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wilba_mb_6582_control_surface_parts_list [2009/12/28 05:31]
no-fi filling in a big gap in information between forums and wiki
wilba_mb_6582_control_surface_parts_list [2009/12/29 01:44]
no-fi
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   * 3mm LEDs, preferably bright ones. 64x LEDs for modulation matrix, 48x other CS LEDs on control surface, 1x LED for power on (mounts above power switch). Since all LEDs are in a 16x8 LED matrix, it is not advised to use different colours of LEDs that are powered by the same DOUT pin (through the same resistor) as the brightness will be different. See {{mb-6582:​mb-6582_cs_dout_wiring.pdf}} for LED wiring on the control surface. For example, if "SID 1" LED was red and "LFO 4" LED was green, most likely "SID 1" LED would be much brighter, since red LEDs are typically much brighter than green, on top of having a smaller voltage drop (so even a red and green with identical mcd value would have different brightness because they would receive different current due to different voltage drops across the current limiting resistor on the DOUT). However, you can use different LEDs in the mod matrix to the rest, as these use their own DOUT which is not shared with the other LEDs, so you are able to use different resistors in that DOUT to compensate for the different voltage drop. i.e. you can use red in the mod matrix, green elsewhere, and use higher resistor values before JD6 than the ones before JD7   * 3mm LEDs, preferably bright ones. 64x LEDs for modulation matrix, 48x other CS LEDs on control surface, 1x LED for power on (mounts above power switch). Since all LEDs are in a 16x8 LED matrix, it is not advised to use different colours of LEDs that are powered by the same DOUT pin (through the same resistor) as the brightness will be different. See {{mb-6582:​mb-6582_cs_dout_wiring.pdf}} for LED wiring on the control surface. For example, if "SID 1" LED was red and "LFO 4" LED was green, most likely "SID 1" LED would be much brighter, since red LEDs are typically much brighter than green, on top of having a smaller voltage drop (so even a red and green with identical mcd value would have different brightness because they would receive different current due to different voltage drops across the current limiting resistor on the DOUT). However, you can use different LEDs in the mod matrix to the rest, as these use their own DOUT which is not shared with the other LEDs, so you are able to use different resistors in that DOUT to compensate for the different voltage drop. i.e. you can use red in the mod matrix, green elsewhere, and use higher resistor values before JD6 than the ones before JD7
  
-  * **NOTE on LEDs**: apparently some time after the original writing of this WIKI page, it has been discovered that blue, purple, and white LEDs (well anything with wavelengths ​in the low freq end of the spectrum) are hard to use, and possibly also bad for your eyes... While we're at it, apparently for best results you should be looking for tinted LEDs (not waterclear) with wide (60 degree? 100 degree?) viewing angles. Oh, and anything "high brightness"​ is out now. [[http://​midibox.org/​forums/​index.php?/​topic/​12087-mb-6582-cs-leds-water-clear-or-tinted/​page__hl__+white%20+led__st__40]]+  * **NOTE on LEDs**: apparently some time after the original writing of this WIKI page, it has been discovered that blue, purple, and white LEDs (well anything with a large proportion of energy ​in the high frequency ​end of the spectrum) are hard to use, and possibly also bad for your eyes... While we're at it, apparently for best results you should be looking for tinted LEDs (not waterclear) with wide (60 degree? 100 degree?) viewing angles. Oh, and anything "high brightness"​ is out now. [[http://​midibox.org/​forums/​index.php?/​topic/​12087-mb-6582-cs-leds-water-clear-or-tinted/​page__hl__+white%20+led__st__40]]
  
   * 15x Rotary Encoders. They are the ones that Voti sell [[http://​www.voti.nl/​winkel/​p/​SW-ROT.html]],​ but I didn't get them from Voti, I got them direct from Electronics China, part number R162EC-BD1-24C {{mb-6582:​r1-ec.pdf|Datasheet}} which have shaft length 20mm (L=20mm) and overall height of 26.5mm. If you look closely on the PCB, you'll see there'​s provision for smaller encoders with a different pinout, but they might not be the right height. The ones I use can be pulled apart and the detent removed, but leave the menu encoder detented for better handling of menus, patch changes etc. Other builders confirm that an "​Alpha"​ brand rotary encoder (Mouser part #: 318-ENC160F-24P ) is identical.   * 15x Rotary Encoders. They are the ones that Voti sell [[http://​www.voti.nl/​winkel/​p/​SW-ROT.html]],​ but I didn't get them from Voti, I got them direct from Electronics China, part number R162EC-BD1-24C {{mb-6582:​r1-ec.pdf|Datasheet}} which have shaft length 20mm (L=20mm) and overall height of 26.5mm. If you look closely on the PCB, you'll see there'​s provision for smaller encoders with a different pinout, but they might not be the right height. The ones I use can be pulled apart and the detent removed, but leave the menu encoder detented for better handling of menus, patch changes etc. Other builders confirm that an "​Alpha"​ brand rotary encoder (Mouser part #: 318-ENC160F-24P ) is identical.
wilba_mb_6582_control_surface_parts_list.txt ยท Last modified: 2010/12/15 03:22 by wilba