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Braze Technologies
Innovative solutions for the "classic" arcade collector

Donkey Kong / Donkey Kong II
Multigame Kit -- Installation Guide

Step 0: Upgrading your kit from Donkey Kong to Donkey Kong II

If you are upgrading your original Donkey Kong High Score Kit to Donkey Kong/Donkey Kong II Multigame Kit, then remove and install the two chips as shown in the diagram:
Note: Be sure the notch on the end of the chips are pointing the same direction as the chips on the board!

* Chip Upgrade Only *
If you ordered a complete DK/DK II kit, skip this and go to Step #1.

Step 1: Turn off power to the game

It is possible to install this kit without removing your board from its cabinet, however, you may find it easier to install the kit if you do remove the board. In that case, pay careful attention (or label), any wire connections as you disconnect your board so that you can correctly rehookup the game PCB afterwards. If your board uses the large 44 pin edge connector, take note of which side of the connector if facing the parts side of the board and which side faces the solder side, This connector is typically not keyed and can be inadvertantly plugged in backwards - ouch! It is recommended that you label the connector faces with something like "parts side" or "solder side".

Step 2: Locate the CPU board

There are 3 different types of boards this kit can be installed into. Locate the CPU board for your type of Donkey Kong Board. In general, the installation is the same between board types, only the Z80 chip location is different.
CPU Boards
Click images for a larger view
Donkey Kong
Donkey Kong 4-Board

Step 3: Remove the Z80 CPU chip

Locate and remove the Z80 chip on the CPU board. Use the above photos to assist in locating it. The Z80 chip is a 40 pin (large) chip, located at 7C (for the 2-boardset games or 5C for the DK 4-boardset game). Remove the chip gently by using a flat head screwdriver to pry it out of its socket from each end. Becareful not to bend any of the pins. If any pins do get inadvertantly bent, you will need to straighten them out before the next step. Needle nose pliers work the best for this.

Step 4: Insert the Z80 into the daughter card

Insert the just removed Z80 chip into the empty 40 pin socket on the High Score Save Kit. Make sure pin-1 is correctly oriented. Pin-1 is marked on the Z80 chip usually by some type of indentation or circle molded into the plastic. The end of the chip with the marking, needs to match up with the socket on the daughter card that also has a marking on the plastic. There should also may be a small sticker on the daughter card marking pin-1.
Pin-1 Identification
Click images for a larger view
Z80 CPU Chip
High Score Daughter Card
Pin-1 Identification

Step 5: Insert the daughter card into the CPU board

Insert the daughter card back into the Z80 socket on the CPU board where the Z80 chip was originally removed from. Again, make sure pin-1 of the Z80/daughter card is oriented to correctly match pin-1 on the CPU board. Use the photos as a guide.

The header on the daughter board has pins that are more heavy duty than the original Z80 pins, thus you will need to press very firmly to get the daughter card to be fully inserted into the original Z80 socket.

Step 6: Double check your work

Review the steps and double check that Z80 is properly installed into the daughter card with no bent pins and that it is correctly oriented for pin-1. And that the daughter card is also installed snug into the z80 socket with pin-1 matched up.

Step 7: Powerup and game and enjoy!

Reinstall your board into the cabinet if necessary, and then powerup your game. You should immediately see the bootup screen. You will have 5 seconds to press P1 and enter setup mode, or the game will timeout and automatically transition to gameplay mode.

If the game does not come up, turn power off immediately, double check your work.

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