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Liquid damage all around U7701 and pin 3 & 4 on J8300 was 8.6v. Made me think LED Driver was dead. Swapped it out and same behaviour. BKL_EN = 3.1 BKL_PWM = 3.1

CS laptop needs a new battery, but it can't see any batteries. Board is practically spotless. In diode mode, SDA is 0.196v and SCL is 0.400v . 17/18 and 20/21 of the U7000 measure okay. Measure against a working board, SDA should be about 0.400. We looking at an SMC replacement?

I'm not very familiar with PCs and need some help. Asus X555LD. Connect power, board turns on. Turn it off with the power button, and it won't turn on again until you disconnect the power for a few seconds. If the battery is connected, it has to be disconnected too before it wil power back on...

Doesn't perform an RTC reset, fan turns on to about 50% throttle, after a short while it goes to 100%. CPU Stays cold, checked for PPVCOMP_S0_CPU and it's 0.2V.

Customer said they returned from holiday and it was dead. Green & Orange light behave as expected. I can hear a soft ticking when I connect power. Only corrosion was on C3532 and C7518 was corroded off the board. I get 40mV at R7547::1 & ::2. PPBus = 8.59v PP3v3_S5 is up and down like a...

Customer said laptop was dead, no damage to it besides being a bit old. The board was clean and the only damage was some corrosion on a TP on the trace from U4900::40. Behaviour; The board will sometimes boot and is sometimes completely dead. I have seen the screen brightness going up and...

I couldn't find a list of which ASD goes with which machine. Thought I would post what I have here and then maybe everyone could help keep it updated. (If this is against forum rules, just remove the post) ASD 3S108 iMac (Early 2006 17-inch) iMac (Early 2006 20-inch) MacBook Pro (17-inch)...

It was soaked. Board is in okay shape considering Green/Orange light okay. Originally I was only getting 1.6v on PBus. Sent it through the UC and now PPBus is right, still no power. Voltages in no particular order: PP_VRTC_G3H = 3.4v PP3v3_s5 = 3.3v PP5v_s5 = 5.02v PP3v3_s4 = 0v PP5v_s4 = 0v...

Anyone know of a video for this? I haven't done one before and just wanted to see what was involved swapping out a USB3 port on a macBook.

Customer said he messed the tiniest but of liquid on the keyboard and next morning it wouldn't turn on. Board is one of the cleanest I've seen. Absolutely no trace of any liquid anywhere. It isn't even dusty. PPBus = 12.59v PP3v42_G3H = 3.42v PP3v3_s5 = 3.33v PP3v3_s4 = 1.9mV PP5v_S5 = 5.02v...

Had a liquid spill exactly on C7500 and C7503. Since C7500 is 8v and C7503 is 5v, is it fair to guess a dead U7501?

Customer said it was showing colours on the display from time to time then just went dead. USB mouse doesn't light up, never chimes, PRM Reset does nothing and fan spins high. CPUVCore @ C1655 is 0.678v and Diode to ground is 0.001v

If this is the wrong section, please move the post. A shop gave me an HP board which went dead when they were replacing a broken screen. I found a 2.2Ohm resistor which was burnt out so checked in diode mode to ground and found it to be almost a dead short. When I put some current on the...

If I connect a known good battery I can get it to go past the chime but it doesn't sense the battery correctly. When power is plugged in an no battery it keeps rebooting randomly. With battery or battery and power it will make it to unlock screen, but; When power is connected the battery...

Tiny liquid spill directly on U8330 and R8310. Replaced both, but no change. Seems EDP_BLKT_EN becomes unstable once it posts.

Customer said it just went dead; board is in pretty good condition although the DCIn board was dusty. Here's what I have so far; PPBUS 8.19 ACOK = 3.3 to 3.7 always moving. PP3v43_G3H = 3.4 SMC_RESET_L = 3.34 R7005 is going up and down 16.3v to 16.7v

Cup of black coffee went straight through the laptop. So originally I noticed that R7020 was incredibly hot. Beauty, short. C7102::1 had 0v to ground in diode mode, so I figured shorted U7100. Had a ton of these. Issue ended up being C5002 dead shorted to ground. I also had to replace Q1840...

Take a look at how the top layer is bubbling. Is this worth repairing? Issue seems to be that BLK_PWM is at 0.460v and BLK_EN is also at 0.460v.

So board has visible signs of liquid almost everywhere but not much corrosion. Most of the liquid was maybe around U7000. It turns on and gives me an green light, no orange and runs off the battery no problem. Can also turn on/off when just on battery. U7000::17/18 & 27/28 measure as expected...

Works with an external screen. If I press on Q7707 I get a backlight with a white screen. Only works when pressing with my finger though, not a spudger or tweezers.... I tried just flexing the board too in case that's what I was indirectly doing. Either way, when I get a backlight, there is...