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**Reel Slots** Gaming Machines => Universal Reel/Video Games => Topic started by: newkid3 on February 09, 2016, 10:19:41 PM

Title: Universal slot machine 50 code
Post by: newkid3 on February 09, 2016, 10:19:41 PM
I have a universal model Y90 double jokers wild machine. The things i am having problems with is. The 50 error code (door open) stays on the machine all of the time. It will not clear. I can shut the door and put quarters in the machine and push the spin button or pull the handle. The reels will spin and stop. If it hits a win it will pay it in credits. I can play it like this forever with the 50 error code on the machine the whole time. Any time i ring up credits and hit the cash out it just clears them. I read where if there is a 50 code you have to play a game to clear it and that you will not actually win if you hit something. I guess that is why it will not pay out coins is because it is not a real win. I need to know what will cause the 50 error code to stay on all the time. I also noticed that all sounds work accept the reel spin sound. I also need to know what would keep the reel spin sound from working. The sounds i know work. Coin in, reel stop, win, door open tone every 2 minutes door open or closed even when playing the game. I would appreciate any help. I also have a sensor of some kind hanging from the door. I will try to post some pics.
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 09, 2016, 10:29:32 PM
A pic of machine
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 09, 2016, 10:41:30 PM
A pic of sensor i spoke of.
Title: Re: Universal slot machine 50 code
Post by: Jim on February 10, 2016, 07:48:31 AM
the door open "50 code"  could be caused by the door lock switch not working, or the white cherry switch not working or being mis-wired.  there are a red and green button located on the meter panel, right side of the reel bundle,  with the door open ,you should be able to press one of them and put a credit on the machine, the other will take you through the test menus.  these buttons only work with the door open,  the white cherry switch is a three way switch, pushed in (as when the door is closed) and pulled out with the door open are the same position. middle position (idle) when door open and the plunger in neither in or out.  Idle position is when you should be able to use the test buttons, not either of the two other positions. If this switch is working correctly then the lock door switch is probably causing your problem. 

the sensor you pictured is one of two IR optics,  there should be an upper set right under the coin comparitor, and a lower set that is mounted to detect coins going to the over flow chute, that is probably the set that is in your picture.

Hope this helps

Jim
Title: Re: Universal slot machine 50 code
Post by: Jim on February 10, 2016, 07:53:41 AM
go to this thread, this will give you an idea of the sensor.

http://newlifegames.com/nlg/index.php?topic=9291.0 (http://newlifegames.com/nlg/index.php?topic=9291.0)



Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 10, 2016, 01:35:39 PM
Thanks. Does anyone know where there is a manual for this machine? So i can check the wiring on the two door switches?
Title: Re: Universal slot machine 50 code
Post by: UNIMAN on February 10, 2016, 05:31:00 PM
Alright, now your going to get me off my butt!! I have two older Uni's. One is Double Jokers Wild and the other is a standup machine with Midas Touch in it.
When I moved to Laughlin last September the Midas Touch started doing the same thing! Error code 50 never goes away, yet the machine still plays. That's not right! I was thinking it was one of the many doors in the machine, but now you have the same problem so I'm thinking it's either a board or software problem.
Machine should not play if error 50 is active. Or, machine plays and error 50 goes away. Not machine plays and error 50 persists.

I will now dig a little bit and figure it out.

PM me with an email address and I can get a manual to you.

Jim
Title: Re: Universal slot machine 50 code
Post by: UNIMAN on February 10, 2016, 06:00:18 PM
Quick update before I head out for dinner.

Swapped boards in my machines and problem stayed at the machine. So not a board problem. Next logical choice is an optic problem.

In your pic of the grey optic I need to know where it goes. Should be two below coin comparitor, a third further down, and one in the door itself. Suspect yours was the third one down.

The one in the door is the suspect optic.
That third one down below the comparitor is used when coins are diverted to a cashbox in the stand instead of going to the hopper. Only needed for casino use this optic can be used as a spare. Try swapping it with the door optic.

Off to dinner, will continue troubleshooting my machine later.
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 10, 2016, 06:32:44 PM
Thanks uniman i sent you a pm
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 10, 2016, 07:21:13 PM
Uniman where is the door optic that has to do with the door being shut. Where is it mounted? Thanks
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 11, 2016, 10:28:55 AM
Here are a couple of pics of inside my door.
Title: Re: Universal slot machine 50 code
Post by: Jim on February 11, 2016, 11:15:21 AM
I would say that is the door lock sensor.  it should be mounted  so the action of opening and closing the lock bar slide would slide in between the "U" shaped optics, that would signal the cpu that the door is closed and hopefully make the code 50 go away.  I'll look at my Mustang machine tonight and see how it is mounted, some earlier machines had a switch positioned there and an arm would hit the switch and preform the same action the IR optics do.
Title: Re: Universal slot machine 50 code
Post by: UNIMAN on February 11, 2016, 06:44:59 PM
Ok, now I see why your asking about the optics. Your coin optics I have not seen before. Universal used grey or black optics, but the black optics did not look like those. But they are working so no big deal.
First a question; I am assuming the machine was working normally and then started flashing error 50. Right?? NOT, I just got it and it has this problem.

That grey optic hanging looks a little big for a door optic, but might have been rigged that way. Try a piece of elect. tape in the optic. Tape it thru the middle of the U.

My machine problem is a Cherry Switch. This machine has five cherry switches! Much different than your upright machine which should have just one.

Below is a pic of a standard Uni machine door. You can see the grey optic in the door where the lock is. Closing and locking the door blinds this optic telling the mpu the door is closed and locked.
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 11, 2016, 07:17:26 PM
Thanks guys, This machine has been like this since i got it. It never has worked correctly since i have had it. Here is a pic of machine with door open. It has two of the white cherry switches. I guess that is what you are calling cherry switch. The one hanging out is a new switch i put in. I just dont know if the wiring is right on either one. Also i dont know if this machine is suppose to have a door optic. I dont know if the manual will show how they are suppose to be hooked up or not. Do you know if all of the wiring on these switches would be normally open with door open and closed with the door closed?
Title: Re: Universal slot machine 50 code
Post by: Jim on February 11, 2016, 07:25:53 PM
I took a picture of the mustang machine I have.     it looks like the door lock optic.     the top picture is door open, no black metal in  optic,  bottom picture is door lock closet, black metal blocking optic.  Jim
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 12, 2016, 10:24:04 AM
It is my door sensor. I found out that the 2 door switches have to be made first. Then make the door sensor and it works. Jim your machine looks like mine inside. Could you take any pics that would show how the sensor is actually mounted in there? I think mine is missing what the sensor is suppose to mount to. I guess i can make something. Pics of how it was originally would be nice.  Thanks
Title: Re: Universal slot machine 50 code
Post by: Jim on February 12, 2016, 10:32:13 AM
the top picture in reply #14 shows exactly how it is mounted. a screw is secured to the door panel, look and you will see the screw, its reddish in color.  that's as good as picture as I can get. the sensor is mounted with the "U" opening up, the screw is put in the bottom plastic .


Jim
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 12, 2016, 04:31:26 PM
Ok i made a bracket. What ever is in your machine to mount it to is not in mine. All that is in mine is the outside of the door. I could not put a screw through the door. Here is a pic of mine before i made a bracket. Now my issue is the hopper pays to many coins every time and i get a 31 error code. I also have no sound when the reals are spinning. I think all other sounds work. Any ideas? Thanks
Title: Re: Universal slot machine 50 code
Post by: UNIMAN on February 12, 2016, 06:13:57 PM
You can blind the optic with tape if it cannot be mounted. My Double Joker has no lock so I tape mine. Then only the Cherry switch signals an open door. I'm betting only one of your switches has wiring?

The hopper overpay is usually caused by a sticky solenoid the releases the coin deflector. You need to take the cover off and spray the solenoid with WD40. Also check the spring.

Your reel spin sound may not be there. Take a picture of your sound chip(s) and I can tell if it has reel spin sound. Not all have reel spin sound.

Also a pic of the eight dip switches on the daughter board at location 1A on the mpu.
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 13, 2016, 01:43:24 PM
I could not just blind the optic on mine. The two switches on door do have wires to them. Those two switches have to be closed or made first and then the door optic or it will tilt. If you just have door open and make the door optic with out the door switches being made it will tilt. So my machine sequence has to be two door switches then door optic. Here is a pic of bracket i made. The optic is screwed to this bracket i made and put in.
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 13, 2016, 01:49:19 PM
Uniman here are the pic of sound chip and dip switches.
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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
Title: Re: Universal slot machine 50 code
Post by: newkid3 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?
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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
Title: Re: Universal slot machine 50 code
Post by: newkid3 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
Title: Re: Universal slot machine 50 code
Post by: Jim 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 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.
Title: Re: Universal slot machine 50 code
Post by: UNIMAN on February 17, 2016, 05:28:10 PM
Jim, hope you don't mind!

Why would I ever mind!! Thanks!!
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 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.
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 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
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 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?
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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!
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 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
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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.
Title: Re: Universal slot machine 50 code
Post by: UNIMAN 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.
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 20, 2016, 05:58:38 PM
Will check that and post back here hopefully by monday. I appreciate the help. Thanks
Title: Re: Universal slot machine 50 code
Post by: newkid3 on February 22, 2016, 11:23:46 AM
Thank you very much. That did the trick. It is up and working correctly now. Thanks again
Title: Re: Universal slot machine 50 code
Post by: UNIMAN on February 23, 2016, 07:11:03 PM
 :applause: :applause: :applause:

Great to hear that!

Universal has no documentation (that I've seen) detailing what dip settings are for the 8933 Master/System chip, which your machine has. I remembered it was same as the 8601 for which there is documentation, but there are two different versions and I quoted the wrong one intially. Glad I caught it and corrected!!
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