JVC RX-7520VBK - Manual (Page 43)

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English
Troubleshooting
Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC’s service center.
SOLUTION
Plug the power cord into an AC outlet.
Check speaker wiring and reconnect if
necessary.
Press SPEAKERS ON/OFF 1 and 2 buttons
correctly.
Select the correct source.
Press MUTING to cancel the mute.
Select the correct input mode (analog or
digital).
Check connections.
For analog connections, see pages 6 – 8.
For digital connections, see page 9.
Check speaker wiring and reconnect if
necessary.
Adjust the balance properly (see page 19).
Connect an outdoor FM antenna or contact
your dealer.
Select a new station.
Check with your dealer to be sure you have
the correct antenna.
Check connections.
Move the antenna farther from automobile
traffic.
Move speakers away from the turntable.
Connect the cable to the AM ( H) terminal on
the rear panel.
1. Press STANDBY/ON on the front
panel to turn off the receiver.
2. Stop the playback source.
3. Turn on the receiver again, and adjust the
volume.
Press STANDBY/ON on the front panel,
then check the speaker wiring.
If “OVERLOAD” does not disappear, unplug
the AC power cord, then plug it back again.
If speaker wiring is not short-circuited, contact
your dealer.
Press STANDBY/ON on the front panel to
turn off the receiver. After unplugging the
power cord, consult your dealer.
Press STANDBY/ON on the front panel to
turn off the receiver. After unplugging the
power cord, consult your dealer.
Remove the obstruction.
Replace batteries.
Press SOUND or source selecting buttons
first, then press the button you want to use.
(See pages 20, 27, 28, 34 – 39).
POSSIBLE CAUSE
The power cord is not plugged in.
Speaker signal cables are not connected.
The SPEAKERS ON/OFF 1 and 2 buttons
are not set correctly.
An incorrect source is selected.
Muting is activated.
An incorrect input mode (analog or
digital) is selected.
Connections are incorrect.
Speaker signal cables are not connected
properly.
The balance is set to one extreme.
Incoming signal is too weak.
The station is too far away.
An incorrect antenna is used.
Antennas are not connected properly.
Ignition noise from automobiles.
Your turntable is too close to speakers.
An earth ( H) cable is not connected to the
AM ( H) terminal on the rear panel.
Speakers are overloaded because of high
volume.
Speakers are overloaded because of short
circuit of speaker terminals.
The built-in microcomputer is not
functioning correctly.
The receiver is overloaded because of a
high voltage.
There is an obstruction in front of the
remote sensor on the receiver.
Batteries are weak.
The remote control is not ready for your
intended operation.
PROBLEM
The power does not come on.
No sound from speakers.
Sound from one speaker only.
Continuous hiss or buzzing during FM
reception.
Occasional cracking noise during FM
reception.
Howling during record playing
Noise is heard.
“OVERLOAD” starts flashing on the
display.
“DSP MICOM NG” starts flashing on the
display.
The STANDBY lamp lights up after
turning on the power, but soon the
receiver turns off (into standby mode).
Remote control does not work.
Remote control does not operate as you
intend.
EN30-42.RX-7520V[C]f.pm5 02.2.14, 4:33 PM 40