Philips HC 8520 Instructions For Use Manual page 11

Wrong battery orientation
No power supply to transmitter
Battery power running low
Audio source not connected
Audio source is off
Volume level set too low
Audio output level low
Headphone not tuned to
the transmitter
Interference from other
radio sources
Receiver too far away from
transmitter
Transmitter other than
SBC HC8522 is used
ENGLISH 11
Reposition the batteries according to
the engraved polarity symbol.
Make sure the docking station is
connected to the local mains power
supply through an adapter and follow
step 5 to 7.
Follow steps 5 to 7 to recharge the
system.
Make sure the audio output of your
audio source is connected to the
3.5 mm STEREO INPUT JACK of
your transmitter. Follow step 9 to 12.
Turn on your audio source.
Adjust the volume level of your
audio source or the headphone.
Hearing Safety: Continuous use at a
high volume may permanently damage
your hearing.
In case of audio sources with
adjustable output level, adjust the
output level to a higher and
non-distorted level.
IMPORTANT: In case of certain TVs,
the headphone jack output level can
only be adjusted after accessing the TV
on-screen menu.
Push and hold the AUTO-TUNING
BUTTON for about 1 sec, then the
headphone will automatically search
for the best possible reception.
1) Alter the transmitter's frequency
channel. Select 1 of the 3 options for
best reception.We advise you to
select channel 1 as the first option.
Next adjust the headphone's tuning
channel as described above.
2) Move transmitter or headphone
elsewhere
Move closer for reception
Make use of the SBC HC8522
transmitter provided. Some
transmitters already built into other
equipment may not be compatible
with the SBC HC8525 headphone
because of the advanced
technologies used.