Recent content by bmmc

  1. Wei-Ya 2820H PWM Chip Part No???

    weiya 2820h ihave the same problem.numbers scraped off ic1
  2. wei-ya chassis source

    where can I purchase a wei-ya model 2820h crt chassis? alva amusement no longer carries crt chassis.
  3. part id

    schematic that is not the same as my chassis
  4. part id

  5. need parts id or schematic

    working on a weiya model 2820h without a schematic.r93 is burnt up.it is a 1/4 w & is located in front of d106 & t102.one side goes to neg.side of c107 & the other side goes to pin 13 of ic1.pin 13 of ic1 is burnt off.evidently pin 13 shorted to ground which burnt r93.cannot find a schematic or...
  6. part id

    could you post the schematic?
  7. part id

    r93 it is a 1/4watt &is located in front of d106 & t102.one side goes to neg.side of c107 & the other side goes to pin 13 of ic1.the paper tag on the hot & regulator heat sink says this is a 2820h chassis.2820h is also marked on the pcb board.i can't find r93 on any schematics similar to this one.
  8. part id

    need schematic for weiya model 2820h monitor.r93 burnt beyond recognizion.need the value.
  9. resister value

    wells gardner chassis 2820h.does anyone have a schematic?need value of r93.it is burnt beyond recognition.
  10. silver strike 2009

    silver strike game was playing fine & overnight went to the "no signal" display.no one was in the machine.
  11. silver strike 2009

    machine lights up but only displays"no signal" on screen.any suggestions?
  12. williams whitewater pinball

    customer brought this game in dead.there is no display or lamps lit anywhere.leds are lit but some incorrectly.at power up there is a brief burst of audio.all fuses are good.the 18v source to lamp columns is low(7v) & the 12v source is 2v.i have the operations manual & the WPC schematic...
  13. tovis mtg-1901 vertical foldover

    this monitor is kicking my butt.extreme vertical fold over.i have replaced the vertical output & signal processor ic's,esr'ed & checked value of all caps,all resistors diodes & transistors ok,no bad solder.vert. lin & vert. hold pots ok & have effect on raster.have schematic but it does not give...
  14. tovis schematic needed

    thank you will post fix
  15. tovis schematic needed

    need schemo for tovis mtg-1901c.i have bad vertical fold over.have replaced vert. output & signal processor ic's,esred all caps in vert. circuit but no change.
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