Troubleshooting; There Is No Sound; There Is No Microphone Sound; There Is Severe Hum Or Noise - Sony MHC-GN770 Operating Instructions Manual

Should you encounter aproblem with your
system, dothe Jtbllowing:
1 Make sure the power cord and speaker
cords are connected correctly and firmly.
2 Find your problem in the troubleshooting
checklist below and take the indicated
corrective action.
If the problem persists after doing all oi"the
above, consult your nearest Sony dealer.
When the I/(_ indicator flashes
hmnediately unplug the power cord and
check the following items
• Are the system control cables connected
correctly'?
• Are the + and speaker cords short
circuited?
• Is the voltage selector set to the correct
voltage?
Check the voltage for your region, then
make sure the voltage selector is set
correctly
• Are you using the supplied speakers?
• Is anything blocking the ventilation holes
on the rear of the systenf?
After checking the above items and fixing
any problems, plug in the power cord again
and turn on the system. If the I/(_) indicator
still flashes, or if the cause of the problem
cannot be Jtbund even after checking all the
above items, consult your nearest Sony
dealer.
General
The display starts flashing as soon as you
plug in the power cord even though you have
not turned on the system (see step 6 of
"Hooking up the system" (page 8)).
• Pless DISPLAY
twice while the system is off
The demonstration disappears
"- -:- -" appears in the display.
• A powe! 1:allure occmTed Set the clock (page 11)
and timel settings (pages 27 and 28) again
The clock setting/radio presetting/timer is
canceled.
• Redo the lbllowing:
"Setting the clock" (page 11)
"Presetting radio stations" (page 16)
"Falling asleep to music" and "Waking up to
music" (page 27)
"Timel recording radio programs" (page 28)
There is no sound.
• Turn VOLL'ME clockwise (or press
VOLUME + on the remote)
• Make sure the hea@hones are nm connected to
the PHONES jack
• Check the speaker connections (page 9)
• Thee is no audio output during Timer Recording
There is no microphone sound.
• Turn VOLL_IE (or press VOLLTME +,
lepeatedly on the remote) or MIC LEVEL to
adjust tile microphone volmne.
• Make sure the microphone is connected to the
MIC jack correctly
There is severe hum or noise.
• Move tile system away fiom the source of noise
• Connect the system to a diffelent wall outlet
• Install a noise filter (commercially available) to
the power cord
The timer cannot he set.
• Set the clock again (page 11)
The timer does not function.
• Check the timer setting and set the CO1Tecttime
(pages 27 and 28)
• Cancel the Sleep Timel flmction (page 27)
• You cannot select the Play Timer and Timer
Recording sinmltaneously
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