The NEW Build Your Own Arcade Controls
Arcade Collecting => Restorations & repair => Topic started by: telengard on June 12, 2011, 04:24:43 pm
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I'm trying to get an arkanoid spinner working (using it with an Opti-PAC so wasn't sure if the general forum or this one was more appropriate).
As received from eBay it did not work. Found this site:
http://www.zumbrovalley.net/readpost.php?artid=1 (http://www.zumbrovalley.net/readpost.php?artid=1)
and following the advise there I ordered some replacement optical encoders which were mentioned were most likely drop in replacements:
http://www.optekinc.com/datasheets/OPB859.pdf (http://www.optekinc.com/datasheets/OPB859.pdf)
I've pinned out everything to make sure I have it right and I'm pretty sure that part is OK. What I'm seeing is the output at the receivers (pins 1 and 4) is always @ 5V. When moving the wheel I never see it dip to 0v.
Any tips on things to check or ideas? As I mentioned I've pinned everything out following the schematics at the above page and also verified (out of circuit) that the 2 resistors are 150ohm (in circuit the resistance goes way up which surprised me, I would have thought they'd stay fixed and current/voltage drop would change). I also only have the 2 150 ohm resistors on my board and from what I've read, the other 2 aren't needed.
~telengard