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This had liquid damage , was cleaned in ULSONIC , get green light on the charger , PPBUS is 0.1-0.3 v , no short on PPPBUS. when injecting 8.6v to PPBUS the board does turn on and fan spin . assume missing PPBUS, all PPBUS looks clean .

Sorry my bad we have so many boards here which made me confused This one yes work only with charger and shows x on the battery . maybe ISL is bad ,will replace it tomorrow and update you . but another board 820-00165 that has 0.3 volt on the PPBUS has green light on the charger and no short to...

Injected .....

As I mentioned I injecued 8.6 volt from the power supply and the board turns on . I did not say it is turn on without PPBUS . Without battery plugged I get 0.3 v

Yes had liquid damage . voltage on PPBUS close to 0 , no short to gorund . when inject 8.6v to PPBUS the board is works and fan spin . checked all the PPBUS Rails they looks good . have green light on the charger and pp3v42 is 3.4v .

820-00165 Shows x on battery . good tested battery , won’t see it at all working with charger , hope not the smc!!

2informaticos , you are right , the 45w charger goes to protection status and to use it again even with good working laptop I must unplug it from the outlet then plug again but I checked around Q7010 there no corrosion around and looks clean no burn or damaged chipset. replaced the R7012...

We use only original apple charger replaced the I/o board flex cable too not charging with 45w no light on the charger and not charging the battery . but charge with 85w and now tired 60w it is charging . i found the R7121 missing , soldered new one but still same issue . not sure if the u7100...

This board works fine with 85w charger and charge fine but when switch to 45w charger show light on the charger then go off . tried different 45 w but same result . assuming there something wrong with PP3v42-g3h ?

I get green light on the charger pp3v42 is 3.42 v ppbusg3h 8.6 v PPBUS S5 computing isns 8.6 v PPBUS S5 other isns 8.6 v PP5v S5 5v PP3V3 S5 3.3v unplugged the I/o cable still nothing no fan spin !

Thank you a lot fixed by replacing the U7701

Have short to the gorund on this resistor but still give 5v and short to D7720,L7720 resistor has 0 ohm when I removed it then no short to the ground but seems not the cause of the short , when I solder new one short came back . Maybe need to replace u7701 !

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Since the components misplaced on the 820-00138 schematic hard to find the numbers for resistors . i have the 2.2ghz which bit different than 2.5ghz schematic. on the backlight output I get 12.6v I will post picture and make it

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I get 0v on the D7701

When flashing the light on the lcd there is an image . there nothing damage around at all . the pin 5 is 3.3v the pins 28-30 are 5v but what noticed once turn it on in few seconds the heat sink is boing hot, not normal heat on normal Macbooks . could be gpu ? Even I get external monitor ?

The SMC getting hot , drying very fast when test with alcohol .

No liquid damage ,working with external monitor fine . customer tried to replace broken screen but no backlight with any working screen , tested 4 of them with new lcd cables F7700 is fine 0 ohm no short to the ground . maybe the LVDS .

i get no voltage on PP5V_S5 OR `PP3V3_S5