xprog green vpp problem
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  1. #1
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    Default xprog green vpp problem

    have found some problems on my xprog
    there was short on IRF7316 from in to out to LM317L VPP pin on xprog
    and B0505S-1W was dead to, no 5v on two pins , after replace there is 5.38v
    but still no voltage on VPP
    cant find more dead components, need help

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    i got voltage on vpp all fine now
    but when i try read MICRONAS 3217g its show JTAG ID does not match . Device ID: 0xfffffff

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    Default

    i have same problem did you solve yours ??

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    Hello to all. Upload good photo of pcb for more information, on which pin you are missing voltage, more info.
    IF I HELPED YOU PRESS THE " T " BUTTON

  5. #5
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    Hello to all. What voltage do you have on pin1 of IRF7316 ( 8pin mosfet ), pin2 is control pin and pin 7,8 are output of transistor. When programmer needs VPP it will pull to low
    pin2 and if you have voltage on pin1 it will pass to pin 7,8.
    IF I HELPED YOU PRESS THE " T " BUTTON

 

 

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