S Plus Clear Chip Function

[CommTech]

I have owned an S plus machine for years and I never needed to use a Clear Chip.  In fact, I have Two S Plus machines and I have never owned a Clear chip.
I have also searched through all of my documentation and find no mention of the use of a Clear chip.

Does anyone have any official IGT documentation on when to use a clear chip and exactly what it does to the machine?

My understanding is that the whole reason for a clear chip is to wipe the data from the EEPROM in the event that the EEPROM's data gets corrupted... Am I understanding this correctly?
I have also read (from this forum) that it clears all of the machine setup data (I am guessing that it sets it to some factory default values???), so I guess it must also clear the EPROM located on the processor board as well? 

Am I missing anything?  I just would like some solid information on exactly what the clear chip does to the machine.

Thanks!

Joe

[knagl]

Does anyone have any official IGT documentation on when to use a clear chip and exactly what it does to the machine?

I do not.

My understanding is that the whole reason for a clear chip is to wipe the data from the EEPROM in the event that the EEPROM's data gets corrupted... Am I understanding this correctly?
I have also read (from this forum) that it clears all of the machine setup data (I am guessing that it sets it to some factory default values???), so I guess it must also clear the EPROM located on the processor board as well?

Per this post from Poppo on the old site, the clear chip erases the data on the EEPROM found on the motherboard, and also the CMOS found on the MPU/processor board.

[Ron (r273)]

Here is an old list I have.