ST TNG is a demanding game to have working 100%. I think Bally / William's Engineering dept really earned their pay on this title. Even as a widebody, there is a lot going on in this game, and if it is not working 100%, the game simply does not play right. MANY games I've looked at that are "shopped out" are not working because of the plethora of side cuts that can be taken in this game !
The Subway Ramp - If this is not done properly, the game will get VERY confused and launch balls at random and provide endless hours of entertainment as the game basically "plays with itself"..
As I start dismantling, I see the same problems - The ramps are broken at the ends. This is because the operator / technicians didn't use the "empty all balls" funstion in the setup menu ! The balls in the ramp smash down to the bottom of the ramp.
So I order a PinballInc Ramp from RTBB ;
.. and now it has a new subway ramp fitted. This is a CRITICAL part of the game.
Hows this for inventive running repairs ?
The trough opto boards were replaced with Mike's boards from HOMEPIN. Not worth the risk using older boards. Fix the subway ramp, the trough optos and the cannon wiring loom and you have 99% of the problems solved on this title.
.. and a cliffy protector for the ball launch / catapult.
Here's where all the hard work starts to pay off. Playfield is buffed and waxed after a full strip and clean. Metal parts are tumbled, hand polished or regrained. Pop Bumper parts are REPLACED. Really looks good..
New plastics, plastic protectors and ramps are next !