No, not at all. I meant the controlled +6V yellow-green wire, as opposed to the ground. I added the missing link yesterday and it all works fine now.

Yes, I take the power from some nearby GI socket.

So with the playfield still out of the cabinet I am finally ready to start a game to make sure eveything works as it should. I can't start a game using the start button. Nothing. The switch does work in test mode. The game is set on free play. What's going on?

Also, the clock hour and minutes hands don't quite line up at noon. Can I line them up without having to take the whole clock out and apart?

Thanks for the heads up. I have all balls loaded (5+1) but it could well be that they are not correctly set. I'll look into it.

The autoload was seemingly working correctly, but when I did the gumball test, it showed a problem with the geneva switch that's underneath the playfield and records the rotation of the ball tray (I think). It was indeed loose. I ordered a new one. I hope this will solve the problem. The 9.4 Rom seems a lot less forgiving when it comes to issues. This is not necessarily a bad thing.

Geneva switch now fixed. The gumball tests seem all fine. Still no go. Arrgh.

I checked my Start button switch and it seems to work ok.
Sounds like I need to drop a post on the TZ owner thread.
Is your 9.4h Free Play only?
I could also ask the Coin Op Cauldron for some pointers.

Thanks a lot for the pointer. I replied to the thread to see if this was ever resolved.
I did have two fuse warnings at some point, but they disappeared after I changed F115. Could still be an issue though.

Yes, all optos are registering correctly. I haven't checked the through proximity sensor though.
The start does absolutely nothing. Not even a display. But the switch registers. I can't put a credit on.
I tried changing the free play in the pricing adjustments but it was on Free Play Only. I'll take a look again.
I'm trying the look at the positives. It forces me to check everything before putting the playfield back in.

I just found out last night the Start switch was incorrectly wired. It registers, but not as the Start switch. I'm going to try to fix this soon as this is likely was the problem was. The good thing is again that I picked up a couple of other loose switch while troubleshooting the problem.

Thanks a lot for the help!

Yes, it really surprised me. The Start button only registers one switch, but the wrong one. I saw this yesterday but did not have the time to investigate any further. I doubt (hope) this is (not) a big thing.

If you have some pictures handy, I'd greatly appreciate them. I'd expect a whole bunch of things to be wrong if I had misconnected either of the CPU J206 & 208, but you never know.

Problem solved. I had inverted the wires from the door open and the start button switches. White/Red versus Orange/Red and Green/Brown versus Green/Red. Stupid mistake. A bit more testing and playfield should be back in soon.

Does anyone know what this single wire is for? It's the one pointing out that's right in the middle.

image_(resized).jpg

Thanks Coyote.

So I am almost done. The playfield is back into the cabinet. It was a major pain to put back in without scratching the cabinet.

I still need to do one minor fix. The step bolts on which the playfield sits are not completely tightened. The square opening on the outside of the cabinet is no longer square so it's turning freely when I try to tighten it from the inside. I'm thinking about grinding two small areas outside of the bolt so I can use a wrench to keep it from turning. That's for tomorrow.

A picture of the playfield going back into the cabinet. It's hanging from the ceiling using chains. The cabinet is on the Harbor Freight modified table (https://pinside.com/pinball/forum/topic/modified-harbor-freight-lift-table) and sits underneath. The hinges and step bolts are taken out. the playfield is progressively raised to the exact position where the rear cabinet/playfield hinges reside. I used some turnbuckles which allow to get some precise height/level adjustments. This helps avoid having the playfield rub against the newly painted cabinet. I put some adhesive felt (http://www.pinrestore.com/Supplies.html) on the playfield but even with that rubbing can hurt.

I might be missing something, but I don't see how the TZ playfield can go back this way vertically with the hinges on. The idea is showed in https://pinside.com/pinball/forum/topic/twilight-zone-playfield-removal#post-1208652. The idea is to lower the playfield closer to the head so it clears the hinge, then bring it forward and lock it within the hinge mechanism. The problem with the TZ is that there is not sufficient clearance relative to the Safe Cracker. The hinge system is different as well.

A lesson learned is that I forgot to apply the felt on the playfield back panel. It's as likely to rub against the cabinet as the sides of the playfield.

IMG_2469_(resized).JPG

The fix to the hinge not tightening...

I ended up first taking the hinge out. I used thin cardboard and tape to protect the decal all around the outside step bolt. Then used pliers to prevent the bolt from turning. Removed the bolt and cleaned it really well. There was some residual thread lock compound. Once it was all clean, put it back in and was able to tighten it well. In a perfect world, the square shaped hole locks in the step bolt, but in my case, I wasn't able to repair it properly. I'd be curious to see how the pros deal with kind of problem.

The painted bolt head got some minor touch up afterward.

Picture of the hinge bolt, circled in red. I put a black rubber mat in the very back of the cabinet to avoid having the harness wiring scratch the paint. The kind you use for kitchen cabinets. $6 at Home Depot.

IMG_2477_mod_(resized).jpg

I had the mirror blades on my STTNG and the fit was even tighter, so they ended up getting lightly scratched. I have some vinyl decals on my SM and they end up not only looking quite nice, but they are thin and quite scratch resistant.

Thanks.

Congratulations on your TZ. Lighting up the scoops is actually pretty easy. Possibly the hardest part is to access the areas where you add the leds given how busy it is under the playfield.