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A2179 year 2020 I do not know the board number

KC Micro Tronix

KC Micro Tronix

Member
I have no idea where the board number is on this thing. I crossed it using ebay to a 820-01598 and found a copy of that but that was wrong.

The fault I think is a common one. The 5v filter near the display plug melted down. The 5v rail is now down and the camera no longer works. I dug through the bone box "not mine" and found two more boards with this exact same problem.

I really need to trouble shoot this rail as it is down now. So when I fix the damage on the board there will be no power to that FET and passaves in the area anyway. Also what is causing this on these boards? What is the fix? I am sure someone else as seen this!
 
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KC Micro Tronix

KC Micro Tronix

Member
update: using another board I reversed the line and discovered that the via is blown somewhere in the LB. Not sure. But the connection to the buck converter is gone. I am going to run a jumper. I cannot find any reason for the failure. There are no shorts. So I am thinking it must be in the camera assembly not sure.

If anyone has some guidance that would be awesome.
 
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