Troubleshooting

Problems and remedies

If you run into any problem using this unit, use the following check list.

First, check that the power cord is connected firmly and the speakers are connected correctly and firmly.

Should any problem persist, consult your nearest Sony dealer.

General

The display starts flashing as soon as you plug in the power cord even though you haven’t turned on the power.

The demonstration mode started. Press @/1. (see step 5 on page 7)

The clock/timer setting is canceled.

The power cord is disconnected or a power failure occurs. Redo “Setting the clock” (on page 8). If you have set the timer, redo “Waking up to music” (on page 20) and

“Timer-recording radio programs” (on page 14).

The radio presetting is canceled.

The power cord is disconnected or a power failure occurs for longer than half a day. Redo “Presetting radio stations” (on page 11).

There is no sound.

Turn VOLUME clockwise.

The headphones are connected to the PHONES jack.

Insert only the stripped portion of the speaker cord into the SPEAKER jack. Inserting the vinyl portion of the speaker cord will obstruct the speaker connections.

The protective device on the amplifier has been activated because of short circuit. (“PROTECT” and “PUSH POWER” flash alternately.) Turn off the unit, eliminate the short-circuit problem and turn on the power again.

There is no audio output during Timer- Recording.

There is severe hum or noise.

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

 

The sound from the component connected to the

 

MD (VIDEO) jacks is distorted.

 

• If “VIDEO” appears in the display when you

 

press MD (VIDEO), switch to “MD” function

 

(see “Note: Connecting an MD deck/VCR” on

24GB

page 22).

 

“-- --:-- --” appears in the display.

A power interruption occurred. Set the clock and timer settings again.

The timer does not function.

Set the clock correctly.

You cannot activate the Daily timer and Timer- recording simultaneously.

“DAILY1 SET”, “DAILY2 SET”, and “REC SET” do not appear when you press the CLOCK/ TIMER SET button.

Set the timer correctly.

Set the clock.

The remote does not function.

There is an obstacle between the remote and the system.

The remote is not pointing in the direction of the unit’s sensor.

The batteries have run down. Replace the batteries.

There is acoustic feedback.

Decrease the volume level.

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.

“PROTECT”and “PUSH POWER” appear alternately.

A strong signal is input. Turn off the power, leave the system turned off for a while, then turn on the power again. If “PROTECT” and “PUSH POWER” still appear alternately check the speaker cords.

Speakers

Sound comes from only one channel or unbalanced left and right volume.

Check the speaker connection and speaker placement.

Sound lacks bass.

Check that the speaker’s + and – terminals are connected correctly.

MHC-RG77 4-238-409-11(2)

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Sony MHC-GX8000, MHC-RG77, MHC-RG66T operating instructions Problems and remedies, 24GB, General, Speakers