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betting 820-3476

literally a drop on Q7311, cleaned was powering fans on and USB, USB would turn off after maybe 7 seconds and no activity assumed Q7311 shorted dead and no CPU (should have measured) so I replaced Q7311 (donor 820-4924 board), still same behavior i then tried Q7311, Q7310 and U7310 now no fan...

had to run cables from J4800 to U5810 and now it seems to be good

ok I did Q9807 and PBUS_S0_LCDBKLT_EN_DIV stabilized properly at 4.21 Q9806 was still reading nothing on left pins to inductor did Q9806 (and a jumper to the fuse since that line seemed unreliable) and now it looks like it's all good

PBUS_S0_LCDBKLT_EN_L 3.42V BKLT_PLT_RST_L 3.3V LCD_BKLT_EN 3.3V U9701 pin 4 negligible mv pin 8 3.3V pin 22 and 23 both 4.96V

had liquid damage, fixed everything else up to this point replaced C9560, C7241, C7282, C7281, L9000, C9010, F9800,C9802 R9808 and R9809 but the last two are reading at ~100k in circuit instead of their proper values PPBUS_S0_LCDBKLT_FUSED 12.6V ok PBUS_S0_LCDBKLT_EN_DIV reading 6.31V at...

i gave up on that machine, i think i put a ssd on the optical bay

so very weird, i left it alone last 4 days in sleep while i was out of town and now it seems to be fine. i didn't even do a pram reset.

yeah whenever you plug in cord or unplug cord computer acts as if power button has been pressed. whether asleep or off. check PPVRTC_G3_OUT ?

yes runs and charges battery fine, pram reset had no effect

liquid damage, cleaned and everything looks relatively good except no backlight (image on screen) and probably thunderbolt caps may be shot PPVOUT_SW_LCDBKLT only 12.6V too low BKLT_EN 3.2V ok LCD_BKLT_PWM 0V bad SMC_LID_R 3.4 ok replaced U9701 now LCD_BKLT_PWM 3V but still no backlight...

yeah i know that behavior but this is different it does it even when in sleep if i disconnect or connect the cord it wakes up and stays on never seen that before, what part of the circuit would cause that?

replaced Q7080 and now everything seems fine charging, except it turns on every time you plug the cord in

i have previously tried new trackpad cable and trackpads (L2 so take it for what is worth) i damaged pad for pin 18 SMC_LSOC_RST_L, had a jumper wire but that seems to have come loose again with all the moment pins 16 and 17 are soldered ok yes everything else passes ASD fine going to find try...

this was all in 10.6 i'm been trying to boot up to something higher but doesn't seem to go 10,7 on up gets stuck at waiting for dsmos must be GPU right? still almost usable in 10.6

no water damage, runs fine off of batt when you plug in AC the green light blinks on super quick every like 2 seconds R7080 was reading like 2.3k so I replaced but still reading same any ideas before i take board out to check R7085 or replace ISL

had liquid damage, got everything working fine except ASD giving me TSOP trackpad error tried new cable same error tried new socket from donor (did loose 1 pad on board, had to run wire) same any ideas unless i'm doing the socket wrong?

Have a friend with an older 2008 a1260 who described the problem exactly as below and i have thoroughly tested it to confirm such i ran ASD nothing technically wrong it functions properly but boot up takes forever, like it stalls after loading everything in verbose often times to get it to...

pin 1 on J4630? nothing on any of the pins

820-2733 no USB checked 5V into U4600 no output, no enable signal Q4600 getting 5V on pin 1 R4600 ok 9.9ohm should I replace Q4600 or should I be looking somewhere else?