(Topic ID: 206005)

Stern Stampede - Bonus Stepper issues

By Budski

6 years ago



Topic Stats

  • 9 posts
  • 4 Pinsiders participating
  • Latest reply 6 years ago by Budski
  • No one calls this topic a favorite

You

Linked Games

Topic Gallery

View topic image gallery

Pinball (resized).png

You're currently viewing posts by Pinsider Budski.
Click here to go back to viewing the entire thread.

#1 6 years ago

Working through issues with my Stern Stampede and am having issues with the Bonus Stepper coil as it steps up and staying energized when you start the game or sometimes in the middle of the game. I have cleaned the stepper unit but it is an intermittent issue. I am guessing it is a switch that is holding the coil energized but I am not sure where to start? I do have the schematic but I have very low knowledge of how to read one but I am learning. Thank you in advanced for the help.

#4 6 years ago

Thanks guys, I went through the targets last night before I wrote this post they looked okay but I will check again and maybe I missed one or two. I will also check the switches on the stepper...I'll report back on the results.

#6 6 years ago

Okay I looked at all of the playfield switches and the connections to see that none were touching causing to energize the bonus up stepper and they are all adjusted properly and not hanging up. I tried to look into more symptoms. It locks in the "end of game" relay and that is when the coil locks in on the bonus stepper. If I put a coin in the coin mech. It advances the motor, zeros the scoring reels and then locks that "end of game" relay. I believe that relay is locking in until the end of the game? When I manually unlock it the coil is no longer energized. I also checked the stepper switches and they are gapped and cleaned properly. Thank you in advance on where I should direct my attention. I am starting to understand schematics a little better but by no means am I out of the beginners box yet.

#8 6 years ago

I inspected the 10s Unit and it looks good and I cleaned and re-gaped the switch. It works good and is not hanging up. The printed board looks like it has seen better days, but it is clean and appears to be working good.

I checked all of the roll overs, outlanes, kick outs and targets that advance the unit. None are closed. I have one kick out that looked tight so I opened it up like it should be but it did not fix the issue.

The knocker is not working but I will assume for now that is a separate issue. It also has coin mechs. that I don't know if that has anything to do with since not of my other pins have had these mech. in them.

This pin did not work when I purchased it and I got it this far but this issue has me stumped. Thanks everyone for the help.

#9 6 years ago
Quoted from flynnibus:

If you are labeling the coil correctly (which we are then following on the schematic)... it's pretty simple what can be causing that bonus step up coil to fire. It's either the end of stroke switch on the 0-90 unit (the ten's unit).. or some playfield switch which we can't read on the IPD scan. Start with the Ten's unit.. and make sure the EOS there is opening and not getting hung up. Then look at those Playfield switches that should advance bonus.

Well I finally found it flynnibus. Thank you all for your guidance. I had checked the 10s Unit contacts, looked to make sure the tabs were not touching on the blades by the solder joints. Didn't see anything wrong until I started manually pushing the rollovers and watching the 10s Unit. I saw a arc between the blades by the solder joints. I found an old pc of loose solder laying on the lower blade and it was arcing between the 2 blades. Not sure where it came from as the only soldering I have done on the machine was much lower. May have been there along time and all my moving of the machine bounced into the just the right spot.

Promoted items from the Pinside Marketplace
From: $ 30.00
Cabinet Parts
Rocket City Pinball
Cabinet parts
From: $ 19.95
Apparel - Unisex
Pinball Wheezer
Unisex
$ 259.99
Cabinet - Toppers
Lighted Pinball Mods
Toppers

You're currently viewing posts by Pinsider Budski.
Click here to go back to viewing the entire thread.

Reply

Wanna join the discussion? Please sign in to reply to this topic.

Hey there! Welcome to Pinside!

Donate to Pinside

Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!


This page was printed from https://pinside.com/pinball/forum/topic/stern-stampede-bonus-stepper-issues?tu=Budski and we tried optimising it for printing. Some page elements may have been deliberately hidden.

Scan the QR code on the left to jump to the URL this document was printed from.