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RCA VCR power supply cross ref parts help VR604HF

Discussion in 'Electronic Repair' started by George, Jan 28, 2004.

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  1. George

    George Guest

    I am using a VR510 power supply out of my bedroom VCR in my VR604HF
    I can't find specs or cross ref on these parts

    VR604HF RCA power supply
    4N3DL200 Diodes 3 lead board shows anode and cathode don't know
    what third lead is for both show shorted

    C5039F 447 3 lead

    40240 2 lead diode some show shorted

    Display started to fade, then would work OK, hit play button and
    display would fade and blink, now dead. fuse OK

    I have removed and checked all electrolytics
    Any advice appreciated
  2. Don't know how you checked the caps, but the caps on the secondary side are
    still the leading suspects. Replace also the 22uF bipolar and the 4.7 250v
    on the primary side.

    Mark Z.
  3. George

    George Guest

    Just checek them with the old analog meter on the 10x ohm. Will go
    ahead and replace as many I can find replacements for.
  4. Yeah, ohmmeter checks are inadequate here. An ESR meter is needed as well.
    In a functioning supply, an oscilloscope can be used to view the noise
    riding on a DC level.

    Mark Z.
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