This LN40B530P7F continues to light lamps on/off cycle.I have feeling is the transformers but one reads 890 while others read 1099-1129 ohms.I have 4 on order as they were quite inexpensive think 890 one maybe issue.
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Re: Samsung LN40B530P7F on/off lamps continuously.
Probably bad ccfls. Try disconnecting ribbon cable from the main board to the power supply and plug in TV. See if lights stay on constant. I believe this model has pull up resistorsDid I leave the soldering iron on? -
Re: Samsung LN40B530P7F on/off lamps continuously.
This particular model has no ribbon cable just long strip with slots that have board fit into them.Have feeling may be ccfls though.Attached FilesComment
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Re: Samsung LN40B530P7F on/off lamps continuously.
What's the power board number BN44-00xxxWilling to help but I'm no expert.Comment
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Re: Samsung LN40B530P7F on/off lamps continuously.
Update a guy down street gave me about 40 scrapped boards and 3 big screens TVs.I went through boards found board like mine.i removed the top transformer the blue one replaced with mine as mine was reading 890 ohms and that one was 1120 ohms and unit stays on.bonusComment
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Re: Samsung LN40B530P7F on/off lamps continuously.
a reading being off like that on CCFL transformers is a dead give away. Good job!Comment
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