Found this in one of my manuals....don't know if it'll really help much but figured it was worth a look!!
4.3 Key Chip ProcedureKey chips are used to perform certain machine activities that are sensitive or require higher authority than the normal technician with access to the Operator menu. The key chip is required to change machine parameters such as the denomination, pay table or selected games. Follow this procedure to use the key chip.
Note: The key chip version must be compatible with the base EPROM on the processor board being changed.
1. Verify that there are no tilts, credits available, or games in progress on the machine.
2. Use the procedure in Section 4.1 to remove the Base EPROM from the processor board and replace it with the key chip.
3. Reinstall the processor board in the machine.
4. Turn the machine power on. When the key chip has been recognized, the two amber LEDs farthest from the operator switch light and stay lit.
• If the left LED lights, but not the right, then an error occurred. Repeat the procedure to verify that the key chip is correctly installed.
• If the right LED lights, but not the left, the key chip failed because the processor board identification does not match.
• If neither LED lights, the key chip is bad.
5. Turn the machine power off and replace the key chip with the base EPROM.
6. Reinstall the processor board in the machine.
7. Turn the machine power on and the key chip menu appears on the LCD.
8. Perform the setup changes necessary and exit the key chip menu. Refer to the procedures in the Key Chip Menu section for detailed information.
Note: The key chip menu times out after approximately two minutes of inactivity. IC Chip and Flash Memory Card Procedures GAME SOFTWARE: VISION SERIES PRODUCTS – RELEASE 9 4-8 January 15, 2003
4.4 Clear Chip ProcedureThe clear chips are required to clear RAM, EEPROM or both. Use Table 4-1 to determine which clear chips are necessary to perform the clear operation desired.
Note: Clearing RAM will erase all accounting and event information from the machine. Clearing EEPROM will reset all machine and game setup parameters to defaults. Clear chips are not available in all gaming or lottery jurisdictions.
Contact IGT or the appropriate agency to determine whether these chips are available in a particular jurisdiction.
1. Verify that there are no tilts, credits available, or games in progress on the machine.
2. Use the procedure in Section 4.1 to remove the base EPROM from the processor board and replace them with the set of clear chips (refer to Table 4-1).
3. Reinstall the processor board in the machine.
4. Turn the machine power on and watch the two rightmost, amber colored LEDs on the processor tray next to the test switch. The following table lists the memory conditions that are indicated on the LEDs.
Table 4-1.
Clear Chip Configurations
Chip Number* Description
IVC00097 Clears all RAM and all EEPROM
IVC00096 Clears all RAM
*Numbers subject to change; current as of publication date.
Table 4-2.
Processor Board LED Indicators
LED Status Memory Condition
Both OFF Program CRC is incorrect or the test is still running
Alternate flashing Both RAM tests failed
Right LED flashing 256K RAM good
GAME SOFTWARE: VISION SERIES PRODUCTS – RELEASE 9 IC Chip and Flash Memory Card Procedures January 15, 2003 4-9
5. Turn the machine power off and replace the clear chips with the base PROM.
6. Reinstall the processor board in the machine.
7. Turn the machine power on and follow instructions on the screen to clear the error messages.