Sync problem with 20ez

dirt

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Choasjohn and I were trying to hook up a known working Nintendo monitor in my wwf game. I would not sync no matter what we did. We hooked up the same monitor to my other jamma cab and it works perfect. WHAT THE HELL AM I MISSING?
 
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You're missing the Horizontal frequency knob right behind the flyback that needs to be slightly adjusted. It's really hard to see, it sticks straight up off the chassis, between the flyback, and the video connector. Look for it for a little bit and you'll see it, it's white like the rest of the knobs.
 
That was the first thing I tried. It didn't help at all. all it did was make the picture more scrambled or less scrambled.
 
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ive been trying to upload the picture but i keep getting a internal server error message. anyway here is more info on what is happening.
john has a 20ez monitor and it would not work in one of his cabinets so he tried 3 different machines all with the same result, wont sync up. he has a nintendo inverter and a mikesarcade inverter. the nintendo inverter diplays a picture but it is way out of sync and has a rainbow effect from top to bottom. so he brought the monitor over here yesterday and we hooked it up to my 19in1 machine and the monitor works perfect though the nintendo inverter but the mikesarcade inverter does not display a picture. so we think we are golden. so we decide to hook it up to my other jamma machine,wwf, and bam no sync no matter what we do. change the video cable, nothing, adjust the pots, nothing, switch inverters, nothing. we even put the 19in1 board in the wwf cabinet, nothing. hook the monitor back up to the 19in1 machine and it works perfect again.

john said it didn't work in any of his machines. what would cause it to not work in 4 machines but work in 1 perfect?

edit we also plugged the monitor into the nintendo power supply in my 19in1 cabinet while the video signal was coming from the wwf and still nothing so that rules out the power to the monitor. we are both scratching our heads on this one.
 
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To add to what we tried... Dirt suggested that maybe I had the pins reversed on my adapter cable (to go from .197 monitor connector to .100 monitor connector (or whatever size Sanyo monitors are)). So we pulled all the wires and reversed them. Still no real synched image. Just a different mess.

And to add more detail:

Cabinet 1 (that worked): JAMMA Harness, someone had cut off the monitor connector and hacked in a Sanyo sized connector with the pins in Sanyo order (green-red-blue-ground-ground-sync). We plugged that conncetor into the inverter on a Sanyo monitor outside the cabinet (plugged into a 100 V power source of course). Perfect image with no adjustment

Cabinet 2 (didn't work): JAMMA Harness. I made an adapter cable to map the standard r-g-b-ground-sync-sync Wells-Gardner sized monitor connector to a g-r-b-ground-ground-sync Sanyo sized monitor connector. We plugged that into the same inverter of the same monitor. No synch. You could see that the arcade image was kinda there, but it was all the wrong colors and all out of sync.
 
To add to what we tried... Dirt suggested that maybe I had the pins reversed on my adapter cable (to go from .197 monitor connector to .100 monitor connector (or whatever size Sanyo monitors are)). So we pulled all the wires and reversed them. Still no real synched image. Just a different mess.

And to add more detail:

Cabinet 1 (that worked): JAMMA Harness, someone had cut off the monitor connector and hacked in a Sanyo sized connector with the pins in Sanyo order (green-red-blue-ground-ground-sync). We plugged that conncetor into the inverter on a Sanyo monitor outside the cabinet (plugged into a 100 V power source of course). Perfect image with no adjustment

Cabinet 2 (didn't work): JAMMA Harness. I made an adapter cable to map the standard r-g-b-ground-sync-sync Wells-Gardner sized monitor connector to a g-r-b-ground-ground-sync Sanyo sized monitor connector. We plugged that into the same inverter of the same monitor. No synch. You could see that the arcade image was kinda there, but it was all the wrong colors and all out of sync.

Would it be safe to assume that it is the cable itself? I could take a picture of the cable adapter I made for my single monitor PC10 going from a WG to a Sanyo if you like..
 
Would it be safe to assume that it is the cable itself? I could take a picture of the cable adapter I made for my single monitor PC10 going from a WG to a Sanyo if you like..

We tried 2 different cables. Both worked on the 19in1 cabinet. Both got no sync in the wwf cabinet.
 
Would it be safe to assume that it is the cable itself? I could take a picture of the cable adapter I made for my single monitor PC10 going from a WG to a Sanyo if you like..

Sure... Post away. I don't think it's the cable though, unless i have a gross misunderstanding of the order of the pins.
 
I just saw this post now - If it worked on the 19 in 1 then your right, can't be.

I mean, it would seem that it's the WWF board no? Maybe the sync is different on that board compared to the multi's? (pos or neg) I really don't know enough about WWF and I sold the only one I had.

When I get home I will post a pic for giggles anyway.
 
Maybe Dirt didn't make it clear. It was a WWF cabinet, which is JAMMA, but we tried using the same 60in1 PCB that worked in the other cabinet
 
I just saw this post now - If it worked on the 19 in 1 then your right, can't be.

I mean, it would seem that it's the WWF board no? Maybe the sync is different on that board compared to the multi's? (pos or neg) I really don't know enough about WWF and I sold the only one I had.

When I get home I will post a pic for giggles anyway.

We put the 19in1 board in the wwf cabinet and it would not sync.
 
here is the picture of what the monitor looks like in the "bad" cabinet. i would just figure the wiring is messed up in the wwf cabinet but the game works 100% with the g07 in it. john said it did the same thing in 3 of his working cabinets too.
 

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