Help ID this

[RobinAK]

Hey so I found this guy laying inside the top cabinet of my S+ RW&B machine. Any ideas what it is? I know its a prom but what for? Here is photo of it.

[jay]

Its a 27C512 chip. That makes it a 512k eeprom.
The S+'s use 27C256 but you can write/burn the 512 chip with an Offset so it will work in replacement of a 27C256


The sticker with the numbers don't give any indication as to its relation as a S+ chip.
It would make sense that if someone was leaving random chips around It could be a SET chip or Clear Chip.
It could also be a game chip or reel chip -
 no way of knowing except to throw it in a burner and do a read.
The first couple of bytes usually indicate the chip number.


If you don't have a burner - you could replace your game chip - careful to make sure you don't bend any pins when removing it, and when putting this chip in, make sure the notch on the chip faces the same way as the notch on the socket. When you start up your machine you will have an indication of what the chip does by the codes on the winner paid / credit meters or simply the absence of any code which migh make it a reel chip or blank chip.
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You won't hurt the chip or the machine by doing this but.... if its a set chip you could potentially disable your bill validator, if its a clear chip you might reset your machine back to factory defaults - in which case you will need a SET chip to re-enable your bill validator. IN either case just putting the chip in doesn't take these actions you need to select these actions by pressing various buttons. Check out Ricks FAQs on our main page regarding the use of SET and Clear chips.


If its a reel chip you will get nothing.


After which put your game chip back in - again careful not to bend pins and ensure the notches are the right way.