Sharp TV LC-42LB261U
Wouldn't turn on when plugged in. No LED indicator either. Thought for sure this would be a PSB problem.
Replaced the PSB the first time and thought it was just a bad unit. Returned. Ordered new PSB. Plugged this one in and still the power button does not a thing when touched.
Puzzling... And I'm a TV repair noob, so I request guidance from the elder gods. I have a volt meter and a soldering kit.
Could this somehow be a problem with the actual cord connecting the PSB to the button board?
Could this be a main board problem somehow?
Waddup wit dat?
Edit:
Oh, I also checked the DC voltage out from the PSB.
The schematic on the board said:
15. 5v 16. 5v
12v 12v
12v 12v
12v_A 12v_A
GND GND
GND GND
And sticking the pins in each one of them I only got a few that read 15v. Is that normal?
Wouldn't turn on when plugged in. No LED indicator either. Thought for sure this would be a PSB problem.
Replaced the PSB the first time and thought it was just a bad unit. Returned. Ordered new PSB. Plugged this one in and still the power button does not a thing when touched.
Puzzling... And I'm a TV repair noob, so I request guidance from the elder gods. I have a volt meter and a soldering kit.
Could this somehow be a problem with the actual cord connecting the PSB to the button board?
Could this be a main board problem somehow?
Waddup wit dat?
Edit:
Oh, I also checked the DC voltage out from the PSB.
The schematic on the board said:
15. 5v 16. 5v
12v 12v
12v 12v
12v_A 12v_A
GND GND
GND GND
And sticking the pins in each one of them I only got a few that read 15v. Is that normal?
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