I am working on this HP Envy 17-chxxxx laptop. When power button is pressed, I brieftly get 5v and 3.3v lines. While testing components, I checked 65992d chip. Pin#4 appears to be shorted (4th pin down on the left side). When applying 0.8v to it, the chip lights up on the IR camera. I am trying to figure out the chip schematics but it's not available online. Because I do not have another board to compare with, I don't know whether this is normal or not.
Perhaps, someone has it?...
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Hi i have Samsung UE55MU6405
The tv will not turn on, there is no standby light.
Main board BN41-02568B (BN94-11958Q)
Screen CY-KM055HGAV3H
When i remove the psu cable to main board i get backlight
1,8V and 3,3V on main board
Attached my dump file from 25Q40
Can someone send me the right file please?... -
Hello. Please clean ME region in my bios.
Thank's... -
Hi I just picked up a Samsung QN50Q6DTA. The issues was a 2 red flashes on the power button as the TV tried to turn on. Power supply OK. Backlight LED OK. If I remove the data cable from panel , sound is ON. I was able to identify the issue within one side of the panel. Used the tape fix and I placed the tape on 4 pins on one side of the flat cable. The TV ran great for 4 days and then the same problem appeared again...2 red flashes on the power button LED. Took the back panel off again and this time mode the tape on a different location and now the TV is running again. Am I missing something?... -
Hello, picked up this tv a nice Oled QN77S90. However, it's blowing fuses like crazy (got the whole room lights go out the first time). So i digged and it seems this tv has the BN44-01264A PSU that often fails. However, replacements are costly (samsung replaces it for the BN44-01329A revised psu).
I'd like to troubleshoot that one. Here is a picture of it, but honestly i don't know where to start. It blows a 12A fuse in a split second, it's really a hard short on this one. Thanks for any guidance ! ...
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