Search results

Will do, and thanks for the explanation.

Hi, I have a liquid damaged 820-0138 with hi fans. The damage is minor and directly was found on R5381. G3_Poweron_L pad was burnt off the board as well. i have so far ran a wire from G3_Poweron_L to its test point next to R5172. SMBUS_SMC_5_G3_SCL is fluctuating from 3.42 - 3.20V. Replaced...

Ok, thanks. Update : This one may hang for a bit due to the fact that I don't have a scope. Thanks for your input.

Thank you for your reply, L7630 fluctuates between .003V and .004V. L3095 starts at .003V and stops at .040V L7520 - 0V L7430 - 0V Pins 7 & 3 of U1950 are not pulsing. Thank you!

Hi! I have a liquid damage Air that turns on occasionally. The damage was minor and in these areas: JTAG - Removed. U1900 - Replaced and traces checked. U7501- Replaced and traces checked. U7701 - Cleaned U3220 - Cleaned U4430 - Replaced Here are voltages PPBUS - 8.5 PP3V42 - 3.42V PPRTC -...

Hi! Sorry for the delayed response, I got sidetracked and just got back to this one. I tried the full display assembly with the same result. HWMonitor showed that the issue was with CPU Sensor. SMBUS _SMC_SDA was fluctuating. Followed that line to U5620, where there was a tiny bit of corrosion...

Thanks for the info. Will check and report back.

Does anyone know where I can start with this one? Thanks.

Reflowed Ram and all is good. I honestly didn't think it was gonna work, LOL. Thanks again!

Liquid on a few spots. J4800, U5110, some around SMC as well. Replaced J4800, touched up SMC area as well as reflow and touched up 55110 area. Replaced I/O Board and cable, as well as TP cable. Fans still high. Ran Apple Diags and Im getting SMC error and Camera error. Fans high with or without...

Thanks John. Appreciate the reply. Have a good one.

This board came in with 3 beeps, no liquid. Customer says that he was in the middle of an update for High Sierra, when the screen went black. When he tried to power it back up all he gets is three beeps. I will most likely not attempt to work on it because the board goes for like 150 on Ebay. I...

Have this board that at the beginning was shutting down very randomly. Had a minor hint of liquid on C2643. Replaced it, and its still shutting down very randomly. Come to find out that its not so random after all. When board is plugged in and its running, if i tap my finger in the U7600 section...

This has been resolved. Thank you.

Tried with new KB. IO is original. Update - Tried with new IO board and wifi and usb is good now. Tried board in a different shell with known working KB. Still nothing. In System Report under SPI it shows "Internal Apple Keyboard" (sorry I was mistaken when I said it wasn't showing in the...

HI Sorry for the delayed response. Upon further inspection there actually was a small bit of corrosion on the KB connector. It must have been shorting the power pins. Replaced it and its booting to OS again. But now I have no internal KB in system report. Nor do I have USB on the I/O board. Also...

No history. No liquid that I can see yet. This computer turns on, chimes, shows Apple logo then shuts down right away. Tried with two different batteries. PPBUS is at 13V when charger is plugged in. 11.75V on battery. SMC issue?? Thanks guys.

Ok Duke. What about like, an iFixit battery where they guarantee working? LMK. Have a good afternoon.

Reflowed/Replaced SMC the other day. Screw is in, (found that out the hard way, couple days ago) ;). The battery I have says Apple japan on it and has the liquid indicators on it. Here is a pic. Please let me know if this is my problem. Thanks Duke. https://photos.app.goo.gl/oNN7PUWqhutyV2oq6

Computer came in very slow and laggy. Like when aftermarket battery or no battery is being used, which in this case it was aftermarket and not being recognized. So, I ordered a new battery and a week later installed it. Powered on the computer with the new battery and it went right into OS...