Troubleshooting - Sony CDX-GT770 Operating Instruction

Supplied accessories:
Card remote commander: RM-X156
Parts for installation and connections (1 set)
Optional accessories/equipment:
Rotary commander: RM-X4S
BUS cable (supplied with an RCA pin cord):
RC-61 (1 m), RC-62 (2 m)
CD changer (10 discs): CDX-757MX, CDX-656X
AUX-IN selector: XA-300
Interface adaptor for iPod: XA-120IP
Your dealer may not handle some of the above
listed accessories. Please ask the dealer for
detailed information.
MPEG Layer-3 audio coding technology and
patents licensed from Fraunhofer IIS and Thomson.
This product is protected by certain intellectual
property rights of Microsoft Corporation. Use or
distribution of such technology outside of this
product is prohibited without a license from
Microsoft or an authorized Microsoft subsidiary.
Note
This unit cannot be connected to a digital preamplifier
or an equalizer which is Sony BUS system compatible.
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.

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 power is being supplied to the unit.
• Check the connection. If everything is in order, check
the 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 volume is too low.
• The ATT function is activated, or the Telephone ATT
function (when the interface cable of a car telephone
is connected to the ATT lead) is activated.
• The position of the fader control "FAD" is not set for
a 2-speaker system.
• The CD changer is incompatible with the disc (MP3/
WMA/AAC).
t Play back with a Sony MP3 compatible CD
changer, or this unit.
No beep sound.
• The beep sound is canceled (page 10).
• 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.
• The power supply lead 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 10).
The display disappears from/does not appear
in the display window.
• The dimmer is set "Dimmer on" (page 11).
• The angle of the front panel is not proper.
t Adjust the angle of the front panel by pressing
and hold (ANGLE) (page 5).
• The display disappears if you press and hold (OFF).
t Press and hold (OFF) on the unit until the
display appears.
• The connectors are dirty (page 15).
The Auto Off function does not operate.
The unit is turned on. The Auto Off function activates
after turning off the unit.
t Turn off the unit.
The display disappears while the unit is
operating.
The Black Out function is set to on (page 10).
Card remote commander operation is not
possible.
• If the Black Out function is activated (no lighting),
card remote commander operation is not possible
(page 10).
• Make sure the insulation film has been removed
(page 4).
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