Donkey Kong Jamma conversion without destroying it's integrity

mespendez

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Donkey Kong Jamma conversion without destroying it's integrity

Just wanted to give something back to the community.

This is a recount of how I converted my Donkey Kong cabinet to JAMMA while maintaining it's original integrity.

Actions Taken:

WIRING:
- Created a JAMMA harness and divided the wires in corresponding bundles.
- Disconnected all original wiring, tied it neatly in a bundle and stored it.

POWER SUPPLY:
- Disconnected the original PS and stored it.
- Purchased a HAPP Power Pro 15 Amp PS and connected it to the ISO transformer.
- Used wire taps to piggy back the AC power while maintaining the integrity of the original PS connector.

CONTROL PANEL:
- used the CP factory wire connectors on the Control Panel side.
- Purchased a 4-pin and a 10-pin connector on the jamma harness and carefully matched the CP pinout. This way I preserved the CP wiring integrity.
- I have two different Control Panels (Both original DKs) and installed an 8 way restrictor plate on one. This way I can change them depending on the game. I will also created a custom CP to which will house a single trackball and buttons.

MONITOR (SANYO 20EZ):
This was the trickiest part!
- Since the original DK monitor did not bring a video inverter board, I purchased one and obtained the power directly from the power supply.
- After connecting a Dig Dug board (with JAMMA adapter) I realized that the screen was inverted. After some searching I found a way of fixing this by flipping the yoke wires. I cut the wires and installed insulated QCs to allow easy switching whenever needed.

REMAINING:
- Plugged the Speaker wires with a spare connector
- Attached the Coin and maintenance switches
- Performed cable management by using the cable ties already installed in the cabinet.


Now I can plug JAMMA boards to the cabinet and play to my heart's content (As long as the Control Panels match the game requirements of course).

Now I can always re connect the original harness and PS to bring the Cabinet back to it's original vintage state.


I hope this post can help others who may want to convert their Nintendo Cab to JAMMA and still preserve the original game integrity.


CHEERS!!!
 
I used a 6 -1 in mine.
It came jammatized already though.
I have all the parts to return it to OEM.
For the picture flip I extended the yoke wires to the coin door and used connectors rated around 400v iirc so I can flip the screen easily.
I wired the connectors so the horizontal and vertical wires can't be interchanged by mistake.
I mounted the switcher under the coin box shelf and used extender harnesses to each pcb.
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Print out instruction on how to convert it back helps.
Make a video and put it on a DVD..
Of course with usb drives jump drives being cheap you can not only put a how to put it back together but the manual and any other side notes.
 
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