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(Topic ID: 277016)

Taxi - Special Solenoid Driver blowing

By thedefog

3 years ago


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  • 60 posts
  • 6 Pinsiders participating
  • Latest reply 3 years ago by thedefog
  • Topic is favorited by 2 Pinsiders

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    #25 3 years ago
     
    DEC

    GRUMPY

    Pinside member

    10y 95,050 8,703

    OP
    Quoted from thedefog:

    But after 2-3 pops, the power starts to get super weak and stops working, all pops affected. Poor SoF MPU probably needs work now.

    Could be a bad zero ohm resistor used as a jumper on the aux power supply, or cracked header pin.

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    #39 3 years ago
     
    DEC

    GRUMPY

    Pinside member

    10y 95,050 8,703

    You didn't replace the zero ohm resistors! Put a jumper wire across W-4 while in coil test to see if the pops work.

    power (resized).jpgpower (resized).jpg
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    #42 3 years ago
     
    DEC

    GRUMPY

    Pinside member

    10y 95,050 8,703

    I'm thinking you have 2 separate issues going on. First issue is that if you use the skirt switch you blow the TIP. Second issue is the pops don't work in coil test. You need to find the cause of the second issue first. The coils work when you ground them at the coil, how about grounding them at the TIPs? Now when I listened to your video it sounded like you put the caps in parallel, was that correct?

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    #49 3 years ago
     
    DEC

    GRUMPY

    Pinside member

    10y 95,050 8,703

    Did you check the Sip resistors before you installed them? Could they have been the wrong value?

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    #59 3 years ago
     
    DEC

    GRUMPY

    Pinside member

    10y 95,050 8,703

    Where did you purchase the fake TIPs from?

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