I have an HP L1925 LCD monitor that has a Video Input Logic Board (00.59802.B01 REV.B) with a pixelworks PW131A-20Q chip that won't power on. I verified all the other parts to the monitor work with a known-good logic board. It looks as though the power from the PSU of the monitor flows through this board and then onto the power inverter to power the display.
My biggest question is, see the huge green capacitor that says "TAICON" on it? (Left of the pixel works chip) Visually, it has a lot of gewy crud all over it-- is that putty just to hold the capacitor in place, or is it actually blown? Do capacitors blow like that?
What's more, could that be the cause of the blowout burned mark on the bottom left of the back of the board, directly opposite the AC 1501-50 03013 chip (that has 5 pinouts)? My guess is that chip blew, but WHY did it blow? Would replacing this chip just cause it to blow out again?
My biggest question is, see the huge green capacitor that says "TAICON" on it? (Left of the pixel works chip) Visually, it has a lot of gewy crud all over it-- is that putty just to hold the capacitor in place, or is it actually blown? Do capacitors blow like that?
What's more, could that be the cause of the blowout burned mark on the bottom left of the back of the board, directly opposite the AC 1501-50 03013 chip (that has 5 pinouts)? My guess is that chip blew, but WHY did it blow? Would replacing this chip just cause it to blow out again?
Comment