Question about Polaroid FDM-0700A 7 in. TV/DVD Combo
The dark screen problem with most of these units is due to a failure of the backlight inverter board. It is poorly designed, and sending the unit back to the manufacturer will only get you another unit that will also eventually fail. Also, replacing the bad chip on existing inverter boards will also only result in a short-term fix. I have purchased a number of these units (9) on eBay and replaced the inverter board with a different unit made by a reliable inverter manufacturer. A year later, all of the units are still operating.
Unfortunately, the replacement board does not have the same connectors and pinouts as the original, so it is something that must be done in a shop by an experienced technician. I am hesitant to post the instructions as it is a little tricky and the output of the unit is 900 volts. It would be dangerous for someone unfamiliar with this technology to do it on their own. I will look into the policies of this site and see if I can post my contact information so that owners of these units can send them for repair.
Posted on Dec 15, 2007
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