The IGT S2000 replaced the s+. it was designed to be able to use the same game kits as the older s+ but with a more modular and reliable design for the hardware. you can tell the difference between and s+ and an s2000 by the rounded face on the button panel and its 3 speakers 2 above the door on either side of the machine and one under the door. Most s2000 repairs range between $45 and $150.
Images shown below are for reference only