Re: How does the Midway analog joystick work on a Kozmik Krooz'r? (schematic incl)

Y-Output
You should have a Freq. on PIN 10 of IC 4A
(If not then something is wrong with 4B and it's components.)

Then on 4A PIN 9 (TSP1) you should have the (FREQ of PIN 10) divided by 2
On PIN 4 it is divided by 128

IC 3A outputs should be counting the FREQ.

X-Output works the same as Y-Output

Tim

-----Original Message-----
>From: Teaganm

>I'm trying to figure out the joystick on a Kozmik Krooz'r. It's an analog
>type that slides a core through a choke. I have 5V & GND at pins 1 & 3.
>I'd expect to see an analog siginal at 3B pin 4 & 4A pin 4 and a digital
>count at outputs Y0-Y7 & X0-X7 but I can't seem to get any result. Any
>ideas?
>
>Schematic here:
>http://teaganm.cademo.com/images/other/kroozr%20joystick%20pcb.jpg
>or here:
>http://tinyurl.com/6asqwc
>
>Thanks.
>Steve
>
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Received on Wed Jul 16 18:32:15 2008