witor
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Jan 16, 2018, 1:24 PM
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LG plasma 60PB690V issues
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When I was watching a film screen went black and relay on the power board kept clicking. I measured output voltages of the power board and both VS and VA were very high compared to what is written on the panel. I have replaced the power board. When TV is plugged in there is just one click of the relay. No standby light no nothing. Interestingly when I unplug the power there is another click and standby LED comes on and stays on for a few minutes probably powered by caps. YSUS board in this model is powered from ZSUS and ZSUS gets power from power board. I measured voltages coming from the power board and with all other board connected voltages seem to be OK. I disconnected all the boards form the power board apart from the ZSUS board. I measured voltages on the output of ZSUS board which go to YSUS and I have noticed that I have 5V on the output which is labeled 18V. Does that mean that ZSUS board is faulty? is there anything else that I could try?
TV: LG 60PB690V-ZC.BEKLLJP
Power supply board: EAY63168603
Mainboard: EBT62904801
ZSUS - EBR77185901
YSUS - EBR77185601
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