| Main > Main Forum |
| Arkanoid spinner help |
| (1/1) |
| telengard:
I'm trying to get an arkanoid spinner working, using it with an Opti-PAC. Originally posted this in restorations but it is probably more appropriate in here. :angel: As received from eBay it did not work. Found this site: 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 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 |
| D_Harris:
From what I know the original Arkanoid spinner should have worked without having to use new encoders. Did you re-flow all the solder joints first? (I think cold solder joints are a common problem). Darren Harris Staten Island, New York. |
| telengard:
--- Quote from: D_Harris on June 19, 2011, 04:17:46 pm ---From what I know the original Arkanoid spinner should have worked without having to use new encoders. Did you re-flow all the solder joints first? (I think cold solder joints are a common problem). Darren Harris Staten Island, New York. --- End quote --- Hi there, Thanks for the suggestion! I only replaced the encoders because the spinner wasn't working. Figured the encoders were not working. Seems that is not the case. :banghead: I'll try re-flowing the solder joints tonight. ~telengard |
| D_Harris:
--- Quote from: telengard on June 19, 2011, 04:21:08 pm --- --- Quote from: D_Harris on June 19, 2011, 04:17:46 pm ---From what I know the original Arkanoid spinner should have worked without having to use new encoders. Did you re-flow all the solder joints first? (I think cold solder joints are a common problem). Darren Harris Staten Island, New York. --- End quote --- Hi there, Thanks for the suggestion! I only replaced the encoders because the spinner wasn't working. Figured the encoders were not working. Seems that is not the case. :banghead: I'll try re-flowing the solder joints tonight. ~telengard --- End quote --- Well, did that correct your problem? Darren Harris Staten Island, New York. |
| DaOld Man:
--- Quote from: telengard on June 14, 2011, 10:38:16 pm --- 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. ~telengard --- End quote --- According to the pdf you linked to, You should see a steady 5 volts between pins 1 and 4 of the sensor. (Between pins 1 and 2 you should see around 2 volts.) Connect your meter to pins 1 and 3, then turn the spinner very slow. If you are using a digital volt meter and turn the spinner fast, the DVM may not see the fast pulse and register a steady on, due to DVM update times. At least this is how it looks to me. |
| Navigation |
| Message Index |