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Water damaged around USB on board. Cleaned. Feeback trace is good. I get 20V out, nothing on screen. I've tried another display, same thing. What am I missing?

This was water damaged Macbook, keyboard took damage and a bit of the SMC area. Someone tried to repair it previously by making one jumper and reflowing ISL. Using DCPS, the board tries to boot and pulls 1700mA, but drops shortly after to 24mA and stays there. I'm guessing SMC not working...

Macbook just died by itself. Board is clean, nothing visible have I found. Replaced U7501 and it board tried to boot to 200mA and more, but returned back to 24mA. PPBUS 8.6V PP3V42 3.42V Orange light present Solder balls around Q7520

PPBUS on battery 11.3V. ASD fails at VP0R even with 70% charged battery.

Water damaged around C9687, down below from DC Jack. Cleaned in UC, tried booting. 55mA. Pulled U2600 out, found PP3V3_S5 0.0017 diode mode. Tried injecting 3.3V there, U1800 gets warm. Am I screwed? Maybe just for test lift all caps in damage area where liquid was?

Board is clean, no water damage. PPBUS - 12.6V PP3V42 - 3.42V PP5V_S5 - 5V PP3V3_S5 - 3.3V I check the System Power Management page for missing signals. Present: SMC_ADAPTER_EN - 3.3V PCH_DSWVRMEN - 3.3V PM_DSW_PWRGD - 3.3V S5_PWRGD - 3.4V Missing: PM_BATLOW_L

Board is clean and no previous work has been done. DCPS pulls 105mA. These are missing rails: PP1V2_S3_CPUDDR PP1V2_S3 PP0V6_S0_DDRVTT PPVTTDDR_S3 On U7400, EN pins are present as well as V5IN.

Not Macbook board related, but some info would be nice if someone knows. I'm a complete noob here. Problem: doesn't start. 3.42V and 11.89V present. Other voltages pulse when the power button is pushed. Board is clean and no previous work has been done. Actually, I even managed to start it...

PPBUS - 12.2V PP3V42 - 3.4V PGOOD - 3.3V ALL_SYS_PWRGOOD - 3.3V I seem to have input signals for U7400, but it doesn't shoot out CPU VCORE. DCPS pulls 155mA before it raises up to 230mA as the fan ramps up. SMC was just replaced with another working. What other signals should I take care of?

Board was water damaged. Cleaned with UC. Damaged areas showed in pictures. After cleaning, looks pretty good, including under SMC. Rails present & stable: PPBUS PP3V42 PPVRTC PP5V_S5 PP3V3_S5 Not present: PP5V_S4 0V PP3V3_S4 0.235V

History: It had some minor issue on PP3V42 and then it was working good. Suddenly shut itself off, then was working day after and again shut off. Turn on, shut off. I found some solder balls around U3740, but they could be a result of previous technician work since I see that CPU, SMC and BIOS...

Water damaged around battery connector. Already changed ISL6259 due to lower resistance on CHGR_UGATE. (0.110 vs 0.527 on known good?). It measured around 0.527 after replace. Laptop started, battery not recognized yet. Checked CHGR_UGATE and it's around 0.110 now. ISL pins 17/18 (3.9 Ohms)...

This board has problems when external Display is hooked up to Thunderbolt port. Internal and external displays stay black until you close and open the lid a few times. Then they both work properly.

Water damage. Cleaned with UC. Checked pins 17/18 and 27/28 at ISL. Changed few resistors and ISL. Fixed Q5300 missing 2 pads and made jumpers for pins 3 and 4. PP3V42 --- 3.47V PPBUS ---- 12.59V PP5V_S5 pulses PP3V3_S5 pulses PM_BATLOW_L pulses SMC_ADAPTER_EN pulses What could I be missing?

Okay, this board was nasty around U3890 so I put it in through UC (first bath UC, finally). PPBUS was shorted so I removed Q3880 and short was gone. Other stuff should also be replaced, but that can wait I think. Always present rails are good. PP3V42 and PPBUS are 3.42V and 12.59V. Then I...

Board is clean. No history available. I'll guess it could have been dropped. It doesn't want to load OS. Stops at loading bar at the very end. Something holding it back.

Board was water damaged. Fixed a couple of parts to get ISL working. The rest I have cleaned with iso. PPBUS_G3H -------------------------------- 12.56V PP3V42 --------------------------------------- 3.42V PP5V_S5 ------------------------------------- 5V PP3V3_S5...

Board is clean, PPBUS_G3H and PP3V42 present. Took a visual on the board and it looks pristine, except that I've found discolored Q3880 and C3895 had solder balls around. Then started going through power rails to see what is present and found that PP3V3_S5 gives 0V or is dead shorted 0 Ohms...

History: - water damage (I don't know how much), but 2 red marks are visible (1 removed though) - SMC area was reflowed (glue not completely removed) - PPBUS_G3H is 8.57V - PP3V42 is 3.43V - battery shows 35% health, no water damage visible, could be just worn battery (forgot exactly how many...

So, this is my first Touchbar. I was hoping something "easier" would pop out, but it is what it is. As for history, water went through keyboard. 12 pictures are attached where corrosion was found. I still haven't done my homework on newer Macbooks, so I was hoping if this one could be a "noob"...