24
TROUBLESHOOTING
To determine any problem with your receiver, always check the most obvious possible causes first. If any problem still remains
after your have checked the items below, consult your nearest TECHWOOD dealer.
When listening to the music in stereo,
left/right speakers sounds reversed.
Low hum or buzzer sound.
Sound is only heard from one channel.
Sound cuts off during listening to the
music or no sound even though power
is ON.
No sound.
Low bass response.
Tuner
An unusual hissing noise is heard when
listening to the broadcast in stereo, but
not heard when listening monaurally.
Noise is excessive in both stereo and
monaural broadcasts.
Sound is distorted and/or the volume
level becomes low.
Excessive distortion in the sound of
stereo broadcasts.
Surround Effects
No sound from the rear speakers.
No sound from the center speaker.
Remote Control Unit
Remote control not working.
Speakers are connected wrong.
Power line of a fluorescent light is
installed near this product.
One of the input cords is disconnected.
The BALANCE control is set to one side.
Speaker impedance is less than
prescribed for this unit.
A/B Speaker selectors are turned off.
Speaker polarity (+/–) is reversed.
Line straight button is turned on.
A slight noise may be heard because the
method use for modulation of FM stereo
broadcasts is different than that used
for monaural broadcasts.
Poor location and/or direction of the
antenna.
Transmitting station is too far away.
Broadcast signals are being disturbed.
Speaker system connections are not
correct.
SURROUND mode switch is set to
STEREO.
One or more rear speaker wires is not
making good contact.
SURROUND mode switch is not set to
DOLBY PRO LOGIC or DOLBY 3
STEREO.
Center channel is set on PHANTOM
mode.
The batteries are exhausted.
The remote control unit is too far from
the receiver or out of the effective
range.
After checking, if needed, reconnect.
Place this product as far away as possi-
ble from electric devices with interfer-
ence.
Connect the input cords securely.
Adjust the BALANCE control.
After turning off the power and then
turning it on again, reduce the volume or
change to the correct 8 ohm speakers.
Press the A or B speaker selector as
applicable.
Check all speakers for correct polarity.
Press the line straight button to turn off.
• Try reducing the treble sound by turn-
ing the treble controls.
• Try changing the location, height
and/or direction of the antenna.
• Set the FM mode to monaural by
pressing the STEREO/MONO button.
(Note that the broadcast will then be
heard as monaural sound).
• If an indoor antenna is being used,
change to an outdoor antenna.
• Try using an antenna with more ele-
ments.
Set the switch to the desired surround
mode position.
Check all rear speaker wires for good
connection.
Set the switch to DOLBY PRO LOGIC
or DOLBY 3 STEREO.
Set center channel mode to NORMAL
or WIDE.
Replace with new batteries.
Operate the remote control unit
within the effective range.
Problem
Probable Cause
Remedy
Amplifier
