SN: NHQ7JEP00B12009C2D3400
Model: N20C1
Motherboard: FH51M LA-J871P Rev: 1B 2020-06-04...
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Hello, The laptop doesn't turn on at all, I suspect there may be a problem witbh BIOS, would someone be able to take a look? And if necessary, correct the BIOS file. Thanks a lot!
SN: NHQ7JEP00B12009C2D3400
Model: N20C1
Motherboard: FH51M LA-J871P Rev: 1B 2020-06-04... -
2+ year old TV with many (720? 65" version has 720) mini LED dimming zones. TV boots, has sound, panel picture can be seen with flashlight. No backlight. No TV model sticker on rear panel (Maybe Samsung service removed it, read below). Found the model # through the PSU and zoned LED driver board numbers.
PSU has a click near LED output circuit at 1 second interval, sounded like the 4x barrier rectifier area. Protective pastic liner under PSU shows heat signature on the Schottky Barrier Rectifier in this circuit. Found a shorted diode (2 diode per rectifier, failed rectifier labled... -
Hi, gusy I need bios dump for laptop Dell 7567, motherboard LA-D993P.
My backup bios... -
Hey guys i need your help to fix this problem with this HP 15-da0073wm i7-8550U, this laptop originally has a 40 pin display connector for the Cell Touch eDP display and since i couldn’t acquire that display i decided to adapt the 40 pin connector to 30 pins discarding the touch related pins since the first 30 pins are the same as non-touch eDP displays, the problem is that it worked but not as i expected, you can see the problem in the pictures, i already tried to isolate the display cable from external interference or i think so, i tried with other displays but no video just black screen,... -
I can't find a forum to discuss "instrumentation Troubleshooting", but PS maybe the closest.
So, I'm having an issue with about 13 year old Agilent Function Generator. it works, passes self-test, but it has an annoying "audible" noise, that changes as I change the output frequency setting of the instrument. Prominent around 600 Hz and up (at least that's what my ears are picking up.) I saw on some forms that it could be fan, linear regulator, dried up caps,... I can't seem to find the source of audible noise. Here is what I tried:
1. Turn the output off - still...
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