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Hi, hope you are having a good day. So this board is heavy liquid damage. Ppbus_aon was shorted due to ur760 and ug800 and ug400 was blown. And up800 ( i just removed it as waiting for more of them)
I took off ur760
Replaced ug400( donor board a2442 but not sure if its good) ug800.
So no...
Oh this is a fun one. Liquid damaged. Initially didnt power on, thats fixed. Here what i have done so far, anything that looked severly liquid damaged i just replaced.
Here is the list -
Up800
Cp821
Rp801
Rp802
I dont understand this new backlight circut well as i am still learning to...
Back again. This machine is extremely liquid damaged and has me confused as i am still new to it.
Board got 5v and 0.3a
These are the lines that are shorted or low diode mode reading
Pp3v8_aon 0.120
Originally was shorted to ground but took off ur630 and thats the new reading...
Hi, so i have a a2337 no liquid damage or anything but ppbus_aon is only 5v
I have replaces u5200 the result is the same, the current sense resistor are all fine for u5200.
Ppdcin_aon_chgr_r is 5v.
I removed f5200 and the voltage on pin 1 was 4.9v
Diode mode on f5200
Pin 1 is 0.560
Pin 2 is...
So this machine came in with liquid damage
Had no image, ghost input and fan fast
For no image
i just replaced the resistor rr201 with a 100k and that worked
For fan fast
i replaced ue501
For ghost input
I replaced jt200 and dzt204 dzt 203( they looked damaged)
And now i am stuck as the left...
Hello, picked up an a2442. It has 5v on all 3 type c ports so opened it up to check and saw this chip on the board was destroyed alongside missing alot of the resistors.
So the first question is what does it do and can it be replaced?
My second post yay.
Alright so i have another a2338 with liquid damage. This machine is confusing. Initially it was 5v 0.05a. So checked ppbus_aon and it was 0.7 v. Figured maybe shorted so injected voltage around 1v on f5200, got no power consumption. Plugged it in and then machine booted. As...
Ok so i have a a2337 board i use for testing panels before i install them. Unfortunately yesterday it stopped working. It just take 5v 0.48a and if i put it in a housing it will sometimes go to 19v but only take 0.02 amps. I believe the device is in dfu mode due to the multiple on offs. I...
Hi. I have an a2338 with liquid damaged. For the most it was minor and cleaned up relatively well. Now the issue is the battery icon has an x when logged in. System report says 0 cycles and service recommended. Fan speed is normal.
Im still pretty new to m1 stuff so here is what i know so far-...
Hello amazing geniuses, boy do i have an exciting machine with me that needs knowledge I don't posses.
Alright so machine was liquid damaged top case side. The board only seemed to have liquid on the backlight decoupling caps. So shorted to ground. So I removed the caps to find a crater. Still...