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My Reference only: TT10294 Problem: When booting, only Apple logo displays, and stays this way, occasionally you will get a error where you have the power off watermark in the background saying the computer rebooted because of a problem, and to press any key to reboot or it will reboot itself...

My reference: TT10275 Board History: Tons of dust, very dirty, especially around U4200. PP1V8 I get nothing. PPBUS_PMIC I get the 12.59v PP5V_PMICLDO: 0v PP3V3_S5: 3.3v PP3V3_PMICLDO: 0v P1V2_SW_SNUB: 0v U7800 problem?

My reference only: TT10141 Board history: Coffee spill. Most damage was around UP800, U5000, and U9300. Issue: Not powering up, USB-C meter shows 4.92v, drawing .95 amps. Work performed: Replaced U5200, Q5820, R5215, R5216, CW194, CW187. I removed and placed back down UP800, U9300, Q5240...

My reference only: TT10189 Problem: liquid damage, does not turn on even though USBC meter shows 20v. Work done so far: C9589 had a short and was replaced. CHGR_BGATE has 12v but is unstable, it drops to 4v then back up to 12v. I have already replaced U7000, I also removed all the capacitors on...

My reference only: TT10141. Problem: I need to purchase a mosfet chip from board 820-02100 M1 Pro, that is supposed to be Q5820 but according to Digikey, the schematic diagram I sent them, neither are relevant to the actual mosfet specification I sent them. I just basically need to find this...

My reference only: TT10141 History: Coffee spill. Lot of damage around UP800, U9300. There is a lug at the bottom left corner of resistor RP860 that is missing. No documentation on what this is for. Q5240 had looked like it had damage. Current issue: I plug in the USB-C meter, it goes to the...

My reference only: TT10031 Board history is unknown. Everything looks clean, no visible liquid damage. USB-C meter is stuck at 5v. I have isolated the issue to PPBUS_AON by removing F5200/01. When both fuses are removed I get 12.59v on PPVBAT_AON_CHGR_REG, but on the PPBUS_AON I get 1.42 which...

My reference only: TT10011 Issue: Screen is not producing picture, no external video either. History: Very small amount of corrosion found at TP: GPU_CLKREQ_L_R (just below C1951), I did not at first think the corrosion was touching anything except the metal casing on the board. I ended up...

My reference: TT9890 History: Customer spilled tomato juice on his computer, lots of damage. I had it powered on and working, was charging at first too. The customer brought this back to me twice. Each time it was not charging. After visually inspecting, I saw 2 damaged diodes, I did not have...

My reference only: TT9952 Issue: Apple logo appears for about 2 seconds then screen goes black if timed just right when attempting to power on. Computer never turns on all the way however the meter shows it is getting 20v with the board in or out. History: Customer was doing a Ventura security...

My reference Only: TT9919 Board history: Severe liquid damage all around C7701 and surrounding areas. I replaced about 20 or so capacitors in this area. When I put everything back together, everything on the board was working, including the keyboard caps lock light. But when I sealed it up all...

My reference: REF1144 Board History: Some liquid damage, would not power on at all. Replaced: U7000, U7650, C7689, C7651. USB meter goes to 20v. When I first plug in the charger, I see it jumps up to about 3v on C7651 during the first few seconds of being plugged in, but it drops off.

My reference only: TT9851 iMac came in with no power. We live in Florida so the customer thinks lightning. At first I thought the power supply was the issue, so I replaced this, I could hear the capacitors making a constant but quiet whining noise. New power supply came in, this did not fix...

My reference only: REF1144 History: Board had liquid damage but I have cleaned it up. Problem: No S5 other than when I first plug in the charger, it goes real fast, but looks like the voltage jumps up to 3v, then quickly drops. I never get anything else after that. I have already replaced...

My reference: TT9832 Board History: A very tiny amount of corrosion was found on C9034 (PP1V8_SSD1 shorted and replaced capacitor), and CA780 was corroded and replaced. Problem: Anything with S5 in it, I do not get, I do however get all the PP power rails, SLP and AWAKE rails. Board is...

My reference only: REF1132 No history on board other than no power when it came in. 5v on meter, no amps drawing. I replaced U7000 twice, PPBUS_G3H is flucuating between 1.2v, drops to .933v, then back to 1.2v, and it repeats this consistently.

My reference only: REF1135 Board history: Liquid damage, around J8500 there was heavy rust, parts were off. I have replaced what parts I do believe I need to at least get an image on an external monitor but no go. USB meter shows 20v, and when I place it in to it's shell it does pull .79 amps...

My reference only: TT9775 Board history: No liquid damage, customer states they charged their phone like the always have done and went to go use the computer the next day and it would not turn on. USB meter intermittently shows 20v, but most often it is at 5v. If rotate/flip the meter around...

My refernce only: TT9752 I get no PP1V8_SLPS2R, so cannot do DFU. I have replaced U7000, still same results, 5V on the meter. PBUS line coming from U7000 is 1v. 5v is present on R7020 pin 1. PPVBAT_G3H_CHGR_REG also has only 1v. What am I missing here? No liquid damage at all. The board is very...

Reference Only: REF1137 History on the board, I think the touch bar could have fried some things but I am not certain as I have worked on this a while back, and am back at it again. I can see picture externally on a display, and also on the LCD screen, just no backlight. LPDP_INT_HPD does not...