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Thank Duke for replay. Will tray to inject L7260 pin 1.do i need to replace u7200 first?

sitting here whit another 820-3115 on P5VS3_LL i measure 0.010 in diode mode that is ground? (i think it should been around 0.138) have tray to remove u7200 C7290 C7291 C7293 and q7260 and still have the same can anybody pleas tell me next step?

Thank you for replay louis. It's too late i blow smc away ? Waiting for a new one. Then i will try replace u2600. See there is missing 2 trace under smc 1 is UC and second is GND_SMC_AVSS it is 3 off thes under smc and all off them goes to the same place so is this one important?

Tray to reflow smc then? Sorry to add the photo so late.

No Title No pulse light on pp5v_s3 C1802 Pin 1 3.33V C1803 Pin1 3.33V R5085 Pin1 3.43V

No Title Found something here. Will measure voltages on C1802/3 and check SMC_ADAPTER_EN now i will chek PP5V_S3 with light diode and report after

No short on the s5 rails. I dont have scope so need to buy som LED tomorrow and try with.

PP5V_S3 give me nothing (0.0V) on the multimeter ( I tried a couple of times) R1800 (Pin1) 3.32V (Pin2) 3.22V R1801 (Pin1) 3.32V (Pin2) 3.04V R1802 (Pin1) 3.32V (Pin2) 3.31V R1803 (Pin1) 3.31V (Pin2) 3.31V

Got green light again. Change dc-in board

I was a little careless when I turn the card, magsafen hit the network connector and that resulted in no lights in the magsafe

Sorry ppbus is 12,59V pp3v3_s5 (c9009) 3.32V battery disconnected.

Have a 820-3115 that wont power up. Have green/orange light in magsafe ppbus_g3h: 12.49V PP5V_S5 : 5V Missing s4 trace (History the owner just told me that it died under OS install) no sign off water damage.

When you replace glass on a a1278 or 1286 how do you do to not get a lot of dust behind? some machine for room cleaning ? just air flow?

i dont know the resistans right know. have remove booth was ready to inject voltage. but any way something is wrong on this trace since i burn my finger on booth off them. will replace them whet new one and report.

Are you sure about 5v? I can only see 1.25v

ok. will tray it tomorrow and report. Thank you Duke

Will tray that. Inject max 1,25v right? if the cpu geting heat there is nothing to do right?

L7630 d0.001 and L7520 0.001 (diode)

Guess it's nothing too fix on

1 beep. I also burn my finer on L7520 and L7630