Recent content by macRepairAmb

Ended up being U8005 pulling 5v_s0 close to ground resistance. Now fixed. Thanks for the assist.

It flashes on then off once, then finally back on and stays solid

Have this board that doesn't power up, found PP5V_S0_CPUVR - 1.19v PP5V_S3 - 5.1v isolated to both Q7310 and Q7320 to be blow, short between pins 4 and 1,2,3 pins. Resistance reading of about 2ohms. Resistance reading of just pins 1,2,3 to ground is 12ohms, which matches a good board...

Yes to USB activity, no to external video. Tried both a desktop monitor and TV with same result.

I have this board that doesn't have image to the screen (no backlight or image). The owner states it had a Shorted out keyboard/trackpad and the has screen issues intermittently. I've tried a new display with the same outcome. Here are some measurements taken so far. This will be my first no...

DFU restore didn't fix it. Same issue still present

DFU revive didn't do the trick. Should i do a DFU restore which wipes the ssd?

No liquid sign on audio board. And what i mean was that once it's loaded to OS, the computer runs just fine.

Original issue was no power due to corrosion damaged capacitors, C6405, C6416 and C6482. Once power was restored, the computer boots up and runs fine with or with power adapter plugged in. But whenever the power adapter is plugged in, or power button is pressed to turn on, apple logo comes on...

Board originally had corrosion damage and not powering up. After cleaning, replaced U1900, U7600, U1950, C5125. Also repaired trace between C1950(1) and U1950(8). It worked for about a week and now not powering up again. When i place heat using a soldering iron directly on U1950 for about a...

PLT_RESET_L - 3.3 And yes, put good bios on with same result.

Originally the board was dead which i isolated to the smc. Once replaced, the fan would spin for like 12 seconds, stop and then start spinning and stays spinning but no board activity, no usb activity either. I did noticed the bluetooth module was getting very hot so removed it but the board...

Awesome. There were two other caps that I found that were shorted. I just got side tracked by those when I was wrapping up. Never even got to test it. Guess I should have tested my work before going down this rabbits trail. Thanks for the info.