Recoton Advent Headphones AW770 User Guide

Wireless  
WIRELES S S TEREO HEADP HONES  
INSTALLATION AND  
OPERATING INSTRUCTIONS  
AW770  
 
A. Self-Adjusting Headband  
B. Battery Compartment Cover  
C. Power Indicator Light  
D. Charge Input Jack  
A
E. Power ON/OFF Button  
F. Volume Control Wheel  
G. Tuning Control Wheel  
H. Tuning Indicator Light  
I. Audio Level Indicator Light  
J. Charge Output Jack  
K. Transmitter Power Input Jack  
L. Output Level Control Wheel  
M. Audio Input Cable  
L
R
POWER  
STEREO  
F
C
G
B
D E  
H
O
N
I
DC 1 2 V  
EQ.  
ADJUST  
CHARGE  
LEVEL  
N. Frequency Control Wheel  
O. Antenna  
J
L
M
K
P
P. AC Adapter  
Q
Q. YCable Adapter  
R
S
R. Headphone Adapter Plug  
S. Charge Cable  
U
L
 
3
Transmitter Power  
Input Jack (K)  
CONNECT THE TRANSMITTER  
Connect the transmitter as follows:  
DC  
1
2
V
FREQ  
.
CHARG  
E
LEVEL  
ADJUST  
Step 1 Power the Transmitter  
1. Insert the power cord from AC Adapter (P)  
into the Transmitter Power Input Jack (K).  
2. Plug the AC Adapter (P) into any standard  
wall outlet.  
D
C
L
I
R
A
E
S
S
C
T
2
PL  
T
R
U
A
G
N
SF  
-I  
N
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R
M
E
R
1
\P:  
1
2
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V
A
V
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6
0
H
5
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A
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5
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D
/P  
U 1  
2
D
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1
L
92  
N
5
L
I
ST  
E
D
L
R
98  
55  
3
M
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O
1
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8
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:
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-1  
2
-1  
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1
A
17  
2
9
3
1
0
D
M
A
D
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I
N
C
H
IN  
A
AC Adapter (P)  
Note: There is no transmitter ON/OFF switch. The transmitter is designed to be left  
plugged in and powered at all times. If you will not be using the AW770 for an extended  
period of time, you may wish to unplug the AC Adapter.  
Step 2 Connect to an Audio Source  
OPTION 1 CONNECTING TO A STEREO RECEIVER  
1. Connect the mini plug on the end of the Audio Input  
Cable (M) to the mini jack on the YCable Adapter (Q).  
2. Connect the dual RCA plugs on the other end  
of the YCable Adapter (Q) to the RCA-type  
audio outputs of a stereo receiver/amp or  
other audio source.  
Ste re o Re c e ive r  
Tra nsm itte r  
Tape  
Mon  
Tape  
Spkr  
A
Phono  
CD  
Aux  
1
Mon  
2
Antenna  
Fuse  
IN  
OUT  
DC  
1
2
V
Spkr  
B
FRE  
ADJUST  
Q
.
CHARG  
E
LEVEL  
L
R
L
R
L
R
300  
75  
L
L
R
L
R
Aud io  
Outp ut Ja c k  
OPTION 2 CONNECTING TO A TELEVISION  
1. Connect the mini plug on the end of the  
Audio Input Cable (M) to the mini jack on  
the YCable Adapter (Q).  
Audio  
Input Cable (M)  
Y Adapter Cable (Q)  
TV  
2. Connect the dual RCA plugs on the other end of  
the YCable Adapter (Q) to the RCA-type audio  
outputs of a TV.  
Tra nsm itte r  
Video  
L
1
Video  
L
2
Stereo  
DC  
1
2
V
Antenna  
IN  
OUT  
FRE  
ADJUST  
Q
.
CHARG  
E
LEVEL  
R
R
L
R
OPTION 3 CONNECTING TO A HEADPHONE JACK  
1. Plug the mini plug on the end of the Audio Input  
Cable (M) into the headphone jack. As needed  
use the Headphone Adapter Plug (R) to convert  
the (3.5mm) mini plug to a full-size 1/4" headphone plug.  
Aud io  
Outp ut Ja c k  
Audio  
Input Cable (M) Y Adapter Cable (Q)  
WARNING: DO NOT connect the RCA plugs of  
the YCable Adapter to a speaker output on  
Ste re o Re c e ive r  
Tra nsm itte r  
DC  
1
2
V
FRE  
ADJUST  
Q
.
CHARG  
E
LEVEL  
the audio source. If you use the speaker output  
of an audio source to connect the transmitter,  
you will permanently damage the transmitter. It  
is designed to work with RCA-type line/variable  
outputs or headphone outputs only.  
ON OFF  
Headphone  
He a d p hone  
Outp ut Ja c k  
Audio  
Input Cable (M)  
Headphone  
Adapter Plug (R)  
Note: For more information on hooking up and using the transmitter with various  
ouputs, please see MORE HELPFUL INFORMATION beginning on Page 7.  
 
4
Battery  
Compartment  
Cover (B)  
POWER THE HEADPHONES  
The AW770 headphones are powered by 3 AAA  
Nickel Cadmium (Ni-Cd) batteries.  
Insert the Batteries  
L
R
1. Make sure the headphone Power ON/OFF  
Button (E) is OFFor in the outposition.  
2. Remove Battery Compartment Cover (B) by  
pushing down and out at the same time on the  
notch at the top of the cover.  
3. Insert batteries following polarity (+and “–”)  
as diagrammed inside battery compartment.  
POWER  
STEREO  
Power On/Off  
Button (E)  
Charge Cable (S)  
L
R
DC  
1
2
V
U
FREQ  
ADJUST  
.
L
CHARGE  
LEVEL  
POWER  
STEREO  
Charge Output  
Jack (J)  
Charge Input  
Jack (D)  
Charging Ni-Cd Batteries  
1. Make sure headphone Power ON/OFF Button (E) is OFF. Connect one  
end of Charge Cable (S) to Charge Input Jack (D) on the headphone.  
2. Connect the other end of Charge Cable (S) to Charge Output Jack (J)  
on back of transmitter.  
CHARGE SCHEDULE  
Use  
Charge Time  
Play Time  
Initial charge  
Average  
Extended  
24 hours  
10-12 hours  
16-18 hours  
5-6 hours  
3-4 hours  
5-6 hours  
Play time as shown above reflects use of batteries in good condition.  
Note: The charger will not overcharge the batteries if left on charge longer than  
shown above. If you will not use the headphones for an extended period of time,  
it is recommended you unplug the charger cable.  
 
5
For maximum battery life, it is recommended that you fully discharge the batteries about  
once every 30 days, followed by an Extended Use charge. To discharge the batteries,  
simply leave the headphones turned ONuntil the Power Indicator Light goes out.  
About Batteries  
WARNING: The AW770 built-in charger will charge Ni-Cd batteries only. DO NOT  
attempt to recharge alkaline or rechargeable alkaline batteries as this will damage  
the headphones and/or transmitter.  
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 Department at 1-800-732-6866.  
Using Optional Alkaline Batteries  
The AW770 headphones can also be powered by 3 AAA 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 (O) to the upright, vertical position.  
Step 3 Set the Transmitter Level”  
Audio Level  
1. Set the Frequency Control Wheel (N) to its midpoint.  
Indicator Light (I)  
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  
Antenna (O)  
to TUNE THE HEADPHONES.  
4. If Audio Level Indicator Light is on solid red or  
flickering very rapidly, turn Output Level Control  
Wheel slowly back to the right until light flickers  
intermittently.  
Output Level  
Frequency  
Control Wheel (L)  
Control Wheel (N)  
(Turn to Left)  
 
6
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 below.  
TUNE THE HEADPHONES  
Adjust the headphones as follows:  
1. Disconnect the Charge Cable (S) from the  
Power  
On/Off  
Volume  
Button (E)  
R
L
Control  
headphone Charge Input Jack (D) if connected.  
2. Use the headphone Power ON/OFF  
Button (E) to turn the headset ON”  
(button pushed to the inposition).  
3. Turn the Tuning Control Wheel (G) until  
the Tuning Indicator Light (H) illuminates  
red, indicating the headset is tuned  
to the signal from the transmitter.  
Wheel (F)  
Tuning  
Control  
Wheel (G)  
STEREO  
POWER  
Charge Input  
Jack (D)  
Tuning Indicator  
Light (H)  
Charge  
Cable (S)  
4. Adjust Volume (F) as desired.  
Note: After fine tuning, interference in the form of static 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.  
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, DAT (digital audio tape) outputs, VCR  
audio output connections, and auxiliary audio outputs. Tape, Tape 1, Tape 2 and  
DAT outputs are usually marked as TAPE OUTPUT,TAPE OUT,TAPE 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.  
 
7
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 TV/VCR 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 TV. 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.  
Hint: If your VCR (or other RCA-type audio source you are connecting to) is mono (a  
single audio output), you need to acquire another RCA YCable. It differs from the  
YCable Adapter included in this kit. It will have a single male RCA plug and 2  
female RCA jacks. Connect the dual RCA cables from the transmitter to the 2 female  
RCA jacks on the Ycable, then connect the single male RCA plug of the Ycable to  
the single audio output of the VCR.  
About Variable-Level Outputs  
A variable-level output, such as a headphone jack or certain RCA-type outputs, pro-  
vides an audio signal to the transmitter that changes in relation to volume adjust-  
ments on the audio source. As the volume of the audio source goes up and down, so  
too does the audio signal strength sent to the transmitter. This can affect the quality  
of sound you hear at the headphones, and may require increasing or decreasing the  
volume level of the audio source to achieve a suitably strong audio signal for use  
with the AW770 system. For more information on how to use the AW770 with vari-  
able outputs, see the following section, About Using the Headphones with a TV.  
Hint: On most bookshelf-type or compact stereo systems, inserting a headphone plug  
into the headphone jack results in automatic cutoff of the stereo system speakers.  
Hint: Most TVs, regardless of age or price, have variable outputs. If you are unsure  
which, if any of your outputs is fixed, refer to the TV instruction manual. Some TVs  
have outputs that can switch between variable and fixed. Refer to the TV instruc-  
tion manual. When given a choice, fixed is always recommended.  
About Using the Headphones with a TV  
Wireless headphones are frequently used so that one person with hearing difficulty  
can listen to TV at a sufficiently high volume level while others in the room listen to  
the TV at normal volume levels.  
Hint: If you want to use the headphones to listen to TV independent of the volume  
from the TV, and your TV has variable outputs, it is recommended you connect the  
transmitter to the VCR, as described in the second HINT under About Fixed-Level  
Outputs.This configuration gives you a fixed-level output for independent volume  
control at the headphones, while others in the room can turn the TV volume up and  
down (even all the way down) without interfering with what you hear.  
 
8
In another variation, there are those who wish to listen to TV in such a way that no  
sound comes from the TV speakers.  
Hint: If you wish to use the headphones in such a way that you are the only person  
who can hear the audio from the TV (e.g. use them in bed while another person in the  
room is sleeping), connect as described in the above Hint. However, if there is no VCR  
to connect to, use the following configuration: Connect to the variable audio outputs  
of the TV, then turn the TVs internal speakers OFF. Most - but not all - TVs will have  
this capability, and will be accomplished either through the on-screen menu for the  
TV or using an external switch (see your TV owners manual). Once the speakers  
are off, turn the TV volume up high enough to make the Audio Level Indicator Light  
flicker intermittently. To return the TV to normal use, simply adjust the volume back  
to a normal level and turn the speakers back on.  
TROUBLESHOOTING  
The following troubleshooting guide takes you through some of the more common  
problems and corrections associated with the installation and/or operation of a  
wireless system. If the problem persists, please call 1-800-732-6866 and a knowl-  
edgeable Customer Service Representative will assist you.  
Trouble  
Checks and Adjustments  
No Sound  
Check that the AC Adapter is fully inserted into the wall outlet and  
the power cord from the AC Adapter is firmly connected to the  
Transmitter Power Input Jack.  
Check that the headphones are turned ONand the red Power  
Indicator Light is brightly lit.  
Check that the batteries are firmly seated following polarity as  
shown in the battery compartment.  
Check that the audio source (stereo, TV, etc.) is turned on and  
providing sound as it normally should.  
Check that the headphone volume is turned up.  
If you are 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  
theTape 2 outputs, which may not be active.  
No Sound/  
Distortion/  
Static  
Check that the headphone Tuning Indicator Light is illuminated red.  
If not, adjust theTuning Control Wheel until the light illuminates red.  
 
9
Trouble  
Checks and Adjustments  
No Sound/  
Distortion/  
Static  
Check the batteries they may be weakening.  
Confirm the batteries are good.When batteries begin to  
weaken, there can be static breakup. If necessary,  
replace/recharge the batteries.  
Check that the antenna is in the upright position  
Check that the Transmitter Audio Level Indicator Light is flickering  
intermittently. If you are using a fixed output and the light is on  
solid or flickering very rapidly, or if the light is not on at all, adjust the  
Output Level Control Wheel so that the light flickers intermittently.  
or  
If you are using a variable output, make sure the Output Level  
Control Wheel is all the way left (as shown under ADJUST 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 Transmitter Frequency Control Wheel to  
change the operating frequency. Then readjust the headphone  
Tuning Control Wheel until the Tuning Indicator Light illuminates red.  
Try changing the physical location of the transmitter. Locate it as  
high and free of obstruction as possible. Avoid placing directly  
on top of a TV, if possible.  
Try changing the antenna position, particularly if you think you  
may be near maximum transmitting range.  
Try moving 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.  
Sound from  
One Earpiece  
Only  
Check the left/right balance control on the audio source  
Try fine tuning the headset using the Tuning Control Wheel.  
Check the batteries - they may be weakening.  
 
10  
SPECIFICATIONS & FEATURES  
Transmitter  
Omnidirectional  
Effective Transmitting Range: Up to 300 feet*  
Adjustable Audio Level Input  
Variable Frequency Adjustment between 912.5 and 914.5 MHz  
Line Audio Input with 3.5mm Stereo Mini Plug plus 1/4"  
and Composite YCable Adapter  
UL-Listed AC Adapter  
Headphones  
Power ON/OFF Button (left headphone)  
Volume Control (right headphone)  
Frequency Fine Tuning (right headphone)  
Frequency Response: 20 Hz - 20 kHz  
Speaker Element: 40mm, Titanium-Impregnated Mylar  
Magnet Type: Neodymium Iron Boron  
Signal-To-Noise Ratio: 60 dB  
Channel Separation: 30 dB  
Distortion: < 1.5%  
*Maximum range; results achieved may vary by environment.  
 
11  
WARRANTY  
ONE YEAR LIMITED WARRANTY  
Recoton Corporation (the Company) warrants to the original retail purchaser of this product that should  
the product or any part thereof be proven defective in material or workmanship within One Year from the  
date of original purchase, such defects will be replaced without charge for parts or labor. This warranty  
does not apply to any incidental or consequential damages.  
To obtain replacement within the terms of this warranty, the product should be delivered, transportation  
prepaid, to the Dealer where purchased or to the Company, along with proof of date of purchase. Call  
1-800-RECOTON to obtain information regarding the procedure for proper return of your product, if your  
Dealer does not honor the warranty. This warranty is valid in the USA and Canada only.  
THIS WARRANTY DOES NOT APPLY TO ANY PRODUCT OR PART THEREOF WHICH HAS BEEN DAM-  
AGED THROUGH ALTERATION, MISHANDLING, MISUSE, NEGLECT OR ACCIDENT. THIS WARRANTY IS  
IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, AND NO PERSON OR REPRESENTA-  
TIVE IS AUTHORIZED TO ASSUME FOR THE COMPANY ANY OTHER LIABILITY IN CONNECTION WITH  
THE SALE OF THIS PRODUCT. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN  
IMPLIED WARRANTY LASTS OR THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR CONSEQUEN-  
TIAL DAMAGE SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU. This warranty  
gives you specific legal rights and you may also have other rights which vary from state to state.  
NON-WARRANTY SERVICE  
If non-warranty service is required, the product may be sent to the Company for repair/replacement,  
transportation prepaid, by calling 1-800-RECOTON for details, complete instructions, and service  
fee charges.  
A Division of Recoton® Corp.  
2950 Lake Emma Road  
Lake Mary, FL 32746  
AD25890  
© 1999 Recoton Corp.  
15771-0-2  
2/99  
MADE IN CHINA  
 

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