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Museum of the Game® & International Arcade Museum® Forums
Hi all,
I recently came into possession of a freshly recapped k7000 25" monitor screened p538. After throwing it into a sunset riders cabinet (with a composite sync daisy changed through the last two pins of p1.) I encountered the issue that can be seen in the screen image attached. The tearing and degree of failure to hold the horizontal component of the picture is relatively unstable over the attract mode intro and the monitor in question has no noticeable bad solder joints. I have followed the flow chart and checked C22 and the transistor at Q7, both testing good. My IC2 is socketed and I assume it has been replaced but have yet to test the component. I have ordered one regardless. I am unsure if I have my composite sync signal wired correctly as the flow chart suggested ensuring my negative composite sync signal was only attached to pin 3 on p2 and sunset riders as a game does not communicate the nature of the composite sync signal. I am thinking it is possible that my composite sync is in fact negative and should be at that location. I would appreciate any assistance in identify possible causes and solutions to this problem. I have images of the circuit available on request.
Thank you