Im having a troublesome issue with my Stargate.
Tournament mode works well, and the game is set on free play.
Mostly all LED lights.
New shooter lane switch, sarcophagus switch, outhole switch, trough switch.
A "light" spring was added to the trough gate to keep balls from bouncing back and triggering false ball counts.
New outhole coil and ball release coil.
New cabinet flipper switches.
Flippers completely rebuilt with complete kits from PBR.
Optos checked and cleaned
Drop target assemblies cleaned and inspected.
Kicker targets cleaned and rebuilt.
All connectors in the game have been reseated, all chips reseated, V4 game ROM and V3 DISPROM installed.
ColorDMD installed with German repro "clear" speaker panel plastic.
Sound is crisp and minimal hum from the cab speaker.
The game plays fast and powerfully and is a "joy" to play!
All switch test and lamp tests are perfect.
During extended gameplay, during multiball, the game loses track of the ball count.
The multiball modes end early, with as many as 3 balls still in play.
The flippers die and the balls drain out.
The it sets up ready for the next ball.
This doesnt happen in all games, and it happens on random mutliballs, sometimes twice in the same game.
It is mostly apparent in a Ra's bracelet mode when all 4 balls are in play, drain one ball and the mode ends draining the other 3.
Again its random and can happen in the glidercraft multiball but only have 2 balls during the mode but when 1 drains the flippers die and the mode ends.
This never happens in a short game, but always happens in a long "great" game.
This happens with the original trough switch as well as the new one recently installed.
It does not seem to be a TILT or a SLAM as there is no indication on the screen.
Problem #2 (could be related to problem #1)
If I take out all 4 balls and replace them "one by one", the outhole solenoid hesitates for up to 3 seconds to fire on the first ball but seems fairly instant on the last 3.
The outhole coil is plenty strong (and its the correct coil and resistance is perfect on it). but it isnt strong enough to clear 2 balls in the lower side of the trough.
It seems that the outhole kicker might also die when the flippers die?
This is somewhat of a problem as, when the mode ends early and flippers die, sometimes 2 balls can get trapped in the lower part of the trough and then the game is unplayable until I remove the glass and manually help one of the balls over the top to the higher side.
Wall voltage is a fairly continuous 117v to 121v.
I havent done any "ground" mods.
I have gad the game for a few months and this behavior is recent.
Any insight to this would be helpful