Question about Insignia 42" LCD Flat-Panel HDTV
LOOKS LIKE A COMMON PROBLEM. CAN ANYONE BE KIND ENOUGH TO LET ME KNOW WHICH BOARD I SHOULD BE LOOKING FOR TO REPLACE OR REPAIR. I CAN REPLACE CAPS IF THATS THE PROBLEM. I KNOW INSIGNIA AND PRIMAS ARE THE SAME BECAUSE I PULLED A FEW FROM A DUMPSTER WITH BROKEN SCREENS AND TOOK THEM APART. JUST MY LUCK ..I CLEANED HOUSE AWHILE BACK AND TOSSED ALL MY SPARE PARTS.
I just repaired the TV.. It's the main power board that's causing the problem.The biggest board in the TV. I took a metre to the old board and it's failing on the VS circuit. I was only getting 14volts when i should of been getting 78 volts or something like that. If you look on aluminum backing of the screen .. top right corner there's a sticker which tells you what the voltages should be for the VS and a few others. It's the 10 pin socket top left corner on the main power board. VS is the first 2 pins. That's the part of the cuit that caused the screen not to light up. I had audio and power but no picture. All the other readings I took were normal on the board that was failing. Only the VS reading failed with the 14 volt reading. I put in another a good used main power board and took a reading from the VS pins and it was normal. I connect the cable to the y board and the TV powered up and is displays fine. If there's someone who does work on low level cuits and finds the actual part that is failing I would like to know. I replaced my board with a known good one and traced it too which part of the cuit failed. I suspect it's just buying time and don't plan on spending another $100.00 on another board after this one. So any help would be great. Thanks for all Craig
Posted on Oct 09, 2008
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Posted on Jan 02, 2017
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