JVC RX-778VBK Stereo System User Manual


 
45
Troubleshooting
Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC
service center.
PROBLEM
The display does not light up.
No sound from speakers.
Sound from one speaker only.
Continuous hiss or buzzing during FM
reception.
Occasional cracking noise during FM
reception.
No colors on the on-screen display.
Howling during record playing.
“OVERLOAD” starts flashing on the
display.
Remote control does not work.
SOLUTION
Plug the power cord into an AC outlet.
Check speaker wiring and reconnect if
necessary.
Press SPEAKERS 1 and 2 correctly.
Select the correct source.
Press MUTING to cancel the mute.
Check speaker wiring and reconnect if
necessary.
Adjust the balance properly (see page 12).
Connect an outside 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.
Connect an NTSC TV.
Move speakers away from the turntable.
Rotate the MASTER VOLUME control
counterclockwise three or four times, then
press POWER on the front panel.
If “OVERLOAD” does not disappear, unplug
the AC power cord, then plug it back again.
Press POWER 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.
Set the selector correctly either to “AUDIO/
TV/VCR” or to “CATV/DBS.”
Remove the obstruction.
Replace batteries.
POSSIBLE CAUSE
The power cord is not plugged in.
Speaker signal cables are not connected.
The SPEAKERS 1 and 2 buttons are not
set correctly.
An incorrect source is selected.
Muting is activated.
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.
The color system of the connected TV is
not NTSC.
Your turntable is too close to speakers.
Speakers are overloaded because of high
volume.
Speakers are overloaded because of short
circuit of speaker terminals.
The remote control mode selector is not
set correctly.
There is an obstruction in front of the
remote sensor on the receiver.
Batteries are weak.
EN39Å[47.RX-778V[J]/1 99.3.8, 11:42 AM45