please help identify

[mr togue]

i have a lot of questions

i got my first slot machine

my friend had this machine and it is fully working  and complete but he likes the newer machines so he sold me this slot machine for 150.00 USA

first good deal?  it has all glass and is in pristine condition

second even though its complete the bill changer thingy doesn't take money i assume from the reading on forums that it has been disabled. can a person turn it back on?

i have the serial number and model number but heck if i can find any information about it any where

i think its a triple jackpot 3x 9x  2 coin
model number 9640090r     made on 3/94
serial number 461077

its a 2 coin triple jackpot machine that is not a round top machine  which is why i cant find any thing about the machine  ( mechanical drawing, how to change the programing to make it win more often  stuff like that

while checking out the machine i some how got a error 21 code but by following a instruction on this forum i managed to get the error code fixed ( you can bet your butt i wont be just randomly pulling out stuff and checking things out with out a specific reason any more,

like i said it is fully working and it has every part, i even have a few extra parts ( light bulbs )

where can i find documentation on it ?
how much do you think its worth?
did i get a good deal?
is there a way to make it pay out easier? i want people to have fun and it never really pays out its not fun

he gave me about 100 x 2 inch tokens to go with it
he had over 2500 credits on it
he made a wooden door with a by pass when you drop a token in and pulled out the coin ejector for the lack of a better word  so it was easier for his father to play the game

i have the original door and coin ejector thingy  though i do not know how it goes back in and he could not remember exactly how it went in

can you educate me ? thank you in advance

i guess i am asking why cant i find a square back machine like this on the net
i dont understand why if i search using the model number/serial  nothing comes up
i know its a igt machine but i can not find any info on the inner works of the machine
i do not under stand the difference between a igt s and a igt s+

any and all information i do know about slot machines is just recent and only  has come from reading this forum,, so thank you all

[shortrackskater]

You have an IGT S plus.
Read this first - it will help familiarize you with your machine. A lot of your questions are already answered here. 

http://newlifegames.com/nlg/index.php?topic=28444.0

[Tilt]

It's an IGT S+ slant top.  Search that and you'll find others.  They weigh a metric ton as you know.  Model numbers do not help us identify your machine.  IGT could tell you what they mean, but they won't because you're not a licensed casino.  They have little meaning to the rest of us.

Enjoy, it won't be long before you'll have another one!