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Inserted chips-fired up- aaaaaannd only step 9 lit ??? (solved)

nightworxxnightworxx
edited September 2013 in Troubleshooting

Hi folks,

finally got my built smoothly to the point after chip insertion. All seems set, voltage right, but when i fire up this baby then all leds light up and then only the red led of step 9 remains lit and that's it.

Any suggestions ?

And damned, i should have started this post in troubleshooting - ashes on my head -.-

Comments

  • fcd72fcd72
    edited September 2013
    If you are as clever as me, id check the orientation and place of every 595/165..... NOT THAT I WOULD EVER ADMIT I HAD SOME SCRAMBLED UP!!!
  • nightworxxnightworxx
    edited September 2013

    Thanks Frank,

    Good to know not to be left alone in the realm of total embarassment ! ;-)

    By the way, how flat on the PCB has the OLED to be ? I couldn't  get it managed closer than 2 mm above the PCB. Will this be a problem for the case ?

  • julianjulian
    so you mixed some ICs up and it is working now?
    the highest part of the oled should not exceed 10mm.
    the lower end of the oled pcb is about 2-3mm  abive the frontpanel pcb on my unit here.
  • nightworxxnightworxx

    Yup, OLED is next...and then tape for the tactile switches.

  • nightworxxnightworxx

    Fuck, shit, kill, destroy ! This baby is pure fun !

    What a complement for Xbase, 505 and MPC...this is a rocking bitch. Great job, Julian.

    This is by far the best you can get for this money.

  • julianjulian
    :^o
    Glad you like it!
  • nightworxxnightworxx

    OK, next issue (not a real one):

    maybe i am too dumb, but in the manual is written that the Midi channel assignment is done in the global settings. I found really everything but not where to assign the midi channel. Can anyone help me out ?

     

     

  • julianjulian
    Ah yes - I gotta update the manual.
    With the recent addition of the note out midi mode, the midi channel can be set per voice on the 2nd page of each voices mixer page
  • nightworxxnightworxx
    edited September 2013

    Ahh, now i found it...thx alot !

    But when i play a note, i can't hear anything, is there something to know, like switching from trigger to note ?OK, shouldn't have had so much beer yesterday, everything works fine so far. 

    I guess now it's time for RTFM and some serious gain matching. Damn again: i need more channels. I guess the time will come, when i am forced to switch to MADI.

  • fcd72fcd72
    Some day well get you....

    image
  • nightworxxnightworxx
    That's exactly where i wanna be !!! ;-)
  • dubtomsdubtoms
    Hey I've got a similar LED problem.

    When powered up I have the Voice 1-7, the Voice/Perf/Step/Load and the Start/Rec/Shift/copy groups that are lit.

    I double-checked for IC places and orientations but nothing came up.. :(
  • julianjulian
    edited October 2013
    the 4 mode LEDs + shit,rec,start are controller by U11, the last 595 IC in the chain.
    voice 1-7 and the copy LED are on U13 wich comes just before U11 in the 595er chain.

    All other LEDs are working?

    Check that
    U13 - Pin 14 is connected to U9 - pin 9. This is the serial data line for those shift registers

    Also:
    U13 - pin 11 and U9 pin 11 (shift)
    U13 - pin 12 and U9 pin 12 (load)
    should be connected.

    Also check for shorts on those pins.
    also check the resistor network orientations.

  • dubtomsdubtoms
    edited October 2013
    Well, I had forgotten to fix a short on one of them...

    I figured out myself but thanks anyway !! :)
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