Hello members,
I was hoping that you could help me with this repair, I do work for a company which have a lot of ADS-B receivers and about 100 of them are dead, no power or anything. In photo attached you can see board and some of work that I have done. There is nothing on a display. I know there is no short on board because there is no current flowing into the board.
I was hoping that you can give me some advice what to look for in case of dead board. If you cannot see on photos I will provide you IC labels
You can see more images here:
Under board with compute module
Under board without compute module
Best regards.
Regards
Hi BDjonko,
Have you done any work on the boards already or are they as they came?
Have you checked the underside of the compute module as it looks like something has burned/shorted the back of the "console" pins as can be seen in "Under board without compute module".
@matrs I have not done any work, and yes I have seen that burn mark but all components there seems to be okay, no shorted capacitors, resistors are measuring good. I think it may be LAN chip, which is right above that spot, and there is through holes for heat dissipating. I will replace that chip after I receive those.