Blitz 2000 Gold / CMOS / Grounded Coin Slots

ddonaldson

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Finally got my Blitz 2000 Gold up and running, and I'm having an issue with the coin slots and cmos.

The PCB works fine - no errors on boot or in any tests. 20 gb Western Digital HD works fine.
This is an NBA Jam TE Cab that was converted to NHL Open Ice.

First, the Coin Slots:

The coin slots only work when i use my monitor discharging cable...by attaching on end to a ground, and short out the coin mech.

Does this just mean that the coin slot mechanism are not grounded? I thought that all Jamma cab coin slots were basically the same?

CMOS

The board will not recognize dip switch settings for "Free Play". When I set the switches on free play and enter the config screen, it correctly reports that the DIP Switch settings for coinage are active, and even says CMOS Coinage disabled.

When I go back to the game, it prompts me to put in some quarters.

When I reset all the dip switch settings to default, and try to set up Free Play in the CMOS, I get this:

"The CMOS setting of free play is invalid"

"resetting to free play off"

I get this same basic error message when I try to enable language, violence, along with a bunch of other settings...including "Restore Factory Settings". It basically says "(whatever setting) Failed"

All the other tests - hd, pcb, control panel, etc..all work fine...

I replaced the CMOS battery, and reset the CMOS (i think) by using a jumper on the board that is near all the CMOS stuff.

I know that firefgtn8 had a similar issue, but he didn't mention if it ever got it working.

Has anyone else seen this issue? Does anyone have Blitz 2000 (Gold), who can look at their board and see if there are any jumpers plugged in to the board? Mine doesn't have any...

As always, I appreciate all the help.
 
hello sir! it's been awhile, maybe one of these days we can meet up again, figure out this coin door ground thing.
 
Bumping this, because I figured out what was wrong.

I was able to create a bit for bit clone / ghost copy of the HD that game with the game. This is odd, because when I attached it to PCB it wouldn't work at all.

The Boot Rom version on the CHD file out there for blitz 2k is 1.5.
According to my PCB, the Boot Rom version for my game is 1.4.

So I created an image/copy of the old drive onto a used 20gb WD..just a normal IDE 5400 RPM hard drive..

removed the jumper (for master, slave, cable select, etc)

Suddenly, all the CMOS settings were working!

The coin slots still do not work...but it has to be a grounding problem.

If anyone needs this 1.4 version, let me know.
 
was the drive error-free? lol

I got a Blitz 99 drive that has like 4 errors, it'll just randomly reset itself when you play the Cardinals vs. any other team on a certain play.

I really need to dump my SportStation drive sometime.

your coin door wiring should be in a loom that runs along the right side of the cab, I say do a continuity check between the coin switch grounds to the JAMMA edge.. if you can get at least one good ground wire (I think there's a few, for each light and coin switch) you can just jump the good one to the rest, or wire nut them together. or if you're a pretty boy about it, find the broken part of the wiring and splice it with butt connectors or something.

but didn't you say that NBA Jam TE and NHL Open Ice would work with it..? I forget if it was a Blitz cab you had that ran Jam TE last year or if it was the other way around and this is the same cab, lol.
 
I didn't do a windows hard drive check...i just quickly made an image of the drive.

The coin slots & test button work with NHL Open Ice, and I'm pretty sure they worked with NBA Jam....but they both have a test toggle switch, volume pot and credit button mini control board...

NFL Blitz 2000 has a different one - it's got 4 buttons - test mode, volume up, down & credit button.

CHDMAN32 is easy...but if you can mirror the existing drive I think that's the best route.
 
I didn't do a windows hard drive check...i just quickly made an image of the drive.

The coin slots & test button work with NHL Open Ice, and I'm pretty sure they worked with NBA Jam....but they both have a test toggle switch, volume pot and credit button mini control board...

NFL Blitz 2000 has a different one - it's got 4 buttons - test mode, volume up, down & credit button.

CHDMAN32 is easy...but if you can mirror the existing drive I think that's the best route.

oh, yeah I forgot about that entirely, NBA Jam had the volume pot and the slider switch.

well, it's worth noting I guess that my War Gods cab I used to run UMK3 in has a separate harness for the coin door lights, only my UMK3 board has this header on it, it's like a 4 wire connector.

I don't think Blitz uses it, because both my Blitz cabs always had working coin door lights. my SportStation actually doesn't even have the header for the Vol Up/Down buttons, which is kind of a pain in the ass, cause the volume setting in Test, the song it plays isn't an accurate representation of how loud the actual game will be, but whatever.

is this a dedicated Blitz cab running Blitz 2000, or is it NBA Jam running Blitz 2000?
 
Interesting...

It started life as NBA Jam, was re-wired for NHL Open Ice (with the volume pot/test switch), then I thru the Blitz 2000 board in there.
 
dumb captain obvious common sense moment...

is the JAMMA edge on the Blitz board clean? perhaps one of the ground fingers that handles those grounds is a little fudged up with something? I don't know otherwise, unless it's a bad board. which, I don't know.

alternatively you could just run a wire off one of the logic ground terminals on the power supply over to the coin switches.

another way around that won't hurt things if you run NHL Open Ice in it.
 
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