Tron scoop problem

[David_Vi]

Andy made a good spot with the coil sleeve. It's probably worth you getting a new sleeve.


When it doesn't work, does it seem totally dead or like it's trying? If it's trying it might be the incorrect sleeve and the friction it's causing.

(edit: @drhex has checked since I posted this so maybe disregard, but it's always good to replace sleeves as they cost pennys, it also means you can reassembe the mech and check it's good)

If it's something under playfield it's easily fixed, it's all mechanical or wiring, and I think you can handle it with help. If it's on the boards then that's when I'd suggest an expert.

But you need to establish if it is the board first by changing the coil sleeve and testing the voltage at the coil.
It's not as daunting as it sounds!

 

[StandUpAndFight]

OK, then you may have an issue with the driver transistor - so coil won't return after failure until you leave the machine sitting over night?

Yes, hard to keep track now, but I would say at least several hours

 

[StandUpAndFight]

Andy made a good spot with the coil sleeve. It's probably worth you getting a new sleeve.


When it doesn't work, does it seem totally dead or like it's trying? If it's trying it might be the incorrect sleeve and the friction it's causing.

(edit: @drhex has checked since I posted this so maybe disregard, but it's always good to replace sleeves as they cost pennys, it also means you can reassembe the mech and check it's good)

If it's something under playfield it's easily fixed, it's all mechanical or wiring, and I think you can handle it with help. If it's on the boards then that's when I'd suggest an expert.

But you need to establish if it is the board first by changing the coil sleeve and testing the voltage at the coil.
It's not as daunting as it sounds!

When it doesn't work it seems completely dead.

 

[pinballmania]

Looking at the rest of the photos sleeve maybe ok.

 

[StandUpAndFight]

Ok, perhaps getting somewhere. Lifted the pf and spotted that the bolt was raised (see photo). Tapped it back down and now the coil test fires.

Where would I find the earth braid for the voltage test, please?

 

[drhex]

Sorry, but where is the end stop? There should be an angle up with a rubber bush keeping the plunger from sliding out. Earth braid should be at every metal bit of the cabinet.

 

[David_Vi]

Ok, perhaps getting somewhere. Lifted the pf and spotted that the bolt was raised (see photo). Tapped it back down and now the coil test fires.

Where would I find the earth braid for the voltage test, please?

It'll be running along the inside of the cabinet walls. Looks like this


I find a bit closest where I can squeeze one of the probes so it's held in place.

 

[David_Vi]

Sorry, but where is the end stop? There should be an angle up with a rubber bush keeping the plunger from sliding out.

Oh my god.
I thought at first it was one of those mechs without one but it's obviously missing, you can see the sheared metal.

Looks like the plate needs replacing in that case

 

[drhex]

You should have a bit of metal with a rubber bush in the bottom of your cabinet. If the plunger is too far out of the coil it won't pull it in/will be weak which would fir your symptoms. Hope you can weld .

 

[David_Vi]

See item 1 in the schematic?


Part no 535-7585-00

If you can't find it and can't get it welded you can find it at a few shops, sadly none in UK but I've used pinwitch before, good shop, if you're going to order it's worth getting a new sleeve too

Kick Big Mounting Bracket - Stern

Kick Big Mounting Bracket - Stern Stern Part No. 535-8575-00

shop.thepinwitch.com

 

[StandUpAndFight]

And there it is. My boss likes to do a bit of welding, I'll see what he says. I bought some speaker covers off Karin at pinwitch a little while ago, so hopefully should be good one way or another. Also now have a good excuse for playing lousy at the Pinball Office comp on Sunday.

Many thanks to everyone who has chipped in on this, it is very much appreciated!

 

[carl lawrence]

Sorry, but where is the end stop? There should be an angle up with a rubber bush keeping the plunger from sliding out. Earth braid should be at every metal bit of the cabinet.

Well spotted mate ! So obvious now you have pointed it out cannot believe I completely missed it .. doh !

 

[StandUpAndFight]

Checking against the sales photos of the machine, you can see that it was already looking a bit the worse for wear!