820-3536 No video output.

bjf

Member
All voltages are present except Thunderbolt. No video out through external or screen. Fan spins. CPU is on and warm. Everything seems good like it should be booting. No voltage going to display connector. Unfortunately I have no info on the board. I'm pretty sure it's a spill but there's no sign of damage anywhere. No sign of life if I plug a USB drive in. No lights. Not sure where to go next.
 

dukefawks

Administrator
Did you wait for the board to discharge before measuring PP3V3_S0? What is resistance to GND on this bus in Ohm?
 

bjf

Member
It's at 24Ω. That number seems stable. Not moving at all. On a good board I'm seeing something in the range of 2.4kΩ.
 

dukefawks

Administrator
Well something is wrong on that bus, but EVERYTHING is on that bus. 24 Ohm is also not enough to heat something up. If you have no clue as to how this happened I'm afraid this board is a no fix.
 
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