Search results

working on this liquid damaged 820-3115, after u.c. the board powered on but had no wifi, and left shift key not working, also io0r sensor reading above hight point. i got the shift key issue taken care of by replacing the keyboard connector. Io0R current sensor is reading 10.999 a -I did...

I'm working on this 820-3332 thats got me pretty confused. when the machine came in it powered on then the screen would go black at the apple screen and keep running, The tech working on it powered it up on smc bypass and now the board doesn't power on fully. i get the left fan to spin for about...

Im working on a fun one agin. customer brought this machine in and stated that the keyboard and trackpad randomly stops functioning. when it was brought in i was able to verify that they did not work. i unplugged the battery to drain all power but still not functioning not even in boot menu. I...

I'm working on this 820-3332 that came in today. don't no the history. it has green/red light, pubs_g3h is at 12.6v, next rail i checked was ppvrtc_g3h, Found that it had 0.223v, checked and confirmed that it had a short to ground. chased it back to u1800. i dont have a machine to recall a chip...

I'm working on this 820-3330b that had a previous usb port not working. now the other port has stopped working. At first it would work intermittently and now not at all. the usb A port is working perfectly. i am getting 5v on pin one of j4700, I couldn't find a short to ground but when...

I'm working on a 820-3437 that powers on no video on internal or external. It does a PRAM reset but does not chime, it also does an SMC rest. customer states that they plugged a usb drive in and the machine shut off. i could not find liquid damage either. i checked u8300 and had no voltage on...

im working on a liquid damaged 820-2915 that after UC powers on and boots into os but with no backlight. liquid damage was around u9701 i replaced the chip but noticed that there was a missing pad on ball 5 ( PPVOUT_SW_LCDBKLT_FB). i went to run a wire to the chip but cant seem to find wx9720 to...

working on a 820-00165 that was working yesterday just fine, left it plugged in to charge overnight and now no green light on charger. pp3v43_g3h is present smc_bc_acok is present ppubus_g3h is low at 8.13v smc_rest_L is way low at 1.014v r5100 30koms I'm thinking I've got a bad smc, even...

I'm just wondering if anyone has a source they would be willing to share for 2015 15" macbook pro retina display panels?

i received this machine today for a screen replacement now it won't power on. this was a normal complete top lid replacement that had no complications everything went smooth(and yes the batter got unplugged before service), but when i went to power it on to test the screen i got no power. at...

working on this 820-2978 that had liquid damage all around the u2594 area had to replace U2594,u6901,c2599,r2590,c5025,and c4906. a couple had blown off the legs on pp3v42 side or were super corroded but the machine still ran. so i replaced those and put in uc and now it doesnt power up. poked...

I've got this 820-3662 that shows no video on the internal display. i get 0v on L8300 so i checked back at u8300 and have 0v on pin 1 which is the power on pin for u8300. i get 0v on PPVOUT_S0_LCD/BKL/T. I don't think this machine is seeing the lcd but not getting voltage on u8300 is making me...

I've got this 820-3330 board and only one of the usb ports work properly. USB A is not working, it does power on the light on my external drive but that is about it. i guess this port is also a SMC DEBUG port. i get 3.3v on pin 2 of L4600 which makes me think it might be in DEBUG mode, but not...

I got in a couple of these 820-00138 machines today. They had small amounts of liquid damage around the lcd connector. the board powers on no internal video, fans go full speed. i have the schematic but can't seem to find a board view for this machine. the machine didn't come with the original...

I'm looking at this 820-00164 that came in today. customer states that her daughter spilled a little bit of water near the power button. upon opening it up there is no noticeable signs of liquid damage what so ever. I mean this thing is clean but has the usual dust and fuzz that most do have. i...

I'm working on a 2009 20.5" imac not even sure about what the board number is. the machine runs just fine, but the fans are on full speed. ( i know we don't normally work on these, which is why its more of a signal question in general.) i ran ASD OS and it failed for 0x0: SMC PID Sensor check...

I was wondering if there is a ratio for the branson EC Cleaner to distilled water for the ultrasonic cleaner? I've been looking around and just get mixed answers.

i got this 820-3115. The fans come on high after about 5 seconds. ran ASD EFI and it fails for Ts0P. the reading is showing -124c. i understand that this sensor is in the trackpad ribbon. I changed with known good trackpad and cable, but still the same issue. thought i would check j5800 for...

I've got this 820-3115 that doesn't post video on internal display. video works great threw the thunderbolt port. i can see that the back light is very dim and no picture. the machine did have very minor liquid damage around c3888 and r3880. ppvout_sw_lcdbklt-- 27v L9080 pin1 and 2 are 1.4v...

So I've got 2 of these 820-3332 machines that do the exact same thing. both of them run great until you try to play a video in full screen, then they shut down. When booted back up i get the error report that says GPU Panic error. i ran ASD EFI and it passed. When i run ASD O.S. it fails for...