Date: 01-21-00

Game: Offroad Thunder 16-11068

Subject: Software Upgrade to version 1.4.6

This update corrects the reduced price buy-in feature in standard and custom coinages, loss of controls, and intermittent resetting.

Please follow these instructions when doing the upgrade:

Turn power off to the game.
Remove back door.
Insert floppy diskette into the floppy disk drive.
Turn power back on.
Follow instructions on the screen.
Do not turn off the game or remove the floppy disk until told to do so on the screen.
When told, turn off power and remove diskette.
Turn game back on.

Because of static conditions, a small percentage of games may still exhibit a loss of controls occasionally. If this occurs, a cable adapter (Part # H-23741) is included. These symptoms indicate a static discharge problem on the steering and brake pot wires. The symptoms may occur more frequently during the winter, or in dry, static-prone environments. The anti-static cable H-23741 connects between the MagicBus Board and steering / brake /gas cable.

[ ] 1. Switch off power to the VGM.
[ ] 2. Following instructions in your manual, access the MagicBus.....board.
[ ] 3. Disconnect the cable at MagicBus.....connector 3JP15. This is the steering / brake / gas control connector.
[ ] 4. Find anti-static extension cable H-23741, that came with these instructions. Check the position of the Z-header on the cable. The header must be on the end of the cable that has ground jumper loops. Otherwise, move the header to the other end of the cable.
[ ] 5. Attach anti-static extension cable H-23741 at MagicBus.....connector 3JP15.
[ ] 6. Attach the original steering / brake / gas cable to the anti-static extension cable.
[ ] 7. Replace and lock all doors that you opened when accessing the diskette drive.
[ ] 8. Switch on power to the VGM.
[ ] 9. Check to see that the VGM accepts coins and plays normally. If the VGM performs satisfactorily, proceed with the next step. If the VGM doesn't perform satisfactorily, go over your work. Check for loose or improper connections.
[ ] 10. Replace and lock all doors that you opened when accessing the diskette drive.

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