SOLVED: TZ Clock Millions MOD Just Not Working

[Andy B]

UPDATE: Nothing to see here - was flash lamp fuse that (F111) that had blown - can't believe I hadn't noticed the flashers weren't working - idiot - fuse replaced, MOD is working (well the LEDs are flashing in Clock Millions mode - not sure if motor is turning the minute hands since as I broke the minute hand off with my big fat fingers when I was installing the damned thing!).

Anyone bought the Clock Millions MOD for Twilight Zone? This one:

TWILIGHT ZONE Pinball *Ultimate* !!Motorised Finger!! CLOCK Millions Mod TZ | eBay

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I installed one (breaking the plastic minute hand in the process :-() but it's just not working.

Description says it should light up and minute handle (if not broken!) should turn in clock millions mode. It's dead as a dodo.

I installed as per badly printed instructions - tapping off molex connector at back right under playfield. I am confused as to why it should be connected there however as I would have thought it should be connected in some way to clock millions lamp since as it's supposed to come on in clock millions mode and as far as I can see it taps off a green/white wire which according to manual is upper right flasher (though the green/white wire going in to that connector connects to the blue/yellow wire coming out of the connector which is inner ramp flasher according to manual!).

I have been in touch with the Ebay seller I bought it from and they confirmed that I had connected it up correctly and recommended I tested for voltages at the connector but as the flashers all appear to be working I don't think that is the issue.

I have tested continuity from the wires to the motor to the tap off connector - in case the wires got broken or disconnected when I was installing it and I have continuity but the two wires coming out from the clock motor appear to be joined together to one wire which seems a little strange - I would have thought the + and - would have been wired separately in the connector. I also get no voltage to the motor in the MOD even when in clock millions mode.

Just wondering if anyone has this MOD and has had any issues with it or can give me any pointers as to diagnostics.



Thanks

Andy

 

[M4carp]

I have that mod and also broke the hand off when doing some cleaning, took it off. Could probably glue the hand back but prefer without it fitted now.

I fitted the proto door flasher board mod and was having hassle with it not working, checking with maker etc. We couldn’t work out what was wrong until I realised most of my flashers were not working! Dodgy connection, looks much better with all the flashers working

 

[Andy B]

It just got better - when I put a new fuse in for flashers I thought I'd just check they were all working.

Was doing some funky stuff with flasher 18 (min playfield x 2) making one of the two flasher 19s (Power Playoff) work but not flashers 18. Flasher 19 was working correctly when it was supposed to.

Reading repair guide it suggested disconnecting and reconnecting ribbon cable between CPU board and driver board if lamp matrix was getting "confused".

You guessed it, removed and re-seated ribbon cable and everything works as it should now!