, iPhone

Radio

AM/FM tuning
- 30 AM/FM preset
FM Auto Preset function

CD Player

  • Play audio CDs, MP3 CDs (CD-R and CD-RW)
  • RANDOM playback mode
  • 2-mode repeat function (current track or all tracks)

USB Flash Drive

  • MP3 playback from USB flash drives

Timer and Clock

  • Programmable timer
  • Sleep timer
  • The alarm play function of the iPod/iPhone can power-on the CD receiver and switch the input to iPod/iPhone*3

*1.

Made for

ONKYO CS255 - Timer and Clock - 1

iPhone

iPhone, iPod, iPod classic, iPod nano, iPod shuffle, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.

LightningTM is a trademark of Apple Inc. "Made for iPod" and "Made for iPhone" mean that an electronic accessory has been designed to connect specifically to iPod or iPhone, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod or iPhone may affect wireless performance.

2. Only an iPod/iPhone with a Lightning connector can be used by connecting it to the Lightning connector on the top panel of the CD receiver.
3. This functionality might not be available depending on the iPod/iPhone model or apps.

Getting Started

Important Safety Instructions. 2
Precautions. 3
Package Contents 6
Using the Included Floor Pads for speakers (CS-255 only) 6
Using the Remote Controller 6
Replacing the Battery 6
Features 7
Getting to Know the CD receiver 9
Top and Front Panels 9
Display. 10
Rear Panel. 10
Remote Controller. 11
Disc (Audio CD and MP3)
and USB Flash Drive (MP3) Notes 12

Connections

Connecting Speakers 13
Connecting the Antennas 14
Connecting an Outdoor FM Antenna. 14
Connecting Other Components 15
Connecting an Audio Playback Device. 15
Connecting the Power Cord. 15

Basic Operations

Basic Operations 16

Turning On the CD receiver. 16

Selecting the Input Source. 16

Adjusting the Volume. 16

Muting the CD receiver. 16

Using Headphones 16

Adjusting the Bass and Treble. 16

Using Super Bass. 16

Changing the Display Brightness. 16

Playing CDs

Playing CDs. 17

Playing CDs. 17
Displaying CD Information 17
Selecting MP3 Files. 18
Displaying MP3 Information. 19
Random Playback. 19
RepeatPlayback. 19

Playing Your iPod/iPhone

Playing Your iPod/iPhone 20

Playing an iPod/iPhone via iPod Dock. 20

Playing an iPod/Phone via USB. 20

Controlling Your iPod/Phone. 21

Navigating the iPod Menu with the Remote Controller. 21

Listening to the Radio

Listening to the Radio 22

Tuning into Radio Stations. 22

Preseting FM Stations Automatically (Auto Preset) 22

Presetting AM/FM Stations Manually. 23

Selecting Preset Stations. 23

Erasing Presets. 23

Playing a USB Flash Drive

Playing a USB Flash Drive 24

Setting the CD Receiver

Setting the CD Receiver 24

Setting the Clock. 24

Setting Auto Standby (ASb). 24

Using the Timer

Using the Timer 25

Programming the Timer 25

Turning Timer On and Off 26

Using the Sleep Timer 26

TimerPlayback using the Alarm Play Function of your iPod 26

Miscellaneous

Troubleshooting 27

Specifications 31

Top and Front Panels

ONKYO CS255 - Top and Front Panels - 1

For detailed information, see the pages in parentheses.

① ON/STANDBY button (16, 25, 26, 27)
② INPUT button (16, 20, 22, 23, 24)
③ Previous [I]PRESET [ ] button (17, 21, 23)
④ Next [▶▶]/PRESET [▶] button (17, 21, 23)
⑤ Stop [■] button (17, 21, 27)
⑥ Play/Pause [▶/II] button (17, 18, 19, 20, 21, 24)
⑦ VOLUME[-]/[+]buttons(16,21)

⑧ Headphones [C] jack (16)
USB port (20, 24)
10 Display
⑪ Disc tray (17)
Remote control sensor (6)
13 Open/Close [△] button (17)
14 Dock cover (20)
iPod/iPhone Dock (20)

ONKYO CS255 - Top and Front Panels - 2
Display

① SLEEP indicator
⑧ TIMER indicators
② Play ▶ and Pause I indicators
⑨ Tuning indicators
③ USBindicator
FILE indicator
④ FOLDERindicator
11 TRACK indicator
S.BASS indicator
② Message area
⑥ MUTING indicator
DISC, TOTAL, and REMAIN indicators
⑦ Playback mode indicators

ONKYO CS255 - Top and Front Panels - 3
Rear Panel

① FM ANTENNA jack
② AM ANTENNA jack
③ LINE IN jacks
④ SPEAKERS terminals
⑤ AC INLET

See pages 13 to 15 for connection information.

Remote Controller

ONKYO CS255 - Remote Controller - 1

For detailed information, see the pages in parentheses.

① CLOCKCALL button (24)
② MUTING button (16)
③ TIMER button (24, 25, 26)
④ Input Selector buttons (16, 20, 22, 23, 24)
Stop [■] (17, 21), Play/Pause [▶/■] (17, 18, 19, 20, 21, 24), [I<▲]/[▶→], PRESET [▲]/[▶] (17, 21, 23), [▲/<][▶→], TUNING [▲]/[▶] (17, 21, 22) buttons
⑥ VOLUME [-] /[+] buttons (16, 21)
⑦ MENU button (21)
Arrow [ ] / [ ] / [ ] / [ ] buttons and ENTER button
MODE button (18, 22)

DIMMER button (16)
⑪ SHUFFLE button (19, 21)
⑫ PLAYLIST [▲]/[▼] buttons (21)
⑬ On/Standby [b] button (16, 25, 26)
⑭ SLEEP button (24, 26)
15 PRESET MEMORY button (22, 23)
TREBLE/BASS buttons (16)
S.BASS button (16)
18 CLEAR button (16, 19, 22, 23)
19 REPEAT button (19, 21)
DISPLAY button (17, 19, 24, 25)

O

Precautions for Inkjet Printable Discs

Do not leave a CD-R/CD-RW having a label printed with an inkjet printer in the CD receiver for a long time. The disc could get stuck in the CD receiver, or could damage the CD receiver.

Remove the disc from the CD receiver when not being played, and store it in a case. A freshly printed disc will stick easily, and should not be played immediately.

Caring for Discs

If the disc is dirty, the CD receiver will have a hard time reading signals, and the audio quality may drop. If the disc is dirty, gently wipe off fingerprints and dust with a soft cloth. Lightly wipe from the center outwards.

To remove stubborn dust or dirt, wipe the disc with a soft cloth dampened with water, and then dry it with a dry cloth. Do not use cleaning spray for analog records or antistatic agents, etc. Never use volatile chemicals such as benzine

ONKYO CS255 - Caring for Discs - 1

or paint thinner as they can impregnate the disc surface.

Connecting Speakers

ONKYO CS255 - Connecting Speakers - 1
Right speaker Left speaker

ONKYO CS255 - Connecting Speakers - 2

  • Connect the right speaker to the CD receiver's right (R) SPEAKERS terminals. Connect the left speaker to the left (L) SPEAKERS terminals.
  • Pay close attention to speaker wiring polarity. Connect positive (+) terminals to only positive (+) terminals, and negative (-) terminals to only negative (-) terminals. If you get them the wrong way around, the sound will be out of phase and will sound unnatural.

  • Use the red line wires to connect the positive (+) terminals.

  • Do not connect anything other than the included speakers (D-T15). We cannot take responsibility for malfunctions or poor results if this CD receiver is used with any other speakers. (CS-255 only)
  • You can connect speakers with an impedance of between 6 and 16 ohms. (CR-255 only)
  • Do not connect both speaker cables to the same L or R terminals. Do not connect more than two speaker terminals to each speaker.

ONKYO CS255 - Connecting Speakers - 3

ONKYO CS255 - Connecting Speakers - 4

  • Be careful not to short the positive and negative wires. Doing so may damage the CD receiver and/or speakers.

ONKYO CS255 - Connecting Speakers - 5
+B-

Connecting the Antennas

This section explains how to connect the supplied indoor FM antenna and AM loop antenna.

The CD receiver won't pick up any radio signals if no antenna is connected, so you must connect the antenna to use the tuner.

Connecting the Indoor FM Antenna

ONKYO CS255 - Connecting the Indoor FM Antenna - 1

Note:

  • Once your CD receiver is ready for use, you'll need to tune into a radio station and position the antenna to achieve the best possible reception.

Connecting the AM Loop Antenna

The supplied indoor AM loop antenna is for indoor use only.

1 Assemble the AM loop antenna, inserting the tabs into the base, as shown.

ONKYO CS255 - Connecting the AM Loop Antenna - 1

2 Plug the AM loop antenna into the AM antenna jack, as shown.

ONKYO CS255 - Connecting the AM Loop Antenna - 2

Adjusting the AM Loop Antenna

Adjust the location and position of the AM antenna while listening to an AM station to achieve the best possible reception.

ONKYO CS255 - Adjusting the AM Loop Antenna - 1

Connecting an Outdoor FM Antenna

If you cannot achieve good reception with the supplied indoor FM antenna, try a commercially available outdoor FM antenna instead.

ONKYO CS255 - Connecting an Outdoor FM Antenna - 1

Note:

  • Outdoor FM antennas work best outside, but usable results can sometimes be obtained when installed in an attic or loft.
  • For best results, install the outdoor FM antenna well away from tall buildings, preferably with a clear line of sight to your local FM transmitter.

  • Outdoor antenna should be located away from possible noise sources, such as neon signs, busy roads, etc.

  • For safety reasons, outdoor antenna should be situated well away from power lines and other high-voltage equipment.
  • Outdoor antenna must be grounded in accordance with local regulations to prevent electrical shock hazards.

Using a TV/FM Antenna Splitter

It's best not to use the same antenna for both FM and TV reception, as this can cause interference problems. If circumstances demand it, use a TV/FM antenna splitter, as shown.

ONKYO CS255 - Using a TV/FM Antenna Splitter - 1

Connecting Other Components

ONKYO CS255 - Connecting Other Components - 1
e.g., cassette tape deck

About Connections

  • Before making any connections, read the manuals supplied with your other components.
  • Don't connect the power cord until you've completed and double-checked all connections.

Push plugs in all the way to make good connections (loose connections can cause noise or malfunctions).

ONKYO CS255 - About Connections - 1

Note:

  • Do not put anything on top of the CD receiver, as it may interfere with proper ventilation.

Connecting an Audio Playback Device

Using a suitable cable, connect the CD receiver's LINE IN jacks to the OUTPUT (PLAY) jacks of your cassette tape deck, TV, or other audio playback device.

Connecting the Power Cord

Connect the CD receiver's power cord to a suitable wall outlet.

Note:

  • Do not use any cord other than the included power cord.
  • Do not connect the included power cord to any other device. Doing so may cause malfunctions or accidents.
  • Do not unplug the power cord from the AC INLET while the other end of the cord is still connected to an AC outlet. You may receive an electric shock if you accidentally touch the internal terminals of the power cord.
  • Before connecting the power cord, connect all of your speakers and AV components.
  • Turning on the CD receiver may cause a momentary power surge that might interfere with other electrical equipment on the same circuit. If this is a problem, plug the receiver into a different branch circuit.
  • Plug the power cord into an AC outlet that is easily accessible so that you can quickly unplug it if necessary.

This section describes the procedure for using the remote controller, unless otherwise specified.

Turning On the CD receiver

Press the On/Standby [O] button.

The CD receiver comes on, and the display lights up. Press the On/Standby [O] button again to set the CD receiver to Standby.

You can also use the [ON/STANDBY] button on the CD receiver.

During the use of your iPod/iPhone connected to the iPod dock and/or the CD receiver with a USB cable, your iPod/iPhone will be charged even with the CD receiver on standby and "Charging" appears on the display of the CD receiver.

Tip:

  • For details on power management settings, see "Setting Auto Standby (ASb)" (see page 24).

Selecting the Input Source

You can select CD, iPod/USB, FM, AM, or LINE, which can be an external component.

To select the input source, use the remote controller's Input Selector buttons. On the CD receiver, press the [INPUT] button repeatedly.

The input sources are selected in the following order.

ONKYO CS255 - Selecting the Input Source - 1

Adjusting the Volume

To adjust the volume, use the VOLUME \([-]/[+\] buttons.

You can also use the CD receiver's VOLUME [-]/[+] buttons.

Muting the CD receiver

You can temporarily mute the output of the CD receiver.

Press the [MUTING] button.

The CD receiver is muted.

"Muting" appears on the display for a few seconds. The MUTING indicator flashes continuously while the CD receiver is muted.

Note:

  • To unmute, press the [MUTING] button again or adjust the volume.
  • Muting is automatically cancelled when the CD receiver is set to standby.

Using Headphones

You can connect a pair of stereo headphones ( 3.5mm 1/8-inch phone plug) to the CD receiver's headphones [C] jack for private listening.

Note:

  • Always turn down the volume before connecting your headphones.
  • While the headphones plug is inserted in the headphones [√] jack, the speakers are turned off.

Adjusting the Bass and Treble

Press the [BASS] or [TREBLE] button, and then use the arrow [ ] / [ ] buttons to adjust the bass or treble, respectively.

The default setting is "0". You can adjust the bass and treble from -5 to +5.

While adjusting the bass or treble, you can press the [CLEAR] button to return the setting to "0".

Note:

  • If you press no buttons for about 5 seconds, the previous display will appear automatically.

Using Super Bass

To turn on Super Bass, press the [S.BASS] button.

The setting will alternate between S.Bass Off, S.Bass 1, and S.Bass 2 each time you press the button.

To turn off Super Bass, press the [S.BASS] button repeatedly until "S.Bass Off" appears.

The default setting is "Off".

Note:

  • If you press no buttons for about 5 seconds, the previous display will appear automatically.

Changing the Display Brightness

You can adjust the brightness of the display.

Press the [DIMMER] button repeatedly to select: dim, or normal brightness.

This section describes the procedure for using the remote controller, unless otherwise specified.

Playing CDs

Press the CD receiver's [▲] button to open the disc tray.

Tip:

  • Pressing the [▲] button while the CD receiver is on Standby will turn on the CD receiver and open the discard tray.

2 Place CD on the tray with the label-side facing up.

Place 8cm CDs in the center of the tray.

3 To start playback, press the CD receiver's [▶/III] button.

Alternatively, press the remote controller's [▶/■] button.

The disc tray closes and playback starts.

Then the "▶" indicator appears.

To stop playback:

Press the [ ] button.

To pause playback:

Press the [ - / 口 ] button. The Pause "I" indicator appears. To resume playback, press the [ - / 口 ] button again.

To Fast-Forward or Fast-Reverse:

During playback, press and hold the Fast Forward [▶▶] button to fast forward, or the Fast Reverse [▶▶] button to fast reverse.

To remove the CD:

Press the CD receiver's [▲] button to open the disc tray.

Information Displayed When Playback is Stopped:

ONKYO CS255 - Playing CDs - 1
Audio CD

Selecting Tracks

To return to the beginning of the track currently playing, press the Previous [I▶] button.

Press the Previous [1] button repeatedly to select earlier tracks.

Press the Next [▶▶] button repeatedly to select subsequent tracks.

Displaying CD Information

During playback or while playback is paused, press the [DISPLAY] button repeatedly to display the following CD information.

  • Elapsed time
    ·“REMAIN”

Lights up while the remaining track time is being displayed.

·“TOTAL REMAIN”

Lights up while the remaining disc time is being displayed.

  • T y p e o f C D

Selecting MP3 Files

The files on an MP3 CD can be located at the disc's root level or within a folder.

A folder can contain additional folders, with other folders inside them in a hierarchical structure as shown in the following illustration.

A maximum of 648 files and folders (total) can be shown within a folder. Files and folders are listed alphabetically without distinction.

ONKYO CS255 - Selecting MP3 Files - 1

If you don't select a specific MP3 file or folder for playback, all of the MP3 files will be played in numerical order starting with file #1.

If random playback is selected, the files will not be played in the numerical order shown above. If you want the files to play in the numerical order shown above, you must cancel random playback (see page 19).

1 While playback is stopped, press the [MODE] button.

"FOLDER" will light, and the name of the first folder will be shown.

2 Use the arrow [] / [] buttons to select a folder.

Press the [ENTER] button or the [ ] button to enter the folder.

Repeat this operation to select the desired folder. When the "message is shown, you can press the [ENTER] button to return to the upper-level folder.

3 Use the arrow [ ] / [ ] buttons to select the MP3 files within the folder.

The name of the MP3 file inside the folder is displayed.

To select a different folder, press the [] / [] button, then use the [] / [] buttons to select the desired folder, and finally press the [ENTER] button. Use the [] / [] buttons to select the desired file.

4 To start playback, press the [ENTER] button or Play/Pause [▶/■] button.

Playback will start with the specified file and continue until all of the MP3 files have been played.

To select an MP3 file in another folder during playback, press the [MODE] button, select the folder by using the arrow [ ] / [ ] / [ ] / [ ] buttons, and then press the [ENTER] button. Now use the arrow [ ] / [ ] buttons to select the MP3 files within that folder.

■PausingPlayback

To pause playback, press the Play/Pause [▶/■] button.
To resume playback, press it again.

■Selecting a higher or lower folder

Press the [ ] button to select a higher-level folder, or the [ ] button to select a lower-level folder.

To return to the root

Press the [MODE] button, and then press the [MENU] button.

Displaying MP3 Information

You can switch the display by pressing the remote controller's [DISPLAY] button repeatedly.

1 During playback, press the [DISPLAY] button repeatedly to display the following MP3 information.

The information is shown in the following order.

Elapsed time: The length of time that the current MP3 file has been playing (default display).

Remain time: The length of remaining time for the current MP3 file.

File name: Name of the current MP3 file.

Folder name: Name of the current folder.

Sampling rate and Bit rate: Sampling rate and Bit rate of the current MP3 file.

Volume label: Title of the current disc.

Note:

  • Only single-byte alphanumeric characters can be shown.
  • A folder name, file name, or volume label that contains anything other than single-byte alphanumeric characters might be garbled.

Random Playback

With random playback, all of the tracks on the disc are played in random order.

Random playback can also be used in conjunction with repeat playback.

Note:

  • In the case of MP3 files, the same song might be played.

Random playback can be set when the input source is set to CD or USB.

Press the [SHUFFLE] button until the RANDOM indicator appears.
2 To start random playback, press the Play/ Pause [▶/■] button.

Cancelling Random Playback

To cancel random playback, press the [SHUFFLE] or [CLEAR] button.

When playing a CD, random playback will be cancelled automatically when the CD is removed.

Repeat Playback

With repeat playback, you can play an entire CD repeatedly or play one track repeatedly.

Repeat playback can also be used in conjunction with random playback.

1 Press the [REPEAT] button repeatedly until the REPEAT or REPEAT 1 indicator appears.

"REPEAT" will repeatedly play all songs.

"REPEAT 1" will repeatedly play the currently-playing song or the selected song.

Note:

  • If REPEAT 1 is selected, pressing the [SHUFFLE] button will cancel "REPEAT 1"; random playback will occur.

Cancelling Repeat Playback

To cancel repeat playback, press the [REPEAT] button repeatedly until both the REPEAT and REPEAT 1 indicators disappear.

When playing a CD, repeat playback will be cancelled automatically when the CD is removed.

This section describes the procedure for using the remote controller, unless otherwise specified.

  • Before using your iPod/iPhone with the CD receiver, be sure to update your iPod/iPhone with the latest software, available from the Apple Web site.
  • If you leave your iPod/iPhone paused when using it on its own, eventually it will go into hibernation. If you connect it to the CD receiver in this state, you'll need to wait a few moments before your iPod/iPhone is ready for use.
    Always remove your iPod/Phone before moving the CD receiver.
    Depending on your iPod/iPhone, or the type of content being played, some functions may not work as expected.

Playing an iPod/iPhone via iPod Dock

Gently push down and slide open the dock cover on the CD receiver.

iPod dock works with:

iPod touch 5th generation, iPod nano 7th generation, iPhone 5

Press the [iPod] button.

Alternatively, you can use the CD receiver's [INPUT] button.

Note:

  • Even if a USB flash drive is connected to the USB port, the iPod/iPhone input will be selected if an iPod/iPhone is connected to the iPod dock.
  • Even if an iPod/iPhone is connected to the USB port with the USB cable, the input from the iPod/iPhone connected to the iPod dock will be selected.

2 Insert your iPod/iPhone into the CD receiver's iPod dock.

ONKYO CS255 - Insert your iPod/iPhone into the CD receiver's iPod dock. - 1

Make sure your iPod/iPhone is properly seated in the CD receiver's iPod dock.

While reading the contents of your iPod/iPhone, the message "Connecting" appears on the CD receiver's display.

"DOCK" appears on the display of the CD receiver. If your iPod/iPhone is not connected properly, "No Device" appears.

Note:

  • To prevent damage to the Lightning connector, do not twist or force your iPod/iPhone into the dock, and be careful not to wiggle your iPod/iPhone while inserting it.
  • Do not use with any iPod/iPhone accessories, such as FM transmitters and microphones, as they may cause a malfunction.
  • If you use a case with your iPod/iPhone, always remove it before you insert it. Otherwise, it may not connect properly and a malfunction may occur.
  • When you remove your iPod/iPhone from the iPod dock, always close the dock cover afterward.

3 Press the Play/Pause [▶/II] button. Playback starts.

Playing an iPod/iPhone via USB

USB works with:

iPod touch (1st, 2nd, 3rd, 4th, and 5th generation), iPod classic, iPod nano (2nd, 3rd, 4th, 5th, 6th, and 7th generation), iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, iPhone 3G, iPhone

If an iPod/iPhone is connected to the iPod dock, disconnect the iPod/iPhone from the iPod dock.

Note:

  • When connecting an iPod/iPhone to the iPod dock and the USB port respectively, the iPod/iPhone connected to the iPod dock will be selected as a priority and the iPod/iPhone connected to the USB port with the USB cable cannot be played.

Press the [iPod] button.

Alternatively, you can use the CD receiver's [INPUT] button.

2 Connect the USB cable that comes with the iPod/iPhone to the USB port on the front of the CD receiver.

ONKYO CS255 - Connect the USB cable that comes with the iPod/iPhone to the USB port on the front of the CD receiver. - 1

While reading the contents of your iPod/iPhone, the message "Connecting" appears on the CD receiver's display.

"iPod" appears on the display of the CD receiver. If your iPod/iPhone is not connected properly, "No Device" appears.

Tip:

  • When connecting your iPod/iPhone with a USB cable, we recommend you use an official USB cable from Apple Inc.

3 Press the Play/Pause [▶/II] button. Playback starts.

Controlling Your iPod/iPhone

Pausing Playback

To pause playback, press the Play/Pause [▶/■] button.

Press the Play/Pause [▶/■] button again to resume playback. You can also pause playback by pressing the [■] button.

Selecting Tracks

To return to the beginning of the track that's currently playing or paused, press the Previous [▶] button.

Press the Previous [1] button repeatedly to select earlier tracks.

Press the Next [▶▶] button repeatedly to select subsequent tracks.

Fast-Forward or Fast-Reverse

During playback, press and hold the Fast Forward [▶▶] button to fast forward, or the Fast Reverse [▶▶] button to fast reverse.

Random Playback

Press the [SHUFFLE] button repeatedly to switch the random function of your iPod/iPhone.

Repeat Playback

Press the [REPEAT] button repeatedly to switch the repeat function of your iPod/iPhone.

■Selecting Playlist

Press the PLAYLIST [ ] / [ ] button to select the playlist.

Press the remote controller's [MENU] button to display the iPod menu.
2 Use the remote controller's arrow [] / [] / [] / [] buttons to select an item on the menu, and then press the [ENTER] button.

Note:

  • The volume level is adjusted by using the VOLUME [-]/[+] buttons on the CD receiver or its remote controller. Adjusting the volume on your iPod/iPhone has no effect.
    Depending on your iPod/iPhone, some functions may not work as expected.

This section describes the procedure for using the remote controller, unless otherwise specified.

Tuning into Radio Stations

When tuned to a station, the Tuned ( indicator appears. When receiving a stereo FM signal, the FM ST indicator appears as well.

The [MODE] button is used to select Auto mode or Mono mode. In Auto mode, the output will be stereo or mono depending on the station being received. In Mono mode, the output will be mono regardless of the station.

Press the [TUNER] button repeatedly to select "AM" or "FM".

Alternatively, you can use the CD receiver's [INPUT] button.

2 Use the TUNING [] / [] buttons to tune into a station.

Each time you press the [TUNING] button, the frequency changes 0.2MHz steps for FM and 10kHz steps for AM.

If you press and hold a [TUNING] button, the frequency will change continuously. Tuning will stop automatically when a frequency on which a radio station is broadcasting is found. If you want to interrupt this process, press the [CLEAR] button.

Tuning into weak stereo FM stations

If the signal from a stereo FM station is weak, it may be impossible to get good reception. In this case, press the [MODE] button to switch to Mono mode and listen to the station in mono.

Presetting FM Stations Automatically (Auto Preset)

With the Auto Preset function, you can automatically preset all of the FM radio stations available in your area in one go. Presets make it easy to select your favorite stations and eliminate the need to tune the radio manually each time you want to change stations.

As an alternative to this Auto Preset function, there's also a Manual Preset function that lets you manually preset individual FM stations (see page 23).

Auto Preset Caution!

Any existing presets will be deleted when the Auto Preset function is run.

Press the [TUNER] button repeatedly to select "FM".

Alternatively, you can use the CD receiver's [INPUT] button.

Make sure the FM antenna is positioned to achieve the best possible reception.

Press the [PRESET MEMORY] button.

"Auto Preset?" appears on the display.

3 To start the Auto Preset function, press [ENTER].

Up to 30 stations can be preset and presets are stored in frequency order.

If you want to interrupt the Auto Preset process, press the [CLEAR] button.

Note:

  • Depending on your location, a preset may be stored with no station, and you'll hear only noise when you select it. In this case, delete the preset (see page 23).

Presetting AM/FM Stations Manually

With the Preset Write function, you can manually preset individual AM and FM radio stations. Presets make it easy to select your favorite stations and eliminate the need to tune the radio manually each time you want to change stations.

FM stations can also be preset automatically (see page 22).

About Presets

You can store up to 30 AM and 30 FM stations as presets.

1 Tune into the station that you want to store as a preset (see page 22).
2 Press and hold down the [PRESET MEMORY] button to the preset number flashes (about 3 seconds).

When the preset has been stored, the preset number will change from blinking to steadily lit.

Preset numbers are automatically stored starting with the lowest unused number.

If all 30 AM or 30 FM presets have been set, the display will indicate "Preset FULL," and no further presets can be stored. You'll need to erase an existing preset before storing another one.

Selecting Preset Stations

You must store some presets before you can select them (see pages 22 to 23).

Press the [TUNER] button repeatedly to select "AM" or "FM".

Alternatively, you can use the CD receiver's [INPUT] button.

The preset you selected the last time you listened to the radio will be selected.

2 Use the PRESET [] / [] buttons to select a preset.

Press the PRESET [ ] button to select the previous preset. Press the PRESET [ ] button to select the next preset.

Tip:

  • If you press the remote controller's [TUNER] button while the CD receiver is on Standby, it will turn on automatically and the station that you listened to last time will be heard.

Erasing Presets

1 Select the preset you want to erase.
2 Press and hold down the [CLEAR] button to erase the preset (about 3 seconds).

When the preset has been erased, presets following the erased preset will be renumbered forward and redisplayed.

Playing a USB Flash Drive

This section describes the procedure for using the remote controller, unless otherwise specified.

If an iPod/iPhone is connected to the iPod dock, disconnect the iPod/iPhone from the iPod dock.

A USB flash drive cannot be used if an iPod/iPhone is connected.

Press the [iPod] button to select "iPod/USB".

Alternatively, you can use the CD receiver's [INPUT] button.

2 Insert a USB flash drive in the USB port.

ONKYO CS255 - Playing a USB Flash Drive - 1

3 To start playback, press the [▶/II] button.

Selecting folders and files, and using the random play and repeat play functions, are the same as when playing back MP3 files from a CD (see page 18).

Note:

  • Do not connect your USB flash drive via a USB hub.
  • When connecting or disconnecting a USB flash drive, use your hand to support the CD receiver so that it does not move.
  • For details on the usable formats for a USB flash drive, refer to page 12 "Playback from USB Flash Drives".
  • Even if a USB flash drive is connected to the USB port, the iPod/iPhone input will be selected if an iPod/iPhone is connected to the iPod dock.
  • Do not connect the CD receiver's USB port to a USB port on your computer. Music on your computer cannot be played through the CD receiver in this way.

Setting the CD Receiver

This section describes the procedure for using the remote controller, unless otherwise specified.

Setting the Clock

1 Press the [TIMER] button repeatedly until "Clock" appears, and then press [ENTER].
2 Use the arrow [] / [] buttons to enter the current hour, and then press [ENTER]. When the CD receiver is shipped from the factory, the time display format is set to 24-hour time. Set the current hour as it would appear in 24-hour time. If you want to set the current hour as 12-hour time, press the [DISPLAY] button.
3 Use the arrow [] / [] buttons to enter the current minute, and then press [ENTER]. The clock is set and the second dot starts flashing.

Displaying the Time

To display the time, press the remote controller's [CLOCK CALL] button. Press the button again or perform another operation to cancel the time display. If the CD receiver is on Standby, the time will be displayed for about 8 seconds.

While the CD receiver is on, the time are displayed continuously.

Change the time format

To change the time format between 12-hour and 24-hour, press the [DISPLAY] button.

Setting Auto Standby (ASb)

With Auto Standby, you can set the CD receiver so that it will be automatically turned off and enter the standby mode if there is no operation for 20 minutes with no audio input.

The default setting is "Off".

Make settings for this function while playback is stopped.

1 Press and hold down the remote controller's [SLEEP] button (about 3 seconds) to change the setting.

"AutoStby On" (On) or "AutoStby Off" (Off) appears on the CD receiver's display.

To switch between "On" and "Off", repeat this procedure.

This section describes the procedure for using the remote controller, unless otherwise specified.

The CD receiver has a programmable timer for automated playback, and a sleep timer for turning the CD receiver off after a specified period.

You can also use the alarm playback function of your iPod to initiate timer playback on the CD receiver.

The timer can be used to start AM/FM, CD, iPod/USB, or LINE playback at a specified time. You could, for example, use a timer to turn on the CD receiver every morning, just like a radio alarm clock.

Note:

  • If iPod is selected as the input source for the timer settings, USB will play if only a USB flash drive is connected, and iPod/iPhone will play if an iPod/ iPhone is connected.
  • When connecting an iPod/iPhone to the iPod dock and the USB port respectively, the iPod/iPhone connected to the iPod dock will be selected as a priority and the iPod/iPhone connected to the USB port with the USB cable cannot be played.

Programming the Timer

Note:

  • You must set the clock before you can program the timer.
  • When the CD receiver is turned on by the timer, playback will begin with the most recently received station in the case of AM/FM, the first song in the case of a CD or iPod/USB, and the current state of the connected device in the case of LINE.
  • Only one timer can be set.

1 Prepare the source that you want the timer to play.

If you want AM/FM to play, tune to the station you want to hear.

If you want a CD to play, insert the disc.

If you're using a USB flash drive rather than an iPod/iPhone, disconnect the iPod/iPhone from the iPod dock (see page 20).

If you want to play a device connected to LINE, make settings on the connected device so that it will start playing when the timer operates.

2 Press the [TIMER] button repeatedly until "Timer XX" appears.

"XX" indicates the source that was last selected for timer playback.

If you don't operate any buttons for about 5 seconds, the procedure will be cancelled and the previous display will reappear.

3 Use the arrow [ ] / [ ] buttons to select the source, and then press [ENTER].

You can select the following sources: AM/FM, CD, iPod/USB, LINE.

In the display, "TIMER" and a number indication will blink according to the input source you've selected.

The number will be "1" for AM/FM, "2" for CD, "3" for iPod/USB, and "4" for LINE.

If you don't operate any buttons for about 5 seconds, the procedure will be cancelled and the previous display will reappear.

4 Use the arrow [ ] / [ ] buttons to specify the hour at which you want the timer to play, and then press [ENTER].

5 Use the arrow [] / [] buttons to specify the minute at which you want to timer to play, and then press [ENTER].

6 Use the arrow [] / [] buttons to select "Timer On".

When a timer is turned on, its "TIMER" and number appears on the display.

If there is no operation for several seconds, the setting will be made with the currently-shown content.

The display will return to its previous state except for "TIMER" and the number of the selected input source; the timer is now set.

7 Press the On/Standby [O] button to set the CD receiver to Standby.

Tip:

  • If you decide to cancel during this procedure without making timer settings, press the [TIMER] button.
  • By pressing the [DISPLAY] button when specifying the time, you can switch between 12-hour and 24-hour displays.

Note:

  • Be sure to set the CD receiver to Standby, otherwise the timed operation will not work.

If the timer has been set, timed operation will work even if the SLEEP timer caused the CD receiver to enter Standby mode.

Once the timer has been turned on, playback will start at the same time every day. Be sure to turn off the timer before leaving on vacation (see page 26).

  • If the timer turns the power on, the "SLEEP" indication will light. If no operation is performed for one hour, the CD receiver will automatically enter Standby mode. If you perform any operation, the "SLEEP" indication will turn off, and the CD receiver will continue operating.

Turning Timer On and Off

Once a timer has been programmed, you can turn it on or off as necessary. For example, while you're on holiday, you may want to turn off the timer you use as an early morning alarm.

Press the [TIMER] button repeatedly until "Timer On" or "Timer Off" appears.
2 Use the arrow [] / [] buttons to select either "Timer On" (set) or "Timer Off" (cancel).

If there is no operation for several seconds, the setting will be made with the currently-shown content, and the display will return to its previous state.

If you specify Timer On (set), the "TIMER" indication and the number of the selected input source will light.

If you select Timer Off (i.e., turn off the timer), the "TIMER" indicator will disappear.

Using the Sleep Timer

With the sleep timer, you can set the CD receiver so that it automatically turns off after a specified period.

Press the [SLEEP] button repeatedly to select the required sleep time.

With the [SLEEP] button, you can set the sleep time from 90 to 10 minutes in 10 minute steps. When the sleep timer has been set, the SLEEP indicator appears on the display. The sleep time appears on the display for about 3 seconds, then the previous display reappears.

Checking the Remaining Sleep Time

To check the remaining sleep time, press the [SLEEP] button.

Note that if you press the [SLEEP] button while the sleep time is being displayed, you'll shorten the sleep time by 10 minutes.

For example if you press the [SLEEP] button and the remaining time is shown as 55 minutes, pressing the [SLEEP] button once again will shorten this time to 50, and each subsequent press will shorten the time in 10 minute increments.

Canceling the Sleep Timer

To cancel the sleep timer, press the [SLEEP] button repeatedly until "Sleep Off" appears.

Note:

  • If the timer turns the power on, the "SLEEP" indication will light. If you perform any operation, the "SLEEP" indication will turn off. If you want to set the SLEEP timer, you'll need to make the setting again after the "SLEEP" indication turns off.

Timer Playback using the Alarm Play Function of your iPod

When the alarm play function of the iPod connected to the CD receiver starts playing a song, the CD receiver will power-on and switch to the iPod input.

1 On your iPod, make settings for its alarm play function.
2 Connect your iPod (see page 20).
3 Repeatedly press the [TIMER] button to make the iPod alarm mode "iPodAlarmOff" message appear.
4 Use the arrow [ ] / [ ] buttons to select "iPodAlarmOn".

If there is no operation for several seconds, the setting will be made with the currently-shown content, and the display will return to its previous state.

5 Press the On/Standby [ ] button to set the CD receiver to Standby.

When the alarm play function of the iPod begins, the CD receiver will power-on and the input will be switched to iPod.

Note:

  • In order for the timer to work, the CD receiver must be in standby mode.
  • This function will not work if the iPod is not connected.
  • This function won't work when the sound set for the alarm is a built-in sound (Beep).
  • This function won't work with models on which music files cannot be used to set the alarm sound.

Tip:

  • This function will power-on the CD receiver and switch the input to iPod when it detects a song being played back by the iPod. If you play back a song on the iPod without using its alarm play function, the CD receiver will power-on and switch to the iPod input in the same way.

If you have any trouble using the CD receiver, look for a solution in this section.

If you can't resolve the issue yourself, try resetting the CD receiver before contacting your Onkyo dealer.

To reset the receiver to its factory defaults, turn it on and, while holding down the CD receiver's stop [■] button, press the [ON/STANDBY] button.

When the display indicates "RESET," release the buttons. After a while, the CD receiver will enter standby mode.

Note that resetting the CD receiver will delete your radio presets and custom settings.

ONKYO CS255 - Tip: - 1

ONKYO CS255 - Tip: - 2
ON/STANDBY

Power

Can't turn on the CD receiver.

  • Make sure that the power cord is properly plugged into the wall outlet (see page 15).
  • Make sure that the power cord is properly plugged into the CD receiver's AC INLET (see page 15).
  • Unplug the power cord from the wall outlet, wait 30 minutes or more, then plug it in again.

The CD receiver turns off unexpectedly.

  • If the sleep timer has been set and the SLEEP indicator is shown on the display, the CD receiver will turn off automatically after a specified period (see page 26).
    The CD receiver will automatically enter standby mode when Auto Standby has been set and launches (see page 24).

Audio

There's no sound.

  • Make sure the CD receiver's volume is not set too low (see page 16).
  • Make sure the correct input source is selected (see page 16).
  • Make sure the CD receiver is not muted (see page 16).
  • Check all connections and correct as necessary (see pages 13 to 15).
  • While headphones are connected, the speakers output no sound (see page 16).
  • If there's no sound from an external device connected to LINE IN, check whether the external device's audio output level (volume) might be too low.

The sound quality is not good.

  • Make sure the speaker cables are connected with the correct polarity (see page 13).
  • Make sure all audio connecting plugs are pushed in all the way (see page 15).
  • The sound quality can be affected by strong magnetic fields, such as that from a TV. Try moving any such devices away from the CD receiver.
  • If you have any devices that emit high-intensity radio waves near the CD receiver, such as a cellular phone that's being used to make a call, the CD receiver may output noise.
  • The CD receiver's precision drive mechanism may emit a faint hissing sound while reading discs during playback or when searching for tracks. You may be able to hear this noise in extremely quiet environments.

Audio output is intermittent when the CD receiver is subjected to vibration.

  • The CD receiver is not a portable device. Use it in a location that's not subject to shock or vibration.
  • Make sure that the included rubber pads are attached to the speakers (see page 6).

Headphones output is intermittent or there's no sound.

  • This may be due to dirty contacts. Clean the headphones plug. See your headphones' instruction manual for cleaning information. Also, make sure that the headphones cable is not broken or damaged.

ONKYO CS255 - Headphones output is intermittent or there's no sound. - 1

Audio performance.

  • Audio performance will be at its best about 10 to 30 minutes after the CD receiver has been turned on and had time to warm up.
  • Using cable ties to bundle audio cables with speaker or power cables may degrade the sound quality, so don't do it.

CDPlayback

The disc will not play.

  • Make sure the disc has been loaded correctly, with the label-side facing up.
  • Check to see if the surface of the disc is dirty (see page 13).
  • If condensation is suspected, turn on the CD receiver and leave it for 2 to 3 hours before playing any discs.
  • Some CD-R/RW discs may not be playable (see page 12).

It takes a long time for playback to start.

  • It may take the CD receiver a while to read CDs that contain many tracks or files.

Playback jumps.

  • The CD receiver is being subjected to vibration or the disc is scratched or dirty (see page 13).
  • The volume may be too loud. Turn down the volume (see page 16).

Can't play MP3 Discs.

  • Use only ISO 9660 Level 1 or Level 2 format discs (see page 12).
  • The disc has not been finalized. Finalize the disc.
  • Check whether the file format is supported (see page 12).
  • MP3 files without a“.MP3” or“.mp3” filename extension are not recognized.

iPod/iPhone

There's no sound.

  • When connecting an iPod/iPhone to the iPod dock and the USB port respectively, the iPod/iPhone connected to the iPod dock will be selected as a priority and the iPod/iPhone connected to the USB port with the USB cable cannot be played.
  • Make sure your iPod/iPhone is properly seated in the CD receiver's iPod dock. Even very thin iPod/iPhone cases can prevent the iPod/iPhone from seating properly on the Lightning connector, so always remove any case before inserting your iPod/iPhone (see page 20).
  • Make sure the CD receiver is turned on, the input source is set to iPod, and the volume is not set too low.
  • Make sure that your iPod/iPhone is compatible with the system (see page 7).

The message "ERROR" is displayed.

Try reconnecting your iPod/iPhone.

Can't control your iPod/iPhone with the CD receiver's remote controller.

  • Make sure your iPod/iPhone is properly seated in the CD receiver's iPod dock. Even very thin iPod/iPhone cases can prevent the iPod/iPhone from seating properly on the Lightning connector, so always remove any case before inserting your iPod/iPhone (see page 20).
  • Your iPod/iPhone may not work soon after it is connected to the CD receiver. In this case, wait a few moments until your iPod/iPhone wakes up.
  • Depending on your iPod/iPhone model, its software version, or the content you're playing, some functions may not work as expected (see page 20).
  • The iPod/iPhone might not be connected if its power is turned off, or if it is insufficiently charged. Check the state of your iPod/iPhone.

The message "No Device" is displayed.

  • Try reconnecting your iPod/iPhone.

Can't recharge the iPod/iPhone.

  • Check the iPod/iPhone connection.
  • Depending on the state of your iPod/iPhone, the CD receiver might not be able to charge it. Try using the dedicated charging method provided for the iPod/iPhone.

USB Flash Drive Playback

Can't access the music files on a USB flash drive.

  • Make sure that an iPod/iPhone is not connected to the iPod dock. If an iPod/iPhone is connected, disconnect it.
  • The CD receiver supports USB flash drives only. Note, however, that playback may not be possible with some USB flash drives.
  • Make sure that the USB flash drive has been formatted as FAT16 or FAT32.
  • USB flash drives with built-in USB hub functionality are not supported.
  • This CD receiver cannot play files other than MP3 files.

The message "No Device" is displayed.

  • Try reconnecting your USB flash drive.

Can't play MP3 files.

  • MP3 files without a .MP3 or .mp3 filename extension are not recognized.
  • Check whether the file format is supported (see page 12).
  • The MP3 file's copyright option is on. Don't use the copyright option.

Tuner

Reception is noisy, stereo FM reception suffers from hiss, the Auto Preset function doesn't preset all stations, or the FM ST indicator doesn't light up when tuned to a stereo FM station.

  • Check the antenna connections (see page 14).
  • Change the position of the antenna (see page 14).
  • Move the CD receiver away from a nearby TV or computer.
  • Cars or airplanes can cause noisy interference.
  • The radio signal will be weakened if it has to pass through a concrete wall before reaching the antenna.
  • Switch to Mono mode and listen in mono. The FM ST indicator will go off (see page 22).
  • If none of the above improves the reception, install an outdoor antenna (see page 14).
  • When listening to an AM station, noise may be heard when you operate the remote controller.

If a power failure occurs or the power cable is disconnected.

  • A brief power outage will not cause the contents of memory to be lost. However if the power cable is left disconnected for an extended period of time, only the clock settings (including the timer) will be reset. Please make these settings again as necessary (see pages 22 and 23).

Can't adjust the frequency of the radio.

  • Use the remote controller's TUNING [] / [] buttons to change the frequency of the radio (see page 22).

Remote Controller

The remote controller doesn't work properly.

  • Replace the battery with a new one.
  • The remote controller is too far away from the CD receiver, or there's an obstacle between them (see page 6).
    The CD receiver's remote control sensor is being subjected to bright light (inverter-type fluorescent light or sunlight).
  • The CD receiver is located behind the tinted glass doors of an audio rack or cabinet.

External Components

No sound is heard from your turntable.

  • Make sure the turntable has a built-in phono equalizer. If the turntable doesn't have a phono equalizer built-in, you must provide one.

Timer

The timer doesn't work.

  • Make sure the clock has been set correctly (see page 24).
  • Timed operation will fail if the CD receiver is on at the specified On time, so make sure it's set to Standby (see page 25).
  • If you press the [TIMER] button while a timed operation is in progress, the timer will be cancelled.
  • The volume setting for timer playback will be the volume that was set before the CD receiver entered standby mode. Set the appropriate volume beforehand.
  • If a power failure occurs and the clock stops, the timer will also be reset. Reset the clock, and then make timer settings.

Clock

The display indicates "---:---" when you press the [CLOCK CALL] button.

  • A power failure has occurred, and the clock has stopped. Set the clock again (see page 24).

Others

Standby power consumption.

  • Charging will begin when you connect an iPod/iPhone, causing the power consumption to increase. Charging will occur even if the CD receiver enters standby mode.

Onkyo is not responsible for damages (such as CD rental fees) due to unsuccessful recordings caused by the unit's malfunction. Before you record important data, make sure that the material will be recorded correctly.

The CD receiver contains a microcomputer. In very rare situations, severe interference, noise from an external source, or static electricity may cause it to malfunction or lock up. In the unlikely event that this should happen, unplug the power cord, wait at least 30 minutes, and then plug it back in again. If this doesn't resolve the issue, reset the CD receiver to its factory defaults (see page 27).

Amplifier

Rated output power All channels:

15 watts minimum continuous power per channel, 6 ohm loads, 2 channels driven at 1kHz with a maximum total harmonic distortion of 10% (FTC) 2ch × 15W at 6 ohms, 1kHz , 2 ch driven of 10% (IEC)

THD + N (total harmonic distortion +N )

0.5% (1kHz 1 W)

Damping factor 60 (Front, 1kHz 8Ω)

Input sensitivity and impedance (Unbalance)

1000 mV/47 kΩ (LINE)

Frequency response 50Hz - 20kHz / + 0dB, - 3dB

Tone control characteristics +10dB -10dB 100Hz (BASS) +10dB -10dB 10kHz (TREBLE) +4dB / + 8dB 80Hz (S.BASS 1/2)

Signal to noise ratio 84 dB (LINE, IHF-A)

Speaker impedance 6 - 16 Ω

Tuner

FM

Tuning frequency range 87.5 - 107.9 MHz

Preset channel 30

AM

Tuning frequency range 530 - 1710 kHz

Preset channel 30

CD

Playable media CD and CD-R/CD-RW (music CDs and MP3 CDs)

USB

Playable media USB Flash Drive (MP3)

General

Power supply AC 120V 60Hz

Power consumption 30W

No-sound power consumption 7 W (when not charging iPod/iPhone)

Stand-by power consumption 0.35 W (when not charging iPod/iPhone)

Dimensions (W× H× D) 215× 100× 273mm (8-7/16" × 3-15/16" × 10-3/4")

Weight 2.5 kg (5.5 lbs.)

Audio input

Analog input LINE

Audio output

Speaker outputs L, R

Phoncs 1

Other

USB 2.0 HS

Speakers D-T15 (CS-255 only)

Type 2 way bass-reflex

Impedance 6Ω

Maximum input power 30 W

Output sound pressure level 82 dB/W/m

Frequency response 55Hz - 50kHz

Crossover frequency 4.5 kHz

Cabinet capacity

Dimensions (W× H× D)

3.4 liter (0.12 cubic feet)

130× 210× 172mm

(5 - 1 / 8^ × 8 - 1 / 4^ × 6 - 3 / 4^ )

(incl. grille and projection)

Weight 1.6 kg (3.5 lbs.)

Driver units 10 cm (3-15/16") Cone Woofer

2 cm (3/4") Balanced Dome
Tweeter

Terminal Spring Type Color Coded

Other Magnetic shielding

Specifications and features are subject to change without notice.

ATTENTION:

AFIN DE REDUIRE LES RISQUES D'INCENDIE ET DE DECHARGE ELECTRIQUE, NE PAS EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDITE.

DANGER:

AFIN D'EVITER TOUT DANGER DE DECHARGE ELECTRIQUE, NE PAS OUVRIR LE BOITIER (OU L'ARRIERE) DE L'APPAREIL. CONFIER TOUT TRAVAIL D'ENTRETIEN OU DE REPARATION A UN TECHNICIEN QUALIFIE.

ONKYO CS255 - DANGER: - 1

WARNING

SK OF ELECTRIC SHOCK

DO NOT OPEN

A VIS

RISQUE DE CHOC ELECTRIQUE

NE PAS OUYRIF

ONKYO CS255 - A VIS - 1

ONKYO CS255 - A VIS - 2

La lecture commence.

La lecture commence.

+4 dB/+8 dB, 80 Hz (S.BASS 1/2)

Rapport signal/bruit 84 dB (LINE, IHF-A)

Alternatively, you can use the following method to determine the pH of the solution:

  • "TOTAL REMAIN" (RESTANTE TOTAL)

+4 dB/ +8 dB, 80 Hz (S.BASS 1/2)

Senal al ratio de ruido 84 dB (LINE, IHF-A)

Impedancia del altovoz 6-16Ω

Sintonizador

FM

18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.

For Dealer, Service, Order and all other Business Inquiries:

Tel: 201-785-2600 Fax: 201-785-2650

http://www.us.onkyo.com/

For Product Support Team Only:

1-800-229-1687

http://www.us.onkyo.com/

Europe

Onkyo Europe Electronics GmbH

Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY

Tel: +49-8142-4401-0 Fax: +49-8142-4208-213

http://www.eu.onkyo.com/

Onkyo Europe Electronics GmbH (UK Branch)

Meridien House, Ground floor, 69 - 71 Clarendon Road, Watford, Hertfordshire, WD17 1DS, United Kingdom

Tel: +44 (0)8712-00-19-96 Fax: +44 (0)8712-00-19-95

China

Onkyo China Limited (Hong Kong)

Unit 1033, 10/F, Star House, No 3, Salisbury Road, Tsim Sha Tsui Kowloon, Hong Kong.

Tel: 852-2429-3118 Fax: 852-2428-9039

http://www.hk.onkyo.com/

Onkyo China PRC (Mainland)

1301, 555 Tower, No.555 West NanJing Road, Jing'an District, Shanghai, China 200041,

Tel: 86-21-52131366 Fax: 86-21-52130396

http://www.cn.onkyo.com/

Asia, Oceania, Middle East, Africa

Please contact an Onkyo distributor referring to Onkyo SUPPORT site.

http://www.intl.onkyo.com/support/

The above-mentioned information is subject to change without prior notice.

Visit the Onkyo web site for the latest update.

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Product information

Brand : ONKYO

Model : CS255

Category : Hi-Fi System