Screen scrambles after I am playing for awhile

[Motaliano]

     My DKJR starts right up and looks great.  It plays just as it should but after a bit of time the screen scrambles.  If I shut it off and restart it the screen is fine.  It doesn't do it every time I fire it up but enough to be annoying.  Any ideas?

[MrHiu2]

I had a similar problem with one of my machines. It all depends on the monitor. You could check to see if the sync cables are seated, and you could check the capacitors.

[Motaliano]

Mr. Hiru,

     Thanks for the response.  I adjusted the H-Hold and that seems to have fixed the problem.  I read on Klov that the H-hold can be a bit touchy on Sanyo EZ's. 

[John's Arcade]

Mr. Hiru,

     Thanks for the response.  I adjusted the H-Hold and that seems to have fixed the problem.  I read on Klov that the H-hold can be a bit touchy on Sanyo EZ's. 

There are also some pots on the game PCB for picture position.

Those pots do go bad. The Real Bob Roberts sells replacements.

[Motaliano]

John,

     Thanks for the tip.  Knock wood the screen looks mint and I haven't had any problems since adjusting the H-Hold.  My only problem now is breaking the 60K barrier .