igt Double Diamond Mine

[scottf11961]

Hey everyone
I just picked up a double diamond mine (vision). When booted, it waits for the video screen that never comes on. Then I get the "video display comm error ".  I looked at a few basic things like wires on the distribution box, and the ribbon wire,  what else can I check? I do have another vision machine that works great, so swapping parts to check is not a problem. 

Also, what clear chips do I need? I have all clear chips, just want to know which ones I should use. Here's pics of 7551050 board.

Thanks in advance

[a69mopar]

My memory is rusty on the vision machines,  either that or I'm tired tonight.  Did you check the battery in the vision /top box computer?

Thanks,
Wayne

[Stayouttadabunker]

There's a communication (COM) harness that has three gray wires that run from the power distribution box up to the topbox LCD computer.
Make sure it's plugged in at both ends.

I've attached for you below, a photo of the COM harness plugged into the PDU.
It's on a black 6-pin Molex connector, but only utilizes 3 wires.

Vision machines use an IVC00224 Clear chip.
It will erase all the settings that you don't know how to set up...is that what you really want to do?
A KEY00031 would be a much better tool to have for a Vision machine.
The software in your game is ancient but you don't want to mess with the combo.
That's an original set-up.

Also, is there a CF card up in the LCD computer?
What numbers are on the label?
I can verify if you have the correct BGM card in there, or not.

Click on photo to enlarge if needed...>>>

[a69mopar]

If I remember correctly,  someone had a bad distribution box that caused this error also

W

[scottf11961]

Ok, so a couple more pics, and I did put fresh batteries in , but that didn't help. I swapped the power distribution box with a known good one, but that didn't solve the issue. Upon start up, looks like it's booting correctly,  then 'waiting for video message' comes on for a minute, then everything blanks out, reels spin and stop at seams centered on payline...'no disp' flashes briefly in credits window..andthen it shows the comm error message in photo.

Anything else I should try? Look for?

[Yoeddy1]

If the batteries go, is the CMOS toast?  Anymore, on any of my machines, when batteries go tits up, I always replace all batteries, clear the memory, and reload the game.

Thanks,
Jason

[scottf11961]

I did put fresh batteries in.  I really don't want to use ram clear chips unless absolutely necessary .

[Stayouttadabunker]

You might want to put in a jumper so you can observe more stuff as the LCD is booting up.
The pins to jump are behind memory stick between the ribbon cable and the power plug for the LCD invertor.

Click on photo below to enlarge if needed...>>>

[scottf11961]

Put the jumper on...and this is where I'm at

[Stayouttadabunker]

Top part is good but...>>>

"Operating System Not Found"

You're missing something on the MPU.

Does the LCD boot advance further than that last message?

[scottf11961]

These pics?  Or do want to see the whole board?

[Stayouttadabunker]

no...that's good.
The LCD screen...does it advance further than the last photo you've shown with the "Operating System Not Found"?

[Tilt]

Looks to me like the RFA for the vision computer needs to be reloaded.

[Stayouttadabunker]

Oh yes that's right...he replaced the batteries..>>>

"and I did put fresh batteries in"

...he lost everything. Ugh

[scottf11961]

With the jumper on, the screen boots up like a computer, but gets to "operating system not found", and that's where it stays. I do have another vision game that works good. Should I try swapping the top cards? 🤔  here's a pic of the card that's in the DD mine

[Stayouttadabunker]

I don't know if swapping game CF cards will help because when you replaced the battery in the LCD, there's a file in memory called the RFA.
I don't remember which version you'd need...without looking at any sheets, I would say at least RFA100.25?
It's been quite a while since I've played with a Vision machine.

[scottf11961]

I'm not sure what any of that means. This is my first venture working on a vision machine. My other works fine, so never had to work on it. Is there anything I can do...any part I need to get..ram clear..etc? What can I do. Other groups are telling me to use key31..by itself? My other s2000s use 97-17. My GK uses just 28..not sure what to do with a vision

[Tilt]

I've never had to reload the RFA on mine, so I'm no help there.  Hopefully Elvis will pop in with some advise.

No, your issue is with the topbox (vision computer) not the MPU board.  Keychips of any type aren't going to help you here right now.  Put the clear chip (97) away and don't ever use it unless you need to change the accounting denomination.  I hate that term "clear" because people seem to think "oh, I have an error, I'll run the clear and get rid of it.".  Well it doesn't, what it does do is return all the machines settings to factory defaults and that screws up a bunch of other settings that most people struggle to get back to the way they used to be.  Use the same caution with that as you would running a "factory reset" on your cell phone.

[a69mopar]

the rfa card loads from the side slot. from what I remember you put the card in and boot it up, the card is removed after this. I can't remember if the top card stays in, but I would just remove it to be sure.  Hopefully someone that remembers the details chimes in.

[a69mopar]

It's interesting that I looked in my drawer of cards and saw this. Not far off from his card