(Topic ID: 225496)

Stern Electronics Club (1977-1984).


By Mitch

1 year ago



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  • 2,346 posts
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  • Latest reply 4 days ago by treborlicec
  • Topic is favorited by 101 Pinsiders

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Topic index (key posts)

7 key posts have been marked in this topic

Post #227 Various gate tips. Posted by cottonm4 (1 year ago)

Post #269 Hi quality thoughts from Cotton about inlanes. Posted by cottonm4 (1 year ago)

Post #279 Playfield touch up tips. Posted by klr650 (1 year ago)

Post #309 Stern inserts suggestions. Posted by cottonm4 (1 year ago)

Post #310 Seawitch gate flap solution. Posted by frunch (1 year ago)

Post #1033 Bally drop targets on the classic stern, even mix and match. Posted by cottonm4 (8 months ago)

Post #1958 Star Gazer podcast episode link. Posted by DRDAVE (75 days ago)


Topic indices are generated from key posts and maintained by Pinside Editors. For more information, or to become an editor yourself read this post!

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#720 10 months ago

Would there be any interest in Tech Charts for these Stern Electronics game?
Just like the Bally AS-2518 games.
See the example of Bally - Black Jack.
A nice list with all the fuses, lamps with their SCR named, coils with their transistor named.
I think I would need your help too.
I've heard there are a lot of errors in the schematics.

Peter
www.inkochnito.nl

Bally_Black_Jack_Tech_Chart.pdf
#723 10 months ago
Quoted from cottonm4:

It would be handy to have. I would have a request with the controlled lamps chart. In your Black Jack example, all of the controlled lamps are listed alphabetically. A cross reference chart that listed the lamps as wire pair groups grouped by the first wire color would also be nice.
For example (from Blackjack) :
1st player.....................red-blue
credit indicator..............red-yel
Player 17......................red-blue
Player 21......................red-yel
Saucer 3X.....................red-white
Spinner 1000.................red-grn
.
.
.
2nd player ....................blu-yel
Bonus 2K......................blu-wht
Shoot again...................blu-yel
Saucer 5X......................blu-wht

When all the Tech Charts are done, I will upload this info the www.pinwiki.com too.
I've already done this for the Bally 6803 games.
In this listing you can sort on wire color just like you asked.
For example Strange Science: http://www.pinwiki.com/wiki/index.php?title=Strange_Science
Just click on the wire color column...
It's hard to do this with a paper document.
The files I put on my website are intended to be printed and kept with the machine.

1 month later
#974 8 months ago
Quoted from WeatherbyMAG:

Dracula needs one feature lamp socket replaced, otherwise it's good to go. Now on to making rest of machine look as nice as the PF.

I noticed that your score and instruction cards are a bit too small.
Did you changing the settings when printing?
Be sure to set scaling to 100% or "no scaling".
Select the right paper size.
I used A4 in the file, but printers in the USA use letter format.

Peter
www.inkochnito.nl

5 months later
#1850 3 months ago
Quoted from Thrillhouse:

After chasing gremlins all afternoon on a project Galaxy I finally got it up and playing correctly. The only issue I have is in attract the score displays don't show the high score to date, it alternates between the last game played score and then shows "2 5 7" instead. Is this normal like when Big Game flashes all 7's on the displays?

Clear the memory of the high score location.

#1859 89 days ago
Quoted from Thrillhouse:

Thanks inkochnito, I'm running an altek while trouble shooting it and I'm pretty sure I already cleared it. Btw do you need any scans of the score cards or back box sheets for your site?

Thank for the offer, but I think I've got them all.
If you go to my website http://www.inkochnito.nl and do a search for "galaxy" you will see all the card images I have.
Then you can see if you have any cards I missed when I had the game here.

Peter

3 weeks later
#2013 65 days ago

Can someone with an Orbitor game help me out please?
I'm working on the two larger backbox cards.
There are parts of the text missing from the scan I received.
A photo would be great.
It doesn't have to be perfectly straight, just readable.

Attached is a the card I need to see...

Thanks,
Peter
http://www.inkochnito.nl

Stern_Orbitor_self-test_game_adjustments (resized).jpg
#2018 64 days ago
Quoted from Isochronic_Frost:

I’m pretty sure mine is perfect and I can take a picture/scan of that, in return can you get me pictures of all the papers staples to the inside of the game cabinet? Someone ripped all mine out

I'm woking on it....

#2034 62 days ago
Quoted from Isochronic_Frost:

My cards inside the backbox are different specifically say “Orbitor” on them. Here is a picture and if these are correct or some other version the factory was shipping I can scan them for you.[quoted image][quoted image][quoted image]

This Game Adjustment card is a different card.
I could use a scan too, thank you.
And the size of the card would be appriciated.
I'll add this to the file I'm working on or as a seperate file.

The other two cards I already have.
http://www.pinballrebel.com/pinball/cards/Stern/Stern_SS-series_12D-162-1_Ground_Return_card.zip
http://www.pinballrebel.com/pinball/cards/Stern/Stern_SS-series_12D-154-1_Self_Test.zip

Peter

#2037 61 days ago
Quoted from Isochronic_Frost:

According to my amassed references from Orbitor 1 pictures across the web, the large card you are looking for was stapled in the bottom right.[quoted image]

Could you be so kind to take some close-up photo's for me please?
I just need to read the text.

3 weeks later
#2176 40 days ago
Quoted from Chalkey:

The top row of segments is out in one of my displays. I followed Kukpa's guide. All connections reflowed, the associated transistor and the chip both replaced as well as the 100k resistors. There is continuity from the last pin that appears to connect to the top segments to all the other components in the chain. The display is certified as the issue through swap out to other slots and cross verification. Anything else to look at before I give up?

Look very closely at the connections between the glass layers of the display.
Sometimes you can see the connection is black (tarnished) or the metal connection is just plain gone.
End of life for the display....

2 weeks later
#2292 21 days ago
Quoted from HHaase:

Ok, what am I missing here? I keep blowing Q4, for my outhole coil.
I can trip it by grounding the tab on Q4, and it fires nice and strong, so I know the wiring is good as is the coil voltage.
All other coils are working fine.
Last time I replaced Q4, the coil fired 2-3 times during test, and looks like the transistor went dead again now.
Won't fire either in the game or via test mode.
Nothing is shorting out around the outhole, I replaced the old aluminum sleeve with a nylon one just in case.
New diode on the coil, wiring isn't backwards.
Never had this kind of repeated transistor failure before. But I'm also new to the Bally/Stern SDB. So not sure if I'm missing something.
-Hans

Is Q4 blowing to pieces or just stop functioning?
Did you reflow the print headers at the driver board?
Sometimes you cannot see the hair fractures...
In this case it should be visible.

Measure the Q4 with a multimeter at diode setting and compare with the other transistors.
If this is oke, replace the CA3081 at U1.

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