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Hi guys i got this 13 inch non touchbar that reboots every few hours. The logicboard is super clean no signs of corrosion, SSD drive tests OK with Drive DX as I know there is a recall for these. The machine is not eligible for SSD recall. Are there any known issues with this machine suddenly...

3.33v at J6601. You mean Apple ASD test? I did ran a test from external USB drive if thats what you mean, same issue. It was high sierra though, I read some people have issues with that OS and the mic? R6332 = 75 ohm Edit: not working in all OS. Ordered a brand new mic to make sure im using a...

Hi guys, I have an 3476 that we repaired before U8030 shorted, a little hole in the board. We wrired a new U8030 and Mac worked fine. Customer returned now with Mic not working. We tried another Mic from another Mac, same it shows no activity. I checked the lines 1,2,4 on J6601 but no short...

Hi, I have a 4924 without orange light. No power going to U7090. I have no shorts on D7005 Pin 2 & 3 but 1 gives OL. Measured some other boards i have lying around, they all show OL on pin one so maybe its normal? I got 16.5v on pin 2 of F7005. All resistor around Q7020 and Q7010 measure OK...

U2890 I took from the same board yep 840. Unfortunately customer had to leave and picked up the Mac, might be back tomorrow if he has more time. john, I used the IC with exact same number on them yes.

Looks like there is a fuse. I dont have schematics, but I have a board at hand.

Replaced the 2 CD3215C's but no luck yet. I have following measurements: F3000 & F3010 = 5.21v, should this not be 20v? U2890 had some dirt around it so i replaced it, but no 20v yet Edit: the CD3215C's i used i bought from China. I just read somewhere, these IC are programmed? Im not sure if...

Hello 2informatics, what do you mean by that?

I replaced one, let me try the other one as well, good point :).

This board came in with some liquid spil near the Type C ports. Short to ground on R3350. Found a broken line under D3309 and after fixing that short is gone. Also replaced U3100 for a new one as this one showed a slightly higher temp in Flircam then the one besides it. U7000 also was hot...

OK thanks will order that

What tool would you recommend for cleaning ROM ME region?

This board came in with no light on charger. Liquid at U7090, which I replaced and 3.4v came back. PPBUS = 8.6. More liquid at R7180, replaced and C7400 and C7425, resoldered U7400 as pin 12 had a tiny bit of corrosion on it. The boards now gets green and orange light, I have 3.3v and a 5.1v...

I have 3.3v on BKLT_EN_R on pin 3 & 4 5v on both with no display On pin 3 -> 5v and pin 4 -> 3.1v with original display connected Does that say something? o-scope I have to do monday not at hand.

39v is with the original display installed. 49v i got with my testing display, that is actually cracked. Yes its always missing backlight, not a black display. When i turn it on display shows. I close the lid, open it again and the backlight is off. With a flashlight I can see the login screen...

Hi guys, this one has got me going crazy..... So i have an 820-4924 with no backlight, usually my favourite repairs. Sometimes it works for a day and then its off again. Board looks superclean. Changed the display cable as these are not good in many cases, same issue. Changed the display for a...

I get 2.6K, i guess RIP

Hi Guys, i know its an oldy but customer wants to pay to fix and its not busy, so...... This 820-2390 keep chiming and high fan spin. Tried to run it with everything disconnected and a new keyboard, same. Before I start check anything, do these have GPU or vram issues? Its better not to try and fix?

Hi guys, We got an 820-00165 that was dead with a short on 3.42v. We traced it back to the SMC, after replacement short is gone we get all voltages and the fan starts to spin high. We have CPU clock and vcore. After the fan spins a while very high, it reboots and repeats. Tried another rom (has...

After adding Q8012 working again, tnx