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Red proble at ground 405 shows both side. I have known good board measure it 395 shows i think its not important difference.

Looked like clean J4002 connector but also removed after your suggestion, nothing changed :(

Thanks for answer Duke and aprendiz, Yes you are right when checked SMBUS_SMC_1_S0_SCL line voltage is drop 0.6V ( must be 3.4 v ) Checked R5361 fine also replaced. When checked line not short a ground ( checking voltage when board is pulled out with out lcd keyboard etc. , when machine turn...

Hello Everybody Working on liquid damaged around SMC. Cleaned and worked fine. 2 days after clean board trackpad start to jumping and machine too slow. but 1 hour later every things fine 2 hours later again same problem. 10 times worked ASD only one time see error at bottom other times...

Thank you Duke after replacement GPU problem solved.

Hello Everybody This machine come with kernel panic problem when working graphics or video . I know this machine have GPU issue but extended warranty ended. Problem is looking like mid 2010 GPU switch problem. When started ASD kernel panic with this report; Video Controller External: Gmux...

Hello Everybody Working on liquid damaged around SMC 820-3437-b. Come with no power problem . After reball SMC power come back and machine power and OS loading ok but now fan problem and slow. Reballed 2 times but nothing changed. SMC log at bottom. Tried also I/O board and trackpad but...

Thanks Duke. Didnt replace connector yet but ll start from there. After GPU heat little bid.

Hello everybody I m working on graphic issue like pictured (I dont know how can i describe it:) , i know it not cause from GPU because ASD pass and not freezing or like that. Tested know good complete LCD and cable with cover Re soldered LVDS connector Reflow GPUMUX (U9600) where can...

I don't have any idea but also machine I/O board is damaged (could be relation) after replace I/O board this problems happening ..

Hello Everybody I m working on 2011 macbook air 11" , when plug power cable machine turn on 3 seconds later off and turn on again and 3 seconds later off again ... Disconnected every thing and replaced known good I/O board same problem. Checked PPBUS_G3H ,PP3V42_G3H ,PPVRTC_G3H and other S5...

Thank for suggestion Duke. Problem is PP3V3_S3 voltage surge after replacement U8010 every things ok problem solved.

Hello Everybody Working on liquid damaged A1465 Late 2014. before come to me some ones clean board and replaced LCD connector and replaced bios , (I m not sure where liquid damaged) Computer turns on and working but too slow and fan noise ; When i checked by ASD [12/31/13 16:25:49]...

Thank you very much Duke. After replace track pad connector from board side problem solved.

Duke replaced from same code donor boards SMC.

Hello I'm working on 820-3437-B board was liquid damaged around trackpad (board is looking totally clean) Computer can not starting from keyboard but if battery not connected when plug magsafe adapter starts(its normal i know) and works normally . When touch power button ( not long press only...

Thanks Duke suggestion Removed C5710 and R5710 but same resistance:( Double time checked keyboard connector but looking good...

30ohm is resistance at ground. (disconnected power and keyboard )

Hello Everybody iMac starting normally with backlight but few hours suddenly turn off Lcd backlight (machine is running i can see image at screen) then turn off and on machine continue working backlight. We also changed LCD backlight board but same problem is continue and today tested imac...

Hello Everybody I'm working on A1425, first problem was PP3V42_G3H create problem. it solved after R6905 ,R6920 changed but now SMC_ONOFF_L voltage is too low (1.5V) . PP3V42_G3H line to SMC_ONOFF_L resistance is 30ohm but it must 8.5-9K around ( i checked with known good board) Also changed...