Atmel Flash Memory Installation Procedure on CPU/Sound Board II only:
Step 1: Turn Pinball Game OFF (remove backglass for procedure).
Step 2: Remove the current Sound EPROM at U7 and replace with Bootflash O/S 8 Sound EPROM in its’ place.
Step 3: Move the jumpers at locations JP2, JP3 & JP4 to the opposite position.
Step 4: Turn Pinball Game ON. Wait for LED1 to start flashing continuously (this indicates flash procedure was successful). Note: This usually takes a few minutes.
Step 5: Turn Pinball Game OFF.
Step 6: Remove Bootflash O/S 8 EPROM at U7 and replace with original EPROM you had just previously removed.
Step 7: I M P O R T A N T ! ! >>> Move Jumpers JP2, JP3, JP4 back to their original positions. (JP2 = RIGHT, JP3 = BOTTOM & JP4 = TOP)
Step 8: Turn Pinball Game ON. Watch LED1 upon power-up. The LED1 will flicker then flash 8 times.