nibbler board indentification

Hurray Banana

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HI,

Got a nibbler board that I need to identify.

Nibbler_working_and_other_nibbler.jpg


The one on the left in the first picture is a working game (although no sound) for which I have an adapter.

The right hand picture is a different board and the edge connector is different (not the same common edge connectors as the one on the left).

Can anyone point me in the right direction here so I can knock up an adapter to test the right hand board.

Here's a close pic of the unknown nibbler

unknown_nibbler.jpg


cheers
 

Hurray Banana

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Put an adapter together thanks to Garry's help

this appears to be a taito licensed version

taito_nibbler.jpg


Got some issues with some roms (tile collisions and tile issues when chips pressed)and funky sync on right hand side where credits displayed.

nibbler_funky_tilemap_collision.jpg


Picture upside down in my cab managed to get 30570 with controls reversed!

30570_nibbler.jpg


Hurray Banana2015-03-31 17:09:57
 

alexforg

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Hi, I have a card identical to the one on the left in the first photo. Can I ask you for the pinout or photo of the Jamma adapter. I noticed that there is GND in pins 20-21-22 parts side. This is not the standard Nibbler pinout.
 

Mc-Q

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that right board is 100% Vanguard - you have the speech sub-board on it.
maybe it was converted, afaik nibbler never had speech
 

alexforg

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in the first image of the post the PCB on the left definitely has pins 20-21-22 to GND and does not correspond to any Vanguard pinout.
 

Mc-Q

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the left board is very different when you look closely,
but i still dont know why it has the socket for a speech board.
maybe it was not originally nibbler.
i dont know enough about those early snk boards to know what other games may have used a sub-board for extra sound or speech.

so left board is a mystery, but the right board is vanguard.
 

TheDaddy

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I think I have one , Unsure what one it is bit i know I had to make an adapter. Unsure where I got pinouts but will have a look when I get 5 minutes later.

Dave.
 

TheDaddy

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Ok sorry to disappoint but mine is the one on the right (Or close to it) not the left so the pinout is different if yours is the left one :-

20231229_191706.jpg

You have a few options here , Either read the roms and see what if its a conversion of another game or work out what each one is by tracing. The one on the left looks like a Bootleg ?? Not 100% though.

Its fairly easy , Start with the power and move to the video and then controls.
 

alexforg

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Thank you very much, I will definitely test it by tracking and build a dedicated adapter. I was intrigued by the photo at the beginning of the post because the pinout is exactly that of my PCB and I thought a commercial adapter already existed. Does nothing. Thank you all for your availability.
 

Mc-Q

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looking at mame,
it's gonna be one of these:
Games supported:
* Sasuke vs. Commander
* Satan of Saturn [2 sets]
* Zarzon (clone of 'satansat')
* Vanguard [3 sets]
* Fantasy [3 sets] G-202
* Pioneer Balloon G-204
* Nibbler [4 sets] G-208
 

Mc-Q

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looking at the mame source more,
the speech board was fitted to vanguard AND fantasy.
so maybe the left board started as fantasy - it has the music rom still fitted that was NOT part of nibbler too.
nibbler should have an empty rom socket where the music data is.
 

myPinballs

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The one you have no adaptor for is the same as the one I used to have.
The PCB was used, in various guises, for a few different games made by Rock-Ola and SNK.

Try the pinout listed for Vanguard.
the left board is very different when you look closely,
but i still dont know why it has the socket for a speech board.
maybe it was not originally nibbler.
i dont know enough about those early snk boards to know what other games may have used a sub-board for extra sound or speech.

so left board is a mystery, but the right board is vanguard.
As far as i know and the info i gathered whilst repairing one. The left board is nibbler. Rockola used old stock to make nibbler. It doesn't use the speech board but the lower board has the socket on it because its reused factory/surplus stock , money save from a game (vanguard) that didnt sell. It may even have been that management went to engineering and said 'make something that we can sell using this hardware so we can get shut of it'

Factory conversion of old boards by the manufacturer were not uncommon back in the day because of the expense of making new hardware etc
 
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