ebalcsk
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Aug 30, 2020, 6:21 AM
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Samsung ue40eh5000 no stand by light
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Hello my grandmother Samsung ue40eh5000 is died even no stand by light. After disassembly I found one busted capacitator (CM852 47µF 200v) in the power board. I replaced it but still no standby light. - If I disconnect the main board cable from the power board the backlight is light up. - I measured the right voltages towards a main board 12.75v , 5.2v - The 2 VAMP kable also have 12.75v - (I don’t really know what going on the PWM line) I think the power board is working fine. I think the mosfets are ok in the main board I measured 3.4v 1.8v ….. and not found a short What I found towards a switch button (ir, standby light) board instead of 3.3v only has 0.4v My question is the problem with the main board? What would be the problem? Where should I look? Might be better to change the complete board? Thank you
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