JVC RX-D412B 用户手册
Troubleshooting
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.
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.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Power
The power does not come on.
The power cord is not plugged in.
Plug the power cord into an AC outlet.
The receiver turns off (enters
standby mode).
standby mode).
Speakers are overloaded because of high
volume.
volume.
1. Stop the playback source.
2. Turn on the receiver again, then turn
2. Turn on the receiver again, then turn
the volume down.
Speakers are overloaded because of a
short circuit at the speaker terminals.
short circuit at the speaker terminals.
Check the speaker wiring. If the speaker
wiring is not short-circuited, contact your
dealer.
wiring is not short-circuited, contact your
dealer.
The receiver is overloaded because of
high voltage.
high voltage.
Consult your dealer after unplugging the
power cord.
power cord.
“OVER HEAT” flashes on the
display, then the receiver turns
off.
display, then the receiver turns
off.
The receiver is overloaded because of
high volume or long time usage.
high volume or long time usage.
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.
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.
Sound and picture
No sound from speakers.
Speaker signal cables are not connected.
Check the speaker wiring, then reconnect
if necessary (see page 8) after unplugging
the power cord.
if necessary (see page 8) after unplugging
the power cord.
Connections are incorrect.
Check the audio connections (see pages
9 to 15) after unplugging the power cord.
9 to 15) after unplugging the power cord.
An incorrect source is selected.
Select the correct source.
Muting is activated.
Press MUTING to cancel the mute (see
page 22).
page 22).
An incorrect input mode (analog or
digital) is selected.
digital) is selected.
Select the correct input mode (analog or
digital).
digital).
Sound from one speaker only.
Speaker signal cables are not connected
properly.
properly.
Check the speaker wiring and reconnect
if necessary (see page 8) after unplugging
the power cord.
if necessary (see page 8) after unplugging
the power cord.
Sounds are intermittently
distorted by the outside noise
such as a lightning discharge.
distorted by the outside noise
such as a lightning discharge.
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.
connection, the sounds may be
intermittently distorted by the outside
noise such as a lightning discharge but
the sound will be restored automatically.
This is not a malfunction.
No picture on the TV screen.
Either the video input setting or video
output setting is incorrect.
output setting is incorrect.
Select the correct settings (see page 21
or 34).
or 34).
HDMI signals do not come on.
A video or audio format incompatible
with this receiver and/or TV is played.
with this receiver and/or TV is played.
Check the video or audio format of the
signal to see if it is compatible with this
receiver and/or TV.
signal to see if it is compatible with this
receiver and/or TV.
An HDCP-compatible TV is not
connected.
connected.
Connect an HDCP-compatible TV.
The receiver failed to recognize HDMI-
connected components.
connected components.
Disconnect the HDMI cable and connect
it again after unplugging the power cord.
it again after unplugging the power cord.
An HDMI cable longer than 5 m (15 ft) is
used.
used.
Use an HDMI cable shorter than 5 m (15
ft) to assure stable operation and picture
quality.
ft) to assure stable operation and picture
quality.
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