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Resistance on output cap is arount 25kOhm. I disconnect the D4 and test it is ok.
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Thank you, i check R1 and R2 and they are fine, also D1 is fine too. I think that the Ic is bad. I try ti freezee it with spray and i get 5V on output for a few seconds. This unit need to have 5V on standBy so i guess the faulr is in thet IC
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R8,R9 are not open, when i disconnect the red wire i still have 0V output so no short on other board. Voltage across the small cap is 1.5V
U1 have mark: 362L49
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Sorry this is what i ment, and than i have Dc up to the transformator
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Xiaomi Vacuum Cleaner Charger PSU
Hello my vacuum cleaner dock died, 0V on output. I replace the caps but still no voltage. I found out that this resistor is broken (showing 0 Ohm) do know the value of this? Is this really 0 Ohm resistor?...
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I found a short but now i have this on screen. I think i am giving it up1 PhotoLast edited by rtstorm; 04-03-2024, 11:09 AM.
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This is burned trace not solder residue. The cap is not shorted. I removed it but not the burning happens on seconds 0 Ohm resistor. I dosconect that part of LCD and other side show error like grom begining1 Photo
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Ahh, my happiness was short. TV worked like 1h and than i got this lines again and after resetting TV the screen was black with backlight.
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i fond this burned on left side of panel where i removed the diodes...1 PhotoLast edited by rtstorm; 04-03-2024, 09:36 AM.
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Yes, thank you. Hope this will help someone else with this kind of problem.
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I remove the 4 diodes and guess what? tv work :-) Thank you!
is this ok to leave panel without those diodes? What are they for?...
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yes this guy have exact problem like i do, but he have problem only on one side of the screen. But i do not understand did he just remove the diodes or?...
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