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I have this machine that the trackpad becomes unresponsive after an unspecific amount of time of idling unless I click the trackpad. Once I click the trackpad the pointer becomes responsive and functions normally. I dont have any extra trackpads laying around for this model that is why Im...

R7803 was good. All traces were good. Noticed that BT was also missing in sys report which I should have notice much earlier. Replaced U2700. All is good. Thanks again for the assistance GB and as always Duke. Have a good one guys.

No... My external KB and mouse lockup after initial post test. Does the searching for hardware thing and says ready to test, but I cant select Test at this point, which has happened before on other machines so not sure if its related or a different issue all together. Either way there is 0...

With internal TP and KB connected as well as external USB KB/MS using software provided by GB. Its sees my external Apple KB and Optical mouse. Nothing internal detected. Thank you for jumping in and providing your assistance GB, that program is a good tool to have around. Apperciate it! :D...

Hi Duke. Not sure about your first question, I dont have the computer with me. I was able to boot into OS off of external drive via USB and USB KB/MS works. Internal TP/KB doesnt work in OS or EFI. Thanks man.

Hey! Got this board with mild damage by SMC. Also C4920, R5313 and C5304 were knocked off but have been replaced. Everything seems to work but TP and KB. R5806 - 18.7 V Pin 22 of J5800 - 3.3V Here are diode measurements of J5800 1 - 0 2 - 0 3 - .683 4 - .683 5 - .683 6 - .683 7 - .683 8 -...

Thanks aprendiz for response. Will do. It just seemed odd that it would spike from a data transfer. Thanks again.

Hi. Passes ASD EFI but fans run high at times when performing what should be effortless tasks. i.e. copying 6 gigs of data from and external HDD. reapplied thermal grease. There are small signs of liquid below the PCH on both sides. But very minor with no visible corrosion in scope. Thanks...

Yea... Sending it back. Thanks Duke, have a good one.

Reflowed that area. It seemed to work so I installed it out of curiosity. Now it stays on as long as I dont jostle it or turn the computer upside down... Whats odd is that the board is screwed down. I dont know how flipping it upside down while in the machine would make difference. Lol, this...

This board came in with minor liquid damage around U1900, U6100. Broken trace from pin 1 u6100 to R6117 repaired. Board now turns on and boots but seems when I flex or put pressure around L7320 area (not saying it is L7320) Vcore shuts down (1.7V to 0) PPBUS stays steady 8.5 as well as...

Hey, good afternoon Duke. No... BIL does not show a charge. But then again I just noticed that pin 10 of J6955 is totally missing and C6951 looks like shit. Which is par for the course for this board as you can see... https://photos.app.goo.gl/Ov9Vs1LeT4MIOOly2 Do you think I should just throw...

Does Not Work From Battery. Same 12.25v on ppbus 1 fan spin. ** Since last post I changed SMC to rule that out in case last one was bad. Now I have no grn light. Ppbus is still the same whether its battery or charger power. 3.39v on pin 5 u6990. 3v on pin 12 ISL. SMCBCACOK is 2.9v. Idk... I...

Okay. Thanks Duke. Have a good day.

If your referring to pin 18 to pin 2 to C7050, there is continuity even though it looks awful. I guess I'll run a wire just in case its not sound.

Of coarse... Here are the measurements... Sorry. Yea I know PPBUS is too low. PPCHGR_DCIN - 16.4 - 16.64V VDD - 5.49V VDDP - 5.49V Actually it was couple traces. Here is pic. Like I said , this section of board got hit pretty bad. It its cologne. Every time I heat it up with hot air the...

Hi, hows it goin? Ok, so got PPBUS working slightly low at 12.25V after replacing ISL along with Q7080 along with surrounding components. Also found damaged trace in the area. PPDCIN is still fluctuating slightly. Charger Only - 2.25V PPBUS and green light. Fan spins for 1 or 2 rotations then...

Hit it right on the nose. Thank you Duke.

With F7040/41 removed PPBUS is 1.5V to 1.8V (up and down). PPVBAT_G3H_CHGR_REG is 2.1V to 2.7 (up and down). R7020 is 2.6V to 2.8V (up and down) ISL has been replaced already. Battery only 11.43V on PPBUS with fuses back on. This board was obviously damaged by liquid in this area. Also pins...

PPDCIN - 16.4 - 16.6V (bounces up and down) PPBUS - 2.3 - 2.4V PP3V42 - 3.392V (Green light present) PPBUS Diode Pin 2 F7040 .435 U7000 Pin 27/28 20.1 Ohm Pin 17/18 3.0 Ohm Pin2 - 16.4 - 16.6 V Pin 23 - 2.37 -2.39 V Q7080 16.50 - 16.86 on source 6.42V on gate R7081 pin 1 - 2.4 - 2.6V...