My STTNG has never worked properly since I got it last year. I've worked on it off and on and can't seem to get anywhere. Some new problems came up today on top of the old ones unfortunately.

-flashers do not work. I changed br3-4 and 1 of the caps (I only had one cap so I forget the number but it was the top cap that I replaced). Did not fix the issue.

-when I put the board back in, the game started going haywire. It sounded like the game was in test mode with all the upkicks looking for a ball. It kicks the balls to the shooter and stages all the balls in the pf. When you start a game, it won't kick out any ball to the shooter, both guns constantly activate, and then the dmd freezes on Light Lock. Never had this happen before.

-in the coil test, the left flipper power and hold work, but the right and upper flipper only go through the power test ok (no hold). However, when you play the game all flippers flip and hold...just weakly.

-game constantly locks a ball when entering the subway. I cleaned the optos and they register. One seems like it easily falls out of alignment. Cleaning and realigning didnt fix.

Video...ugh:

Revisiting my STTNG. This time I'm serious. No giving up! Here are some results:

Left cannon home and mark switch closed

Right cannon home and mark switch closed

Both diverters test fine and get correct action

Solenoid bracket under Borg ship mangled, leaf switch fell off. Bracket reshaped. Need to replace switch.

All connectors in correct spots

Z-connector reseated

J118 controls the under pf opto board. It's getting 15V in the head but 0V at the opto board underneath the pf which leads me to believe there is a break in the wire. No visible breaks noticeable. Will have to cut wire at select points, create jumper, and heat shrink.

I'm betting the wire break and the Borg bracket not allowing the stop to stay up is causing the majority of the playability problems.

The flashers I have no idea about.

Here are some driver board readings at the test points:

TP1 (12V getting 15.1) OK?
TP2 (5V getting 4.91) OK?
TP3 (12V getting 12.1) OK
TP6 (50V getting 73.5) High
TP7 (20V getting 0.86) No Flashers
TP8 (18V getting 18.0) OK

Any problem with any of these voltages being too high for the TP's?

Just to reconfirm, TP6 is ok with that big of a voltage difference? 24V seems like a lot but I'm ignorant to this.

I'll check the fuses. None of them were visibly blown. All measured ok connectivity when inside the fuse holders.

Been getting through this. Found several things that needed attention.

-J106 was left disconnected. Noticed it when installing the ColorDMD. Somehow that got missed and that's why the opto boards weren't getting power. We traced the wire all the way back and thought there was a break somewhere between the head and under the pf. Turns out, it was just a connector. How embarassing but at least it was a simple fix!
-flippers needed to be rebuilt and new coil at the upper flipper so I can pull off the Picard Maneuver.
-bracket for Borg drop target (under the pf behind the ship) was mangled like somebody dropped the pf and destroyed the bracket so we had to put it in a vice and rebend it. The leaf switch was broken off also so we replaced. That's why it was constantly going into Borg multiball.
-optos in the subway needed to be realigned and cleaned
-upper diverter was gunked up & rusty causing the diverter to get stuck. Took it apart and cleaned & greased it with a light oil oer the owner's manual. Works fine.
-switch under the Romulan ship had the leaf come off. Had to take off the plastics and ramps and fix.

Haven't fixed the 20V flasher problem yet, so that's next if I can figure it out.

Game is awesome. That ColorDMD, especially in STTNG, is a must.

After we get it going better it'll be time for the 4 ship mods, pingraffix sideboard decals, extended lane guides and some cliffy's.