Sony MHC-GNZ777D User Manual

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.
Note that if service personnel changes 
some parts during repair, these parts may 
be retained.

• The demonstration mode started. Press 

"/1 (or "/1 STANDBY on the unit) 
(page 17).

• The power cord is disconnected or a 

power failure occurred. Redo “Setting 
the clock” (page 22). If you have set the 
timer, redo “Setting the timer” 
(page 65).

• The clock is not set. Set the clock 

(page 22).

• A power failure has occurred. Set the 

clock (page 22) and timer settings 
(page 65) 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 17).

• 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 1 LEVEL or 
MIC 2 LEVEL on the unit clockwise to 
adjust the microphone volume.

• Make sure the microphone is connected 

to the MIC 1 or MIC 2 jack correctly.

When the "/1 STANDBY 
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

 STANDBY 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.