Recent content by prodigy83

Yes, sorry, I also tried that, no go. I ran an apple diagnostic, no errors found. It does the apple recovery just fine, but this only happens when trying to boot using the internal SSD. I also tried verbose and single user mode. Still same issue. I took a video of what it says during verbose...

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...

Under U7800, pad TP_PMIC_PGC came up while applying new solder. It does not go anywhere else, is this going to be a problem?

Diode mode: PP1V25_PMICVREF .888, its supposed to be .480. P1V2_PHASE .086 supposed to be .224. PP1V2_S3 .087 supposed to be .223. PP0V6_S0_DDRVTT .262 supposed to be .136. I am going to try and swap out this chip U7800 if I have a donor somewhere.

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?

Oh boy, okay, thanks, I now know. I figured I was safe if the chip is off. Total opposite, thank you for your help and knowledge.

Floating on air? Looking at Q5840, I see it has 2 gates.

Looks like it's the processor. What is weird is I took up U5700 from the board and plugged the USB-C meter and I saw the voltage go to the regular 5.1v, but when using the IR camera, Q5840 got real hot, so I lifted this too, then Q5820 I noticed was getting quite hot. I put down some alcohol in...

How do I narrow it down? What are some possibilites? Should I Inject voltage even though it is not shorted to ground?

U7700 PP3V8_AON_SPMU 2.86v PP1V5_AON_VCORE_SPMU 1.1v U8100 PP3V8_AON_MPMU .070 2.87v PP1V5_AON_VCORE_MPMU .382 1.10v

Yes, I saw the LDO's at the bottom of page 37 for chip U7700, but when I click on PP1V2_S2_SPMU for example, it goes no where as opposed when I click on PP3V8_AON_SPMU, it highlights all the capacitors around U7700. It doesn't appear openboard.org has this data either when I looked at a few...

The filters are the LDO's? U8100 PP3V8_AON_MPMU .070 PP1V2_S2 .284 MPMU_BUCK4_LX3 .069 MPMU_BUCK4_LX2 .069 MPMU_BUCK4_LX1 .068 MPMU_BUCK4_LX0 .068 MPMU_BUCK10_LX0 .147 MPMU_BUCK10_LX1 .147 MPMU_BUCK6_LX0 .452 MPMU_BUCK5_LX0 .272 MPMU_BUCK5_LX1 .274 MPMU_BUCK5_LX2 .273 MPMU_BUCK5_LX3 .273...

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...

Ordered, thank you very much!