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keninverse

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Posts posted by keninverse

  2. FS: MAX525

    in Fleamarket

    Posted · Edited by keninverse
    updates

    Been holding onto these for quite some time and I realize now I won't be doing much with them.  NOS ICs not pulls.  Purchased direct a loooong time ago and stored in static sensitive packs.

    MAX525BCPP $15ea

    MAX525ACPP $SOLD

    Shipping should be very cheap unless tracking is needed. PP Preferred will ship WW

    max525.thumb.jpg.1a9615ed1469e269e3d36c2

  3. MB6582 and MIOS Problems

    in MIDIbox SID

    Posted

    Got it working!!!  Turns out there was an intermittent connection at J11...I apparently missed soldering a row on the header so the midi out wasn't making it back out.  

     

    Thanks so much for helping Thorsten and Antonio!!!!

     

    I have one problem that I'm tracking down.  The LFO waveform switch doesn't seem to be stepping through the waves.  Maybe I'm missing something here.  I need to read through the walk through a little more carefully.

     

    Thanks again guys!

  4. MB6582 and MIOS Problems

    in MIDIbox SID

    Posted

    Thanks Thorsten,

     

    I had a chance to throughly check things tonight and gone through all the CORE testing.  Everything seems to be in order with the exception of one test.  There's 5.03V getting into the 5V supply line.  I'm seeing 4.32V at the M- pin of J12A (midi out).  I'm seeing this on the other side of the 220r resistor R8 and traced this back to J11 but I'm unsure why this is happening.  I'm a little confused here.  I can follow this voltage but I lose it after the bottom row of J11 and I don't see where this trace leads....I'm using the MB-6582_Base_PCB_Color pdf that I have to follow traces.  I'm not sure exactly how to follow this voltage.  Any ideas?

     

    Thanks!

     

    ken

  5. MB6582 and MIOS Problems

    in MIDIbox SID

    Posted

    I'm having a bit of an issue with my build I recently completed.  Please excuse the newbness...I'm a bit new to the digital realm of synths but plenty of years in analog circuitry.  I finally took the dive into this project to accompany my expanding modular synth and it looks like I hit my first wall.  Running MIOS on OS 10.8.4 with a MOTU Fastlane that doesn't seem to appear on the blacklist. PIC was purchased from Smash w/V1.9G and devID 0. I have all the other PICs pulled so I can get this thing tested.  PSU is a linear Condor +5V/3A, 9V ~1.5A

     

    MIOS on launch scans the MIDI interface

     

    MIDI: Fastlane USB #3 Port B

     

    Scanning for MIDI Inputs...

    [1] Fastlane USB #3 Port A

    [2] Fastlane USB #3 Port B*

    MIDI Monitor Ready

     

    ...end nothing else after this

     

    Output wind ow shows:

     

    Scanning for MIDI Outputs...

    [1] Fastlane USB #3 Port A

    [2] Fastlane USB #3 Port B*

    MIDI Monitor Ready

     

    [16697.988] f0 00 00 7e 32 00 00 01 f7

    [16697.988] f0 00 00 7e 40 00 0d 02 00 00 00 00 00 00 01  00 00 00 00 f7

    [16698.199] f0 00 00 7e 40 00 02 f0 00 00 00 01 10 11 12 13 14 15 16 17 18 19 1a f7

    [16698.412] f0 00 00 7e 40 00 02 f0 00 00 00 01 10 11 12 13 14 15 16 17 18 19 1a f7

    [16698.512] f0 00 00 7e 40 00 02 f0 00 00 00 01 10 11 12 13 14 15 16 17 18 19 1a f7

    COUNTING CONTINUES

    ....

     

    When I send a query it seems to contact the PIC because the LCD window shows [Rebooting MIOS]

    Then flashes the MIOS version and then shows [Ready]

     

    So far I've started on the debug page and nothing is really working except for MIDI is showing the loopback on TEST PC1 

    TEST MIDI1 Pass

    TEST MIDI2 Fails

    TEST OUT1-3 Fails

     

    TEST IN1A&B Good

     

    I need to continue with the other tests but I'm wondering if this maybe a problem with my MIDI interface before I continue.

     

    Thanks so much for any help.

     

     

     

     

     

     

     

     

     

  8. FS: MAX525

    in Fleamarket

    Posted

    Hello all,

    I have 4 of these  and since I just finished another poly M-CV I don't think I'll be needing these...

    I have way too many projects.  Bought them at the local parts house so make me an offer...

    Thanks,

    ken m.

  11. Midid Machine Control

    in Design Concepts

    Posted

    I'm trying to access a RS7000...I'm a synthesist/guitarist but I need to be able sometimes to start/stop sequences as well as tap tempo.  I don't think MMC can handle tap tempo but I would like a footcontroller to start/stop sequnces as well as change sequences (which can be handled by MMC).  So I was thinking the midibox would be the best way to go since I can tailor my setup.  What do you guys think?

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