Let me start by saying I really appreciate your help on this.
I changed the bq chip one more time with a brand new one and I dropped some fresh solder on the pads while I was at it. That got me amperage. .41 and nothing on screen.... All that effort and I think the processor is bad . Unless someone has found a cure for that I'm afraid this board is going to the graveyard.
Thanks again for all your effort
hello @Ttm3
yes, as far as I know the board/CPU is bad when it doesn't change from 0,41 amps to more (). but you can read this conversation, maybe this one helps (https://www.tronicsfixforum.com/t/0-41a-no-screen-possible-fix/223). I wasn't able to fix this problem too.
But I've got a question because I saw your post. I've got a mainboard where I get 4,5V on pin nr. 5 of the M92T36 and 0V on pin nr. 6. I already replace the T36 I guess four times, nothing changed. Then I replace the BQ24193 and the P13USB, nothing changed. Then I replace the IC which you guys mentioned here next to the audio IC but still no volts on pin nr. 6 of the M92T36. Do you haven an idea what else can cause this issue?
thanks!
yes, as far as I know the board/CPU is bad when it doesn't change from 0,41 amps to more (). but you can read this conversation, maybe this one helps (https://www.tronicsfixforum.com/t/0-41a-no-screen-possible-fix/223). I wasn't able to fix this problem too.
But I've got a question because I saw your post. I've got a mainboard where I get 4,5V on pin nr. 5 of the M92T36 and 0V on pin nr. 6. I already replace the T36 I guess four times, nothing changed. Then I replace the BQ24193 and the P13USB, nothing changed. Then I replace the IC which you guys mentioned here next to the audio IC but still no volts on pin nr. 6 of the M92T36. Do you haven an idea what else can cause this issue?
thanks!
https://gbatemp.net/threads/two-dead-mainboards-same-symptoms.558012/
@SheriffBuck is doing some great diag.
thanks for the link to the thread, it will help me a lot with my other dead boards, but it doesn't answer my question regarding pin 6 of the m92t36. do you have any idea why I don't get any volts on this pin?
I found the issue which was causing 0V on PIN 6 of the M92T36!! :-D it was caused by two missing caps next to the power flex cable and cartridge/touch connectors! I took these two from a different board and installed them on my damaged one. Voilà got 3,5V on PIN 6 of the M92T36. HTH
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