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820 00840 A Not booting up randomly, no known water damage. Just stopped working after screen repair
Okay. Got 0.2 ohm on PPBUS_G3H and got that same number on both R22 coil (L7210 and L7220).- lonelyworks
- Post #5
- Forum: Macbook Logic Board Repair Questions
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820 00840 A Not booting up randomly, no known water damage. Just stopped working after screen repair
Thanks :D I checked with the diode mode to ground on PPBUS_G3H, got beep on all of the connection. All of them had a low value. I checked the big coils to ground and one of them didn't beep (L8410). I read the ''How to collection'' it helped understand. Let me know if I didn't understood something.- lonelyworks
- Post #3
- Forum: Macbook Logic Board Repair Questions
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820 00840 A Not booting up randomly, no known water damage. Just stopped working after screen repair
I got an a1708 that is not booting up after an screen repair. I'm a bit of beginner into this, but I want to learn. I started checking voltage with some of the known point and got these: PPBUS_G3H 0.4mv PPDCIN_G3H_SNS 19.88v PP5V_S5 0v PP3V3_G3H 3.40v PP3V3_S5 0.1mv SMC_ADAPTER_EN - 0V...- lonelyworks
- Thread
- Replies: 5
- Forum: Macbook Logic Board Repair Questions