Recent content by chicocomputerclinic

Ok so checked R3741 and R3742 again and the values just kept bouncing up and down super low sometimes way too high, but mostly low. I removed R5580 and then the values jumped to what you would expect and stayed there. I left for the night but I'll have to look into this Tomorrow...

R3741 Pin 1 is 3.3v, pin 2 is 0.1v... even with U3740 removed. R3741 and R3742 are measuring ok. I see R3740 on the schematic and it doesn't say NOSTUFF but I don't have it on my board.. it wasn't there in my before photos. I don't have another one of these boards to see if that part should be...

No brainer, replace the lvds connector. pin 1 is PPVOUT_S0_LCDBKLT

Hi guys! Long time lurker Anyways, I had a 820-4924 come in with liquid damage. Most of the damage looked like it was around thunderbolt related stuff. Went through the ultrasonic, fired right up... no SSD detected. Tested the SSD externally on my iMac and it works fine. Checked U3740 Pin 1...

Corrosion can cause shorts, and corrosion can happen UNDER chips where your toothbrush scrubbing isn't going to do anything. An ultrasonic that is nice and hot and filled correctly with the cleaning solution will clean corrosion better than you can by hand and most importantly under the chips...

Don't use a heat gun near the battery unless you want it to blow up in your face, same goes with metal pry tools... stay away from anything metal or sharp. I douse the area with 99% iso and then use the ifixit cards to slip under each cell and cut through the glue. I can get one out in 5 mins...