Sony CDX-CA750(X) - Инструкция по эксплуатации - Страница 32

32

01GB02CD-EUA.fm

CDX-CA750X/CA750

3-228-151-21 (1)

masterpage:Left

Troubleshooting

The following checklist will help you remedy 
problems you may encounter with your unit.
Before going through the checklist below, check 
the connection and operating procedures.

General

No sound.

• Rotate the volume control dial clockwise to 

adjust the volume.

• Cancel the ATT function.
• Set the fader control to the centre position for 

a 2-speaker system.

The contents of the memory have been 
erased.

• The RESET button has been pressed.
• Store again into the memory.
• The power cord or battery has been 

disconnected.

• The power connecting cord is not connected 

properly.

No beep sound.

• The beep sound is cancelled (page 26).
• An optional power amplifier is connected 

and you are not using the built-in amplifier.

Indications disappear from/do not appear in 
the display.

• The clock display disappears if you press 

(OFF)

 for 2 seconds.

t

Press 

(OFF)

 again for 2 seconds to 

display the clock.

• Remove the front panel and clean the 

connectors. See “Cleaning the connectors” 
(page 29) for details.

Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the ignition key is in the 
ON, ACC, or OFF position.

The leads are not matched correctly with the 
car’s accessory power connector.

No power is being supplied to the unit.

• Check the connection. If everything is in 

order, check the fuse.

• The car does not have an ACC position.

t

Press 

(SOURCE)

 (or insert a disc) to turn 

on the unit.

The power is continuously supplied to the 
unit.

The car does not have an ACC position.

The power aerial does not extend.

The power aerial does not have a relay box.

CD/MD playback

A disc cannot be loaded.

• Another CD/MD is already loaded.
• The CD/MD is forcibly inserted upside down 

or in the wrong way.

Playback does not begin.

• Defective MD or dirty CD.
• CD-R that is not finalized.
• You tried to playback a CD-R not designed 

for audio use.

• Some CD-Rs may not play due to its 

recording equipment or the disc condition.

A disc is automatically ejected.

The ambient temperature exceeds 50°C.

The operation buttons do not function.
CD will not be ejected.

Press the RESET button.

The sound skips from vibration.

• The unit is installed at an angle of more than 

60°.

• The unit is not installed in a sturdy part of 

the car.

The sound skips.

Dirty or defective disc.

Cannot turn off the “--------” indication.

You entered the name edit mode.

t

Press 

(LIST)

 for 2 seconds.

Radio reception

Preset tuning is not possible.

• Store the correct frequency in the memory.
• The broadcast signal is too weak.

The stations cannot be received.
The sound is hampered by noises.

• Connect a power aerial control lead (blue) or 

accessory power supply lead (red) to the 
power supply lead of a car’s aerial booster. 
(Only when your car has built-in FM/MW/
LW aerial in the rear/side glass.)

• Check the connection of the car aerial.
• The auto aerial will not go up.

t

Check the connection of the power aerial 
control lead.

• Check the frequency.
• When the DSO mode is on, the sound is 

sometimes hampered by noises.

t

Set the DSO mode to off (page 27).

Automatic tuning is not possible.

• The local seek mode is set to “on.”

t

Set the local seek mode to “off” (page 
26).

• The broadcast signal is too weak.

t

Perform manual tuning.