I have a Philips 42PF7220A/37 April 2006. Chassis Number BP2.3U TV that does not work. The front LED flashes red seven times and the power supply led flashes green three times. VSCAN voltage drops to zero (or climbs). I unplugged the power feed cable to the y-sustain board and the error codes go away and VSCAN voltage remains at -190VDC. I replaced the y-sustain board and the error codes went away for approximately 30 minutes only to return again. I still did not have a picture for that 30 minutes
SOURCE: Philips 42PF7220A/37 April 2006. Chassis Number BP2.3U
Usually, LJ92- numbers made by Samsung have the best price....
Replace both drivers & Y-main at the same time...........T.
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O.K. I was able to solve this problem on my own. I had to replace both Y-Buffer cards (Upper and Lower) along with the Y-Sustain card.
I purchased the cards from the http://www.vancebaldwin.com/ website.
I took a long time for the cards to arrive. Even with the long wait, I am pleased with the results.
http://www.vancebaldwin.com/products/?LJ...
JVC LJ92-01202A P.W.BOARD ASSY 136.02
Philips LJ92-01202A Y-BUFFER(UP) CALL
Philips 996500032639 Y-BUFFER UPPER 151.13
http://www.encompassparts.com/products/?...
Philips 996500032640 Y-BUFFER LOWER 151.13
http://www.encompassparts.com/products/?...
Philips 996500032643 Y-BOARD 188.37
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