Error 61 is a standard error after a game change. Under normal circumstances you should be able to clear this without any special chips.
See the Game change section of Ricks Faq's (Blue button in the middle of our home page) or the link below.
http://www.newlifegames.net/faq1/We have had several people complain that their 61 won't go away - this usually occurs after a battery change (error 12) and the CMOS has been screwed up.
There are two CMOS chips - one is on the fixed board (Motherboard) and the other is on the MPU (removeable board). These two chips have to be in sync as this is how gaming statics are tracked.
When this occurs there are two chips you need.
Clear Chip.
Set Chip.
The purpose of a clear chip is to wipe both CMOS and bring the game back to factory new condition.
To use a Clear Chip you (power off) remove the MPU board, simply replace the game chip with the clear chip - please pay attention to the small knotch on the chips as if you put them in backwards you fry the chips.
You press the Self test button and the coins played will begin counting down when it gets to 0 the clear is complete and you can then remove the clear chip and insert the game chip again.
Once again you will have a 61 which is standard - but follow the instructions in Ricks Faq pertaining to a game change and it will clear and the game will play.
You will however find that things like reel sounds, stop sounds, are absent and that the hopper limits etc are all back to factory settings.
Following the PSR (Program Summary Report) you can then use the self test button to step through the menus and turn these features back on and change settings to the desired values.
Each game chip has a unique PSR - If you post what Game chip you have some kind soul will probally send you a PSR. Again you will find in Ricks Faqs the way to determine your game chip.
R273 has also written a "simplified" guide to the PSR as they are not the most straight forward document for a new owner to read. Once you have these two documents, reading the PSR will macke much more sense and you will be reading PSRs quickly.
The other thing you will find is that the bill validator will no longer work. You need the SET chip to set the denomination so the DBV knows how many credits to give for a dollar.
There are also several different SET chips. The PSR will specify which is the best one to use.
Generally speaking a Set 15 or Set 26 are pretty universal. A set 15 does nickle, dime, quarter, dollar etc. While a Set 26 also allows the use of Pennies.
there are also other set chips so I again recommend requesting the PSR and following the recommendation.
To use the Set chip you again remove the game chip, insert the set chip.
The specific instructions can again be found in Ricks Faq
Hope this helps.