Whenever the front panel is opened, there is no illumination and no functions can be operated. When the front panel is closed using the remote the display does not work. You can get the display to work if you press the reset button but it fails again once you open and close the front panel. In addition the CD will not eject the CD, however this may not be related.
I done open stereo surgery and discoverd that when face panel opens i saw a nightmare that most of us out ther who once owned a motarola flipp hand set would of remembered the same thing happening? and guess what these stereo`s have the same truble . yes you guessed it that flexible pcb which is connected between the face and the unit is splitting on the face end of the head unit . i promis that is the cause get the magnyfier out. 3am im off to bed
I am having exactly thee same problem!! None of the buttons on the base unit light up/work and when the cd player is closed it's just a dark screen. I cannot eject the cd that's in the cd player either. The remote seems to work fine. I have tried just about everything including changing the fuses and nothing seems to have worked at all.
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You can use the following. You may not have all the wires but you should have most. Good Luck and please rate.
BLUE POWER ANTENNA
BLUE/WHITE AMPLIFIER TURN ON
GRAY RIGHT FRONT +
GRAY/BLACK RIGHT FRONT -
WHITE LEFT FRONT +
WHITE/BLACK LEFT FRONT -
VIOLET RIGHT REAR +
VIOLET/BLACK RIGHT REAR -
GREEN LEFT REAR +
GREEN/BLACK LEFT REAR -
It's possible that the "illumination" wire is not connected or connected improperly. It's also possible that the front panel electrical connections are not making proper contact. Remove the front panel and gently clean the contacts with a pencil eraser.
Also, the CDX-C680 allows you to select either green or amber illumination. One or the other may be defective. Try changing it. Press SHIFT - press "3" (set up) three times - press "5" (right arrow) to change the setting. Also check the setting for "dimmer". ON will result in a dimmed display at all times. AUTO will dim the display whenever the headlights are turned on (if the wiring is connected properly). OFF will result in the brightest display at all times.
if the remote makes it work and it plays ....if all functions work other than display check for bad solder joints on the display pay attention to the ones on the corners if the unit is or was a tight fit in the dash its possible that the unit got a little stress and broke loose from the board .... if there is a white powder look in the display it probably bad... the silvery black in the corners is normal