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PCB Help Needed - Crazy Kong Alca Bootleg?


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Hi All

 

I bought a Crazy Kong board from US.

 

It arrived and looks to be in great shape, other than a few of the tinned tracks falling off the copper in the edge connector.

 

I made up a Jamma Adapter http://members.iinet.net.au/~getderrick/IMG_0516-sm.jpg

Bigger pic here

 

I checked it and powered up the board on the test rig, but nothing on the screen.

 

I figure the Jamma adapter pinouts are Not Correct (I used the 36 Pin Falcon ones)

 

The IC's have power, 5V is present.

 

Has any one seen this kind of board before? (2 Board set)

If so do you have the correct Pinouts to suit, (I beleive it is the same board as Monkey Donkey)

 

http://members.iinet.net.au/~getderrick/IMG_0517-sm.jpg

 

http://members.iinet.net.au/~getderrick/IMG_0530-sm.jpg

 

Bigger Pic here and here

 

Any help is appreciated

 

Dez

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Thanks GIBO that's awesome, the 2ND last diagram looks like the correct one, only it is back to front to mine.

 

It says O, P, Q & R are GND Assuming O for Speaker is (-ve)

 

- - - - - - - - - - - - - - - - - - - - - - - - - -

 

But this pic of my PCB (below) is 180 Degrees out of wack from that.

 

I.E. 1, 2, 3, 4 are GND as marked on the PCB.

 

see http://members.iinet.net.au/~getderrick/CK-5-known-pins.jpg

 

I suspect when it (the 2nd last 36 pin board in your link) was mapped out, the pinouts were from a board which didn't have 1A or 18A Labelled on the board like here (Mind you I am still very greatful to him/her)

 

http://members.iinet.net.au/~getderrick/1A-18A.jpg

 

I once read on an eBay site, that someone was selling a Crazy Kong board, which was hooked up 180 degrees out, and blew up every chip. (It didn't sell BTW) LOL

 

This is the reverse of the Pinouts, and it makes sense.

 

http://members.iinet.net.au/~getderrick/ProposedPinoutsCkong2PCB.jpg

 

The above Diagram is my proposal, based upon an exact opposite of this BELOW

 

http://members.iinet.net.au/~getderrick/OrigPinoutsCkong2PCB.jpg

 

 

NOTE:

All the vital pins line up in the following diagram IE 5V, GND and 12 Volt, so NO smoke is expected . . . . I hope

 

Anyone see anything wrong with this theory?

 

Dez

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It wouldnt be the first time the pinouts provided on a website have been wrong or back to front.

Biggest problem I see is that the pinout does not describe the point of view as in looking at the PCB looking at the edge connector ... you probably wired your video pins to the wrong spot

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I reworked the jamma adapter to the proposed chart above

 

It failed, but not entirely . . . . .

 

The 4 video wires were correct so I was able to sort the player inputs through trial and error.

 

The result was the chart below

 

http://members.iinet.net.au/~getderrick/PinoutsCkong2PCB.jpg

 

This actually works, and I player the game to the 100m Level, and was able to go behind the monkey at the uppermost platform.

THIS CONFIRMS THAT THIS BOARD IS AN "ALCA BOOTLEG" (The best version IMO)

 

I need to get the sound going now, as all the sound components are missing

 

Any ideas DKONG? Does yours have sound on the same PCB?

Dez

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I will have a better look tomorrow ( when my peepers are more wired ):)

Going from memory there is a pot you can adjust on the board ( maybe to slow-speed the game up) or is it the volume will check tomorrow and let you know

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It does have a 4066, I am happy to wire an ext Amp

 

Mine doesn't even have a pot, it's missing a dozen or so parts including the 10 pin Amp chip

 

There is also a Video issue on this board too.

There is a broken line (a few pixels high) accross the Monkeys Face on all levels

 

I may have a loose socket or bad ribbon cable.

 

Does anyone know where I can get a new ribbon cable?

 

Dez

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This is a Monkey Donkey PCB from an Auction last year, I missed out on winning this one. Notice how it has the Volume Pot and Amp chip on it, also a LED on the other side. What is the LED for?

 

http://members.iinet.net.au:80/~getderrick/MonkeyDonkeyPCB.jpg

 

My one below

 

http://members.iinet.net.au/~getderrick/CKONG-ALCA-Bootleg03.jpg

 

Dez

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I got the sound working on an external Amp.

 

Boy is it loud, coz theres no volume control

 

I want to put a pot on the input side to control the volume

 

I tried 5k, but it was the same volume for low and high

 

Anyone got a rough idea of a suitable value?

 

Maybe 200K ohm?

 

Thanks Regards Dez

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I am using one of them small 7w stereo ones off ebay.

 

I will try the 50K and see how it goes

 

I saw a Pic of the same board I have, with a sound amp hanging off the side.

 

 

http://members.iinet.net.au/~getderrick/AlcaBootleg05sm.jpg

Big pic here

 

 

I have put my amp on the Jamma Adapter instead, I might have the Pot remote, so it's accessible to the open Cab door.

 

EDIT: Tried 200K resistor in series with 100K Pot on the input side of Amplifier, seems to be suitable rance of volume, Maybe still a bit loud. Think I may try a 200K Res and a 200K Pot.

Dez

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Ok, Now it's 2x 220k resistors in series with a 500K pot, on the input side of the sound amplifier, its a good balance, who would have thought almost 1M ohms would be right!

This is only for the archive (I realise its a 1 sided post)

Dez

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  • 2 years later...

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