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I don't know where to start on this one. I have the pdf but no bv. grrrr green/amber charger vcore, g3h, 342, present, warm processor no backlight no bootchime fans spin up for 10 seconds or so, stop, spin up again to high fan. I don't know if that is the regular startup routine similar to...

liquid damage, came in with missing components from another shop. No boot chime, green light or fan spin off magsafe. Once battery is connected > Boot chime and fan spin. If magsafe is connected while battery is connected, disconnecting battery, but keeping magsafe connected fan spin will...

Stuck on this one, used known good DCboard+ribbon cable (6 different ones) and still no audio, nothing shown in system profiler for audio. Using volume buttons shows no audio. Board was Liquid damaged, went thru USC all good minus this annoying problem, this is definitely a board problem. J9500...

820-3462 Liquid Damage - High fan > Boot Chime > Shutdown Once charger in plugged in, immediate high fan seconds later boot chime then 3-4 seconds later shutdown. No Green light. Where to start on this one? Thanks.

Changed U4850 with used chip from donor with clean J4813 area, pretty sure it's good by don't know how to tell. Used 2x different new keyboards Liquid Damage near J4813 both sides Ran thru UC Repaired pin4 of J4813 (PP3V42_G3H) What seemed like a simple quick fix is driving me nuts. :|

No Backlight Flashing Folder U9701 Changed 21+22 of J9000 PPVOUT_SW_LCDBKLT starts @ ~20v and falls to steady 12.54v in just about the same time flashing folder appears RTG at this point .567v 0.0v BLK_PWM 3.29v on pin 5 of q9707 LCD_BKLT_EN Any assistance would be appreciated. Thank you.

Board runs well but will not recognize / charge battery. All zeros in system profiler, yet when charger is removed it manages to successfully go to sleep from battery power. I feel I'm close but obviously missing key things. Please see my marked up image to see all that has been tested. Both...