double dragon 2 video issue

[kjoel0123]

I have 2- double dragon 2 boards,
1 plays with a yellow hue and the other has lines through only the characters and lines only on the right side of the screen about 1 inch wide. I have swapped all removable chips from both board with no success. Monitor works fine with my other jamma games, Any advise is greatly appreciated...  Thank you

[cw]

is there a test mode that you can put it in?


it might point you to bad roms or ram....

[kjoel0123]

Thanks  for the tip, I will test this later tonight

[kjoel0123]

I looked on the pcb, there is no test dip switch, any other ideas???

[Nipedley]

tried the test button? I think Jamma has that, I've been messing with Megatech standard so long I barely remember =)

[TravistyOJ]

One thing Ive heard to try is while the game is on, tap some of the socketed roms lightly, could be one of the ROMs legs isnt connected properly.

[kjoel0123]

Tried this with no success, I sent the  other board out for diagnosis as I am stumped, as far as the DD2 board with the yellow hue issue, I am now officially selling it for $20 plus $12 shipping, sound and controls work, just cant seem to resolve the yellow screen issue with this as I am not an expert.