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Ampeg PF-50t Schematics

Discussion in 'Amps and Cabs [BG]' started by valloti, Oct 10, 2021.

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  1. Oct 10, 2021 #1
    valloti

    valloti

    Mar 6, 2010
    Berlin, Germany
    Hey dear community!
    Just wondering if any of you would have the schematics of that beautiful head? Mine’s doing the intermittent red/blue light and doesn’t wanna work. My amp tech’s having troubles finding the problem.
    Any help would he highly appreciated!
    Cheers and have a great week!i
     
  2. Oct 10, 2021 #2
    grouse789

    grouse789 Supporting Member

    Jun 13, 2004
    Westchester NY
    beans-on-toast likes this.
  3. Oct 11, 2021 #3
    valloti

    valloti

    Mar 6, 2010
    Berlin, Germany
  4. Oct 11, 2021 #4
    beans-on-toast

    beans-on-toast

    Aug 7, 2008
    That’s the owner’s manual, not the schematics. The PF-50T schematic is only available to authorized service centers.

    Problems that I‘ve seen with the bias circuit are often related to issues with solder joints or a bad potentiometer. Stress on the shaft can break the pot’s solder joints. Resoldering often resolves the problem.
     
    Jim C and grouse789 like this.
  5. Oct 12, 2021 #5
    Randy Dees

    Randy Dees

    Mar 15, 2020
    Dripping Springs
    Send an email to Ampeg requesting the schematics with the serial number. After you promise to not give the schematics to anyone they have been known to send them.