RCA VCR VR321 Repaired

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  • Solder Boy
    Senior Member
    • Nov 2006
    • 178
    #1

    RCA VCR VR321 Repaired

    Well it wasn't pretty but it's fixed! This particular VCR was made in 1993, I got it at Value Village as a parts machine for it's twin that I already had. One day few months ago the thing just shut right off and well I retired it.

    Anyway got bored the other day and decided to see if I could repair it, well it's a switching power supply so I took the PSU out, it had a blown fuse but I kinda figured something caused the fuse to blow.

    Stupid me I burnt the trace on one of the cap circuits, so I had a buddy fix that for me

    Turned out pretty well all of the caps were blown on the primary side, including the filter cap, it didn't even budge on the ESR meter! Had to wait a week to get some caps in for it, replaced the bad ones and the fuse. Powered it up and voila it worked.

    First time I've tackled something besides a computer capacitor wise!
    www.bcrelectronics.ca
    Tags: None
    • PCBONEZ
      Grumpy Old Fart
      • Aug 2005
      • 10661
      • USA
      #2
      Re: RCA VCR VR321 Repaired

      They are everywhere.
      I even fixed a hot tub with bad caps once.
      Mann-Made Global Warming.
      - We should be more concerned about the Intellectual Climate.
      -
      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
      - Dr Seuss
      -
      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
      -

        Comment

        • Krankshaft
          Badcaps Legend
          • Jan 2007
          • 2328
          • USA
          #3
          Re: RCA VCR VR321 Repaired

          If the meter didn't even register their ESR then it was probably either out of it's measuring range or the cap was shorted the Blue ESR meters maximum is 99 ohms.
          Elements of the past and the future combining to make something not quite as good as either.

            Comment

            • Solder Boy
              Senior Member
              • Nov 2006
              • 178
              #4
              Re: RCA VCR VR321 Repaired

              Oh the big filter cap was shorted alright... some of the other ones read 20 or 30. Had my buddy confirm the filter cap was shorted because he gave me an identical cap to repair it and it read fine on the ESR meter.
              www.bcrelectronics.ca

                Comment

                • Toasty
                  Badcaps Legend
                  • Jul 2007
                  • 4171
                  #5
                  Re: RCA VCR VR321 Repaired

                  A shorted cap will read "00" on BESR and also show zero an ohmmeter (same as touching test leads together). An Open or too high will read "-" on BESR or not move on ohmmeter with leads in either polarity.

                  The cap may have shorted and then went open. Could be what took out the fuse.

                  Good job!
                  veritas odium parit

                    Comment

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