820 3023 water damage

[EJS]

820 3023 No power, i have green light on mag safe, quarter fan spin, board looked over all in good shape, I replaced Q5060, it was the only spot corroded. Can't find any shorted lines.

PPBUS_G3H 8.41v
PPVIN_SW_T29BST pulsing .121v-.007v
PPVIN_S5_COMPUTING_ISNS 8.41v
PP18V5_DCIN 16.41V
PP3V42_G3H 3.41V
PPVRTC_G3_OUT 3.30V
PP5V_S5 5.02V
PP5V_SUS_FET 5.02V
PP5V_S3 0V
PP5V_S0_FET pulsing .245v-.026v

T29_PWR_EN pulsing 2.2v-.089v

 

[dukefawks]

If Q5060 was corroded there is likely crap under the SMC or the termination resistors from U6100 are corroded (R5110 and friends, 12pcs)

 

[EJS]

Thanks Duke, you are the man! It was R5111, pad on SPI_CLK_R was shot, running now.