Nintendo Sharp Monitor 510YWB22 problems

[General Zod]

After a few weeks of collecting dust, I finally decided to do something with this monitor and connect her to my MAME testbench. ( if you want to call it that )  

What a beautiful picture these Nintendo monitors have. Just the overall picture alone makes me wish I could forget about the problem I've encountered. Hopefully one of you can help me decide whats awry?

One a regular jamma board, and even connected to a real ms.pac cab, the picture is perfect. Nothing is cut from the top or bottom , however, when connected to my PC and through the Jpac ... all of the games are missing a little from both the top and bottom.

I'm using AdvMAME, an AVGA, and the jpac. Any ideas on how I can get this image to fit the screen properly. Perhaps a setting in AdvMAME? I know it's not the width coil or anything monitor-wise, because she works so beautifully with the other 3 games (uprights).

Any ideas ... please?

thanks.

[Ken Layton]

Looks to me like you need to adjust the width coil as your picture is too wide.

Also, the Sharp monitor's model number is XM-2001N. The number you gave is the picture tube number.

[General Zod]

Looks to me like you need to adjust the width coil as your picture is too wide.

Also, the Sharp monitor's model number is XM-2001N. The number you gave is the picture tube number.

Thank you!

I was wondering whether or not the width coil was the problem. I had hoped it wasn't, as the other games played fine when connected to that monitor.

Adjusting the width coil from what I read, can be quite tricky. Any advice you can give from having worked on these? I would appreciate your input, and treat it like scripture.

Thanks in advance ,

Mike