WHP151 US IB REVC_K.qxd
1. Switch ON the audio source (TV, DVD, CD player, etc.) to which the
recharging cradle/transmitter is connected. If your audio source is a
DVD or CD player, start a disc.
Warning: The recharging cradle/transmitter has an automatic
function that switches it off if it does not receive an audio signal
for approximately four minutes. If the volume on the audio source
is too low, the recharging cradle/transmitter also switches off after
4 minutes. This feature was installed to comply with current
legislation that reduces the amount of radio emissions in the
environment. To ensure that this function is not accidentally
triggered, set the audio source volume at approximately 50 percent
capacity. Consult your component user's manual for details on
how to set the volume for headphones.
2. The recharging cradle/transmitter is now ready to receive an audio
signal. The recharging cradle/transmitter is activated automatically
when receiving an audio signal from the audio source.
3. Check to make sure the audio signal LED indicator light (9) on
the front of the recharging cradle/transmitter is lit, indicating
that the unit is ready and is receiving a signal.
4. Place the headphone ON/OFF switch (2), located on the right
headphone, to the ON position.
5. The recharging cradle/transmitter features Phase Lock Loop (PLL)
for radio frequency transmissions. Select one of these channels,
using the CHANNEL switch (12) on the back of the recharging
cradle/transmitter. The PLL function automatically locks the chosen
channel, providing top-quality audio reception with no sound loss.
6. After selecting a channel, press the AUTO SCAN button (7), located
on the left headphone, to search for best reception.
Note: For best reception, stay approximately 23 feet away from the
recharging cradle/transmitter when pressing the AUTO SCAN
7. Check to make sure the stereo LED indicator light (5) on the left
headphone is lit, indicating a strong signal.
8. Before wearing headphones adjust the volume using the VOLUME
control (6), located on the left headphone, to a comfortable volume
9. When you are through using the headphones, switch them off using
the ON/OFF switch (2), and place the audio source on standby.
When the audio source offers a variable volume output, maximum
performance can be achieved. Variable volume outputs include
headphone jacks, computer speakers and some TV RCA output jacks.
Variable Volume Output. When using an audio source with a variable
output jack, you can reduce any distortion and achieve maximum
performance by following these steps:
1. Set the volume of the audio source component to mid-level.
2. Adjust the headphone VOLUME control (6) until the desired result
3. If the headphone volume is not sufficient, adjust the source volume.
4. If distortion occurs, reduce the volume on the source component.
Fixed Volume Output. When using an audio source with a fixed
volume output, regulating the volume can be achieved through the
headphone VOLUME control (6) only. Examples of fixed volume
outputs are RCA jacks (VCR, Tape, Video or CD outputs).
Refer to this troubleshooting section if you encounter any difficulties in
setting up and using your headphones.
No sound heard
• Check that your audio source, recharging
cradle/transmitter and headphones are
connected, supplied properly and turned on.
• Check to ensure that the rechargeable batteries are
installed in the headset correctly and have been
• Check to ensure the recharging cradle/transmitter
is running and the Audio signal LED indicator
light (9) on the unit is lit.
• Check that the audio source is delivering a sufficient
signal to the recharging cradle/transmitter's left
and right AUDIO inputs (11). Use the VOLUME
control (6) to increase the sound level.
• Press Auto Scan (7) on the left headphone once to
ensure it is tuned to the transmitter.