JVC RX-9010VBK Service Manual page 151

PROBLEM
Continuous hiss or buzzing during FM
reception.
Occasional cracking noise during FM
reception.
Howling during record playing.
No sound from PC connected with a USB
cable.
Noise while reproducing PC sound connected
with a USB cable.
Sound from PC connected with a USB cable
stops intermittently.
No sound effect such as DSP mode and
digital equalization.
"OVERLOAD" starts flashing on the display.
"TURN ON MAIN OR SUB ROOM"
appears on the display.
The STANDBY lamp lights up after turning
on the power, but soon the receiver turns off
again (into standby mode).
Remote control does not work.
Remote control does not work properly.
73
POSSIBLE CAUSE
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 electrical shock is applied to the
receiver, PC, or USB cable.
USB device is not selected on the
computer.
"MUTE" is selected on the PC.
Strong electromagnetic wave is emitted
from such as television.
PC is subjected to excessive load due to
using other applications.
The Line Direct function is turned on.
Speakers are overloaded because of high
volume either in the main room or in the
sub-room.
Speakers are overloaded because of short
circuit of speaker terminals.
The receiver is turned on with the main
room and sub-room sounds deactivated.
The receiver is overloaded because of
applying high voltage.
The MAIN ROOM/SUB ROOM selector
is not set correctly.
The TV/CATV/DBS selector is not set
correctly.
RF communication between the receiver
and the remote control is interrupted
from outside.
Batteries are weak.
An incorrect remote control operation
mode is selected.
SOLUTION
Connect an outdoor FM antenna or contact
your dealer. (See page 5.)
Select a new station.
Check with your dealer to be sure you have
the correct antenna.
Check connections. (See page 5.)
Move the antenna farther from automobile
traffic.
Move speakers away from the turntable.
Turn off and on the receiver once, then restart
the application installed in the PC.
Select "USB Audio Device [1]" for
"Playback" of "Audio" (see page 11).
Refer to the manuals supplied with your PC.
Check if the volume is set at low level. Refer
to the manuals supplied for your PC.
Move your PC away from the device emitting
strong electromagnetic wave.
Close the applications you do not use.
Turn off the Line Direct function.
(See page 22.)
1. Press POWER 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 POWER on the front panel to turn off
the receiver, check the speaker wiring, then
press it again to turn on the receiver again.
If "OVERLOAD" does not disappear despite
speaker wiring is not short-circuited, consult
your dealer.
• Press MAIN ROOM ON/OFF for the main
room operations.
• Press SUB ROOM ON/OFF for the sub-
room operations.
Press POWER on the front panel to turn off
the receiver. After unplugging the AC power
cord, consult your dealer.
Set the selector correctly either to "MAIN
ROOM" or to "SUB ROOM."
Set the selector correctly either to "TV" or to
"CATV/DBS."
Consult your dealer.
Replace batteries. (See page 13.)
Select the correct remote control operation
mode. (See page 65.)