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thanks, i have had some of theese with overheat and cpu f**ed. so will back to customer.

board with no liquid damage. Just stopped working. injecting 3V in PPVRTC_G3H got CPU hot. CPU dead? P.S. On input it shows 14V and for few second it is going up to 1.90 amps then back to 0.02 Amps.

no reason, just used to do it. But you are right:D

dont understand what you mean. About post 11 quote?:)

Diode mode of 12 and 3.3 V on U6300?

Will do so. It was 6990. Thanks

I would like to use it but I dont know very well how diode integrity is working. What make you think that 0.150 is failing C6990/91, etc?

PPVIN_G3H_P3V3G3H - 0.150 R6906/05 are ok. About D6905 is very strange because replaced it from donor board and not usb pulsing ( i have usb-c adapter that show V and Amps and it is blinking every 4-5 seconds ) and not recieving voltage, put back original and get 5V again. D6905 ?

12V0 with u6300 on board is beginning go up very slowly from 0 V, now after 2 minutes with power supply connected i have 1.8V and growing. 3V3_S0 is 0V.

Autoreply. U6300 is making board not turning on. When it is removed, board start normally, when i put back new or old U6300 it doesnt turn on. Also checked pin by pin if there is any short but only GND pins are shorted all other are ok. Will try with another new chip ( from donor) and back...

Got this with "explosion" in C6300-C6305 area. IT was burnt. Cleaned and replaced all componentes . Short is gone but still not turning on. CHecked all S5 rails and they all are ok. Not getting All_Sys Good and PP1V01_S0 is shorted to ground or near to short ( 50Ohms.). Whant else can i...

smc had been reballed twice. Always same result. Heat up area and got 8,58V and when it is cold getting 8,17 V This board is trolling me.

got same board today (working) U3100 PP3V3_UPC_XA_LDO 0.505 (0.505--> will put here working board) PP1V8_UPC_XA_LDOA 0.525 (0.521) PP1V8_UPC_XA_LDOD 0.486 (0.482) U3200 are same almost may be with 0.001-0.003 difference that i think doesnt matter. TBA_AUX_DET - 1.2V TBA_VDDA/P 5V...

Water damage board with video, backlight areas damage. I have already reballed smc but it gets 8,6 v only after putting smc and while smc area a still hot and only 1 time, after reconnecting magsafe drops to 8.18V. The issue is that boards doesnt detects battery.

thanks:)

i dont have another working board like this here. On R7020 i get 5.2 V both sides.

No water damage. Just stopped working. visual inspection with no result, board seems ok. Power rails: PPBUS - 0V ( not shorted) PPDCIN_G3H - 5.2V PP5V_S5 - 0V (not shorted) PP3V3_G3H - 0V (not shorted) BUF_SMC_RESET_L - 0V SMC_RESET_L - 0V CD3215 no LDO have voltage.

so nothing more to check, right?

The board was water damage in U8400 area. So checked all rails and found that PP3V3_S5 is shorted to ground. Checked all components on that line and all seems be ok. Injecting 3V only CPU points where arrives PP3V3_S5 is getting hot. CPU is dead or there is something else i can check?

LDO from u3100 are ok? " PP1V1_UPC_XA_LDO_BMC - 0V (not shorted) " is that ok?