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820-3476 pp5v issues (Orange light, no sound/video)
Resistance appears to be huge, and measuring capacitance shows ~10uF (same as C7505). So should I run a wire from C7505 to pin 29 on TPS51980? I replaced TPS51980 from a donor and got the same result except that pp5v_s5 was 1.4V. Re-seated the chip for good measure and now it's doing what it...- Monkey Bytes
- Post #7
- Forum: Macbook Logic Board Repair Questions
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M
820-3476 pp5v issues (Orange light, no sound/video)
SMC_PM_G2_EN is 3.398V- Monkey Bytes
- Post #5
- Forum: Macbook Logic Board Repair Questions
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M
820-3476 pp5v issues (Orange light, no sound/video)
Alas, the screw hole I was using as a ground was not properly grounding! The fuse has voltage (16.5v) Still, pp5v_s5 is .105v pp5v_s0 is missing. pp3v3_s0 is .105v pp1v05_s0 is missing pp5v_s4 is 0.415v ppbus_s5_hs_computing is 12.5v I see that u7200 seems to input ppbus_s5_hs_computing and...- Monkey Bytes
- Post #3
- Forum: Macbook Logic Board Repair Questions
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M
820-3476 pp5v issues (Orange light, no sound/video)
I have an 820-3476 Board with supposedly no water damage. I cleaned some corrosion from inside the thunderbolt ports. I found some corrosion near one of the debug connectors, so I removed it. Later I thought it may be a BIOS Issue so I replaced the bios chip. Initially this board had an orange...- Monkey Bytes
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- Replies: 22
- Forum: Macbook Logic Board Repair Questions