Clanger's latest activity

  • Clanger replied to the thread Amplifone Fireworks.
    I took measurements on the power brick and getting: Pin 1-3 14VDC Pin 6-7 18.4VAC Pin 8 7VAC Pin 9 4.7VAC Pin 10 14VAC Pin 11...
  • Clanger replied to the thread Amplifone Fireworks.
    The plot thickens.... The pot at R8 does register resistance change when tested with the DMM, but turning it does not affect any...
  • Clanger replied to the thread Amplifone Fireworks.
    • IMG_8144.jpeg
  • Clanger replied to the thread Amplifone Fireworks.
    On the vector board between the +5V test point and the nearest ground test point
  • Clanger replied to the thread Amplifone Fireworks.
    Test results at the test points on the vector board are: 12V is 12.1V 5V is 6.98V X is 1.073VDC and 1.617VAC Y is -0.89VDC and...
  • Clanger replied to the thread Amplifone Fireworks.
    Amazing amount of advice, thank you. No, I have not tested the game board voltage - this is why I was starting to question the voltage...
  • Clanger replied to the thread Amplifone Fireworks.
    Thanks all for the suggestions and replies. Thai board is a mystery for sure. It may not even be the board that's the problem, but more...
  • Clanger replied to the thread Amplifone Fireworks.
    Sure did! I noticed the leg positions were backwards on the schematic vs the replacements and did reverse install them. No idea why the...
  • Clanger replied to the thread Amplifone Fireworks.
    Bought locally through an electronics shop. No concerns but yes, I did order BU406Ds from eBay and as you mentioned, they were...
  • Clanger reacted to HudsonArcade's post in the thread Amplifone Fireworks with Like Like.
    50VAC (CT) comes directly from the transformer block... Rectified and "filtered" on the deflection board to get +/- ~35VDC HV board...
  • I'm at a loss. The deflection board has been rebuilt with new caps, all new transistors and voltage regulators, upgraded diodes and no...
  • Clanger replied to the thread FS Parts: Take a look inside...
    I ordered some of them as well and they don't test as 'D' either
Back
Top Bottom