Re: Kurz Kasch test cards

Matthew Rossiter wrote:
> John,
>
> I sent an email back in 2005 explaining the design flaw for the 309
> cards if you want to include an explanation on your page. Here's a
> snippet.
>
> =============
> I never liked the audio board tester because all you get is an
> uncontrollable amount of noise, which doesn't help you any.
>
> So Step 1:
>
> Install a 10k volume pot like so...
> http://rossiters.com/cinematronics/Kurz-Kasch-309A-2.jpg
>
> Now you are no longer disturbing the neighbors 10 blocks down the street.
>
> Step 2:
>
> When you're testing sound boards, you want to ground certain test
> points one at a time to see if the noise gets generated. The design
> flaw with the Kurz Kasch tester is it grounds all test points at once,
> and by pushing buttons on the TF-650 it turns the sounds *off* one at
> a time, which is really annoying. So to fix that, I made 4 cuts and
> jumpers on the 309A card so that all the test points would be high,
> not low. http://rossiters.com/cinematronics/Kurz-Kasch-309A.jpg.
> This at least gets the board to be quiet. The one thing I'm not sure
> about yet, is how you test *all* the sounds. For example, Star Castle
> has 8 sounds, but the TF-650 has only 4 buttons. So, I'm not sure if
> pushing a combination of buttons generates certain other sounds, or if
> I just need to ground certain test points on IC-3 with a clip lead. I
> haven't really gotten that far yet. :-o
>
> ============
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Hi Matt,

Thanks, have added that to the web page!

John :-#)#

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