Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: ToplessZ on August 10, 2008, 02:56:54 pm

Title: WG 25K5501 Sync Issue
Post by: ToplessZ on August 10, 2008, 02:56:54 pm

I have a WG 25K5501 in a 1987 Quarterback cab.  Its works fine with the quarterback PCB(NOT jamma), but it wont sync with any jamma boards? 
The quarterback PCB uses both Neg Horiz&Vert inputs seperately.  I tried to use each individually and together with the sync on the jamma harness and no luck.

How do you sync to this monitor with a standard res jamma board?
Jamma is negative composite isnt it? 

I have a 4583 Vid Sync Sep IC, not sure how to use it though...

Title: Re: WG 25K5501 Sync Issue
Post by: ToplessZ on August 10, 2008, 03:02:23 pm

Also, I have a bootleg Ms. Pac board that has a jamma adapter on it that works fine connected to this monitor using the jamma sync connected to just the neg horz sync.

Title: Re: WG 25K5501 Sync Issue
Post by: ToplessZ on August 11, 2008, 11:29:38 am

Could this be a low res monitor?  KLOV says that quarterback is a standard res, but it seems only games made before 1990 and non jamma will work in it??

Title: Re: WG 25K5501 Sync Issue
Post by: grantspain on August 11, 2008, 11:35:44 am

standard res is low res(15khz)
do you have photos of your wiring and the problem you are getting

Title: Re: WG 25K5501 Sync Issue
Post by: Kevin Mullins on August 11, 2008, 05:04:38 pm

Quote from: grantspain on August 11, 2008, 11:35:44 am

standard res is low res(15khz)

Agreed .... the only ones lower than that are made by Crayola.

Title: Re: WG 25K5501 Sync Issue
Post by: ToplessZ on August 11, 2008, 08:04:55 pm

Well thats good to know,  then theres still hope to get this to work! 8)