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Author Topic: Poker game by Cal Omega, Monitor Hookup? HELP!!!  (Read 17488 times)

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Offline rokgpsman

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #20 on: September 18, 2017, 06:52:11 PM »
The MPU also had R, G, B labeled potentiometers.

Those would be for setting the RGB drive signal levels. Those pots are often near the video output connector.
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Offline Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #21 on: September 18, 2017, 06:53:31 PM »
It looks like an original casino machine the control panel has the original coin entry and fits perfectly in the cabinet, some picture of other cal omega games look like this or similar.
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #22 on: September 18, 2017, 06:54:19 PM »
The connector connects in the top left corner of the picture that is posted with this.

And that connector has 6 wires? What is the board designation for that connector? (J102 for example)
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Offline Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #23 on: September 18, 2017, 06:55:56 PM »
It does look similar to other cal omega games and looks like an original casino machine.
Thanks,
Justin

Offline rokgpsman

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #24 on: September 18, 2017, 06:56:15 PM »
It looks like an original casino machine the control panel has the original coin entry and fits perfectly in the cabinet, some picture of other cal omega games look like this or similar.

ok, just thinking of all the possibilities.

I'm not a Cal/Omega expert, they are all 98 years old I'm afraid.   :garfield:
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Offline Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #25 on: September 18, 2017, 06:58:32 PM »
It is J205
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #26 on: September 18, 2017, 07:00:23 PM »
If that 6 wire connector is the video connector you could probably trace the Red, Green and Blue wires back to the RGB pots on the board by using a meter (multimeter with ohms/continuity function). Make notes, and this would at least have those 3 wires on the connector identified. And if one of the wires is ground that would only leave 2 other wires to identify, one is probably vert sync and the other horiz sync.
« Last Edit: September 22, 2017, 10:21:46 AM by rokgpsman »
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Offline Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #27 on: September 18, 2017, 07:04:27 PM »
What chip should I do continuity to?
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #28 on: September 18, 2017, 07:12:10 PM »
Just so that you know Tomorrow I go to school from 8:00AM to 3:00PM EST.
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #29 on: September 18, 2017, 07:20:28 PM »
Here is what I got, I have to go to bed now. :(  I will be back on in the morning.
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #30 on: September 18, 2017, 09:10:29 PM »
In your connector drawing does the "red", "green" etc labels mean the red video signal, or the color of the wire? Perhaps it means both, Cal/Omega may have cleverly used a red wire for the Red video signal, a blue wire for the Blue video signal, etc. Black is often used for a ground in DC circuits (but black is used to mean the HOT wire in a/c voltage wiring). So that would leave the orange and the yellow wire for the sync signals, vert and horiz.

I think you have enough info that you can try making a video cable connection to an LCD screen if you want to. You know which wires are the Red, Blue, Green and Ground signals. The only 2 wires not identified on your machine's video cable are the orange and the yellow wires, and they are probably the vertical and horizontal sync wires. You will need a connector or way to connect the 6 wires to the LCD video input.  When you connect them you could try connecting the orange and yellow wires one way, see if you get a display, if not you could switch the orange and yellow wires around and try again. You will need the pinout for the video connector on the LCD or whatever RGB monitor you use. Something to be aware of, some monitors use negative sync signals and some use positive sync signals. I don't know what the Cal/Omega mpu board uses, but your choice of display monitors will need to match. If that guy that sold the machine to you could let you know what display screen was in your machine that could be helpful.

In an earlier message posting shortrackskater said that another member here on NLG might have the schematic drawings for your machine. Let's see if that works out, I've gone about as far as I can for now, but if something occurs to me I will post again.
« Last Edit: September 18, 2017, 09:30:18 PM by rokgpsman »
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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #31 on: September 18, 2017, 09:48:20 PM »
 This is just a guess. But, if you look at the IC in position U34 it will be marked HS & VS on either side. I would try to trace those two wires back to one of those legs. If they go there it's a good bet that it's your horizontal and vertical sync.

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #32 on: September 19, 2017, 04:22:08 AM »
This is just a guess. But, if you look at the IC in position U34 it will be marked HS & VS on either side. I would try to trace those two wires back to one of those legs. If they go there it's a good bet that it's your horizontal and vertical sync.
Thank you but, neither of the unlabeled connections have continuity to hs and vs on u34.
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #33 on: September 19, 2017, 04:23:48 AM »
In your connector drawing does the "red", "green" etc labels mean the red video signal, or the color of the wire? Perhaps it means both, Cal/Omega may have cleverly used a red wire for the Red video signal, a blue wire for the Blue video signal, etc. Black is often used for a ground in DC circuits (but black is used to mean the HOT wire in a/c voltage wiring). So that would leave the orange and the yellow wire for the sync signals, vert and horiz.

I think you have enough info that you can try making a video cable connection to an LCD screen if you want to. You know which wires are the Red, Blue, Green and Ground signals. The only 2 wires not identified on your machine's video cable are the orange and the yellow wires, and they are probably the vertical and horizontal sync wires. You will need a connector or way to connect the 6 wires to the LCD video input.  When you connect them you could try connecting the orange and yellow wires one way, see if you get a display, if not you could switch the orange and yellow wires around and try again. You will need the pinout for the video connector on the LCD or whatever RGB monitor you use. Something to be aware of, some monitors use negative sync signals and some use positive sync signals. I don't know what the Cal/Omega mpu board uses, but your choice of display monitors will need to match. If that guy that sold the machine to you could let you know what display screen was in your machine that could be helpful.

In an earlier message posting shortrackskater said that another member here on NLG might have the schematic drawings for your machine. Let's see if that works out, I've gone about as far as I can for now, but if something occurs to me I will post again.
The Red Blue and Green marked wires are the one for the potentiometer. and Ground goes to ground. By video connector would you mean vga
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #34 on: September 19, 2017, 05:31:22 AM »
Not sure about the vga connector, it has about 15 pins, don't know if you could use just 6 of them for your purpose. Don't some LCD displays have RGB inputs? That's a different method of getting video signals into the display. For a display monitor I don't think an RGB video input is the same as a VGA input, although there may be a way to make it work. Someone that has done a conversion to a machine to change the display to an LCD might know. That's why I said earlier if the guy you bought it from could at least say what kind of display was in it you'd have an idea. I don't want to guess and steer you in the wrong direction.


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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #35 on: September 19, 2017, 05:35:15 AM »
This is just a guess. But, if you look at the IC in position U34 it will be marked HS & VS on either side. I would try to trace those two wires back to one of those legs. If they go there it's a good bet that it's your horizontal and vertical sync.

Thank you but, neither of the unlabeled connections have continuity to hs and vs on u34.

There may be some parts (capacitors, other ic's, etc) on the mpu board that are connected between the VS and HS outputs of u34 and the yellow and orange wires on your connector. U34 may be where the sync signals are made but the signals may need to go thru other components before going off the board in the yellow and orange wires.

That's why the schematic drawing for your mpu board would be very helpful.

Can you read the writing on the back of u34 and post it, that way we can get info on that chip. The photo is not clear enough to read it.

Just to make sure I understood what you said earlier, there is no other circuit boards inside the machine? It only had this mpu board and a gray power supply box, plus that large transformer in the bottom of the machine? Does this transformer wiring connect to anything, or has it been disconnected and the gray power supply is taking its place? Also, all those pushbuttons on the front of the machine, where do the wires from all of them connect to?
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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #36 on: September 19, 2017, 11:48:45 AM »
Component video use three separate connectors for rgb.Right now I am on the bus but I think the output of the bottom transformer goes the the mpu and the grey after market power supply

Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #37 on: September 19, 2017, 12:27:05 PM »

610asthe u34 chip is sn74ls86an
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #38 on: September 19, 2017, 04:02:29 PM »
Ok, I am really stupid but the big buck hunter machine i got really big one. had the same connector on the crt and it also had a pinout next to it, Sorry for wasting your time. Also I need just a tiny bit more help. I connected the video connector to a vga connector with wires and it gets the video signal but says it can display it. I figure it is too low resolution for an LCD monitor.
Thanks,
Justin

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Re: Poker game by Cal Omega, Monitor Hookup? HELP!!!
« Reply #39 on: September 19, 2017, 04:45:33 PM »
Might you need a VGA to LCD converter since this game at one time might have had a CRT monitor?
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