Author Topic: Poker game by Cal Omega, Monitor Hookup? HELP!!! (Read 17601 times)

Justin · « **on:** September 18, 2017, 01:34:50 PM »

I recently found a Cal Omega poker game on craigslist the person I purchased it from said he removed the monitor for a different game. He also said that I could just put an old computer monitor in it because it used to have an LCD one. My board says "922 BOARD REV B 8200250 serial no 1053. The board is missing EPR 1 & 2. But I have no idea how to hookup the monitor. Please help me.

rokgpsman · « **Reply #1 on:** September 18, 2017, 02:36:34 PM »

The Cal/Omega machines are old enough that I'm not sure about your machine ever having an LCD monitor display. Maybe you mean that he said you could use an old CGA CRT monitor?

Can you post a few photos of your machine, especially the video cable that would go to the monitor?

Justin · « **Reply #2 on:** September 18, 2017, 04:03:35 PM »

Here are the pictures, also the connector I am only assuming that it is video because they are the only two unused.

shortrackskater · « **Reply #3 on:** September 18, 2017, 04:44:30 PM »

There's a chance it was modified for an LCD. Can you call the craigslist guy and ask? That would be great if you could put an LCD back in it but I kind of doubt it. They look great.

Justin · « **Reply #4 on:** September 18, 2017, 04:46:52 PM »

He didn't seem to know anything he just had a garage with a bunch of machines and had to clear it out.

If only I could find some type of pinout I could make a video connector

shortrackskater · « **Reply #5 on:** September 18, 2017, 04:58:15 PM »

Can you post an entire picture of your MPU board?

Justin · « **Reply #6 on:** September 18, 2017, 05:02:18 PM »

Here is the picture of the MPU

rokgpsman · « **Reply #7 on:** September 18, 2017, 05:53:11 PM »

You mentioned the missing EPR1 and EPR2 chips, I don't think that is a problem. The EPR1 thru EPR5 sockets are for eproms that contain the particular game software for the machine, like different versions of video poker, blackjack, keno, etc. If I'm remembering right not all games used all of the sockets, it depends on how many chips are in the game software. So those empty sockets are probably not used for whatever game your machine is.

I brightened your photo a little so I could see some details.

Justin · « **Reply #8 on:** September 18, 2017, 06:03:13 PM »

Thank You! Any idea on the video connector.

rokgpsman · « **Reply #9 on:** September 18, 2017, 06:09:54 PM »

Can you look on your mpu board and find the part number for it? There were a few different ones, with the part number we might find some drawing or information. Unfortunately these machines were not as widespread in their use as others like IGT and Bally so there is less info on them. That plus they are fairly old, your machine is from the early 1980's I believe, so a lot of the guys that knew something about them are gone.

***EDIT*** I reread your first message and saw that you already gave the part number for the mpu, I guess I missed that on the first reading.

Justin · « **Reply #10 on:** September 18, 2017, 06:13:41 PM »

The board is 922 Rev B, serial number 1053

rokgpsman · « **Reply #11 on:** September 18, 2017, 06:17:43 PM »

ok, I'll do some looking. Is the 922 the last 3 digits of the part number? Seems like it should be a longer number for a circuit board.

rokgpsman · « **Reply #12 on:** September 18, 2017, 06:28:08 PM »

Also, is there another circuit board inside the machine, called the "motherboard", that has several connectors? It is usually mounted vertically on the back wall. If so post a photo of it and tell us the part number on it. On many of the Cal/Omega machines the video display connector is on the motherboard.

Justin · « **Reply #13 on:** September 18, 2017, 06:37:21 PM »

Here are pictures of the complete inside of the machine. (All that is in it)

rokgpsman · « **Reply #14 on:** September 18, 2017, 06:43:05 PM »

Was the mpu board installed in the machine and had cables connected to it when you got the machine? It looks like someone added a power supply (gray box with the ac power line connection) at some time. Is there an idplate on the side of the machine?

rokgpsman · « **Reply #15 on:** September 18, 2017, 06:47:32 PM »

Quote from: Justin on September 18, 2017, 06:03:13 PM

Thank You! Any idea on the video connector.

If is is like other older Cal/Omega machines the video connector will have 3 video signals (Red, Green, Blue), and it will have vert sync and horiz sync. There is also a composite video signal on some Cal/Omega machines, it was used for composite crt displays. But I haven't found a schematic or pinout. The connector that you think is video (the one with 6 wires), where on the mpu does the other end of it connect? The unused 2 wire connector might be for power going to the monitor, like 115 vac. Where does the other end of it connect?

Justin · « **Reply #16 on:** September 18, 2017, 06:48:32 PM »

No id plate. The power supply was added because someone added an aftermarket coin door that needed 12v for the lights. The MPU was in it with wires connected an the board number also had 8200250.

Justin · « **Reply #17 on:** September 18, 2017, 06:49:40 PM »

The MPU also had R, G, B labeled potentiometers.

rokgpsman · « **Reply #18 on:** September 18, 2017, 06:51:01 PM »

Odd there is no idplate, do you see where it used to be mounted with screws or rivets? Is it possible this is a MAME or arcade cabinet that someone installed the mpu and display screen into? Or does it look like an original casino slot machine?

Justin · « **Reply #19 on:** September 18, 2017, 06:51:49 PM »

The connector connects in the top left corner of the picture that is posted with this.

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Author Topic: Poker game by Cal Omega, Monitor Hookup? HELP!!! (Read 17601 times)