MacBook Air 820-3435-B Turns on NO Video internal or external

ohannis

New member
I have a MaBook Air 820-3435-B it screen went black. I connected external monitor and there was no luck. PMU/SMC reset nothing changed. I removed the SSD rebooted no luck. after running some test on the board i found the flowing.

Q3080 pin 2 and 3 has almost no voltage 0.01x
L3095 same case there is no voltage.
Q3080 pin 1 and 3 getting 8.5 volts.

am i on the correct route ? what should i check or what could be the problem?

Thanks
 

dukefawks

Administrator
The stuff you measured have nothing to do with image, only Thunderbolt. Does the machine chime when turned on?
 

ohannis

New member
Very interesting thing happened i left the computer on for about an hour suddenly i got a blinking folder. so i used another ssd and the system worked fine. so it seems that the SSD is bad. can we test the SSD somehow ?
 

dukefawks

Administrator
These boards will hang on a black screen with only backlight if the SSD is bad. Just test it in a known good machine, but it is common for it to hang like that.
 
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