monitor iq = 0. capcom bowling to 60 in 1 = scrambled video

milkit

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monitor iq = 0. capcom bowling to 60 in 1 = scrambled video

I have a cabinet that is one someone home built. It has a wells gardner 19" monitor that looked brand new. it had a capcom bowling PCB in it, worked perfect.

I removed the capcom bowling pcb and sold it, popped in a 60 in 1 icade. I have adjusted all the pots back and forth and just cant get a picture! Its nothing but scrambled nonesense. I can make out what it is only because i know what the 60 in 1 is showing.

I really have never dealt with a standard res before and havent ever had a problem like this. Its driving me crazy. The 60 in 1 board is fine, test in another cab and by vga and works perfect. I dont have the capcom bowling anymore, but when i removed it and tried this then, i put it back in and again it looked perfect.

What am i missing?
 
What monitor is this? Wells Gardner made a lot of monitors. If it's a WG4600 (the one with the vertical cards in it), it probably needs the sync adjustment tweaked. It's a little square coil with a screwdriver slot in it, and it's flat on one of the cards. It's L351, IIRC.

If it's another monitor, then it could be something else.

-Ian
 
What monitor is this? Wells Gardner made a lot of monitors. If it's a WG4600 (the one with the vertical cards in it), it probably needs the sync adjustment tweaked. It's a little square coil with a screwdriver slot in it, and it's flat on one of the cards. It's L351, IIRC.

If it's another monitor, then it could be something else.

-Ian

not really sure. just saw the wg logo. ill check!
 
http://www.hardmvs.com/manuals/wg-k7000.pdf

looking at this, i have no connection/wires/pots connected to the -+v sync and -+h sync pins right next to the rgb/ground pins. would that be what needs to be adjusted? How the hell can I adjust it?

A sync signal is required to get a stable picture. Is a sync hooked up when you have Capcom Bowling working?
 
Is the card set to VGA mode or CGA mode?

Cga, but I've tried both out or curiosity

A sync signal is required to get a stable picture. Is a sync hooked up when you have Capcom Bowling working?

I have the first five pins attatched. Rgb sync and ground, but then that pdf shows a space and more syncs and I dont now and didn't before have a connection there
 
Monitors have both positive and negative sync inputs, so expect to see unused positive sync inputs. Jamma games use composite sync, so you'll have red, green, blue, ground and sync on the connector.

Of course, the thing is, that Capcom Bowling is Jamma, and so is the 60 in 1, so you would not have had to disconnect anything from the monitor - everything should be hooked up right.

I don't know anything about the 19k7689 in terms of what controls do what - I've never even seen one. Way too new. I'll have to look up the manual.

Do you have a picture of the "scrambled nonsense"? That would really help determine what needs to be adjusted.

-Ian
 
Monitors have both positive and negative sync inputs, so expect to see unused positive sync inputs. Jamma games use composite sync, so you'll have red, green, blue, ground and sync on the connector.

Of course, the thing is, that Capcom Bowling is Jamma, and so is the 60 in 1, so you would not have had to disconnect anything from the monitor - everything should be hooked up right.

I don't know anything about the 19k7689 in terms of what controls do what - I've never even seen one. Way too new. I'll have to look up the manual.

Do you have a picture of the "scrambled nonsense"? That would really help determine what needs to be adjusted.

-Ian

im at work at moment, ill take one this afternoon, but it looks a lot like this
IMG_2713.JPG
 
For that monitor, with the connector on the right edge of the chassis, you need to have your video connected like this for the 60-in-1 set to CGA:

Front to back:

Red
Green
Blue
Ground
Empty
Empty
Key
Empty
Empty
Sync (negative horizontal if you have more than one to choose from)
 
Awesome! I think that is a solution! That pdf I posted is identical and I'm only using the pins closest to front which includes the + horizontal sync

For that monitor, with the connector on the right edge of the chassis, you need to have your video connected like this for the 60-in-1 set to CGA:

Front to back:

Red
Green
Blue
Ground
Empty
Empty
Key
Empty
Empty
Sync (negative horizontal if you have more than one to choose from)
 
Yeah, and you've only got blue, which tells me you have the video plugged in wrong too.

-Ian

That pic isn't my monitor I just meant the choppy look is what mine is doing. The rgb and ground are for sure I'm right position, the sync is def.wrong if it needs to be at negative horizontal
 
Just so you know, I had a Capcom bowling PCB for a time, and I was able to get that board to lock sync with lots of different monitors - Electrohome G07's, Wells Gardner 19K49xx, 19K46xx, 19K7302, 19K7xxx, and a Disco 19 inch monitor.

Interesting thing was that although the JAMMA setup calls for composite negative sync (which is basically plugged into the LAST pin in the 'extra row of 3'), I was able to lock in sync with my Disco monitor using the postitive sync pins too. I know this because my Disco did not have any pins mounted on the PCB for the negative sync, so I had no choice but to use the positive sync.

Now I can't tell you whether or not it was the Disco monitor automatically switching sync to accommodate for the JAMMA negative sync signal or not, but I DO know that my Capcom Bowling PCB had a jumper switch to change the sync line from positive to negative. My Disco worked no matter what way that switch was set. Does your 60 in 1 have a switch like that?

If your image resembles the one you posted, then you do have a sync issue. Not to sound defeatist, but be prepared to give up on this monitor if you can't get it to sync with that board. Not all monitors play nice with all boards.

I'd say get another known working arcade monitor and see if you can get it up and running with that. If you can lock it in on say, a G07, then you can be assured that it's not an issue with the board's video feed. Plus you can also remember how it was plugged in on the G07 and duplicate the same connections on your other monitor.
 
Now I can't tell you whether or not it was the Disco monitor automatically switching sync to accommodate for the JAMMA negative sync signal or not, but I DO know that my Capcom Bowling PCB had a jumper switch to change the sync line from positive to negative. My Disco worked no matter what way that switch was set. Does your 60 in 1 have a switch like that?

yeah i do remember that switch now that you mention it. After work today ill try changing it from the positive position its at now to the negative and then go from there. the 60 in 1 doesnt have a switch like that
 
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