820-00164 No PM_SLP

[computercaverva]

All PM_SLP_(S5, S4, S3, S0)_L are missing. PPBUS_G3H is 8.61v, PPVRTC_G3H is 3.33v, PM_DSW_PWRGD is 3.412v. We're using a real 85w MagSafe. Board suffered liquid damage, but sadly this is all we know.

 

[JohnB8812]

Pp5v_S5 and 3v3_S5 present and steady? If so, usual suspects U1900, U1950, JTAG, traces near BIOS, SPI resistors crap under SMC etc.

 

[computercaverva]

Oddly, I used to have PP3v3_S5, but no longer. It's at 0.057v, though I still have PP5v_S5. Already replaced the SMC. The JTag has already been removed, and U1900 already replaced with new one. U1950 seems to be alright, no damage near it, and no shorts. SPI resistor traces are good. Traces near BIOS already repaired.

 

[JohnB8812]

Missing 3v3_S5 is a problem. Resistance to ground on 3v3_S5?

 

[computercaverva]

2.83 kΩ. I'm currently looking into PP3V3_S5.