I have a IGT s2000 5 line machine that is playable...but there are issues.
Symptoms:
Pull lever works even before hitting the bet credit button is pushed, (doesn't cause the reels to spin though).
The 1 thru 5 payline lamps stay on, as well as the spin reels button lamp, even before the bet credit button is pushed.
Both candle lamps stay lit at all times.
The machine has actually played properly a few times...meaning, the above symptoms weren't present, but all of the above problems came up only after a few coins played.