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Syncrowave 250 Foot Pedal stop working

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  • Syncrowave 250 Foot Pedal stop working

    Syncrowave 250 foot pedal is not working in remote but in panel mode everything works fine. I have take the foot pedal to another welder and it works fine there. I have removed the circuit board and found that R90 burned, so I replaced R90, A4, and Q13. Serial Number JK654877 Can anyone help Thanks Mike
    Last edited by Shrad; 04-19-2021, 04:37 PM.

  • #2
    Need your serial number to be able to look a the right diagrams.

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    • #3
      Originally posted by Aeronca41 View Post
      Need your serial number to be able to look a the right diagrams.
      I asked the same question on another forum and he posted the serial number yesterday. Not sure why he didn't add it here...said it was JK654877.

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      • #4
        Have you checked the toggle switch? Simple I know but sometimes over looked. Also CR2 must engage in remote

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        • #5
          I have checked the toggle switch and it works, CR2 is energizing

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          • #6
            I checked out both sets of contacts on CR2 and both read 0.3 ohms

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            • #7
              I would check the command signal at the control board at RC6-5 in reference to RC6-4 (as shown in the attached image). If the signal makes it that far, the main board (PC1) is bad. If you don't get the 0-10 VDC at the RC6-5 connection, you need to verify that you get the 10VDC out to pins C and D of the remote 14 pin connector.
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