clem!

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About clem!

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  • Birthday January 01

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  1. Yamaha DX7II Cartridge DIY?

    Thx for the reply ilmenator, I didn't found any schematic for the Yamaha RAM4 or RAM5 on the web but I have a service-manuals for DX7II  and you can find pics of the PCBs of the RAM-Cartridges - so you are right. But I never worked with eagle and the spacing of the pins of the cartridge port is a bit uncommon, so it would be helpful not to start from scratch. Perhaps etching a  breadboard-catrtridge will do it. But I don't know how to create a matching connector in eagle. BTW Kölle am Rin is my old Heimat ;-) but that was 25 years ago. Best, clem!
  2. Hi there, I know this a is little bit OT and may be not very contemporary: I have bought an old DX7S and thought about building a RAM-Cartridge by myself. Maybe someone here has some experience with this or knows where to find completed eagle files or a pcb to do this. Best regards, clem!
  3. Cutting Fatar keybed

    I've done this here --> http://midibox.org/forums/topic/19776-connecting-fatar-61-df-keyboard/ without any probs. After proving the conductive paths, I have shorted the lowest octave of a 61 key Fatar TP/8S keybed with df contacts. There were 2 broken keys. Eventually for a 37 key-bed it's possible to use only one of the df-pcbs, but that depends on the kind of fixation, the holding and holes. Best regards, clem!
  4. Connecting fatar 61 df keyboard

    @:fundamental: Those are aluminium-L-profiles out of a building center.  
  5. Connecting fatar 61 df keyboard

    After solving some problems with bad soldering points and little softwareproblems, the little toy has got a form and is working. Thanks to TK. and all the others that helped. And now I've to fix the wheels, connectors for pedals, the pots and the CV-Out. Looks a little bit like a modular. Here ares some pics: 
  6. unorthodox behavior midibox ng

    Thank you Thorsten for your help. I've got the problem under control - yes there was an error, don't know why. But after formatting the sdcard and inserting the " typical keyboard configuration for a Fatar DF type with 61 keys" from the "midibox_ng_manual_ngc" into the default.ngc everything works as expected   [96240.295] [MBNG_LCD] no response from CLCD #1.1 [96240.295] [MBNG_LCD] no response from CLCD #2.1 [96240.295] Init DHCP [96240.395] [network_device_init] PHY initialized [96241.300] SD Card connected: [96241.377] [MBNG_LCD] no response from CLCD #1.1 [96241.452] [MBNG_LCD] no response from CLCD #2.1 [96241.781] Init DHCP [96241.786] [MBNG_FILE_C] Event Pool Number of Items: 198 [96241.786] [MBNG_FILE_C] Event Pool Allocation: 8636 of 24576 bytes (35%) [96241.801] [MBNG_FILE_L:23] ERROR: 'EVENT std_rgbled': label too long, should be 8 chars maximum! [96241.806] [MBNG_FILE_L] 1 error has been found while generating the .BIN file - please fix DEFAULT.NGL! [96241.813] [MBNG_FILE_S] snapshot #0 not stored in /DEFAULT.NGS yet [96241.817] [MBNG_FILE_R] /DEFAULT.NGR (optional run script) not found [96243.817] Creating initial DEFAULT.NGL file [96243.817] [MBNG_FILE_L] The file '/DEFAULT.NGL' already exists - won't create a new one! [96243.818] Failed to create file! (status: -1) Best, clem!  
  7. Hi all, i've connected a fatar df 61 keybed (now 49 keys working fine with midibox kb (v1.016) on lpc17) and now changed fw to midibox ng (v1.033) and have got some problems. The order of the keys is wrong (rows etc.) and no velocity. No problem I thought and tried to adapt the keybed by setting kb 1 and tried debug mode via miosstudio but this is not working. The parameters seem to change but no visual or audible effect. The wrong order and missing velocity is still there. So what is wrong or do I have to compile the firmware first with other settings, if I want to use it with my keybed? Best, clem!
  8. Connecting fatar 61 df keyboard

    Error found and solved - no it was not the cable. It was a bad soldering point at J8/9 and a pin from IC1 was not plugged. Everything is fine now. Next I need to adapt the dynamic curve and I have  to shorten the keybed by 1 to 1,5 octaves, there are some defective keys and 5 octaves are to much for the planned keyaxe.
  9. Connecting fatar 61 df keyboard

    Thank you FantomXR, if twisted means pin1 from Core32, J8/9 goes to pin 1 of DIO_Matrix, that is what I have done. So this can not be the reason. I will proove the soldering and the connections of the setting with the multimeter one more time, especially the micromatch-connector maybe a cause of defect. BTW: I've connected a DEM 20485 SYH-LY, KS0066 based 4*20 LCD for EUR 16,50 from Watterott (good price I think), here is the plan for the wiring that differs in the cathode/anode from other displays: mbhp_lcd_mios32_dem20485.pdf
  10. Hi all, after long absence I have decided to build a midibox kb. So I have soldered  LPC17, loaded up midibox kb and thought, DIO_matrix "1 to 1" connected to keybed (as shown here: http://www.ucapps.de/midibox_kb/midibox_kb_fatar_df_61_interconnections.pdf) and core would produce a working system. But it seems I have failed, I don't get midi note_on-messages from the core. Do I have to adapt the setup somehow or is the 1 to 1 connection the false option? Best clem!
  11. AC Sensorizer Glove

    With a little delay and after a long time of absence from this forum I found this thread too.   I like the glove. It is a very interesting concept.       Isn't it very difficult play ambitious rhythmically patterns this way with thumb and opposed fingers?   Did you know the Guidonian Hand? --> http://commons.wikimedia.org/wiki/File:Guidonian_hand.jpg Guido d'Arezzo was one of the first western music pedagogist, he invented it in 11. century as a learning aid for young musicians. So your nick isn't only a nick :shocked: .
  12. psu with 12 and 5 V modifications needed?

    Thank you. Okay - next time I use the search function ;-) Best regards
  13. hi, I don't want use my MIDIbox SID any longer with two powersupplies. I've found a Switching-PSU from an external harddrive with 12V and 5V. Is it possible (secure and without humming) to place those connections behind the regulators 7812 and 7805? Will the power be stable enough or is it better to remove them and to solder in bridges there and connect the new psu at the power connectors? best regards clem!
  14. long time ago but I found this: Block RD50 / 0.2 http://www.produktinfo.conrad.com/datenblaetter/400000-424999/422548-da-01-ml-WIDERSTANDSDRAHT_BLOCK_RD100_2_0_de_en.pdf
  15. Midifying Yamaha keyboards

    Hi Rufus, don't know what you want to do with the keyboard. Maybe your thread belongs more to midification than to design concepts. This eventually might help you: http://www.midibox.org/dokuwiki/doku.php?id=midiboxkb_-_using_a_c64_keyboard_as_input 'coz what you have there is a 4 by 12 scan matrix with switches and diodes, you only have to change the number of columns and rows in code and perhaps alter the note numbers. Than your little toy will work. You will only need to solder a nice 30Pin conector to your dins and douts and connect it directly with your keyboard-scan-board. Best regards, clem!