AHP612 - Ecouteur ALTEC LANSING - Free user manual and instructions

USER MANUAL AHP612 ALTEC LANSING

• Transmitter/charging base

• User’s manual and quick connect card

The AHP612 headphones expand and enhance your enjoyment of

music or TV sound. Like FM radio, the 900MHz signal travels with ease

through walls, floors, ceilings and other obstacles, delivering high

quality stereo sound to virtually anywhere inside the house or out.

Delivering drift- and static-free reception along with outstanding

range — up to 150 feet (Range may vary according to environment) —

the possibilities for enjoying your AHP612 headphones are nearly

The AHP612 headphones are compatible with most audio sources, such

as TVs, DVD players, VCRs, A/V receivers/amps, stereos, computers, and

portable devices (CD players, cassette players, MP3s etc.).

Location of Functions

Headphones (left ear cup)

Headphones (right ear cup)

Transmitter Front View:

Transmitter Back View:

Connecting the Headphone System

Powering the Transmitter

Connect the small, round plug from the transmitter AC power adapter

(O) to the transmitter power input jack (N) and plug the other end

of the transmitter AC power adapter (O) into any standard 120V AC

Note: There is no transmitter ON/OFF switch. The transmitter is

designed to be left plugged in and powered at all times. If you do not

intend to use the AHP612 headphones for an extended period of time,

you may wish to unplug the transmitter AC power adapter.

Connecting to an AV receiver or television

• Locate the included red and white RCA cable (P).

• Connect one end of the RCA cable (P) to the matching red and white

RCA audio input jacks (M) located on the back of the transmitter

and the other end to the back of your AV receiver.

Connecting to a computer:

• Locate the included red and white RCA cable (P) and 3.5mm

Y-adapter cable (Q).

• Connect the Y-adapter cable’s 3.5mm plug (Q) to the audio output

jack on your computer.

• Connect one end of the RCA cable (P) to the matching red and white

RCA jacks on the Y-adapter cable (Q), and the other end to the

matching red and white RCA jacks located on the back of the

Warning: This product is designed to work with line level outputs or

headphone outputs only. DO NOT connect it directly to speaker

outputs as it will per

manently damage the transmitter

(A) Self-adjusting headband

(B) Battery compartment cover

(C) On/off/scan button

(D) LINK indicator light

(E) Charging contacts

(N) Transmitter power input jack

(O) Transmitter AC power adapter

(Q) 3.5mm Y adapter cable

(R) 3 NiMH AAA batteries

CHANNEL1 2 3LEVELL INPUT RDC 12VCHANNEL1 2 3LEVELL INPUT RDC 12VCHANNEL1 2 3LEVELL INPUT RDC 12V2

Powering the Headphones

The AHP612 headphones can be powered by three rechargeable

AAA Nickel Metal Hydride (Ni-MH) batteries (supplied, (R)) or any

other NiCd or alkaline batteries.

Inserting the Batteries

1. Remove the left ear-cushion.

2. Insert batteries following polarity (“+” and “–”) as diagrammed

inside the battery compartment.

• Make sure that the headphones’ “ON/OFF/SCAN” button (C) is

ned off and the LINK indicator light is unlit.

• Place the headphones on the transmitter, ensuring that the charging

contacts (E) on the left ear cup sit securely on the charging contacts

on the transmitter base. The CHARGE indicator light (I) on the

transmitter will turn on when the headphones are seated properly.

Use: Charge Time: Average 10–12 hours

Play Time: 6–8 hours*

*Play time as shown above reflects use of batteries in good condition.

• The AHP612 headphones can also be powered by three AAA alkaline

batteries (not included). You may experience slightly longer play

time with alkaline batteries, but you will not be able to recharge

them, as you can with the supplied NiMH or NiCd rechargeable

• The AHP612 built-in charger will charge rechargeable NiMH

(supplied, (R)) or NiCd batteries only. DO NOT attempt to charge

any other batteries except those specified above.

• The included NiMH batteries can be charged at any time, without

any adverse memory effect, whereas NiCd batteries must be fully

discharged before they can be recharged in order to avoid a

reduction in performance. For this reason we recommend continued

use of the supplied NiMH.

epeated use, even Ni-MH batteries will eventually

wear out. If, after a full charge, you notice a) dramatically decreased

playing time, b) the power indicator light begins to dim quickly

and/or c) static interference occurs within a short time of turning

the headphones on, it may be time to r

eplace the batteries.

• The charger will not overcharge the batteries if left to charge longer

than shown above. However, if you do not intend to use the

headphones for an extended period of time, it is r

you unplug the transmitter from the AC power outlet.

• Battery life depends on frequency of use, time, and care.

Adjusting the Transmitter

Transmitter Front View:

Transmitter Back View:

• Turn ON your audio source (i.e., A/V receiver, TV, portable CD player,

etc.) and play music at a normal listening volume.

• Set the channel select switch (K) on the back of the transmitter to

1, 2 or 3. The transmitter provides three different broadcasting

frequencies. In the event that you experience poor reception or

interference, try choosing a different frequency by moving the

channel select switch to another position.

• Turn the input level control (L) down (all the way to the left —

your left when looking at the front of the transmitter).

• Check the audio level indicator light (J) on the front of the

transmitter. If the light flickers intermittently (about half the time),

proceed to the next section. If the light does not blink or is flickering

very rapidly, turn the input level control (L) slowly up (to the right —

your right when looking at the front of the transmitter) until the

light flickers intermittently.

Note: if the light does not flicker, please check the following:

• Confirm that the transmitter AC power adapter (O) is securely

• Confirm that the audio input cable coming out of the transmitter

is securely connected to the audio source output (TV, A/V receiver,

• Turn the input level control (L) slowly up (to the right — your right

when looking at the front of the transmitter) and check if the

transmitter is connected to a variable audio output, such as a

headphone jack or TV audio output. Adjust the volume on the audio

source up or down as necessary to make the audio level indicator

light (J) flickers intermittently. If you are unclear as to the kind of

output (variable or fi

e using, please see the section

(N) Transmitter power input jack3

Tuning the Headphones

Headphones (left ear cup)

Headphones (right ear cup)

1. Push the ON/OFF/SCAN button (C) on the headphones to turn the

headphones on. The LINK indicator light (E) will turn red. The LINK

indicator light (D) will turn amber, indicating that the headphones

are tuned to the transmitter. You should hear sound coming from

2. Adjust the volume (H) as desired.

3. The headphones will automatically retune if they lose the signal

from the transmitter. However, you can also push the ON/OFF/SCAN

button (C) to retune the headphones at any time. Allow 10 to 15

seconds for the headphones to lock into the transmitter. The amber

“tuned” indicator light will come on after the headphones have

been successfully tuned.

Note: Interference in the form of static and/or distortion can

sometimes be heard. If this occurs, confirm the transmitter/headphone

adjustments and indicators. If the problem persists, refer to the

Troubleshooting section of this manual.

Turning the Headphones Off

• Press and hold the ON/OFF/SCAN button (C) for about 2 seconds to

turn the headphones OFF. The LINK indicator light (E) will go off to

indicate that the headphones have been tur

• Place the headphones on the transmitter to recharge the batteries.

Note: Only the rechargeable NiMH and NiCd batteries can be charged.

Please refer to the Charging Batteries section of this manual for

Muting the Headphones

• Press the MUTE button (F) to mute the headphones. The MUTE

indicator light (G) will turn on to indicate that the headphones have

• Press the MUTE button (F) again to turn off the mute function.

More Helpful Information

About Fixed-Level Audio Outputs:

A fixed-level, or line-level audio output is considered ideal since it

provides an audio signal unchanged by adjustments to the audio

source volume control.

Hint: Fixed-level audio outputs from stereo receivers/amps will typically

be designated as Tape, Tape 1, and Tape 2 outputs, or VCR audio

output connections. These outputs are frequently marked on A/V

equipment as ‘TAPE OUTPUT,’ ‘TAPE OUT,’ ‘TAPE REC, or ‘TAPE RECORD

Please note: Jacks labeled PHONO, CD, LD, DVD or tape or VCR

playback (PB) are INPUTS and will not work with the transmitter. Fixed-

level outputs from TVs are usually marked as ‘Constant,’ ‘Fixed,’ or

‘Select.’ If they are not marked as such, they are probably variable

outputs (see “About Variable-Level Audio Outputs” below). Outputs

from VCRs are almost always fixed.

Hint: When connecting to the audio outputs of a VCR, remember that

the VCR must be playing a tape or showing a TV channel for sound to

About Variable-Level Audio Outputs:

A variable-level output, such as a headphone jack or certain line audio

outputs, provides an audio signal that changes with the volume level

set on the audio source. As the volume of the audio source is adjusted

up and down, so does the audio signal strength sent to the transmitter.

This can affect the quality of sound generated by the headphones, and

may require an adjustment of the volume level of the audio source to

produce a signal strong enough for the transmitter.

Hint: On most bookshelf-type or compact stereo systems, inserting a

headphone plug into the headphone jack results in automatic cut-off

of the regular, or hard-wired speakers.

Hint: Most TVs, regardless of age or price, have variable outputs. If you

are unsure which of your TV audio outputs is fixed, refer to the TV

instruction manual. Some TVs have outputs that can switch between

variable and fixed. When given a choice, fixed is always recommended.

Check that the transmitter AC power adapter (O) is fully inserted into the wall outlet and the power cord from the AC

adapter is firmly connected to the transmitter power input jack (N).

Confirm that the headphones are turned ON and tuned to the transmitter — the amber LINK indicator light should be

Confirm that the mute function is off by pressing the MUTE button (F) on and off. The MUTE indicator light (G) should

Check that the AAA batteries are fresh and inserted with correct polarity (+, –).

Check that the audio source component (stereo, TV, etc.) is turned on and transmitting sound as it normally should.

Check that the headphones volume is turned up (H).

e using a Tape 2 Monitor output from your receiver/amp as the audio output, check that you have pressed

the Tape Monitor/Tape 2 button on the front of the receiver. This will turn on the Tape 2 outputs, which may not have

Check that the audio level indicator light (J) is flickering intermittently. If the light is not intermittent and you know you

are using a fixed level audio source, play music on your audio source while adjusting the input level control on the back

of the transmitter. Adjust the level control until the light begins to blink intermittently again.

OR If the transmitter is connected to a variable output, make sure the input level control (L) is turned up (all the way to the

right — your right when looking at the front of the transmitter), and adjust the volume on the audio source up or down

as necessary to make the light flicker intermittently.

Change the position of the channel select switch (K) to change the operating frequency. The headphones will detect the

loss of signal and retune automatically. However, you can also press the ON/OFF/SCAN button once to make the

Change the location of the transmitter. Place it as high and away from obstructions as possible. Avoid placing the

transmitter directly on top of or behind a TV.

Move the transmitter and headphones closer together. Sending the signal through certain materials, such as glass, tile,

and metal, can decrease the effective transmitting distance of the system.

issue cause and solution

The following troubleshooting guide takes you through some of the more common problems associated with the installation and/or operation of

these wireless headphones. If the problem persists, please call 1-800-732-6866 and a knowledgeable customer service representative will assist you.

• Effective transmitting range: up to 150 feet*

• Adjustable audio level input

• 3 selectable broadcast frequencies (between 912.5 and 914.5 MHz)

• UL-listed AC power adapter

Frequency response: 30 Hz – 20 kHz

• Signal-to-noise ratio > 55dB

• Distortion: < 1.5%

• *Maximum range; results may vary according to environment.

• 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

eceived, including inter

ence that may cause undesir

Changes or modifications not expressly approved by the party

responsible for compliance could void the users authority to operate

• Features and specifications subject to change without notice.5

Altec Lansing Technologies, Inc.

One Year Limited Warranty

(Two-Year Limited Warranty In The European Union

What Does The Warranty Cover?: Altec Lansing warrants that its

products shall be free from defects in materials or workmanship, with

the exceptions stated below.

What Is The Period Of Coverage?: For units purchased in European

Union or Asia, this warranty runs for two years from the date of

purchase. For units not purchased in Europe or Asia, this warranty runs

for one year from the date of purchase. The term of any warranties

implied by law shall expire when your limited warranty expires. Some

states and/or Member States in the European Union do not allow

limitations on how long an implied warranty lasts, so the above

limitation may not apply to you.

What Does The Warranty Not Cover?: This warranty does not cover any

defect, malfunction or failure that occurs as a result of: improper

installation; misuse or failure to follow the product directions; abuse;

or use with improper, unintended or faulty equipment. (For

information on proper installation, operation and use consult the

manual supplied with the product. If you require a replacement

manual, you may download a manual from

www.alteclansing.com.)

Also, consequential and incidental damages are not recoverable under

this warranty. Some states do not allow the exclusion or limitation of

incidental or consequential damages, so the above limitation or

exclusion may not apply to you.

What Will Altec Lansing Do To Correct The Problem?: Altec Lansing

will, at its option, repair or replace any product that proves to be

defective in material or workmanship. If your product is no longer

being manufactured, or is out of stock, at its option, Altec Lansing may

replace your product with a similar or better Altec Lansing product.

How To Get Warranty Service: To get a covered product repaired or

replaced, you must contact Altec Lansing during the warranty period

by email (csupport@alteclansing.com). You must include in your email,

your name, address, email address, telephone number, date of

purchase and a complete description of the problem you are

experiencing. In the United States, you may alternatively contact Altec

Lansing by telephone at 1-800-ALTEC88 — please be prepared to

provide the same information. If the problem appears to be related to

a defect in material or workmanship, Altec Lansing will provide you a

return authorization and instructions for return shipment. Return

shipments shall be at the customer’s expense, and the return must be

accompanied by the original pr

oof of purchase. You should insure the

shipment as appropriate because you are responsible for the product

until it arrives at Altec Lansing.

How Will State Law Affect Your Rights?: This warranty gives you

c legal rights, and you may also have other rights which var

from state to state. Please note that in the European Union, you as a

consumer might have other legal rights under national legislation of

opean Union Member States gover

ning the sale of Altec Lansing’

goods. Those rights are not affected by this guarantee.

The above limited war

ranties and remedies are sole warranties and

emedies available to pur

chaser, if, and to the extent, valid and

enforceable under the applicable law.

The answers to most setup and performance questions can be found

in the Troubleshooting guide. You can also consult the FAQs in the

customer support section of our Web site at

www.alteclansing.com. If

you live in North America and still can’t find the information you need,

please call our customer service team for assistance before returning

the speakers to your retailer under their return policy.

Email: csupport@alteclansing.com

If you live outside of North America, please visit our website at

www.alteclansing.com and select your region to locate your country’s

For the most up-to-date information, be sure to check our Web site at

www.alteclansing.com.

International customers: For information regarding the distribution

of Altec Lansing products in your country, please visit

www.alteclansing.com and click on your region.6

(F) Bouton MUTE (sour

(F) Bouton MUTE (sour

his Class B digital appar

atus complies with Canadian ICES-003.

• Cet appareillage digital de Classe B est conforme au ICES-003 canadien.

Tsim Sha Tsui, Kowloon, Hong Kong

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