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Working on a 820-2936-B with no backlight. No known liquid damage.
F9700 is good.
Have 11.09V on and .597 diode mode measurement PPVOUT_SW_LCDBKLT
Have 3.2V on P3V3_LCDVDD_SW_F
Have 3.3V on PP3V3_S0_LCD_F
Any idea why I don't have backlight?
The MacBook was liquid damaged. Everything except the trackpad works after cleaning in ultrasonic. Looks like the connector is missing a pin. What are my options? I see keyboard connectors available for purchase but no trackpad connectors. These melt if you try pulling one from a donor board...
Here are the diode mode measurements you requested:
pin 2 of R5280 is 0.338
pin 2 of R5281 is a short to ground (0.002) to be exact
it's not missing "the screw" and I did try using a known good interposer board between the battery connector and the mlb.
This board was liquid damaged. Board was cleaned in the Crest ultrasonic.
Everything on the board works, in fact the battery will charge, and it will run off the battery, but the battery is not being detected.
I have tried a different top case with a known good battery and a different...
For the record I ran ASD before several times and it was passing before I heated the SMC. The only reason I heated the SMC is because I read a lot of posts here where that was recommended on this forum.
Lesson learned. Next time I'll ask before going for it.
Anything else I should try before...
It was failing Ts0P...I checked the trackpad connection and it was partially unplugged.
I reseated the connection, ran the test again and it still failed.
Going to replace the trackpad and see if that solves the issue.