For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
00840 board , i had water damage , U7220 was shot to ground, changed this , now all power line good, all coil have power , cpu getting little hot too, fan spint for 5 sec then off,
all coil have power except L7210 and L7220 .... any idea why , is my cpu dead, or u7220 i chaged is no good, ...
got this macbook , light water damage, ppbus 0ohm to ground , then i insert 1v, 2 amp, and alcohol allover, i notice u7220 getting really hot, ( it use ppbus )
IS MY CPU DEAD already
is u7220 shot to ground or some mosfate or caps?
i have this 33437 board , had slight water damage , cleaned , there was some trace missing around smc i fixed those those ; now board working but no audio, i also tried known good i/o board and flex cable , any idea where what would be wrong, in osx it showing no audio device , j9500 looks...
this board had slight water damage, board turns on no back light ( there is image , i changed the led driver, 2 times, feed back line is good (A5) , it have 8.59v on back line line,
known good screen,
i notice EDP_BKLT_PWM 0v
R7731=2.8v
any idea
also i notice if i turn on mac then disconnect power and run with batter ,,, then i press power button for .001 sec it shuts off , when it run battery it shuts off right way as soon as i press power button
yes battery recognised charge and everything i can see under osx, when macbook turns on i can remove charger it will work with battery, also i tried with known good battery same result.... both battery charge and work, i can see under osx .