Troubleshooting - Sony CDX-GT490US Operating Instructions Manual

General
Outputs:
Audio outputs terminal (front, sub/rear switchable)
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Inputs:
Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
USB signal input connector
Tone controls:
Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements: 12 V DC car battery
(negative ground (earth))
Dimensions: Approx. 178 × 50 × 179 mm
× 2 × 7
1 1
(7 / /
8 8
Mounting dimensions: Approx. 182 × 53 × 162 mm
× 2 × 6
1 1
(7 / /
4 8
Mass: Approx. 1.2 kg (2 lb 11 oz)
Supplied accessories:
Card remote commander: RM-X151
Parts for installation and connections (1 set)
Design and specifications are subject to change
without notice.
• Halogenated flame retardants are not used in the
certain printed wiring boards.
• Halogenated flame retardants are not used in
cabinets.
• Packaging cushions are made from paper.
22
in) (w/h/d)
1
/ in) (w/h/d)
2

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.
If the problem is not solved, visit the following
support site.
Support site
http://www.sony-asia.com/section/support
http://www.sony-asia.com/caraudio/
General
No power is being supplied to the unit.
• Check the connection or fuse.
• If the unit is turned off and the display disappears, it
cannot be operated with the remote commander.
t Turn on the unit.
The power antenna (aerial) does not extend.
The power antenna (aerial) does not have a relay box.
No sound.
• The ATT function is activated.
• The position of the fader control "FAD" is not set for
a 2-speaker system.
No beep sound.
• The beep sound is canceled (page 17).
• An optional power amplifier is connected and you are
not using the built-in amplifier.
The contents of the memory have been erased.
• The RESET button has been pressed.
t Store again into the memory.
• The power supply lead or battery has been
disconnected or it is not connected properly.
Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the position of the ignition
is switched.
The leads are not matched correctly with the car's
accessory power connector.
During playback or reception, demonstration
mode starts.
If no operation is performed for 5 minutes with
"DEMO-ON" set, demonstration mode starts.
t Set "DEMO-OFF" (page 18).