[3300] is an error code that means that too much time elapsed from when the last coin went thru the hopper optics...in other words...the coin hopper is empty.
Some people like to hear the coins fall into the tray on every hit.
If you depress the cash/credit button once, all wins will accumulate to a credit display.
From there you can play them off with the MAX bet button if you like...lol
Stuck test button.
Turn off the power first.
Shoot it with some WD-40.
If that doesn't work, take out the test button and service it.
If it needs cleaning, clean it and get it working correctly or replace it with a another one.
You need to b a contributing member to get into the download area of NLG.
That's at the bottom of the NLG home page...>>>
https://newlifegames.com/nlg/