Advent AW720 Installation And Operating Instructions Manual page 4

Adjustable
Headband (A)
/
' "
~@
~
Charge
,·~~l
Switch (C) Charge
Input
Volume Control Jack (E)
Wheel (D)
Tuning
Contro/~
Wheel (H)
MORE HELPFUL INFORMATION
About Fixed-Level 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 (stereo, etc.) volume control.
Hint: Fixed-level audio outputs from stereo receivers/amps will typically be desig-
nated as Tape, Tape 1, and Tape 2 outputs, OAT (digital audio tape) outputs, VCR
audio output connections, and auxiliary audio outputs. Tape, Tape 1, Tape 2 and
OAT outputs are usually marked as ITAPE OUTPUT;' ITAPE OUT;' ITAPE REC,' or
TAPE RECORD.' Jacks designated for phono, CD, LD, DVD or tape playback (PB) are
inputs and will not work for purposes of installing 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 Outputs," on Page 8).
Outputs from VCRs are almost always fixed.
Hint: When connecting to the fixed audio outputs of a VCR, remember that for the
wireless system to work, the VCR must be active. In other words, turn the TV on to
the channel you would normally use to watch a videotape (channel 3 or 4), turn the
VCR on, then press the TVNCR button on your VCR remote control one time to
make the VCR the controlling piece of equipment. At this point whatever channel is
showing on the tuner for the VCR should be the channel playing on the TlI. Change
channels on the VCR. This configuration gives independent volume control through
the TV (using the TV remote control) and at the headphones. This allows others in
the room to listen to TV at volume levels they find comfortable, and you to listen
through the headphones at volume levels you find acceptable.
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TUNE THE HEADPHONES
Adjust the headphones as follows:
1. Disconnect the Charge Cable (S) from the
headphone Charge Input Jack (E) if connected.
2. Use the headphone Power ON/OFF
Switch (C) to turn the headset "ON."
3. Turn the Tuning Control Wheel (H) until the
Tuning Indicator Light (G) illuminates red,
indicating the headset is tuned to the
signal from the transmitter.
4. Adjust Headband (A) for comfort.
5. Adjust Volume (D) as desired.
Note: After fine tuning, interference in the form ofstatic and/or distortion can some-
times be heard. If this occurs, confirm the transmitter/headphone adjustments and indi-
cators. If the problem persists, refer to the TROUBLESHOOTING section of this manual.
Over time, with repeated use, Ni-Cd 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 replace the batteries.
Note: Battery life depends on frequency of use, time, and care (fully discharging
the batteries regularly, as described above.)
If you have questions regarding battery replacement, please contact our Customer
Service Depa rtment at 1-800-732-6866.
Using Optional Alkaline Batteries
The AW720 headphones can also be powered by 2AM alkaline batteries. You may
experience slightly longer play time with alkaline batteries but you will not be able
to recharge them, as you can with Ni-Cds.
ADJUST THE TRANSMITTER
Adjust the transmitter as follows:
Step 1 Turn ON your Audio Source
(i.e. Stereo Receiver, TV, etc.) so that you
can hear sound coming from the source.
Step 2 Pivot the Antenna (0) to the upright vertical position.
Step 3 Set the Transmitter "Level"
1. Set the Frequency Control Wheel (N) to its midpoint
2. Turn the Output Level Control Wheel (L) all the
way to the left (your left when looking at the
transmitter controls), as shown.
3. Check status of Audio Level Indicator Light (I). If it
flickers intermittently (about half the time),
proceed to TUNE THE HEADPHONES.
4. If Audio Level Indicator Ught is on solid red or flickering
very rapidly, turn Output Level Control Wheel slowly
g~~~~/::~el
(L) Frequency
back to the right until light flickers intermittently.
(Turn to Left) Control Wheel (N)
Note: If the light does not flicker, confirm secure connection of the AC Adapter. If
the light still does not flicker, confirm secure connection to the audio source output.
If there is still no response, leave the Output Level Control Wheel completely to the
left (as shown) and see the following Note.
Note: If the transmitter is connected to a variable output (i.e. headphone jack, TV
audio out) on the audio source, leave the Output Level Control Wheel turned all the
way to the left (as shown) and adjust the volume on the audio source up or down
as necessary to make the Audio Level Indicator Light flicker intermittently. If you
are unclear as to the kind of output (variable or fixed) you are using, please see
MORE HELPFUL INFORMATION on the following page.
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