820-2914-B Brief startup then shutdown

[dukefawks]

Are you getting 1.5V on L7330?

 

[jb_bak]

L7330
PPDDR_S3_REG_R side 1.43v
DDRREG_VSW side 1.20v

 

[jb_bak]

I"m getting no voltage on L7550, is that normal?

 

[dukefawks]

L7550 will only get power once the board initializes the video.
What is the resistance to GND on L7330, 1.43V is too low so it may be loaded down.

 

[dukefawks]

You destroyed a $600 board with a garbage rework station. When I have a machine with an unrepairable board it is end of the line. No way these machines are worth spending $600 on a board. Dump the whole thing on Ebay and cut your losses. Next time take stuff to Apple