New Life Games LLC
**Reel Slots** Gaming Machines => IGT S2000 and Vision Games => Topic started by: Oldslot on October 26, 2022, 08:32:46 AM
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Hi. This is for a Double Diamond Mine.
I get this message. And no display and netplex link
I purchased this game in this condition. So I don't know the history. Would love to get it working. I did a clear and key wit h I purchased from jjslots on ebay. It didn't change anything.. but it may have to get past the netplex link stopping the boot. There us nothing on the small screen. I checked all connections to that netplex. They seem fine. What's next?
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Check the coin battery voltage on the mpu. Replace if less than 2.9V. There is also a battery in the top box that needs to be checked.
Does the top box do anything when powered up? Can you see maybe a backlight coming on? Some pics of mpu would be good
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Picture
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Pic of MPU. Also upper board has fan running. Not sure if its got power to rhe small board
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Is there a monitor in the top box? Looks to be missing?
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I need to see a close up of the MPU battery. Looks like the + is soldered to the - side of the board.
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The fact that the VFD is displaying a communications error tells me the MPU is working. If there is a problem with Varta battery damage, it would have to do with the serial port that communicates with your top box, and I don't see much damage. This seems more like a top box problem to me. As Mark asked, are all the parts in the top box?
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Top box pic. Looks like it's all there. But I'm not familiar with these
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Anther pic.
And another pic of upper screen
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Did you check the battery in top box like qbert asked?
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New battery on both boards.
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I hope you didn't remove or plug in any boards with the power on?
That's a perfect way to blow up IC components on circuit boards.
Pull the 4-pin connector off of the LCD unit in the photo below and check the voltage when you power up the machine with a multimeter.
I pointed out the Molex power connector housing for you with a green arrow below.
Two of the pins should give you 12 volts DC....offhand I don't remember which two pins but with a multimeter, you'll find it.
If you don't have any power coming in to this connector, the LCD unit won't come on.
There's a 2-pin jumper that you need to move behind the memory stick on the left-hand side of the LCD unit.
Moving the jumper allows you to see what is installed during boot-up.
BTW It's the same voltage that old desktop computers used about 10-15 yrs ago.
If you have a desktop power supply, you can plug it right into this connection and see what comes up on your LCD unit.
I posted also below a drawing of your tobox.
Follow the P/J3 Netplex connector wiring harness down to the backplane and make it's connected to the backplane.
That's the connector your topbox LCD unit gets it's power from.
Click on any photo below to enlarge if needed...>>>
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Ok. Thanks. Sorry it took so long to get back. It does not look like the upper display board is getting voltage to the board. Although there is power coming in for the boards fan. Connection at power supply is fine but red led on power supply is off.
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If I would need a power supply. Are they available? Or does this need rebuild? Who does that? Thanks
Also.. in your picture there is a ribbon cable plugged in. I'm mine there is no ribbon cable. Also netplex connector plugs into unit behind hopper in center. Is that another power supply?
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The ribbon cable in the top box is for a CD player, most vision boxes do not have a CD player or the cable.
The communication link is the three or four gray wires from the back of the vision top box to the ezpay box behind the hopper as you described.(P/J89 RS232/Comm) From there you should have a ribbon cable from the ezpay box to the motherboard on the back wall where the mpu plugs in. You must have that ribbon cable Installed and in the correct orientation for communication between the top box and the mpu.
Power for the top box monitor plugs in on the back wall of the upper compartment of the machine. That is the netplex connector. (P/J3 connector)
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Thanks. I have all that. What to do if no power to board? Looks like there is power to fan next to bd. So guessing I'm not getting the lower voltage to power the small board and display? How to correct that?
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Power it up and turn off all the lights in your room.
Use a flashlight and point it at the LCD and move it around....with the flashlight, see if you can see anything written on the LCD screen at all...that 2-pin jumper I pointed out to you must be in the "ON" position to display boot-up messages.
I'm suspecting that the power invertor for the LCD ballast is burned out and not lighting up the display.
It's sort of a common problem with these Vision LCD screens as they're now really getting up there in age.
The ballast that lights up the LCD screen is located next to the unit's fan that you speak of on the left-hand side when looking at the unit from behind or component side.
Tuesday I will be around a Vision machine and can try to make short videos to help you out?
I can try to find which two pins make up 12VDC out of that 4-pin Molex power connector.
Need to determine if you're getting power to the topbox board unit other than the fan.
What's your zipcode location?
Maybe a member nearby you that knows how to troubleshoot a Vision can help ya too?
Might be easy to test your LCD unit on their machine.
To test your software as well to see if everything's well and nothing's corrupted.
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Thanks so much for your help! I will wait to hear from you. I'm located in Harleysville, PA 19438
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I did what you said.. turn off lights and use flashlight. There us info. On the small screen. Very dim and hard to read even with flashlight. Looks like a boot sequence. Thanks I'm feeling progress! Will wait to hear from you.
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okay....I will try to simulate your problem by disconnecting my LCD ballast and use a flashlight.
Give me a few minutes.
okay yep....when I disconnected my lcd ballast, the screen was black but with a flashlight, I was able to faintly see that the lcd was indeed going thru a "boot-up" sequence.
You need to get a new ballast...they're small circuit boards called "LS520".
Here's a link to the top three for sale on ebay...>>>
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=LS520+ballast&_sacat=0 (https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=LS520+ballast&_sacat=0)
Below is a picture I took of the number on the small ballast circuit board you need and a link to a short video I tried to make for ya on on my youtube channel of where this little lcd ballast board [LS520] is in your topbox lcd unit...>>>
https://youtu.be/Os24P30qqeA (https://youtu.be/Os24P30qqeA)
oh btw, I'm located quite far from ya (12901).
There ARE slot guys located not too far from you but I don't think they have a ballasts for you.
Not too many guys have extra Vision parts.
I think getting one of 1st 3 three ballasts on the ebay link I gave ya will get your lcd screen lit up again.
Take a ohoto of the ballast that you're removing....I might be able to see what's wrong with it or not.
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Thank you so much for your help. I will get the parts and report back with the results.
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Thanks again for the video! Very helpful. My next question is .. I understand this will lite my screen. Will this resolve the neplex link issue? And allow this board to boot? Thanks
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The board pics.
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Thanks again for the video! Very helpful. My next question is .. I understand this will lite my screen. Will this resolve the neplex link issue? And allow this board to boot? Thanks
No. The only thing it will do is light up the top screen so you can see what it's doing hopefully. It's possible that your inverter board is good and the CCFLs are bad. You'll know for sure when you swap the inverter board (what bunker calls a ballast).
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I couldn't really tell from your photos if any IC component is burned out.
Look carefully at each IC component.
You may see one that looks overheated....the circuit board itself around the chip will look a little browned.
Anyways, not too important as you're getting another working ballast anyway.
The IC components on these ballasts or invertor boards are really small and tough to repair without proper magnifying soldering equipment.
Micro-soldering is another level of board repair.
Swapping out the invertor board is cheaper than swapping out the CFFL's at the moment.
They are NOT easy to get at in the LCD....if we findout that your CFFL's won't light up after you change the invertor, then I can give you a link to a new LCD screen that should have good CFFL's inside.
"Netplex link" message on the blue VFD display can mean several things.
However, replacing a burned out LCD screen ballast will NOT make that message go away....in fact, your burned out LCD invertor/ballast has nothing to do with it.
I DO have a link to a short pdf file about diagnosing a "Netplex Link" error message.
It actually says "Netplex Link Down"...not sure if there's a difference.
Maybe someone can chirp in here.
Give me a few minutes to search for it.
Okay...I found it...I copy&pasted it.
You can try it while waiting for your topbox unit parts...here it is...>>>
How to diagnose a Netplex Link Down error.
First disconnect all Netplex devices except the blue VFD display.
This includes the bill acceptor, printer, some progressive displays, some top box bonus devices.
Now that those are disconnected check the following.
Is your error solid or blinking.
Blinking
Do you have a 50x or 1270 mpu?
1270
Remove the Varta and U16.
50x
MPU fault.
Solid
Do you get no disp on your credit display
No
The MPU is not booting check the mpu for signs of faults or problems with the chips.
Yes
Check voltage at the blue VFD display on the 2-pin connector.
Check the data cable for any signs of damage, especially where the door closes.
MPU is faulty or damaged...check for bent pins.
Later on, if we find that your cheaper part (the LS520 invertor board) doesn't light up the LCD, there are replaceable LCD screens with the CFFL's inside available here and there online.
Here's a link to some replacement LCDs that I've found that work with the Vision topbox LCD units...>>>
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=Sharp+LQ10D421&_sacat=0 (https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=Sharp+LQ10D421&_sacat=0)
I've taken one of these small LCD's apart...believe me, it's easier and cheaper to buy the whole thing than to try and locate/replace the CFFL's that go inside of it.
The model number of the LCD screen is...>>> Sharp LQ10D421
Click on photo below to enlarge if needed...>>>
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Thanks. I will post progress.
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I got the new board and put it in. Does not work or light up.... I saw in another post the box that is behind the hopper - where the Grey wires from the small display plug in could be bad? It has a red led light that is not lit. The link to buy one shows out of stock. Are these available somewhere else? Thanks
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That could be the problem with your comm error message, but it won't fix topbox display. The CCFLs in the panel must be bad in it.
That red led is not normally lit.