LED's on S2000 CPU

[rjpohl]

Looking for explanation of the LED's on the CPU.  If anyone can add what each LED is for and what it means if light or not.
Here's what I have now:
after performing the key17 only the second amber light is lite.  Is the first amber light memory on CPU board.  I think 2nd light is for memory on backplane by not sure.  I tried a second board and both lights lite after the key17.

thanks
Bob

[Tilt]

This attachment explains the LEDs that should light when using a keychip.  I thought key 31 was the key to use for later S2000 SG software?

[stayouttadabunker]

As far as I know, Keychip 31 was designed for SB/SG000363 and higher chips.
Keychip17 is for SB/SG000363 and lower?
I remember reading it somewhere...

[rjpohl]

the condition I have is:

If the right LED lights, but not the left, the key chip failed
because the processor board identification does not match.

How's this corrected?

thanks
Bob

[cowboygames]

Only time I ran into this was when I forgot to cashout all the credits first. Maybe check the legs on the chip also to make sure they're not bent, dirty or broken

[Tilt]

Or maybe a different key.  What SG version is installed in the machine? 

[cowboygames]

I've been told the Key 45 is the best if you can find one. Works on all variations of the S2000 is what I've heard. Also heard it's pretty new and not easy to find. A KEY 31 would work on anything from S2000 inception to the models in production when it was introduced. I use it on early models through vision stuff, which covers all the 500 series boards and chips from 2001 thru 2006. For that matter my origional Key 17 worked on 2006 origional chips also

[Buzz]

Here are 30 S 2000  Most of them have SG000155 game chips, a few have SG000523. ALL of these machines have been cleared with a 97 clear chip and keyed with a Key 31 !!!!!!!!!

For me in the last year, a Key 31 has been successful 100% on the time on 85   S2000s   

[Tilt]

Very nice Buzz!  You made me thing of something else too. 

Bob you might try clearing the machine first, and then keying it.  The processor ID is unique to each S2000 board and it is written to the EEPROM on the backplane when the board is installed and your go through the RAM error, press and hold test button, EEPROM error, press and hold routine.  If you put a different board in the machine without clearing (via a clear chip) or updating the EEPROM through the bootup process (with the normal base chip installed) then it the processor id on the board and eeprom wouldn't match.  That's what the LEDs are trying to say it would appear.