Tired of the artificial knocker in your Stern pinball machine?
Well, I was too!
So with a little help from Terry at Pinball Life, we put together a kit
that solves the problem!
I am proud to announce that this kit is now available exclusively at
Pinball Life.
http://www.pinballlife.com/index.php?p=product&id=735&parent=0
The kit contains everything you need to install a complete REAL
(mechanical) knocker on any Stern game from Striker Xtreme to Sopranos.
Get rid of that obnoxious electronic squawk knocker sound and replace
it with the sound of a real knocker!
No soldering or special tools required.
Kit Includes:
SPI knocker adapter interface and wires
Knocker mechanism #500-5081-00
Knocker strike plate
Mounting hardware
Complete installation instructions
http://www.pinballlife.com/index.php?p=product&id=735&parent=0
Please let me know if you have any questions at all about this product.
Thank you!
Andrew
Roy
<ssunite...@gmail.com> wrote in message
news:1154832460.7...@75g2000cwc.googlegroups.com...
Good question!
There is an adaptor box in the kit that connects to where your coin
meter would connect in the games body. There are settings in the
software of the game so you can let it know a real knocker is
installed. You also disable the fake knocker (and give your speakers a
break!) in the software.
It also connects to the knocker mechanism and to a power source in the
game.
The coin meter output is too low and not powerful enough to effectively
drive a solenoid, or to drive it in a way that does not risk damaging
your machine WITHOUT some sort of adaptor.
The adaptor box eliminates this problem by taking the load of the coil
off the driver board's "low level" output.
Let me know if you have any other questions.
Andrew
i don't have a stern - just asking cause I know it will need ansered.
I know i have at least 2 complete knocker assy's out in the shop and i'm
sure others do, too.
good job!
Dan
<ssunite...@gmail.com> wrote in message
news:1154832460.7...@75g2000cwc.googlegroups.com...
_marc
>There is an adaptor box in the kit that connects to where your coin
>meter would connect in the games body. There are settings in the
>software of the game so you can let it know a real knocker is
>installed. You also disable the fake knocker (and give your speakers a
>break!) in the software.
Not trying to short-change you or anything, but I'm 99% sure that that
option you speak of didn't exist until Simpsons. I know it's not in
HRC, for example. Anything after Simpsons should also have the option
(adjustment Q24 OPTION iirc).
keith
--
At one time I had random Your Mother jokes down here.
Maybe someday they'll return...
The output J7 pin 10 is foreseen to drive a coin meter and this connector
arrives just above the tilt plomb. You will find it floating there with
nothing connected .It is a three prong white connector , only two wires are
inserted a red and a purple/grey one , The purple grey one comes from J7 pin
10 as the driver transistor behind this wire is a TIP122 wich can drive 8amp
this may be at the low side, so you will need to add a TIP36C as exta driver
and connect there the knocker coil ;
How to connect a TIP36C at the excisting Tip122 ?
Take a look at a WPC shematic where the knocker is also connected that way
and copie that! As input you take of course the signal coming from the white
connector ( purle /gray wire ).
Also change the settings in Standart adjustements( 46) to knocker , Replay
award ( adjustement 03) to credit and Special award 06 to credit. that
should do the trick , i did not try this out here on my LOTR but perhaps i
will give it a try and publish the entire mod , if there is enought respons
Leon from http://www.flipper-pinball-fan.be
"marc_b" <m...@easystreet.com> schreef in bericht
news:1154841837.2...@p79g2000cwp.googlegroups.com...
Anyone do this for Pinball 2000???!!
I'd buy obe of THOSE for sure!
Chris
<ssunite...@gmail.com> wrote in message
news:1154832460.7...@75g2000cwc.googlegroups.com...
And I'll fourth that then, please sell the adapter kit as a standalone
for us who already have knocker assemblies around (and who don't like to
pay unnecessary shipping and another 25% tax on items and shipping costs
to bring one to the EU).
Is this possible? It would be great! :)
/Kristoffer
--
This cookie has a scrap of paper inside. It reads:
Arire gehfg n enaqbz trarengbe va zntvp svryqf.
> Hello all!
>
> Tired of the artificial knocker in your Stern pinball machine?
>
> Well, I was too!
>
> So with a little help from Terry at Pinball Life, we put together a kit
> that solves the problem!
Yay! NO MORE FARTKNOCKER!!
All together now, EVERYBODY SING!
ninety-nine specials in RIPleys to get,
ninety-nine specials to get!
take one down,
FATKNOCKER sound,
ninety-eight specials in RIPleys to get....
--
Have a home video that's trapped on your camera? Want to share it on the
web or on DVD?
The Tip122 can't drive a knocker on its own? That's what bally, stern,
and williams used to use on system 7, mpu35, etc. - Granted on the
williams machines this transistor often burns.
Well a couple things.
First on Stern games they aren't using a TIP122.
The are using logic level driven FETs. So can a
FET drive a knocker? Well sure it can, but there are
some things to think about.
first is the knocker 30 volts or 50 volts? I don't
know if stern is still using a 30 volt buss anymore.
They did this back in the 'old days' when the DE
CPU board was a direct copy of Williams' system11.
System11 started out with 30 and 50 volt coils.
Flippers were 50 volts, most everything else was 30
volts. Then they started using 50 volts for more and
more coils (like up kickers and the such). Hence
the Auxiliary Power board which had TIP36 transistors
to drive the higher voltage coils.
Eventually with WPC williams of course abandoned
all 30 volt devices and just used 50 volts for coils.
I would be thinking that Stern did the same thing.
but i would have to see the schematics.
But anyway, can a FET drive a knocker? Well since
this replaced a coin counter, and most coin counters
are 12 volt devices, maybe not. Again i would have to
see the schematics and see what kind of FET is
driving the coin counter (and now the knocker).
I should also state that with early system11 games
(before the Aux power driver board), williams used
under-playfield-mounted relay board to drive 50 volt
coils. So the TIP122 would drive the relay at 30 volts.
Then the relay would energize closing a switch
connected to 50 volts (and a coil), which would
fire the 50 volt coil. This approach was abandoned
with the Aux Power driver board, since how Wms
could use a TIP36 to drive a 50 volt device (no need
for the under playfield relay board).
> Eventually with WPC williams of course abandoned
> all 30 volt devices and just used 50 volts for coils.
> I would be thinking that Stern did the same thing.
> but i would have to see the schematics...
>
> But anyway, can a FET drive a knocker? Well since
> this replaced a coin counter, and most coin counters
> are 12 volt devices, maybe not. Again i would have to
> see the schematics and see what kind of FET is
> driving the coin counter (and now the knocker)..
So my guess is the Knocker assembly is a similar
device. Since they are only driving a 12 volt coin counter,
the little box is probably a 12 volt relay. When the
knocker needs to fire, the relay is energized, which
in turn fires the (50 volt) knocker.
That's how i would do it anyway. This way no one
can yell at you for burning the coin counter FET
when it tries to drive a 50 volt knocker.
Andrew
Don't forget, you would also need the strike plate!
I will get back to you on the adaptor by itself.
Andrew
This kit is designed for someone who does not have the time, or
knowledge to sort out how it all works. It is a completely plug and
play kit...
Andrew
The kit fires the solenoid at over 50V
AB
I was just going on what Leon said - since it appears it's not a
tip122, doesn't look like it matters. Also as Clay posted I think all
the coils on the new sterns are the higher voltage - I don't have one
but I do know that I don't like the software "knock".
-scott CARGPB#29
I knew the harness was the same in all these Whitestar games, but the
software not supporting it causes some obvious problems.
So an updated list of machines that would have software support for
this is:
2003-02 The Si mpsons Pinball Party Stern
2003-06 Termi nator 3: Rise of the Machines Stern
2003-12 The Lo rd of the Rings Stern
2004-03 Ripley's Be lieve It or Not!® Stern
2004-08 El vis® Stern
2005 Grand Pri x Stern
2005-08 NASCAR®
2005-02 The So pranos®
I could only could find manuals for Mo nopoly, which shows you can turn
the knocker volume off, but not tell it there is a knocker attached to
the game...
That means, the following games I can NOT confirm it works with:
1999 Harley-Davi dson® Stern
2000-01 St riker Xtreme Stern
2000-09 Shark ey's Shootout Stern
2001-01 High Rol ler Casino Stern
2001-06 Aust in Powers™ Stern
2001-09 Mon opoly™ Stern
2001-11 N FL Stern
2002-01 Pla yboy® Stern
2002-08 RollerC oaster Tycoon Stern
2002-11 Harley-Davi dson® (2nd Edition)
If you have one of these games and don't mind having a look in the
Standard Adjustments menu, #46 to see if you have the Q24 Option
listed, I would appreciate it!
Thanks for the info Keith!!
Andrew
The software does not appear to support this feature. Stern did a cool
thing making that an option...
Andrew
They sound good!
Have them installed in TSP P and LOT R, makes a great knock sound when
fired.
A MAJOR improvement over the square wave to my speakers sound. Easier
on the speakers, my ears, and the comfort level of the guests (Is it
supposed to make that sound? Yes...) that come and play the game.
Andrew
http://www.videoengine.com/pins/tspp/TSPP_Knocker.pdf
(I think the labels of the pins on J7 are transposed on this schematic
IIRC)
I ended up just running wires from J7-1 and J7-10 to the knocker,
skipped the relay and the 50V source. It works, albeit pretty tame. I
decided I'd better settle for a quieter knocker since the 50V solution
wasn't working for me and I really didn't know WTF I was doing.
The net result is the same as this, I think:
-Jim
> I don't think a real knocker is probably between the normal and low
> (aka 50%) fake knocker settings in volume. They just sound totally
> different. I'd say a real knocker is more abrupt and without any high
> tones, a "clack". The fake one is more of a "whooop". Even on low
> the fake Stern knocker makes me think the speakers are going to fall
> apart because it is such a harsh tone with that squeal in there - and
> yes, tends to startle even people that know its coming.
The fartknocker sounds like someone shot a corpse with a watermelon.
To me it sounds liek somebody slamming two big pieces of slate together
REAL hard...
Excellent job Andrew and a really cool mod. LTG :)
<ssunite...@gmail.com> wrote in message
news:1154832460.7...@75g2000cwc.googlegroups.com...
> Hello all!
>
> Tired of the artificial knocker in your Stern pinball machine?
>
> Well, I was too!
>
> So with a little help from Terry at Pinball Life, we put together a kit
> that solves the problem!
>
Andrew
-Tom