karol1241 Posted May 28, 2019 Report Share Posted May 28, 2019 Hello, I'm trying to fix my DNA board locally. I bought BQ76925RGER module from Texas Instruments, which is for 99% broken (showed me random voltage values on both cells when plugged and displayed "Check Battery") and gave to local service center. Unfortunately I came across a dishonest service technician - he told he will do it without any problem and now 2 resistors are missing and 1 is dislocated. At this time device doesn't recongise even voltage delivered by USB port but I'm not sure if it's not caused by not connected balance cable and the pin. He also burnt my screen from the bottom - I think he did it without any knowledge. I will be very thankful if you give me the parameters of parts marked on the attached photo, I want to send it to more experienced technician. I've found also that there's a way to recognise if the IC module is working well by measuring resistance of balance pin number one, but I've found correct values only for DNA200, which has different arragement of the parts. I look forward for any tips which I can share to the next serviceman, especially how to check, if there's any chance to repair it correctly. I've attached photos of my board. Thank you for help and best regards! Link to comment Share on other sites More sharing options...
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