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Peavey VK100 no power to tubes!

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  • Peavey VK100 no power to tubes!

    This is a Peavey ValveKing 100. No pilot light or tubes lighting up. Worked fine one day and not the next. All external and internal fuses check OK.Please Help.

  • #2
    Originally posted by retrorod View Post
    This is a Peavey ValveKing 100. No pilot light or tubes lighting up. Worked fine one day and not the next. All external and internal fuses check OK.Please Help.
    Peavey_Valveking_212.pdf

    Check AC volts across power transformer primary (or across C214). If not there check power outlet, cord, switch and fuses again.

    If OK, check power transformer secondary for AC volts between P209 and P210. If nothing the power transformer is probably dead.
    Experience is something you get, just after you really needed it.

    Comment


    • #3
      The heaters are in series on this amp and this is a a common problem, if the ribbon cable is bad or one of the tubes is open, nothing will work, or light up.

      Comment


      • #4
        Pilot light works off AC from low voltage heater supply bridge rectifier D206-D209. Check the AC leads from the transformer and make sure you have AC voltage there going to the bridge rectifier and DC voltage coming out. Maybe a bad power transformer if no fuse blew there. Make sure all the ground paths there are good though connectors or ribbon cable.

        Comment


        • #5
          Thanks everyone!!!
          Turned out to be faulty solder connections from the PCB mounted power cord connector.....DUuuuhh!

          Comment

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