(Topic ID: 111073)

Stern Star Trek Drop Target Help

By Trekkie1978

7 years ago



Topic Stats

  • 10 posts
  • 7 Pinsiders participating
  • Latest reply 4 months ago by StoneyCreek
  • Topic is favorited by 4 Pinsiders

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#1 7 years ago

When I hit the drop target, it is registering more than 1 hit.

I hit it, it drops down, pops back up, then drops back down, then right back up.

I looked underneath and everything looked fine.

This is happening like half the time.

#2 7 years ago

There's 2 screws that hold the drop target mech in place. When you have the pf sitting on the upright position, it's the left screw that needs a 1/16 or 1/32" washer added. It's a tech fix bulletin on drop targets at sterns website. I'll see if I can find the ST link here on pinside for it.

#3 7 years ago

Here it is:

https://pinside.com/pinball/forum/topic/star-trek-le-drop-target-wont-stay-up#post-2073538

Mines been fixed like this for a couple months now.

#4 7 years ago

Thank you for the help. This just started happening 2 days ago.

#5 7 years ago
Quoted from Trekkie1978:

Thank you for the help. This just started happening 2 days ago.

Welcome to the club. Luckily, it is a very easy fix.

#6 7 years ago

Thanks for the help.

I fixed it earlier and it seems to be working 100%.

#7 7 years ago

Oddly enough, I just battled this same issue this weekend. Added washers which kept the drop where it belonged, but then the auto-down release plunger wouldn't work if a ball was locked behind the drop. Put in thinner washers, still no go. Turns out without washers, it wouldn't grab the ledge, but with even thin ones in there, the force of the ball was enough to keep the auto-down from working. I ended up having to bend the entire drop target bracket down (down if the playfield is upright) a bit. This changed the angle just enough that the ball's weight wasn't working directly against the release plunger. Really weird how touchy it was. It's also pretty disappointing that Stern has known this is an issue for how many years (judging from that service bulletin above) and have chosen not to do anything about it. :/

So anyway..if anyone has the same troubles I did...try bending the bracket. I was able to bend it pretty easily by hand when mounted in place.

7 years later
#8 4 months ago

I had the same issue today and it took me a while to fix.
In the end to get the drop target working 100% properly in all scenarios (up/down in coil test, down when hit by ball, auto-down when a ball is behind it pushing it forward) I had to do all the stuff others mention PLUS *extend the firing pin with a piece of plastic (?!)* to fix the issue with the target not going down when a ball is behind it:

- Order a new ledge from Marco: https://www.marcospecialties.com/pinball-parts/545-6163-01 (much better than the very thin original one!)
- Order some nylon M5 washers

- Turn the power off, unplug the machine, remove lock bar, glass, balls then raise playfield
- Use a nutdriver (black screwdriver with screwdriver end removed,yes I am a noob) to remove the 4 bolts attaching the drop target mechanism to the playfield being careful not to drop it
- Unscrew the 2 screws holding the old plastic ledge
- Replace the old plastic ledge with the new one, making sure it's the right way around (it has a nice slope on it - thin end goes at drop target end)
- Put M5 washers under the plastic ledge
- Reverse the left screw so it screws in from the top (the black plastic slide was catching on it as Aurich noted)
- Put the right screw in as it was before
- Extend the firing pin that hits the target to knock it back down by adding a piece of plastic (I clipped a piece of plastic from a 3-prong plastic plug cover I had in a drawer and used it to cap the pin)
- Put the mechanism back in and reattach the 4 bolts
- Plug the machine back in and turn it on
- Open the coin door and use the menu to test the CENTER DROP TARGET UP and CENTER DROP TARGET DOWN coils - success
- Roll a ball behind the drop target and keep it there with some cloth
- Test CENTER TARGET UP and then CENTER TARGET DOWN with a ball behind it - success!
- Take the cloth out, put the balls back in, put the glass and lockbar back

Now it plays better than ever and it only took me about 8 hours to fix lol

#9 4 months ago

Impressively done, and very helpful for posterity!

#10 4 months ago
Quoted from sebgrinke:

I had the same issue today and it took me a while to fix.
In the end to get the drop target working 100% properly in all scenarios (up/down in coil test, down when hit by ball, auto-down when a ball is behind it pushing it forward) I had to do all the stuff others mention PLUS *extend the firing pin with a piece of plastic (?!)* to fix the issue with the target not going down when a ball is behind it:
- Order a new ledge from Marco: https://www.marcospecialties.com/pinball-parts/545-6163-01 (much better than the very thin original one!)
- Order some nylon M5 washers
- Turn the power off, unplug the machine, remove lock bar, glass, balls then raise playfield
- Use a nutdriver (black screwdriver with screwdriver end removed,yes I am a noob) to remove the 4 bolts attaching the drop target mechanism to the playfield being careful not to drop it
- Unscrew the 2 screws holding the old plastic ledge
- Replace the old plastic ledge with the new one, making sure it's the right way around (it has a nice slope on it - thin end goes at drop target end)
- Put M5 washers under the plastic ledge
- Reverse the left screw so it screws in from the top (the black plastic slide was catching on it as Aurich noted)
- Put the right screw in as it was before
- Extend the firing pin that hits the target to knock it back down by adding a piece of plastic (I clipped a piece of plastic from a 3-prong plastic plug cover I had in a drawer and used it to cap the pin)
- Put the mechanism back in and reattach the 4 bolts
- Plug the machine back in and turn it on
- Open the coin door and use the menu to test the CENTER DROP TARGET UP and CENTER DROP TARGET DOWN coils - success
- Roll a ball behind the drop target and keep it there with some cloth
- Test CENTER TARGET UP and then CENTER TARGET DOWN with a ball behind it - success!
- Take the cloth out, put the balls back in, put the glass and lockbar back
Now it plays better than ever and it only took me about 8 hours to fix lol

Would this well-documented process work on a Pro also? I don't know if the target mechs are the same as an LE

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