K 206 AFC - Headphones AKG - Free user manual and instructions

USER MANUAL K 206 AFC AKG

User Instructions p. 7

Please read the manual before using the equipment!

FCC Statement (applies to 916 MHz version only)

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 the 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.

Shielded cables and I/O cords must be used for this equipment to comply with the relevant FCC regulations.

Changes or modifications not expressly approved in writing by AKG Acoustics may void the user's authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

1 Introduction

Dear customer:

Thank you for purchasing an AKG product.

The K 206 AFC wireless headphone system is based on advanced UHF transmission technology.

In order to make optimum use of the benefits of your K 206 AFC, please take a few minutes to read the instructions below carefully before operating the equipment.

Please keep the manual for future reference.

2 Description

The K 206 AFC headphone system

• uses state-of-the-art UHF radio transmission technology;
• features an "Autotuning" function that automatically tunes the headphones to the transmitter frequency for optimum reception;
• connects to any audio, video, TV set, PC, or notebook computer with a headphones, line, or recording output;
• provides perfect sound reproduction, full mobility, and signal transmission through walls and ceilings over a distance of up to 100 feet/30 m (864 MHz: 330 feet/100 m) under ideal transmission conditions (free field).

To share your listening enjoyment with other persons, you can operate your transmitter with several headphones simultaneously. K 206 AFC headphones are available separately.

3 Safety and Environment

3.1 Safety

1. Operate the headphones with two AAA size 1.2 V rechargeable (supplied) or 1.5 V dry batteries only.
2. Never try to charge dry batteries using the transmitter's charging feature.
3. Before charging the headphones batteries, always make sure that the batteries in the headphones are rechargeable types.
4. Dispose of spent dry or rechargeable batteries conforming to local waste disposal rules. Never throw batteries into fire.
5. Operate the transmitter with the supplied 12 VDC, 200mA AC adapter only. Check that the AC voltage stated on the AC adapter is the same as that available in your country. Using the transmitter with a different AC adapter voids the warranty.
6. Always switch the headphones OFF after use.
7. Never try to open the headphone or transmitter case. Refer servicing to qualified service personnel only.
8. Never place the equipment near heat sources such as radiators or electric heaters or expose it to direct sunlight, excessive dust, humidity, rain, temperatures below freezing, or impacts.
9. Never use alcohol, petroleum-based cleaners, or paint thinners to clean the headphones or transmitter.

10. Use the equipment for the applications described in this manual only. AKG cannot accept any liability for damages resulting from improper handling or misuse.

11. Also refer to section 7 Important Notes.

3.2 Environment

1. The AC adapter will draw a small amount of current even when the transmitter is switched off. To save energy, disconnect the AC adapter from the power outlet if you will leave the equipment unused for a long period of time.
2. When scrapping the equipment, separate the case, circuit boards, and cables, and dispose of all components in accordance with local waste disposal rules.
3. The packaging of the equipment is recyclable. To dispose of the packaging, make sure to use a collection/recycling system provided for that purpose and observe local legislation relating to waste disposal and recycling.

4 Unpacking

Your headphone system package contains the following components:

K 206 AFC headphones for 864 MHz (item no. 6000 H 1351) or for 916 MHz (item no. 6000 H 1361)

T 206 AFC transmitter

Connecting cable with stereo mini jack plug and L/R RCA plugs for connecting the transmitter to your audio source

AC adapter for powering the transmitter (12 V DC, 200 mA)

Two 1.2 V AAA size NiMH, 550 mAh rechargeable batteries for powering the headphones

If any of the above items should be missing from the package, contact your AKG dealer immediately.

5 Controls

5.1 Headphones (Fig. 1)

1. POWER: switches power to the headphones ON and OFF.
2. Status LED: illuminates to indicate power to the headphones is ON.
3. Charging socket
4. Battery compartment (beneath the detachable ear pad)
5. AUTOTUNING switch and LED: activates the automatic tuning function
6. VOLUME control

5.2 Transmitter (Fig. 2)

1. AUDIO IN: audio input jacks
2. DC 12 V: DC input jack for AC adapter
3. FREQ: frequency selector
4. Charging contacts
5. POWER ON: this green LED is lit to indicate power to the transmitter is on.
6. CHARGE: this red LED is lit to indicate the batteries inside the headphones are being charged.

6 Setting Up

6.1 Connecting the Transmitter to AC Power

1. Connect the cable on the supplied AC adapter to the DC 12 V jack (8) on the transmitter rear panel as shown in fig. 3.
2. Check that the AC voltage stated on the AC adapter is the same as that available in your country. If it is, connect the AC adapter to a convenient AC outlet (see fig. 4). The transmitter will automatically be ready to operate. Note that the transmitter will switch on as soon as it detects an audio signal at one of the AUDIO IN jacks.

6.2 Connecting the Transmitter to Your Audio Source

You may connect the transmitter to a headphone output (mini jack or 1/4" jack), LINE, or REC outputs.

6.2.1 Connecting to a Headphones Output

1. Before connecting the transmitter to your audio source, switch the audio source OFF.

2. Referring to fig. 5, plug the red RCA connector (right channel) on the supplied connecting cable into the red AUDIO IN R socket (7) and the white RCA connector (left channel) into the white AUDIO IN L socket (7) on the transmitter rear panel.

3. Connect the stereo mini jack plug on the connecting cable to the headphones output of your audio source (fig. 6).

4. If the headphones output on your equipment is a 1/4" jack, plug the supplied mini jack to 1/4" adapter jack onto the connecting cable. Connect the adapter jack to the headphones output.

6.2.2 Connecting to a LINE or REC Output

1. Before connecting the transmitter to your audio source, switch the audio source OFF.
2. Referring to fig. 7, plug the red RCA connector (right channel) on the supplied connecting cable into the red LINE OUT R or REC OUT R socket and the white RCA connector (left channel) into the white LINE OUT L or REC OUT L socket on your audio source.
3. Connect the stereo mini jack plug on the connecting cable to the stereo jack (7) on the transmitter rear panel (see fig. 8).

6.3 Charging the Batteries

In order to ensure the longest possible service life for the rechargeable batteries, we deliver them uncharged. Therefore, you will need to charge the supplied batteries before first operating your headphones system.

Important!

If you operate the headphones on dry batteries (see section 6.4), never try to charge the batteries

using the transmitter's charging feature. This would cause serious damage to your headphone system.

Dispose of dead batteries conforming to local waste disposal rules.

1. Remove the ear pad from each arophone as shown in fig. 9.
2. Referring to fig. 10, insert a battery into each battery compartment (4). Make sure to align the batteries with the polarity marks inside the battery compartments.
3. Replace the ear pads on the earphones.
4. Referring to fig. 11, place the headphones on the transmitter such that the charging contacts (3) on the bottom of the right-hand earphone will engage the charging contacts (10) on the transmitter.

The CHARGE LED (12) on the transmitter will be lit to indicate that the batteries in the headphones are being charged.

The batteries will be fully charged after approximately 24 hours. (The CHARGE LED (12) will remain lit.) You may leave the headphones on the transmitter for as long as you like without risking overcharge the batteries.

Important!

To maintain full battery capacity for as long as possible, discharge the batteries completely about once a month:

1. Switch the headphones on and leave them outside the transmitter until the status LED (2) extinguishes.
2. Recharge the batteries as described above.

6.4 Replacing Batteries

The capacity of any rechargeable battery will decrease over time. If you feel that you need to recharge the supplied batteries more often than would be convenient, replace both batteries with new AAA size, 1.2 V, 550 mAh rechargeable or 1.5 V alkaline dry batteries.

1. Remove the ear pad from each earphone as shown in fig. 9.
2. Remove the dead batteries.
3. Referring to fig. 10, insert one new battery into each battery compartment (4). Make sure to align the batteries with the polarity marks inside the battery compartments.
4. Replace the ear pads on the earphones.

6.5 Setting Up the System

1. Remove the headphones from the transmitter.
2. Switch ON the audio source to which the transmitter is connected.

If audio signal is present at the transmitter input, the POWER ON LED (11) on the transmitter will be lit constantly.

Note: If no signal arrives at the transmitter input for approx. 3 minutes, the transmitter will automatically switch off and the POWER ON LED (11) will extinguish.

1. Set the FREQ selector (9) on the transmitter to its center position.
2. Use the POWER switch (1) to switch the headphones on, so that the status LED (2) will be lit.
3. Press the AUTOTUNING switch (5) on the headphones. The red AUTOTUNING LED will be lit.

The Autotuning function will automatically tune the reception frequency to the carrier frequency set on the transmitter. After a few seconds, you should hear the signal in the headphones clearly and free of interference.

If your first try fails, set the FREQ selector (9) on the transmitter to a different position and press AUTOTUNING (5) again.

FREQ (9) lets you select one of three different carrier frequencies.

1. Set the VOLUME control (6) on the headphones to the desired volume level.

6.6 POWER ON/CHARGE LED Indications

CHARGE	POWER ON	Status
OFF	LIT	Transmitter is con- nected to AC power and audio source and receives signal. Headphones are not on the trans- mitter, charging function is off.
LIT	OFF	Transmitter is con- nected to AC power. Headphones are on the transmitter, charging function is on.
OFF	OFF	Transmitter has detected no signal for several min- utes, headphones are not on the transmitter, charging function is off, OR transmitter is not connected to AC power.

7 Important Notes

1. Operating switches on or connecting the transmitter to your audio source may cause clicks which at high volume settings may affect your hearing. Therefore, be sure to set the VOLUME control on the headphones to minimum before switching between different sources (tuner, turntable, CD player, etc.) or connecting the transmitter.
2. Listening over headphones at high volume levels, particularly over extended periods of time, may damage your hearing.
3. Your K 206 AFC is a radio frequency device that conforms to the strict European standards. For physical reasons that have nothing to do with the quality of the product, extremely strong interference sources may affect reception.

In order to maintain interference-free listening pleasure, do not operate your K 206 AFC in the close vicinity of radio equipment, cellular telephones, or directly above TV or computer monitor picture tubes (see fig. 12). The supplied connecting cable is long enough to allow the trans

mitter to be placed at a safe distance from interference sources.

Interference caused by other users of the same frequency band is beyond AKG's control.

8 Specifications

System Performance
Modulation:	FM
Carrier frequency band:	864 MHz (LPD band) or 916 MHz
Selectable carrier frequencies:	FREQ 1: 863.5/915.5 MHz FREQ 2: 864.0/916.0 MHz FREQ 3: 864.5/916.5 MHz
T 206 AFC Transmitter
Power supply:	12 VDC, 200 mA
Radiation angle:	approx. 360°
Max. radiated power:	10 mW ERP (Equivalent Radiated Power)
Max. range (free field*):	916 MHz: approx. 100 ft. (30 m)
	864 MHz: approx. 330 ft. (100 m)
Weight:	approx. 10 oz. (280 g)

K 206 AFC Headphones

Distortion:	<1%
Type:	semi-open dynamic headphones
Power supply:	3 VDC (2 x 1.2 V, 550 mAh AAA size NiMH recharge-able batteries supplied)
Battery life:	approx. 15 hours (NiMH rechargeable batteries)
Frequency range:	18 Hz to 20,000 Hz
Max. SPL:	105 dB SPL
Weight (inc. of batteries):	approx. 10 oz. (280 g)

• under ideal transmission conditions

This equipment in its 864 MHz version conforms to the standards listed in the Declaration of Conformity. To order a free copy of the Declaration of Conformity, visit http://www.akg.com or contact [e-mail].

9 Troubleshooting

Problem	Possible Cause	Remedy
No sound.	1. AC adapter is not connected to transmitter and/or AC outlet.2. Transmitter is not connected to audio source.3. Connected audio source is switched off.4. Volume control on audio source is at zero.5. Batteries are low.6. Headphones are switched off.7. VOLUME control on headphones is at zero.	1. Connect AC adapter to transmitter and/or AC outlet.2. Connect transmitter to audio source.3. Switch audio source on to feed signal to transmitter input.4. Set audio source volume to desired level.5. Charge batteries.6. Switch headphones on.7. Set VOLUME control to desired level.
POWER ON and CHARGE LEDs are not lit.	1. Transmitter is not connected to AC power.2. Batteries are not correctly aligned with polarity marks.3. Headphones are incorrectly positioned on transmitter.	1. Connect transmitter to AC power.2. Check orientation of batteries in headphones.3. Place headphones on transmitter correctly.
Mono sound on headphones.	1. Connected audio source operates in mono mode.2. Transmitter is not correctly connected to audio source.	1. Switch audio source to stereo mode.2. Check cable connection between transmitter and audio source.
Loud noise.	1. Transmitter and receiving frequencies are not identical.2. Audio level at transmitter input is too low.3. Input signal is noisy.4. Batteries are dead.5. Transmitter position.	1. Press AUTOTUNING switch on headphones or use FREQ selector to select different carrier frequency and press AUTOTUNING on head-phones.2. Increase audio source volume.3. Check audio source.4. Charge batteries.5. Relocate transmitter (refer to fig. 11).
Distorted sound.	1. Audio level at transmitter input is too high.2. Transmitter and headphones carrier frequencies do not match.3. Batteries are dead.	1. Decrease audio source volume.2. Use FREQ selector on transmitter to select different carrier frequency and press AUTOTUNING switch on headphones.3. Charge batteries.

1 Introduction

AKG Acoustics GmbH herewith declares that the K 206 AFC + T 206 AFC is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

To order a free copy of the Declaration of Conformity, visit http://www.akg.com or contact [e-mail].

AKG ACOUSTICS, U.S.
914 Airpark Center Drive, Nashville, TN 37217, U.S.A., Tel: [phone], Fax: [phone], www.akgusa.com, e-mail: [e-mail]

For other products and distributors worldwide see our website: www.akg.com