Troubleshooting - JVC RX-D412B Instructions Manual

Troubleshooting

PROBLEM
The power does not come on.
The receiver turns off (enters
standby mode).
"OVER HEAT" flashes on the
display, then the receiver turns
off.
No sound from speakers.
Sound from one speaker only.
Sounds are intermittently
distorted by the outside noise
such as a lightning discharge.
No picture on the TV screen.
HDMI signals do not come on.
52
Use this chart to help you solve daily operational problems.
If there are any problems you cannot solve, contact your JVC
service center.
For Precise Surround Setup and XM Satellite Radio
operations, see the separated troubleshooting on pages
19 and 28.
POSSIBLE CAUSE
The power cord is not plugged in.
Speakers are overloaded because of high
volume.
Speakers are overloaded because of a
short circuit at the speaker terminals.
The receiver is overloaded because of
high voltage.
The receiver is overloaded because of
high volume or long time usage.
Speaker signal cables are not connected.
Connections are incorrect.
An incorrect source is selected.
Muting is activated.
An incorrect input mode (analog or
digital) is selected.
Speaker signal cables are not connected
properly.
When you use the digital coaxial
connection, the sounds may be
intermittently distorted by the outside
noise such as a lightning discharge but
the sound will be restored automatically.
Either the video input setting or video
output setting is incorrect.
A video or audio format incompatible
with this receiver and/or TV is played.
An HDCP-compatible TV is not
connected.
The receiver failed to recognize HDMI-
connected components.
An HDMI cable longer than 5 m (15 ft) is
used.
SOLUTION
Plug the power cord into an AC outlet.
1. Stop the playback source.
2. Turn on the receiver again, then turn
the volume down.
Check the speaker wiring. If the speaker
wiring is not short-circuited, contact your
dealer.
Consult your dealer after unplugging the
power cord.
Turn the volume down or turn off the
receiver for a while and turn it on again.
If the receiver turns off soon after doing
solutions above, consult your dealer after
unplugging the power cord.
Check the speaker wiring, then reconnect
if necessary (see page 8) after unplugging
the power cord.
Check the audio connections (see pages
9 to 15) after unplugging the power cord.
Select the correct source.
Press MUTING to cancel the mute (see
page 22).
Select the correct input mode (analog or
digital).
Check the speaker wiring and reconnect
if necessary (see page 8) after unplugging
the power cord.
This is not a malfunction.
Select the correct settings (see page 21
or 34).
Check the video or audio format of the
signal to see if it is compatible with this
receiver and/or TV.
Connect an HDCP-compatible TV.
Disconnect the HDMI cable and connect
it again after unplugging the power cord.
Use an HDMI cable shorter than 5 m (15
ft) to assure stable operation and picture
quality.