RPDS250 - Radio Sunstech - Free user manual and instructions

Product Type	Portable Radio
Brand	Sunstech
Model	RPDS250
Dimensions (Approx.)	200 x 130 x 70 mm
Weight (Approx.)	0.5 kg
Power Supply	AC 230V / 50Hz or 3 x AA batteries
Radio Bands	AM / FM
Display	LCD with backlight
Speaker	Built-in, 3W
Headphone Jack	3.5 mm
Telescopic Antenna	Yes, for FM reception
Preset Stations	Up to 20
Clock / Alarm	Built-in clock with alarm function
Sleep Timer	Yes
Cleaning Instructions	Wipe with a soft, dry cloth. Do not use liquid cleaners.
Safety Precautions	Keep away from water and moisture. Do not open the device.
Spare Parts Availability	Contact Sunstech support for replacement parts (e.g., antenna, battery cover).
Repair Information	Refer to manual or qualified technician. Device is not user-serviceable.

Frequently Asked Questions - RPDS250 Sunstech

How do I set the clock on my Sunstech RPDS250 radio?

Press and hold the Clock button until the hour digits flash. Use the Tuning Up/Down buttons to set the hour, then press Clock again to set minutes. Press Clock to confirm.

Can I use batteries to power the radio?

Yes, the RPDS250 can operate on 3 x AA batteries (not included) for portable use. When using batteries, the AC power cord should be unplugged.

How do I scan and save radio stations?

Press the Auto Scan button to automatically search and store stations. To manually tune, use the Tuning knob. Press and hold a Preset number (1-20) to save the current station.

Why is there no sound coming from the radio?

Check the volume level and ensure the radio is not muted. Verify the power source (AC or batteries) is connected. If using headphones, ensure they are not plugged in or check the headphone jack.

How can I improve FM reception?

Extend the telescopic antenna fully and adjust its position. For better reception, try moving the radio closer to a window or away from electronic devices that may cause interference.

Can I set an alarm on this radio?

Yes, press the Alarm button to enter alarm settings. Use the tuning buttons to set the alarm time and choose between wake to radio or buzzer. Press Alarm to confirm.

What are the dimensions of the Sunstech RPDS250?

The approximate dimensions are 200 x 130 x 70 mm (width x height x depth). It is a compact portable radio.

Is there a sleep timer function?

Yes, press the Sleep button repeatedly to set the timer (15, 30, 45, 60 minutes). The radio will automatically turn off after the set time.

How do I clean the radio?

Wipe the exterior with a soft, dry cloth. Do not use any liquid or aerosol cleaners as they may damage the device. Keep the ventilation slots free of dust.

Can I connect an external antenna?

The radio is equipped with a built-in telescopic antenna for FM. For external antenna connection, check the back panel; if an antenna input is present, you can connect a standard external FM antenna (not included).

USER MANUAL RPDS250 Sunstech

Portable USB/SD Radio Player

Technical line drawing of a rectangular mechanical part with a central circular feature and side flanges (no text or symbols)

MODEL NO: RPDS250RD

IMPORTANT SAFETY INSTRUCTIONS

When used in the directed manner, this unit has been designed and manufactured to ensure your personal safety.

However, improper use can result in potential electrical shock or fire hazards. Please read all safety and operating instructions carefully before installation and use, and keep these instructions handy for future reference. Take special note of all warnings listed in these instructions and on the unit.

Water and Moisture

The unit should not be used near water. For example: near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a set basement.

Ventilation

The unit should be situated so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug or similar surface that may block the ventilation openings. Also, it should not be placed in a built-in installation, such as a bookcase or cabinet, which may impede the flow of air through the ventilation openings.

Heat

The unit should be situated away from heat sources such as radiators, heat registers, stoves or other appliances (including amplifiers) that produce heat.

Power Source

The unit should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.

Cleaning

The unit should be cleaned only as recommended. See the

section "Care and Maintenance" of this manual for cleaning instructions.

Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into any openings or vents located on the product.

Lightning and Power Surge Protection

Unplug the unit from the wall outlet. This will prevent damage to the product due to lightning and power-line surges.

Overloading

Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire of electric shack.

Damage Requiring Service

This unit should be serviced by qualified service personnel when: Objects have fallen into or liquid has been spilled into the enclosure.

The unit has been exposed to rain.

The unit has been dropped or the enclosure damaged.

The unit exhibits a marked change in performance or does not operate normally.

Periods of Nonuse

If the unit is to be left unused for an intended period of time, such as a week or longer, remove the battery to prevent damage or injury from possible battery leakage.

Servicing

The user should not attempt to service the unit beyond those methods described in the user's operating instructions.

Service methods not covered in the operating instructions should be referred to qualified service personnel.

LOCATIONS OF CONTROLS

FRONT VIEW

3

1. MODE button

-Press this button to select different play modes: RADIO/ AUX-IN /USB/CARD

1. Button

.In USB/CARD mode: to return to the beginning of current track or previous track

.In radio memory selecting mode: to select the channel number downward

1. ▶▶| Button.

.In USB/CARD mode: to advance to the next track

.In radio memory selecting mode: to select the channel number upward

4. PRESET Button

.In Radio mode: to enter the radio memory selecting mode.

5. RPT(Repeat)/MEM Button

.In USB/CARD mode: to access to the Repeat-1, Repeat Folder, Repeat All mode.

In Radio mode: to save radio preset station

4

6. Vol-Button

To adjust volume level down

7. Vol+ Button

. To adjust volume level up
8. ▶|| Button
.In USB/CARD mode: to start of interrupt play
9. SD/MMC card slot
10. USB port
11. 3.5mm AUX-IN Jack
12. Power ON/OFF Switch
13. USB Charge port
14. DC 5V Jack (for charging only)
15. Battery compartment
16. FM Telescopic Antenna

POWER SOURCE

This unit is operated by 1pc 3.7V rechargeable lithium ion battery (included, which is exactly the same as the BL-5C battery from Nokia).

BATTERY INSTALLATION

To install the battery:

1.) Remove the battery compartment door.
2.) Follow the polarity to install the accompanied 3.7V lithium ion battery
3.) Replace the battery compartment door.

WARNING:

• Be sure that the battery is installed correctly.

• Only batteries of the same or equivalent type as recommend are to be used.

• If the unit is not to be used for an extended period of time, remove the battery to prevent damage or injury from possible battery leakage.
  -Do not dispose of the battery in fire, the battery may explode or leak.

BATTERY CHARGING

The installed battery can be charged by using the accompanied charger that you plug into the wall socket and the other end into the DC 5V charge port, the charging indicator on the charger will light up with Red color, once it is fully charged, the light turns to Blue.

It can also charge through the USB connector cable when attached to a computer.

GETTING STARTED

Before the first use, we recommend to charge up the accompanied battery for 4 hours to get the battery full.

Listening to FM Radio

Setting up the Antenna

Extend the telescopic antenna fully for best reception.

Tuning and Playing the Radio

1.Slide the Power ON/OFF switch to ON position to turn on the unit.
2. Press MODE button on the main unit until FM icon appears on the display to enter Radio mode.
3. Press ▶/ button to fine tune the radio frequency.
4. Press and hold ▶▶/按钮 for searching radio frequency automatically.

Notes:

-Manual tune to select weaker stations that might be by skipped during automatic tuning

-If the automatic tuning does not stop on the exact frequency of the station, for example, it stops on 100.8MHz instead of 100.6MHz, use the manual tuning method to fine tune to the exact frequency of the desired station.

-During FM Radio mode, if you plug USB or SD/MMC card into the unit, the play mode will automatically change to USB or SD playback mode.

Preset Stations

The unit allows you to store up to 30 FM stations for easy recall at any time.

1. Tune to the radio station you want to store in memory by using ▶▶ or ◀◀ button
2. Press RPT/MEM button, the memory channel number "P 01" will show on the display, meanwhile, the Radio icon "FM" flashes simultaneously
3. Press ▶▶/ ▶ button to select the channel number you desire to set.
4. Press RPT/MEM button again to confirm the preset location.
5. Repeat steps 2-4 to store more stations if necessary.

Recalling Stored Preset Stations

1. Press PRESET button on the unit during Radio mode to enter the radio memory selecting mode.
2. Press ▶▶/ button to select the preset channel

USB/SD OPERATION

1. Slide the Power ON/OFF switch to ON position to turn on the unit.
2. Connect your USB device or SD/MMC card to the unit to access "USB" or "CARD" mode, the relevant "USB" or "CARD" icon appears on the display. The USB or SD/MMC card will start playing automatically once the contents scanning is finished.

-Press ▶ "PLAY/PAUSE" button to pause or resume playback.

-Press "VOL+" or "VOL-" button to raise up/lower the volume level.

-Press "▶▶" button to skip to next track or press "◀" button to the previous track.

-Press and hold "▶▶|" or " " | button to search during the desired music.

-Press "RPT/MEM" button to change the Repeat mode in the following cyclical manner:

Repeat All (default repeat mode) → Repeat-1 → Repeat older

-To remove your USB device or SD/MMC card, simply stop the playback and gently unplug it from the connector.

If you are using an iPod or other MP3/digital audio player which can not plug in this unit directly, you can still play it on the unit via an audio connecting cable.

1. Plug one end of the 3.5mm audio cable (excluded) into the headphone or line out jack on your player, plug the other end of cable into the unit AUX-IN jack of the unit.

2. Turn on the external audio source and play your device.

3. Slide the Power ON/OFF switch to ON position to turn on the unit.

4. Press MODE button until "AUX" icon appears on the display.

1. The volume level can now be controlled through the main unit. Operate all other functions on the external device as usual.

Notes:

1). If you're connected to the Line out Jack of your external device, then you only need to adjust the volume control of this unit. If you're connected to the Headphone Jack of your external device, then you may need to adjust both the volume control of your external device and the volume control of this unit to find the most desirable volume setting.
2) Slide the Power ON/OFF switch to OFF position to turn off the unit when you finish listening.
Don't forget to switch off the power of your external device as well. 3). During AUX mode, if you plug USB or SD/MMC card into the unit the play mode will automatically change to USB or SD playback mode.

CARE AND MAINTENANCE

-Do not subject the unit to excessive force, shock, dust or extreme temperature.

-Do not tamper the internal components of the unit.

-Clean the unit with a damp (never wet) cloth except metal contact or speaker grille, Solvent or detergent should never be used.

-Avoid leaving your unit in hot, humid or dusty places.
-Keep your unit away from heating appliances and sources of electrical noise such as fluorescent lamps or motors.
-Always keep your finger dry and clear before touching all the buttons.
-Do not dispose of batteries in fire, batteries may explode or leak.

SPECIFICATIONS

Battery capacity (included): 1000 mAH

Charging Voltage: DC 5V

Charging Time: 4 Hours

Max Play Time: 2.5 Hours

Music Format supports: MP3, WMA

USB Format supports: 2.0 (up to 16GB)

Memory card type supports: MMC & SD (up to 16GB)

FM Frequency: 87.5-108 MHz

Working Temperature: -5°C +40°C

Working Humidity: 20% \~ 80%

Warranty conditions

-The warranty of this product is for 2 years since the purchase date.
-The warranty will exclude breakdowns caused by bad use of the product, wrong installation or installation in not desirable places for a proper maintenance of the product, rips, updates of the products that are not the supplied by the brand, pieces wore away for its use or for not domestic or inappropriate use. Also are excluded breakdowns caused for manipulations of the products by people or companies alien to our company.
-For any request regarding the warranty terms, the purchase receipt must be attached.

sunstech ¹²

Lector de Radio Portátil USB/SD

Technical line drawing of a rectangular mechanical part with a central circular feature and flange (no text or symbols)

1.Botón MODO

Technical line drawing of a rectangular mechanical part with a central circular feature and flange (no text or symbols)

1.Botão MODO