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OK thank you Duke

How do we test if it's the SMC chip or not?

Resistance to GND on L7260 pin1 .0446, pin2 0.447, R1803 pin1 3.304V pin 2 3.298, SMC_ADPAPTER_EN on Q7920 pin 2 is 3.439V

Measured again although I did not have the board connected to power source. L7260 pin 1 .446 pin 2 .446. I operate with a FLUKE 17B+ and in diode mode there is a small V next to the reading, that's why I wrote 1.047V before, sorry.

Resistance to GND on L7260 pin1 1.047V, pin2 0.447V, R1803 pin1 3.304V pin 2 3.298, SMC_ADPAPTER_EN on Q7920 pin 2 is 3.439V

s5_pwrgd on chip U7941 pin 8 is 3.459V. R1800 pin 1 3.305V pin 2 3.209V, R1801 pin 1 3.305V pin 2 3.030V, R1802 pin 1 3.305V pin2 3.299V

Went to a friend who has a professional oscilloscope, measured on L7260, no pulse :( Is the board dead?

I have no oscilloscope, when measuring with FLUKE on voltage mode I get no reaction when connecting the power

One day was working fine, next day did not boot. No liquid damage visible.

Hello! got this board that worked fine yesterday and now appears dead. I've got green light in the charger, PPBUS_G3H is 12.54V, all main s5 rails are good. I did a visual inspection, no liquid damage but caps C1680, C1681, C1682 and C1683 did not look right, as if the metal part on each side...

OK thank you Duke for putting this board out of its misery... on to the next one on the pile!

No L7100. On L7400 it shows 0.991. Resistance to GND on 3V42 bus is .093

Hello, I managed to repair the onewire circuit on this board myself :) Now, when I plug in the charger I get a green light after about 5 seconds and the fan immediately starts spinning and goes full speed after some more seconds. No chime. I short the pads next to the keyboard connector and the...

No chime. Bought the macbook cheap on ebay. Removed the speaker that is glued to the logic board and it revealed some mild corrosion here and there. The rest of the board is clean.

No image on the LCD with flashlight. No image over DisplayPort. I touch the laser under the mouse and every time the red light goes brighter...

On both, yes.

both pins measure 0.98V

Hello! An old board this 820-2327, I know, but I'm still practicing... Fan spins for 11 secs, stops for a second and then spins endlessly. I get light by plugging a USB mouse. PPCPUVTT_S0 is 1.06V. PPVCORE_S0_MCP_REG is 1.08V and SMC_MCP_CORE_ISENSE is 0.20V. What should I measure next?

Replaced the C7771 cap as instructed. Tested the board, all done. Thanks a million!

820-2330 has not enough space as the 820-2610 has to replace C7771 with a proper large one. Does Luis have a video on this model?