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Author Topic: Universal slot machine 50 code  (Read 7313 times)

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Offline newkid3

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Re: Universal slot machine 50 code
« Reply #20 on: February 13, 2016, 01:49:19 PM »
Uniman here are the pic of sound chip and dip switches.

Offline UNIMAN

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Re: Universal slot machine 50 code
« Reply #21 on: February 13, 2016, 04:54:16 PM »
Your sound chip, 0822, is the basic sound chip, no reel spin sound.

Now, your dip switches on the daughter board (SDS3) are really messed up!!

Turn ON dips 1,2,3 to get maximum credit meter limit of 2500 coins.
Dip 4 gives you a choice. If you want all wins to go on the credit meter then turn ON. Or you can turn it OFF and wins will payout by hopper unless you push the cashout button first before incerting coins.
Leave Dip 5 ON (it looks to be ON in the pic) it is for black coin optics, OFF for grey coin optics.
TURN DIP 6 OFF!!!! This is why your hopper is overpaying, not the solenoid like I first thought. OFF for standard hopper, yours is standard. ON for red plactic high speed hopper.
Dip 7 ON for black optics on the handle mech., OFF if the handle optics are Grey.
Dip 8 ON and you can just hit MAX Bet to start the game, or OFF and you have to hit SPIN in addition to Max bet or Bet one.

ALWAYS PERFORM A CLEAR after changing any dip position. (press black button on board while turning the machine on)

Jim

Offline newkid3

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Re: Universal slot machine 50 code
« Reply #22 on: February 14, 2016, 10:32:58 AM »
Thanks for that info uniman. Is there anyway i could get a different sound chip or maybe a copy of the roms so i would have reel spin sound. Is this even possible on this machine?

Offline UNIMAN

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Re: Universal slot machine 50 code
« Reply #23 on: February 14, 2016, 11:25:17 AM »
Early Universals had no reel spin sound. It depends on System Chip version. I believe yours should support reel spin sound. As I recall it is an 8933 system chip.
I emailed you more details.

Jim

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Re: Universal slot machine 50 code
« Reply #24 on: February 17, 2016, 02:06:26 PM »
Uniman i turned all the dip switches like you said and everything works like i want. Except the hopper is still overpaying coins i have dip 6 set off. I opened the door then i pulled both the cherry switches out. Then i turned the door key so it thought door was closed. I played coins until i won something. I watched the hopper and the selonoid never does anything the hopper just keeps spinning then it gives the 31 error. I done this a few times. Sometimes there will be a coin stuck or just setting there. I will have to knock that coin out before i can reset the error. It is like the coil is not working or not being told to work. Do you have any idea what i should do next? Thanks

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Re: Universal slot machine 50 code
« Reply #25 on: February 17, 2016, 03:02:00 PM »
Jim, hope you don't mind!

you don't have to wait for a winner to see the hopper work! open the door "code 50"   now use the "green test switch" to  advance to the hopper test. push it 4 times,  watch the display, you will see the number change each time you do this, test 4 is the hopper test, it will turn on the hopper and count out 10 coins, if it fails , press the yellow reset switch and try again.  if the solenoid doesn't engage, I would remove the back cover on the hopper and inspect the everything, check the wiring,see if you can manually push the plunger on the solenoid, etc.  the "red test switch" will put credits on the machine so you can test it while the door is open.



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Offline newkid3

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Re: Universal slot machine 50 code
« Reply #26 on: February 17, 2016, 03:56:32 PM »
Thanks Jim, i did that and it pays out to many coins every time. I can push the plunger on the selonoid real easy. Not stuck or anything. The back cover is missing on the hopper. Most of the wires have been put together with wire nuts. Some of them i can tell they are hooked up right. I have no idea if the others like to the selonoid is right or not.

Offline UNIMAN

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Re: Universal slot machine 50 code
« Reply #27 on: February 17, 2016, 05:28:10 PM »
Jim, hope you don't mind!

Why would I ever mind!! Thanks!!

Offline UNIMAN

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Re: Universal slot machine 50 code
« Reply #28 on: February 17, 2016, 05:37:43 PM »
Uniman i turned all the dip switches like you said and everything works like i want. Except the hopper is still overpaying coins i have dip 6 set off. I opened the door then i pulled both the cherry switches out. Then i turned the door key so it thought door was closed. I played coins until i won something. I watched the hopper and the selonoid never does anything the hopper just keeps spinning then it gives the 31 error. I done this a few times. Sometimes there will be a coin stuck or just setting there. I will have to knock that coin out before i can reset the error. It is like the coil is not working or not being told to work. Do you have any idea what i should do next? Thanks
This is not making sense.
If the coil never works than coins are never payed out. The hopper and coil are energized together, than the coil deenergizes to stop coins from paying out. So when there is overpay, the coil energizes, drawing in the coin deflector, and then never releases.
Did you perform a RAM reset after changing the dips? MUST be done.

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Re: Universal slot machine 50 code
« Reply #29 on: February 17, 2016, 07:14:56 PM »
I did perform the ram reset. The hopper will pay out coins but the coil never moves. Where is the coil suppose to be when the hopper is in idle mode? Is it suppose to be in or out? Here is a pic of where my coil always stays.

Offline UNIMAN

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Re: Universal slot machine 50 code
« Reply #30 on: February 17, 2016, 09:26:59 PM »
There's your problem!!!
Your missing a spring that holds the solenoid "plunger" out when not energized. The spring is the same size as the other spring in your pic.

Look at the first pic, it is your hopper, I circled in red where spring goes.

Look at second pic, my hopper with spring. A little blurry but you can see it.

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Re: Universal slot machine 50 code
« Reply #31 on: February 18, 2016, 07:31:26 AM »
Thank you uniman. I got up this morning and looked at that pic of the hopper again thinking something must be missing. I noticed the hole and the notch in that metal bracket. I went here to ask the question and you had already answered it. Thanks again all.

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Re: Universal slot machine 50 code
« Reply #32 on: February 19, 2016, 09:37:52 AM »
Ok i got the spring and have it put on. There is still a problem. The coil will never pull in. I am afraid the wiring is hooked up wrong. Is there anything out there that will show the wiring for inside the hopper. I know the coil works. I put 100v ac to it from a isolation transformer and it pulled in fine. Thanks

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Re: Universal slot machine 50 code
« Reply #33 on: February 19, 2016, 08:24:21 PM »
It could be you have a bad relay board. Would make sense why someone had all those wires apart.

To check wiring, turn the machine upside down and look at the relay board. First wire coming out of it is dark blue, This goes to the solenoid.
Second wire next to it is white and goes to motor.
Third wire also white, comes from the connector on top of the hopper. (incoming wire)
Forth wire, also white (maybe pale yellow, mine looks white) goes to solenoid.

Look at my pic below.

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Re: Universal slot machine 50 code
« Reply #34 on: February 19, 2016, 08:32:48 PM »
Thanks, If it is a bad relay board could it be rebuilt or would it have to be replaced? If it has to be replaced where could i find one?

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Re: Universal slot machine 50 code
« Reply #35 on: February 20, 2016, 09:19:13 AM »
Thanks, If it is a bad relay board could it be rebuilt or would it have to be replaced? If it has to be replaced where could i find one?

Not sure where to get one or get one fixed. I'm sure they are repairable as just a simple relay board.
Do you have a Uni manual? There is a schematic for it in the manual. See below.

Also, the mpu sends a signal (ground) for the solenoid and motor that are separate. It is possible the mpu could be the problem too!

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Re: Universal slot machine 50 code
« Reply #36 on: February 20, 2016, 12:07:21 PM »
Well, I might have found your problem. How, you might ask?
Because I have the same problem!  :hissyfit:

I rarely turn my machines on anymore. And I can't remember the last time I cashed out credits. Usually I open the door and take coins from the hopper. So this morning I ran test 4 and the solenoid never energized. What the hell! So I swapped mpu boards from my other machine and ran test 4. No problem, coins dispensed.
Put the original mpu back in and pulled the hopper connector and put my meter on the pink and yellow wire pins. (Set at 10vdc scale) Turned machine on and ran test 4 and saw no voltage. Then went from pink to brown, ran test 4 and saw the 5vdc. The pink to yellow should show 5vdc for the solenoid and the pink to brown did show 5vdc for the motor. So problem for me is on the mpu board.
Looking at schematic it looks like either the IC chip at 9D or 6H.

If you have a multi-meter you should check the outputs from the mpu. Pull the hopper connector, then turn the machine on. Set your meter to 0-10vdc, hot lead to pink wire in connector and ground lead to yellow wire in connector. Press test 4 and look for 5vdc. Same with pink and brown wire. Should see 5vdc for motor.

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Re: Universal slot machine 50 code
« Reply #37 on: February 20, 2016, 01:19:04 PM »
You have got to be kidding. We just done the test you told me to do. We get the voltage with pink and brown but we get no voltage with pink and yellow. So i guess it is on the cpu board. Are you going to try to fix yours? You said 9D or 6H right?  Thanks

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Re: Universal slot machine 50 code
« Reply #38 on: February 20, 2016, 03:28:58 PM »
I also ran the pink to yellow wire test on the good board and saw the 5vdc. (just to make sure I wasn't missing something)

I'm in no hurry to fix mine as I rarely use the hopper for cashout. And I'm no board repairman. I may try to test the mpu board in the machine and see if I can find which ic is the problem. Just to know.

Below is two sections of the output schematics. Traced it on my board to verify. Both the motor and solenoid come out of 9D to the edge connector. 7H outputs the motor to 9D and 6H outputs the solenoid to 9D.

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Re: Universal slot machine 50 code
« Reply #39 on: February 20, 2016, 04:57:34 PM »
The story takes another turn.
Earlier I told you DIP 7 to be ON for black handle optics, I was wrong, it should be OFF for this version of Master chip and Dip 7 is for the hopper!!

I have an old spare board in the garage, haven't touched it in years. So I put a new battery on it, remove all the chips from suspect board and remove the SDS3 daughter board and put them on the spare board. Install it in the machine, perform a RAM clear and it fires up. Run test 4 and no solenoid activity again!
So I take a look at the daughter board (with glasses on)and dip 7 is not all the way off like it should be. Looked good from a distance but not all the way off. So I make sure it is off and perform a new ram clear. Everything works fine. Test 4 working ok. So it was the daughter board that was the problem. Seems like about a year ago I tested a high speed hopper in this machine and thought I set that dip back to off. Pretty sure suspect board is ok.
There is no solenoid on high speed hopper so this curcuit not used when dip 7 is ON.

Sooo, check that daughter board again.
Make sure dip 7 is OFF. Make sure daughter board is in socket 1A correctly.
Perform a RAM clear at startup.
And see what happens.

Another note; when dip is ON there is about 1ohm across the dip and when OFF, 4 ohms.
« Last Edit: February 20, 2016, 05:12:41 PM by UNIMAN »

 

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