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About otropom

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    MIDIbox Newbie

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  1. Troubleshooting midiphy SEQ v4+

    Thank you latigid on and antichambre , i'm going to work on it :)
  2. Troubleshooting midiphy SEQ v4+

    @latigid on Hi everybody, I would like to put a simple on/off switch on the beast. Do you have any advice on wich emplacement i can safely cut a trace to do so ? thanks :)
  3. Out-of-stock parts for midiphy BOM tool

    unfortunally the only shop near is a "proxy market" with only beers and chips (not so bad !)  , the closest electronic vendor is like 3hours from where i live. Visibly TME seems the solution , shipping is like 8-9euro, i think its the cheapest around so i will stick with them ^^ thanks guys for your fast answers
  4. Out-of-stock parts for midiphy BOM tool

    Hi guys, i have to order back some cable sockets (mouser parts : 89124-0101, 89116-0101, 89110-0101), unfortunally at mouser they are asking something like 20euro of shipping + vat , its more expensive that parts themselves ! so i'm trying to find alternative for shipping to france but i cant find them at the only shop that i know : conrad (shipping is like 6euros with vat). does anybody have alternative sources for these within france and/or with not too expensive shipping ? thanks by advance
  5. midiphy SEQ v4+

    Here's the beast! It was my second diy project and after few hours of hard soldering I can finally enjoy this crazy sequencer ! Big up to Hawkeye for his videos, latigid on for support and TK to make us enjoy the midibox seq :) I was largely inspired by Bruno's mods (thanks for Sharing !) . just have to find a solution to correct the light leak between switches (Big problem imho) / wooden cheeks and everything will perfect ^^   PS : what s/n i should label it ?
  6. BLM pcb / parts cost

    Hi and thanks for your answer guys, yes i was thinking about the 16X16 (17x17 ?) , the same as here : if there's a new version coming later this year i will wait patiently for some news then :D
  7. BLM pcb / parts cost

    Hello, everyone, I'm considering building very soon a BLM and I was wondering if there were still any PCB vendors around ? also how much do you estimate the cost price of a complete BLM unit ? Thanks !
  8. midiphy SEQ v4+

    I'm using these mec Switches/caps also, you dont need to modify anything . Simply use standard leds (3.3v) and you're good.
  9. midiphy SEQ v4+

    It just misses a huge and ostensible "MIDIbox SEQ v4 +" at the back on the white part to assert the whole ;) Actually i work at a french adhésive Brandt (GT-Stickers) that make premium adhésives, keep me on Touch if you want, we Can Do that on measure :)
  10. Troubleshooting midiphy SEQ v4+

    everything is running great now, you were right about IC2 cold joint. I just have the matrix that display "mirrored" text can it come from a backward cable or something like that. ? in any case merci beaucoup for your kindness and your advices, i will finally be able to enjoy the midibox seq ! and it wasn't that easy for noob (second diy project) that was not comfortable with English  language :) learnt lot of things !
  11. Troubleshooting midiphy SEQ v4+

    Well, after repairing IC2 pin 16, (i suppose my problem came from pin/pad misalignement) i installed New câbles for each screen and protect the bottom of both oled connectors with adhesive tape, it worked !  With one problem, however, as you will see on the picture.  I tested each screen independently / on each port without any change and it appears that the problem probably comes from the core, any idea if it can still be IC2 or some other element? (So close from the end!) Thanks 
  12. IMG_0014.jpg

    Excellent job :)
  13. Troubleshooting midiphy SEQ v4+

    Just followed every of your recommandations. Checked R33 abcd : 3.2v on all you will find attached also the values that i have on both display ports pins and on the oled itself. after reworking on ic2 a saw a problem with the pin that was in front of C2 (solder did not stick) so in doubt i unsoldered IC2 and the pin was simply missing :/ . Do you think its the origin of oled problems ? also can i bridge directly the pin to C2 or i must bridge from somewhere else ? thanks !    
  14. Troubleshooting midiphy SEQ v4+

    Hi there Everythig is done and before assembling the sequencer, I wanted to test all the functions (always with midibox ng and seq_l/r). R.A.S (good news) except for the screens that don't work. At the second boot I had the right screen (nothing on the left one) which displayed 88888...over its entire surface and at the next boot, nothing, the same for both screens. I test this way (core->JA board->lemec1->lemec2 + both screens) - I checked that J15S is set to 3.3V, -Rework each core weld (in case...) - Checked the voltages, I have the same results as on these images (posted by "SimonSays"): http://midibox.org/forums/uploads/monthly_2019_05/IMG_0137.jpg.7a321f39f767fe44ff31e9f676c01c8a.jpg http://midibox.org/forums/uploads/monthly_2019_05/IMG_0788.jpg.a5e22618fcb98c9437a10976bc2d058c.jpg -tested the lcd command... no idea what to do at this stage;( thanks for any help !
  15. Troubleshooting midiphy SEQ v4+

    Hi there, not sure on how to proceed but i would like to have a blue /white scheme for the beat led. am i correct if go A->1k res->3 (blue) and B->4.7k res->1,2,3 or i should do fro B : B->4.7k res->1 B->4.7k res->2 B->4.7k res->3   thanks :)