It turns on and chimes, has good CPU Vcore, but no PPVCORE_GPU (and it's not shorted to GND). Someone obviously messed with U9300, Q9330, Q9331 and Q9361 as U9300 has no bond on the edges and all of these had flux residues around. I changed all of them, but it's still the same. GPUVCORE_EN and PPVCORE_GPU gets tiny pulse after turning on. Not even a pulse on PP5VR3V3_SW_LCD. Nothing on external screen.
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820-3787 No GPU Vcore
- Thread starter PJs
- Start date
This could be waste of time now.
That "someone else" (tehnician???) could already f***d off the board.
You can check basic voltages for U9300 and look for knocked off components in that area.
Be sure R9330/60 and C9330/65 are good.
That "someone else" (tehnician???) could already f***d off the board.
You can check basic voltages for U9300 and look for knocked off components in that area.
Be sure R9330/60 and C9330/65 are good.