Sony MHC-GNZ77D 사용자 설명서

Should you encounter a problem with your 
system, do the following:

Make sure the power cord and speaker 
cords are connected correctly and firmly.

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.

• The demonstration mode started. Press ?/1 (see 

step 5 of “Hooking up the system” on page 16).

• The power cord is disconnected or a power failure 

occured. Redo “Setting the clock” (page 18). If 
you have set the timer, redo “Waking up to music” 
(page 74) and “Timer recording radio programs” 
(page 75).

• The power cord is disconnected or a power failure 

occured for longer than half a day. Redo 
“Presetting radio stations” (page 57).

• A power failure has occurred. Set the clock 

(page 18) and timer settings (page 74 and 75) 
again.

• Press VOLUME + repeatedly (or turn MASTER 

VOLUME on the unit clockwise).

• The headphones are connected to the PHONES 

jack.

• Check the speaker connections (page 15).

• There is no audio output during Timer Recording.

• The system is in pause mode, in Slow-motion Play 

or in Lock Search. Press H (or nN on the 
unit) to start the playback.

• Press VOLUME + repeatedly (or turn MASTER 

VOLUME on the unit clockwise) or turn 
MIC LEVEL (MHC-GNZ55D only), MIC 1 
LEVEL, or MIC 2 LEVEL on the unit clockwise 
to increase the microphone volume.

• Make sure the microphone is connected to the 

MIC (MHC-GNZ55D only), MIC 1, or MIC 2 
jack correctly.

• A TV or VCR is placed too close to the unit. Move 

the unit away from the TV or VCR.

• Move the unit away from the source of noise.

• Connect the unit to a different wall outlet.

• Install a noise filter (commercially available) to 

the power cord.

• Check the timer setting and set the correct time 

(page 74 and 75).

• Cancel the Sleep Timer function (page 74).

• You cannot select the Play Timer and the Timer 

Recording at the same time.

• Remove the obstacles between the remote and the 

unit.

• Move the remote closer to the unit.

• Point the remote at the unit’s sensor.

• Replace the batteries (R6/size AA).

• Locate the unit away from the fluorescent light.

When the ?/1 indicator flashes

Immediately unplug the power cord and 
check the following items.
• If your unit have a voltage selector, 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 the + and – speaker cords short-

circuited?

• Are you using the supplied speakers?
• Is anything blocking the ventilation holes 

on the rear of the unit?

After checking the above items and fixing 
any problems, plug in the power cord again 
and turn on the unit. If the ?/1

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.