Troubleshooting; Problems And Remedies - Sony MHC-GNZ9D Operating Instructions Manual

Troubleshooting

Problems and remedies

Should you encounter a problem with your
system, do the following:
1
Make sure the power cord and speaker
cords are correctly and firmly connected.
2
Find your problem in the troubleshooting
checklist below and take the indicated
corrective action.
If the problem persists after doing all of the
above, consult your nearest Sony dealer.
When the ?/1 indicator flashes
Immediately unplug the power cord and
check the following items.
• Are the + and – speaker cords short-
circuited?
• Are you using the supplied speakers?
• Is anything blocking the ventilation holes
on the rear of the system?
Check all the above items and fix any
problems found. After ?/1 indicator stops
flashing, reconnect the power cord and turn
on the system. If the indicator still flashes, or
if the cause of the problem cannot be found
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 8 of
"Hooking up the system" (page 8)).
• Press DISPLAY twice while the system is off. The
demonstration disappears.
"– –:– –" appears in the display.
• A power interruption has occurred. Set the clock
(page 14).
72 GB
The clock setting/radio presetting/timer is
canceled.
• Redo the following:
– "Setting the clock" (page 14)
– "Presetting radio stations" (page 50)
– "Falling asleep to music" and "Waking up to
music" (page 61)
– "Timer recording radio programs" (page 62)
There is no sound.
• Press VOLUME + or turn VOLUME control on
the unit clockwise.
• Make sure the headphones are not connected.
• Check the speaker connections (page 9).
• There is no audio output during Rec Timer.
• The system is in pause mode or in slow-motion
play mode. Press H (or nN on the unit) to
return to normal play mode.
• Fast forward or fast reverse is performed. Press
H (or nN on the unit) to return to normal
play mode.
There is severe hum or noise.
• Move the system away from the source of noise.
• Connect the system to a different wall outlet.
• Install a noise filter (commercially available) to
the power cord.
The timer cannot be set.
• Set the clock again (page 14).
The timer does not function.
• Check the timer setting and set the correct time
(pages 61 and 62).
• Cancel the Sleep Timer Function (page 61).
The remote does not function.
• Remove the obstacle.
• Move the remote closer to the system.
• Point the remote at the system's sensor.
• Replace the batteries (R6/size AA).
• Locate the system away from the fluorescent light.
There is acoustic feedback.
• Reduce the volume.
• Move the microphone away from the speakers or
change the direction of the microphone.
The color irregularity on a TV screen persists.
• Turn off the TV set once, then turn it on after 15
to 30 minutes. If the color irregularity still
persists, place the speakers farther away from the
TV set.