Battlezone High Score Save Kit -- Installation Guide
Step 0: Make sure your game is fully working
Before installing this kit, make sure your Battlezone
game is fully functional.
This kit can only work in a fully functional game.
Step 1: Turn off power to the game
While it may be possible to install this kit without removing your
board from its cabinet, you will find it easier to install
the kit if you do remove the board.
Pay careful attention (or label), any wire
connections as you disconnect your board so that you can
correctly rehookup the game PCB afterwards.
Take note of which side of the PCB edge connector is facing the
parts side of the board and which side faces the solder side,
The connectors are sometimes 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 and remove the game PCB
For Battlezone upright, the game PCB is usually attached to the left
side of the cabinet (as viewed from the front).
The board may have a screw attaching the boardset to the side
of the cabinet, which will need to be removed so that the
boardset can be removed for easy access.
Battlezone main PCB
(6502A Analog Vector Generator)
Battlezone AUX Board
Step 3: Remove the 6502 CPU chip
Locate and remove the 6502 CPU chip on the boardset.
Use the images below to assist in locating it.
See 6502 Chip Identification
for additional information.
The 6502 CPU chip is a 40 pin (large) chip, located at M3
It is the only 40 pin chip on the boardset.
Remove the chip gently by using a flat head screwdriver
to pry it out of its socket from each end.
Some of the Atari boardsets have open frame sockets which
do not protect the PCB traces.
Be careful not to scratch any of the PCB traces underneath the socket.
Also be careful 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.
Battlezone 6502 CPU location
6502 CPU Removed
Step 4: Insert the 6502 CPU into the daughter card
Insert the just removed 6502 CPU 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 6502 CPU 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.
Pin-1 is also labelled on the kit pcb with a "1".
If the 6502 chip is installed backwards it will cause
permanent damage to the 6502 chip.
Click images for a larger view
Battlezone HISAVE kit
Kit with 6502 installed
Step 5: Insert the daughter card into the boardset
Insert the daughter card back into the 6502 CPU socket on the
boardset where the 6502 CPU chip was originally removed from.
Again, make sure pin-1 of the 6502/daughter card is oriented
to correctly match pin-1 on the boardset.
Use the photos as a guide.
Step 6: Double check your work
Review the steps and double check that 6502 CPU 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
6052 CPU socket at M3 with pin-1 matched up.
REPEAT: If any of these devices are installed backwards
it will cause permanent damage to the devices!
Step 7: Powerup and game and enjoy!
Reinstall your board into the cabinet, hookup the edge connector
with the original orientation and then powerup your game.
If the game does not come up, turn power off immediately,
double check your work, and read over the
trouble shooting section.
As a side note, if you want, you can also remove the
old code eproms.
These are located at the edge of the board near the 6502 CPU location.
See code eprom picture.
Easy to clear out the high scores when desired.
Simply put the game into selftest (using the cabinet selftest switch).
Once in selftest mode,
press (and hold) the start button and the fire button.
The screen will imediately show "ERASED" indicating the high scores
have been cleared out.
This is a similar procedure used by other atari games.
See Clearing High Score table for detailed directions.