Question about Sony CDX-F7700 CD Player

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Main lcd not working.

My player can do everything it should,but there is no display at all. Are there any internal fuses, or does anyone have a circuit diagram. Any help would be great.Have taken the back off the display to see if there are any loose or dry joints but it looks ok.

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  • 218 Answers

If the unit is a flip face then suspect the ribbon cable to the main circuit board from the front display. If it isn't a flip face then suspect that the back light lamps are out. If you can see a very very very dim image of the display when it is running then for sure it is a back light problem.

Posted on Sep 10, 2007

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This is a tricky one. There is a very small/thin ribbon cable which connects the LCD display to the main board. If this shifted, or came loose - highly unlikely, but possible - it might explain the issue you are having.

You will have to open it up to see if anything is loose, or not properly connected.

Or, I would suggest taking it to a qualified service center for repair. If the LCD is not damaged, shouldn't be too expensive. If the LCD just burned out, then look to spend about US$120-160 for the repair, including parts.

- Davis
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www.repairnyc.com
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