Recent content by d3k

  1. Green screen on twin cobra wg-k7000

    turned both green pots, contrast, and brightness down and no change. Tried testing transistors and they all seemed to have similar reads. One thing I did notice is that I can only see some of the gameplay when the 'screen' dial is all the way down; when I adjust it up, I here a humming that...
  2. Green screen on twin cobra wg-k7000

    Swapped red and green transistors and no change. The diagram I'm working from is here: http://technical-department.servegame.com/monitor_schematic_diagrams/wells-gardner/WG-K7000.pdf I swapped Q201 and Q202 on page 18. I thought that might work but maybe I missed something. I have a...
  3. Green screen on twin cobra wg-k7000

    Disconnected video and it's still green. About to swap transistors, is it safe to do this without discharging?
  4. Green screen on twin cobra wg-k7000

    I will check the green transistor. Thanks for the advice.
  5. Green screen on twin cobra wg-k7000

    I just picked up my first machine; it has a twin cobra board and a wg k7000 vertical screen. The game seems to run fine but the screen is a bright green so it's difficult to see any of the gameplay. The previous owner checked with some repair places and they seemed to think it might be a...
Back
Top Bottom