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**Video Poker, Keno, Slots, 21** Gaming machines => IGT I-Game and Game King => Topic started by: mateo107 on March 09, 2017, 09:57:21 AM

Title: Game King Keno
Post by: mateo107 on March 09, 2017, 09:57:21 AM
Hi There,


Just picked up a sight-unseen Game King Keno, Multi-Game, machine.


The machine was *supposedly* working (we all know how that goes).  Looks like the touchscreen needs calibration.  Trying to turn the key twice with the door shut brings up the calibration menu, but it just sits on "Taking Ambient, Please Do Not Touch The Screen" and doesn't move passed that.  If I try to do this process with the door open, that screen stays up for a bit , but moves around the screen as if it's actually doing something and eventually it will tell me to close the door to complete the calibration.


In either case, I never get to the "press the center of the dot" to calibrate portion.


If I try to do the "test touch screen" the 'drawing' goes ALL over the screen.  Any thoughts on where to go from here?


Looks like this machine was a CRT thats been converted to an LCD at some point.  Attached are all the pictures I could get.


Thanks in advance.


-Matt

Title: Re: Game King Keno
Post by: shortrackskater on March 09, 2017, 11:23:13 AM
Just something to start with here. Sometimes, in moving, things get wiggled out or loose. Check all your connectors starting with the plug that goes in back of the LCD as well as the other side where it plugs in the back of the machine. Do this with power OFF of course. Make sure your MPU (computer board above LCD) is plugged in fully. Just give it a firm press.
If you don't try calibrating, does the machine boot up and display anything?

 :NLG_WELCOME:
Title: Re: Game King Keno
Post by: mateo107 on March 09, 2017, 11:25:57 AM
Sorry, should''ve mentioned that I already unplugged everything and checked connections.


Noticed (as you can see in the pictures), whoever made the DB9/serial connector did a pretty hack job with wires nicked and whatnot, so I replaced that, same problem.


I should probably also note that this machine does not currently have a bill validator installed, so it is throwing a bill validator error as well.  Any way I can tell it to ignore that error for now?  I'm seeing something about Netplex having issues if Bill Validator isn't there.  Maybe that's part of the problem?


Now, I'm trying to source a bill validator.  Can I use one from a Bally S5500 or I have a few megatouch machines that have bill validators, perhaps I can use one of those?



Title: Re: Game King Keno
Post by: shortrackskater on March 09, 2017, 11:30:29 AM
Did you get a key/clear chip with it? I have a game king and it's not that hard to do the clear and then go through the settings to tell it there's not BV, for now. But you did say it was supposedly "working" when you bought it?
Someone else will chime in soon as well!
Title: Re: Game King Keno
Post by: rickhunter on March 09, 2017, 11:57:49 AM
You cannot use a validator from a Bally unless you change the firmware on the validator to IDO024.  Depending on the brand, that may not even be possible.

Title: Re: Game King Keno
Post by: mateo107 on March 09, 2017, 12:46:22 PM
I don't know anything about a clear chip at the moment.  Unless it was on the board when I got it, I don't have it.


Where do I get one?  I'm assuming eBay and how do I determine which one I need? 
Title: Re: Game King Keno
Post by: mateo107 on March 09, 2017, 12:47:36 PM
Also, if I have an EEPROM burner, can I download the clear chip image from somewhere?
Title: Re: Game King Keno
Post by: rickhunter on March 09, 2017, 01:18:03 PM
Post a picture of your mpu and we will be able to tell what clear chip to use.
Title: Re: Game King Keno
Post by: mateo107 on March 09, 2017, 02:59:57 PM
attached board pic
Title: Re: Game King Keno
Post by: Tilt on March 09, 2017, 03:21:26 PM
There's no labels on your EPROMs to determine what software it's running.  You can get that information from the menu system though.  Press the MPU self Test button, then touch the accounting button, then Program Version Accounting.  Take a picture of that screen and we can find the right key.

Title: Re: Game King Keno
Post by: mateo107 on March 09, 2017, 03:34:07 PM
Thanks Tilt, but that's the problem.  My touchscreen isn't working properly.  Is there any way to control the menu system without it?


It was recommended to clear the board to reset everything to see if the touchscreen issue is with the controller or monitor or board/settings.
Title: Re: Game King Keno
Post by: Tilt on March 09, 2017, 03:47:50 PM
Ah ok.  I thought it was just out of calibration but still working.  It's a long shot that a keychip would help with your problem anyhow.  It's probably the touchscreen or the controller causing your problem.  Can you see any damage to the touchscreen?  If not I'd look for another controller and see if that fixes the issue.  That's an older style one you have.
Title: Re: Game King Keno
Post by: mateo107 on March 09, 2017, 04:03:37 PM
i wouldn't mind try another controller... any ideas where I could get one fairly inexpensive to test with?
Title: Re: Game King Keno
Post by: Tilt on March 09, 2017, 04:12:21 PM
I think I may have one that I removed from an old CRT.  I'll dig around a little tomorrow and see if I can find it.
Title: Re: Game King Keno
Post by: shortrackskater on March 10, 2017, 05:57:15 PM
i wouldn't mind try another controller... any ideas where I could get one fairly inexpensive to test with?

What does the machine do, exactly, at power up without pressing anything other than flipping the ON switch?
Title: Re: Game King Keno
Post by: Tilt on March 11, 2017, 08:03:58 PM
OK, I found a touchscreen board like yours in my spare parts bin.  It worked when I pulled it is all I can tell you about it.  If you'd like to give it a shot in your machine PM me an address to send it to.  If it works then make a contribution to NLG in the amount that it's worth to you.  If it doesn't fix it then sent it back.  Fair enough?


Title: Re: Game King Keno
Post by: mateo107 on March 11, 2017, 09:47:46 PM
Thats great!  Thanks Tilt!  Will do.,
Title: Re: Game King Keno
Post by: rickhunter on March 12, 2017, 07:22:26 PM
For the record you have a 3802 board, so you will need a key 17.  Not sure if a key 22 would work as well.  I've never had a 3802 board so I've never tried that combination.  But key 17 was the earlier one.
Title: Re: Game King Keno
Post by: mateo107 on March 16, 2017, 08:07:26 AM
Does anyone have an electrical diagram for my machine?  Or, any thoughts on how I could test this other touchscreen LCD panel I have?


I'm assuming the DB9/Serial connection is fairly straight forward/standardized, but how would I get the video-out off the backplane, and into the SVGA connection on the monitor I have?  I don't mind wiring my own rig to test this. . . just need to know what wires go where.

Attached some photos to assist.  Thanks!


PS: (still waiting on your TC Controller Tilt, thanks for sending!)

Title: Re: Game King Keno
Post by: Tilt on March 16, 2017, 12:30:04 PM
Wiring/schematic diagrams attached.  Your LCD will not be in there as the machine originally had a CRT monitor in it.  Your LCD kit looks like it was something that someone put together themselves?  You said that you were having bill validator communication errors as well.  The touchscreen and bill validator are Netplex devices and share the same bus.  If one is bad it can cause problems for the other.  Try pulling your bill validator out and see if the touchscreen works.  If not, disconnect the netplex connector from the touchscreen controller and see if the bill validator communication error clears.  The Netplex connector is J100.  Make sure to turn off the power when disconnecting things. 

Where does the other end of that DB25 connector go (the one with the frayed black nylon casing)?  To the monitor shelf connector?  If you can take a picture of it.

I sent the controller out Monday, it should have already been there.  Looks like USPS screwed up delivering it, not sure if it was because of the snowstorm out that way, but I wouldn't think so since it hasn't left Michigan yet.
 
Here's the tracking info:

https://tools.usps.com/go/TrackConfirmAction?tLabels=9405803699300416060872 (https://tools.usps.com/go/TrackConfirmAction?tLabels=9405803699300416060872)



 
Title: Re: Game King Keno
Post by: mateo107 on March 24, 2017, 04:01:03 AM
Thanks so much for the help thus far, Tilt.


Received the touch screen controller.  Tried the one you sent and I've got the same result, sadly.


At this point, I'm thinking perhaps that that actual touch screen/monitor itself may be bad.  I'm going to try to dismount it from the game and check the wiring/solder points to see if anything is broken.  I'm also going to see about cleaning the screen, again.

That said, I'm still not 100% convinced it's the monitor.  The game seems to "lock up" during certain points so I'm thinking it could be another issue too.  Just not sure where to go from here. 


By locking up, I mean, for example - as I mentioned earlier.  I could be in the touch-screen calibration screen where I've turned the reset key twice and now it's trying to set the ambient... and it just hangs there... never moves past that point. 


The wiring diagram is very helpful, so, I can likely try to 'hack in' one of the other touch-screen monitors I have.


<sigh>
What I thought was going to be a steal of a machine, looks like it might be a pit. :(
Title: Re: Game King Keno
Post by: Tilt on March 24, 2017, 03:27:17 PM
Sorry it didn't fix it, but at least you were able to eliminate something.  The touchscreen itself may be bad, but usually they only go bad with visible evidence of damage (scratches/cracks).  It's also possible that the MPU is the cause.  In your case I don't your MPU is actually locking up, but sitting there awaiting input from the touchscreen/controller.  The QUARTs on MPU board provide the interface between the CPU and the Netplex bus devices.  If one is bad then the CPU would not be able to communicate with them. 

If your inspection doesn't reveal anything obvious with the touchscreen/wiring you may want to try a different MPU board next.
Title: Re: Game King Keno
Post by: Amechanic on March 24, 2017, 05:22:24 PM
What size is your monitor? I have a couple monitors here that are 17". I think they have good touch screens. I had to replace the touch screen on a 17" CRT a couple month bad because is was dead. I like to use a razor knife to remove the touch screen. Cut against the monitor where the mounting tape is. Usually in the 2 pieces per side, about 2-3" in from the corners. I have heard of someone using dental floss to cut the mounting. Its easy to crack the touch screen if you force it.
Title: Re: Game King Keno
Post by: mateo107 on March 24, 2017, 09:06:31 PM
Thanks again Tilt, I'll keep you posted.

Amechanic.  The LCD screen itself seems to be perfect, it's the touch portion thats failing, I think.


That said, this is clearly a hack-in job by someone who wasn't totally familiar with what they were doing.


I just traced every single wire/pin out of the backplane to see where it was on their seemingly home-made centronics cable and it's all over the place.  During the investigation, I did notice that one wire is actually disconnected, but not sure which one at the moment (not in front of my notepad).


I have another monitor, with a touchscreen on it, so I'm going to try to wire that one in.  I just figured out which pins were RGB, HSync and VSync off the cable , and which pins are what for the touchscreen J100 interface, so now it's just a matter of rigging it up to see if it too fails.  If so, I'll move onto the MPU as Tilt has suggested.


I also just noticed that the top two fuses are missing from the PSU distribution unit box.  I only have one fuse in the bottom.  Is that normal?  Of course, the caps to hold the fuses in are gone too, so I'll need to find those.  I believe the two that are missing are a .125 (top most) and a 2A (middle).

Title: Re: Game King Keno
Post by: Amechanic on March 24, 2017, 09:23:35 PM
Ok my mistake. I didn't realize this was an LCD monitor.
Title: Re: Game King Keno
Post by: mateo107 on March 26, 2017, 11:56:41 AM
OK, latest questions.


I've toned out each pin in the homemade centronics (extension) cable.  I've found RGB, HSync, VSync and a few grounds, plus the netplex connector rx and tx as well as 13V power.


So, i broke the RGB HSync and VSync to a standard SVGA cable/pinout, along with grounds at pin 5 and 10 for Hync Ground and VSync Ground... however, when I power it up, now, the monitor does get power, but shows "no signal input".  Any thoughts?  Am I missing other required PINs for just a standard VGA monitor to test?


Also, [size=0px]I also just noticed that the top two fuses are missing from the PSU distribution unit box.  I only have one fuse in the bottom.  Is that normal?  Of course, the caps to hold the fuses in are gone too, so I'll need to find those.  I believe the two that are missing are a .125 (top most) and a 2A (middle).[/size][/size]
Title: Re: Game King Keno
Post by: Tilt on March 26, 2017, 01:39:38 PM
All you should need is the RGB signals, the Horz and Vertical Sync signals, and signal grounds.  Does your monitor have more than one input?  Some monitors will scan and auto select the active input, others you have to select it usually with a button or menu setting. 

The 1/8A fuse is for the comm distribution board, not needed for home use.

The 2A fuse provided power to the CRT display through the beau plug on the monitor shelf.

Title: Re: Game King Keno
Post by: mateo107 on March 26, 2017, 02:09:34 PM
Awesome, thanks Titl!  So that means I've got the wiring correct.  Could be a bad monitor, definitely.  And thanks for the fuse answers to!  Saving me from running down more things to test.
Title: Re: Game King Keno
Post by: mateo107 on March 27, 2017, 08:42:56 PM
So I've almost got this machine working!!!


I had to back-trace every single friggin' wire in the thing, but I'm very close.  I have all the pins marked/labeled now and I have a secondary touch-screen monitor hooked up to test.


However, I have one cable/PIN from the 3M touchscreen control that doesnt have a place.  It's a brown wire and the manual for the controller says this:
8 Brown Cable shield/drain wire Connects to the flex tail shield, which must not be grounded because the controller drives the flex tail shield with an AC waveform.


Anyone have any ideas what that means or where I can connect it?


Here's the full link to the manual if anyone needs it.  It's on page 11: http://multimedia.3m.com/mws/media/367149O/ex-ii-serial-controllers-reference-guide-1710-1720-1750-7720.pdf (http://multimedia.3m.com/mws/media/367149O/ex-ii-serial-controllers-reference-guide-1710-1720-1750-7720.pdf)

[/size][size=78%] [/size]
Title: Re: Game King Keno
Post by: Tilt on March 30, 2017, 01:52:36 PM
Glad to hear you've made some progress. 

Here's a few pictures of one of my LCD monitors (Kortek).  It has the newer style touchscreen controller so I'm not sure how much help it will be.  It has a female DB-9 connector on the board, but as you can see it's not used, the flex cable goes into a beige cable that attaches to a line connector pins on the board next to the DB-9.

If you need any more pictures let me know.  Hope you're able to get it working!
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