JVC RX-F31S Instruction Manual

Troubleshooting

Troubleshooting

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English
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.
Bass sound is reinforced too much
when listening in stereo.
Sounds are intermittently distorted or
the noise is heard by the outside noise
such as a lightning discharge.
No picture is displayed on the monitor.
Remote control does not operate as
you intend.
Remote control does not work.
Buttons cannot be used.
Continuous hiss or buzzing during FM
reception.
Occasional cracking noise during FM
reception.
Use this chart to help you solve daily operational problems. If
there are any problems you cannot solve, contact your JVC’s
service center.
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 a
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.
TV Direct is activated.
Speaker signal cables are not connected
properly.
Appropriate bass level is not selected.
The sounds may be intermittently distorted
or the noise may be heard by the outside
noise such as a lightning discharge but the
sound will be restored automatically.
Connections are incorrect.
Input mode is incorrect.
The remote control is not ready for your
intended operation.
There is an obstruction hiding the remote
sensor on the receiver.
Batteries are weak.
The mode selector is set to the incorrect
position.
TV Direct is activated.
Incoming signal is too weak.
The station is too far away.
The wrong antenna is being used.
Antennas are not connected properly.
Ignition noise from automobiles.
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 speaker wiring
is not short-circuited, contact your dealer.
Consult your dealer after unplugging the
power cord.
Turn on the receiver again. If the receiver
turns off soon, consult your dealer after
unplugging the power cord.
Check speaker wiring, then reconnect if
necessary (see page 6) after unplugging
the power cord.
Check the audio connections (see pages 7
to 11) after unplugging the power cord.
Select the correct source.
Press MUTING to cancel the mute (see
page 15).
Select the correct input mode (analog or
digital).
Deactivate TV Direct (see page 14).
Check speaker wiring and reconnect if
necessary (see page 6) after unplugging
the power cord.
Adjust audio position level (see page 14).
This is not a malfunction. But if this
continues, turn on the receiver again.
Check the video connections (see pages 7
to 10) after unplugging the power code.
Check the component video input mode
(see page 25).
Set the mode selector correctly, then press
the corresponding source selecting button
or SOUND before operation
Remove the obstruction.
Replace batteries.
Set the mode selector to the proper
position.
Deactivate TV Direct (see page 14).
Connect an outdoor FM antenna or contact
your dealer.
Select another station.
Check with your dealer to be sure you have
the correct antenna.
Check the connections.
Move the antenna farther from automobile
traffic.
Po
wer
Sound and picture
Remote contr
ol
T
uner
EN47-48RXF31S[US]ff.p65
05.6.10, 12:13
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