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AS-80 Lower Monitor

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Adsense Classic 1

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  • AS-80 Lower Monitor

    No picture. Swapped main board to good monitor. The main board is good. Put good board in Bad monitor and still no picture, Is there away to check just the monitor (tube). There's 3 other components for monitor. Small board with fuse ( fuse good), HV transformer, transformer that goes to small board. So I need to replace component one at a time because tube may be good?

  • #2
    Try swapping small board, it is power supply.
    Brent V
    Hi-tech Repairs-Duck tape & ty raps

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    • #3
      Swapped both monitors with good small board, good main board and good transformer that goes to small board. Tubes didn't work. So either the HV transformer with red wire that goes to tube is bad or tubes are bad. Thanks for your time Brentman 1.

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