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Author Topic: Universal jackpot 7s - handle not working  (Read 7577 times)

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Offline Inetjnky

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Universal jackpot 7s - handle not working
« on: April 22, 2017, 03:37:01 PM »
Good afternoon!  This is my first slot, and I've been playing it most of the afternoon since I got it!  Works well however I'm looking for a manual for this machine. It's NOT the ultra.  The handle was originally locked when I brought it home.  I've been reading other forum posts here and the archive forum on others who had handle issues with theirnslot and test #5 / 137 make a loud pop noise which I'm assuming is the solenoid for the handle lock.  The handle was able to be pulled down however it did not come back up.  I put some
WD 40 on the bottom part of the handle mech and wiggled it a bit and that released the handle and it went back into the upright position.  The handle now goes up and down... without any credit?  When I add credits and pull the handle no reels spin.  Any idea what I might need to do to fix this?


Also, how can I take off the coin tray and remove the hopper?  It needs cleaned inside bad.  Thank you!

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Re: Universal jackpot 7s - handle not working
« Reply #1 on: April 22, 2017, 06:06:15 PM »
Just some more info... ran test #9.  Here are the results.


98933
90007
98938
90004
91200


Also looking at my handle mech a little more, It looks like the optics are working ok as they light up.  The one in the front is lit up red when the handle is up and the one in back lights up red when the beam is broken when the handle is pulled down.


I also managed to get the tray and hopper out... and about $10 worth of quarters behind it.   :cool_thumb_up:


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Re: Universal jackpot 7s - handle not working
« Reply #2 on: April 22, 2017, 08:54:19 PM »
Ok found an older post by unimaginable that states the following...


On that sub-board.[/size]Set dips #1, #2, #3 to ON and your credit limit is 2500. Right now they should be #1 OFF, and #2 & #3 ON, this is for 1200 coin limit.Dip #4 allows you to select whether you want wins to immediatley payout or go to credit, or always go to credit. Set dip #4 ON to have all wins go to credit. Set dip #4 to OFF and you need to press the cashout button before playing to have wins go to credit. If you don't press the cashout all wins are paid by hopper.Don't touch dips #5, #6, and #7. #5 determines type of coin-in optics, #6 the hopper type, and #7 the handle optic type.Dip #8 ON lets the MAX Bet Button start the reels, OFF and you need to press SPIN to start reels. Best to leave it ON, makes no sense to me to have it OFF.
My board is def setup for 1200 coin limit.  I'm fine with that.  Dip 4 on mine is set to off.  Just tested and wins go to credit.  All buttons work and light up but the credit/cash out button sticks depressed and I have to open the door to press it back up.  How can I fix this?  The bet 1 button sticks as well but not like the other.  Max bet and spin work fine.


Interesting to note that once I choose credit for wins, the handle is locked in the up position.  With credit or dropping coin in doesn't release the handle lock. 


So far everything is working except the handle :(. I'd love to get this working.  It's my fav thing to pull the handle!
[/color]

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Re: Universal jackpot 7s - handle not working
« Reply #3 on: April 24, 2017, 05:00:59 PM »
Been reading another post on the archive forum where UNIMAN was helping another fella out with his handle and I was using gnthe troubleshooting info to troubleshoot mine but I'm in need of some help so UNIMAN if you have a minute I would appreciate an assist.


I checked all three optics.  The optic to the right of the reels is not lit, however if I run a piece of paper into it, it lites up.  The two under that, the one in front is lit and the one behind it is not.  The one behind lites up when I pass paper through it.  The only way I can get the handle to unlock is running test #5 / 135.  I've narrowed it down to dropping coin in does not activate the solenoid to unlock the handle.  Not sure if the solenoid is bad (why does it unlock when I run the test?)?  If it's bad, what are my chances of getting one that works somewhere?

Offline UNIMAN

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Re: Universal jackpot 7s - handle not working
« Reply #4 on: April 24, 2017, 05:30:19 PM »

Let's get it working!


On your sub-board at location 1A what is DIP #7 set at? It should be OFF for gray handle optics.


Make sure it is OFF.


Then perform RAM clear. Anytime any DIP is changed a RAM clear is needed (RAM clear; push small black button on mpu board at bottom middle of board, should be a round hole in case to reach button. Push this button while powering on machine, hold for three seconds after power up and release. moving hopper out way helps to access button. )


Handle solenoid should release with coin entered or bet 1 pressed.


Let me know how it goes. If this doesn't work we'll dig a little deeper.


Jim


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Re: Universal jackpot 7s - handle not working
« Reply #5 on: April 24, 2017, 05:44:40 PM »

On your sticky buttons. Drinks spilled on machines is the usual cause.


With the machine off, open door and you need to pull down on the white switch with the wires on it that is connected to the bottom of the button. They snap in and you need to pull down a bit to get them off. Then there is a threaded ring underneath the button you need to unscrew. Should be a washer with it. After removing the ring you can pull the button off and clean it.

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Re: Universal jackpot 7s - handle not working
« Reply #6 on: April 24, 2017, 06:28:57 PM »
Can't figure out how to get the board out... still looking...


Regarding the stuck button, I'm not seeing what you are describing... attaching pictures...








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Re: Universal jackpot 7s - handle not working
« Reply #7 on: April 24, 2017, 06:31:47 PM »
I pulled the light with the switch out and then squeezed the two plastics together and slid it up and out.  I shouldn't have done that?  I think I see what you are saying to remove the washer and nut.

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Re: Universal jackpot 7s - handle not working
« Reply #8 on: April 24, 2017, 06:47:52 PM »
Ok I pulled the board out... here are pictures...




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Re: Universal jackpot 7s - handle not working
« Reply #9 on: April 24, 2017, 06:51:22 PM »
Based on what I'm looking at I have more work to do... looks like the battery is leaking and needs replaced.  Where can I get one of these?  Second, should I have two sound chips?  Am I missing one?  I have no reel sound.  Should I?  Am I missing an eprom?  In between 8933a and 8933b?  In the dip switches in the picture, you want #7 off correct?  It is currently on.

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Re: Universal jackpot 7s - handle not working
« Reply #10 on: April 24, 2017, 07:59:15 PM »

Battery replacement MUST be a NiCd battery. Bought my last one off of eBay from China.


-One sound chip was standard, only plays sound when credits add up or cashed out, also error sounds like when the door is open. Do you have that? There are versions of two sound chips and I believe yours is compatible. By that I mean there is no documentation for what sound chips fit what games. More on that later.


- Your two chips labeled 8933a and 8933b (incorrect I might add) are the only chips needed. Universal designed for expansion on the 8116 board. Your good, except the chips are labeled wrong, let me check more on that.


-Yes, set DIP #7 to OFF, that is your problem. And do you see the little reset button. Need to push that while firing up the machine. You will lose any credits on the machine with the RAM clear.

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Re: Universal jackpot 7s - handle not working
« Reply #11 on: April 24, 2017, 08:16:03 PM »
Ok, I'll change the dip switch to off from on.


I've got two batteries on order from China.


I'm interested to learn more about this game and the chips installed.  I'm not planning on putting this back together until I have the battery replaced.  Thank you for assisting so far!

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Re: Universal jackpot 7s - handle not working
« Reply #12 on: April 24, 2017, 08:23:24 PM »
Yes I have sound when the door is open.  I also ran a sound test and it ran through a gamut of various sounds successfully.  Was just wondering if I could add a 2nd chip to get reel sounds.  If not that's fine, just a curiousity.

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Re: Universal jackpot 7s - handle not working
« Reply #13 on: April 24, 2017, 08:58:37 PM »

Just some more info... ran test #9.  Here are the results.


98933
90007
98938
90004
91200



Ok, The eprom labeled 8933A is actually 8938-004. The other labeled 8933b is actually 8933-007.


The 8938-004 has me a little puzzled. Last I remember Universal used a 2732 size eprom with 24 pins. That eprom is 28 pins so it is larger. A larger eprom works ok, even with more pins, but those have red security tape like they are originals. That game should have a 1989 or 1990 registered trademark printed on the reels. They numbered their eproms by year of development, yours are 89's. Maybe they went larger in 89, can't remember. No big deal.


The 8938 is what is called the game or personality chip. It has all the specifics for Jackpot 7's.
The -004 after it identifies the virtual stop table in it that determines the theoretical percentage payback. Yours is 90.182%. That means over a million plays or so the casino can expect about a 10% profit. This game ranges from 79% to 95.9% depending on this chip version.


The 8933-007 is the system chip. This chip stores records, checks for errors, and does all the background stuff. It is used for a whole variety of games.


The sound chips as I reported are undocumented. The system chip requests the sound so the system chip must be compatible. What I have found is, as I remember as it has been awhile is the 8933 system chip doesn't like reel spin music, but there is a sound chip pair that have "whoosh" at the start of a spin and it works with the 8933. Later system chips from the 90's work with the reel sound but your game can only use the 8933.




Jim

Offline Inetjnky

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Re: Universal jackpot 7s - handle not working
« Reply #14 on: April 24, 2017, 09:18:32 PM »
Wow thanks for all the info!  What year would you say this was made?  1989?  There's no name plate on the outside.

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Re: Universal jackpot 7s - handle not working
« Reply #15 on: April 25, 2017, 04:39:02 PM »

Wow thanks for all the info!  What year would you say this was made?  1989?  There's no name plate on the outside.
There should be a nameplate on the outside right behind the handle. It does not have a spot for year of manufacture. Universal had no model # for the machine and they didn't stamp the year it was made. Nevada made them put a year made on them I believe starting in 1992. So then they would stamp Y-92 on the model # area of the nameplate. Older machines have the model # blank.
There should be a copywrite date on the reel strips, very small on one side. That's the best you can do.


And, most Universal's today are a mix of parts from different machines made between 1985-2000.

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Re: Universal jackpot 7s - handle not working
« Reply #16 on: May 06, 2017, 02:01:14 PM »
Ok UNIMAN... I replaced the battery today.  Piece of cake.  Luckily no acid was on the board and there was nothing to actually clean on the board.  I made dip switch 7 was on.  Put it all back together, fired it up.  No errors.  Dropped a coin in, reels spin and everything seem s to be working except the handle.  The first time I dropped a coin in and pulled the handle the reels spun and everything worked normal.  Since that first spin, now when I drop a coin in and pull the handle I can hear what sounds like the motors on the reels want to spin but nothing spins until I press the spin button.  Yes I cleared the ram on the first boot up and tried again since then just to see if it would make any difference but it does not.  Any idea why the reels won't spin after the first successful one?  I checked the grey sensors with a piece of paper and they all light up successfully.  I ran test 5 again but in test 137 I didn't heard a loud pop this time but wasn't sure if that's because the handle is already unlocked.  Thoughts?

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Re: Universal jackpot 7s - handle not working
« Reply #17 on: May 10, 2017, 04:40:12 PM »

Sorry for the late reply, had an out of state family emergency. All went well I'm happy to say.


I would next look at the connectors to the three handle optics. Make sure they are connected to the right optic. All three optics have three wires each. Two are pink and black. The third wire should be violet on the top handle unlock optic.
Below, the optic closest to the door is the return optic and should have a gray wire.
The optic furthest from the door is the reel start optic and should have a sky blue wire.




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Re: Universal jackpot 7s - handle not working
« Reply #18 on: May 11, 2017, 08:14:02 PM »
Hey UNIMAN... I finally had a chance to look at this tonight and did some diagnosing.  Here's what I found...


First, based on your last post my wires are in fact hooked up correctly.  Second, after opening the door and locking it and holding in the white button below the reset switch to trick the machine into thinking the machine is closed and locked, I dropped a coin in the slot.  The top sensor closest to the handle did not light up.  However the bottom front sensor remained lit and pulling the handle caused the bottom rear sensor to light briefly.  Placing a piece of paper into the top sensor which caused it to light up.  Once it was lit, I pulled the handle and the reels spun just fine.  Do I have a bad sensor?

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Re: Universal jackpot 7s - handle not working
« Reply #19 on: May 11, 2017, 08:22:34 PM »
Or maybe I have a bad handle solenoid?

 

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