I got a Donkey Kong machine that has been converted to 8ball action that is having a video issue.I attached a picture of what the screen looks like. I could use a little help getting this going. I want to replace the roms and turn it back into a DK but I want to make sure I can get the monitor working first.
Brief repair history.
Monitor was dead no video when I received it. F301 was blown and HOT shorted to ground.
I replaced the HOT and fuse and then I had just a thin verticle line of video on the vertically mounted monitor so I had verticle collapse.I found the trace was lifted and broken on C408 in the verticle transistor section so I repaired that and that gave me the image I have now.
I went ahead and capped it but that gave me no real change and I havent been able to adjust it to get any kind of stable image.
this is the first 20EZ I've worked on so I may be missing something obvious.
Brief repair history.
Monitor was dead no video when I received it. F301 was blown and HOT shorted to ground.
I replaced the HOT and fuse and then I had just a thin verticle line of video on the vertically mounted monitor so I had verticle collapse.I found the trace was lifted and broken on C408 in the verticle transistor section so I repaired that and that gave me the image I have now.
I went ahead and capped it but that gave me no real change and I havent been able to adjust it to get any kind of stable image.
this is the first 20EZ I've worked on so I may be missing something obvious.