IGT Error 61
 
61 Bad CMOS RAM Bad CMOS RAM data, or data was cleared.
1. Replace the CMOS RAM chip on the processor board and depending on configuration,
press the self test switch, or turn the reset key for at least 3 seconds.
2. If the error persists, replace the processor board.
my want to double check the Test Sw and reset switch.
 
If you get the 61-1 and can not clear that - then you need to make sure you are getting a door closed (Check The Door Optics)
 
 

 
 
Mother Board – Mounted inside Game ---  Game Board (CPU) slides into game
 
If you replaced the Game Board (CPU)  – your problem my be on the Mother Board
Also known as the Backplane board. There is only one (1) IC on it.
The 24C04 may need to be changed.
 
my want to double check the Test Sw and reset switch.
If you get the 61-1 and can not clear that - then you need to make sure you are getting a door closed (Check The Door Optics)