Re: IIGS Joystick issues

[Drew <GoggleDrew@gmail.com>]

On 19 Aug, 20:25, "Ferdinan Meyer-hermann" <ferdinan.meyer-
herm...@a2central.com.remove-5h3-this> wrote:
>   To: Drew
>
> Drew wrote:
> > Hi,
>
> > I am hoping this is a simple one :-). I have a ROM03 IIGS with a
> > ZIPGSX (12.5Mhz 64K) and have recently got it out of storage. I was
> > trying to play some old games last night but the joystick wouldnt move
> > down at all (up left and right worked fine). I tried the joystick on
> > another GS with another ZIPGSX card and all worked fine.
>
> > I have made sure the CDA for the ZIP says that joystick delay is
> > enabled.
>
> > Any ideas?
>
> Two, actually.
> The first: Your joystick is out of calibration.
> start the GS and type in the following simple applesoft program:
> ]NEW
> ]10 PRINT PDL(0),PDL(1)
> ]20 GOTO 10
> ]RUN
>
> You will have two columns of lines on-screen.
> the first is the X-Axis (left/right), while the second is the Y-Axis
> (up/down). The values should be 0 in the upper/left position, 127 in the
> middle and 255 in the lower/right position.
> If the middle values are incorrect, you can adjust them using two controls
> that are usually on the bottom of the joystick. The calibration needs to be
> done for every computer the joystick is used on. It will, usually also work
> on others, but you don't know for sure. If the middle value is 127 and 255
> is still not reached in the lowest position, then you need idea two:
> The joystick port uses some capacitors that can go out of tolerance. You
> will then not be able to get the full range out of the joystick. The best
> solution would be to replace the caps, but I don't know where they exactly
> are. At least you can also connect a correction cap in the Joystick
> connector or even to the joystick (this is what I did when I had the same
> problem). If you have calibrated the joystick and tell me the readings you
> get in the extreme paddle positions, I can tell you which cap you would
> need, and where to connect it.
>
> Regards,
>
> Ferdinand

Thanks for all the info :-), will give that a try tonight.

Drew