[Jukebox-list] Seeburg KD-200 Tormat/Selector issues....

[Tony Miller]

At 02:20 PM 4/2/2008, you wrote:
John;

I believe the 'starting switch' are the start switches behind the 
letters and numbers banks that actually energize the cancel solenoid 
in the pricing unit.  The only thing I can think of (and it sounds 
like you may have done it already) is to disable the Write-In supply 
and check for continuity to ground from the Write-In capacitor when 
you make a selection. On an analog meter, you should see a dip in 
resistance when the cancel solenoid energizes to close the write-in 
contacts.  If you don't get it, work you way towards the Tormat until you do.

Cheers,

Tony Miller
>Well, for the moment I'm stumped. Using the tests (FS 92 pages 1 - 
>4) for the KD200 I found that "H Test (Write in)" gives a suggestion 
>that the Electric Selector is defective. The test speaks to "Open 
>circuit pin C7 or defective starting switch" The problem for me is I 
>can't find any other reference to this 'starting switch'! If they 
>are referring to the switch in the SPU - that is fine, plus I have 
>traced the circuits through the RCSU-1, the Electric Selector and 
>the Tormat. All seem correct resistance and no shorts to ground that 
>I have found so far. I did try the "L Test" and this resulted in 
>selection 'V1' playing as it is supposed to - this again says the 
>"Replace Electric Selector (shorted to ground)" - but no shorts!
>
>Battery test works fine so the Read-Out circuitry is just fine - 
>thanks for asking.
>
>I've fixed a great many of these Tormat based machines over the 
>years, but this guy has me a bit troubled...I am considering testing 
>the Electric Selector with my 350VDC power supply to see if there 
>might be arc over which doesn't show up on a resistance test (no 
>resistance up to 20MR to ground) - but not sure if that will help.
>
>The Electric Selector looks great - continuity between the wipers is 
>perfect, no broken wires, no open circuits. Opened the plugs - all look good.
>
>I'm overlooking something really obvious I'm sure...but need a fresh 
>viewpoint(s) from folks that have _/*serious*/_ experience with 
>Tormat write-in logic.
>
>The diode shaping circuit is good, capacitors have been replaced and 
>triple checked. Resistors all appear to be good (correct values in 
>circuit), voltages are spot-on...
>
>Tony? Anything you remember about this series? The PCBs are all 
>good, wipers all polished and resistance checks on the relays and 
>wipers all zero out when closed...
>
>Oh, and I've read the section on my web site about Tormats: 
>http://www.flippers.com/Seeburg-tormat.html and 
>http://www.flippers.com/Seeburg-trblshoot.html - and I'm rereading 
>these in the hopes that I can find the problem.
>
>
>John :-#(#
>
>--
>John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call 
>(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
>                 www.flippers.com "Old pinballers never die, they 
> just flip out"
>
>
>--
>John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call 
>(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
>                 www.flippers.com "Old pinballers never die, they 
> just flip out"
>
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