Question N64 Pms 5 volts problem

Discussion in 'Nintendo 64' started by Pacal, Nov 6, 2019.

  1. Pacal .

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    I’ve just connect the 64 pms to my N64 but for some reason I can’t get 5 volts all I got is 1.3 volts from it, i get the 3.3 volts but no the 5, am I doing something wrong?
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  2. jefflongo Broke BitBuilt Staff Member . .

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    Is there a short on the 5v line? Do you get 5v with the 5v line on the pms disconnected?
     
  3. Pacal .

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    Now that I disconnected I don’t get any volts, I still get the 3.3v but nothing on the 5 ,i connected the two wires to the Nintendo board before the batteries and any of the two wires touched each other,I have the ps2 pms too and also I don’t get the 5 volts either,I get all the rest of the volts but on the 5v nothing
     
  4. Gman RTFDS Staff Member . . . . .

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    Did you lift the 5v pin on the 5v regulator that is on the n64?
     
  5. Gman RTFDS Staff Member . . . . .

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    Ok, it looks like you are connecting an adjustable power supply as a multimeter. You need a multimeter to measure voltage. You are connecting a power supply in parallel with the voltage regulators which will probably break it.
     
  6. Pacal .

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    I did lift the pin on the regulator, and for the multimeter I do have one it was on my right on the table, I used it too but I’m not sure if it was before the adjustable power supply.
    I tested all the volts with that and just the 5volt is the one not working on both of my pms boards ,is there a way to fix the 5volts on the board?
     
  7. Gman RTFDS Staff Member . . . . .

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    I dont understand that power supply myself but I wouldn't trust it either. You should only use a multimeter.

    If you discconnect all the output wires and only wire up battery, led, and switch. If it isn't working, then it is probably broken.
     
    Stitches likes this.
  8. Pacal .

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    so i got myself another N64pms board and this time im only using the multimeter but i got the same problem, i can't have the 5v working,i lifted the ping on the n64 regulator i've soldered every wire correctly, what am I doing wrong?
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  9. Gman RTFDS Staff Member . . . . .

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    Did you try to disconnect the 5v wire from the n64 and see if the output is there on the n64pms?
     
  10. Pacal .

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    Yes i did that first but I didn’t get the 5v i get different volts but I never get over 1v is always less and once I use the multimeter the numbers start going down
     

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