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Schrabikus

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Posts posted by Schrabikus

  4. MIDIbox FM background noise [solved]

    in MIDIbox FM

    Posted · Edited by Schrabikus

    Have no words to thank you, Thorsten!!!

    With 100 uf caps at OPL3 board the noise decreased by half (MBFM_noise_capacitors.mp3)

    Than i've changed 47 uf PSU caps with 200 uf and added 2x10 ohm resistor

    Aaaand the noise disappeared completely!!!!! (MBFM_noise_capacitors_resistors.mp3) :sorcerer:

    conclusion: switching PSU from dvd player can be used in audio apps!

    MBFM_noise_capacitors.mp3

    MBFM_noise_capacitors_resistors.mp3

  5. MIDIbox FM background noise [solved]

    in MIDIbox FM

    Posted · Edited by Schrabikus

    Hello, friends!

    Can you please listen to attached mp3 and tell, is it normal, or something wrong?

    Noise remains when i disconnect LCD and CS from the core.

    So far i can not exclude PSU (it's one from dvd player +12v/-12v/+5v) but noise lasts about half a second after switching PSU off.

    Cable from core to OPL3 board is about 12cm, soldered directly to core.

    Thanks in advance.

    And the OPL3 +5v led lights with only J2 connected.

    MBFM_noise.mp3

  8. MBHP_CORE_LPC17 PCB bulk order

    in Bulk Orders

    Posted · Edited by Schrabikus

    Joris, you're so lazy!

    I've made my SEQv4 without any questions at forums and with only one factory PCB (LPC Xpresso)

    This forum has comprehensive information about it.

    The main thing is your desire and respect to community members :ahappy:

  12. Кто-нибудь заказывал у SmashTv?

    in Russian

    Posted

    A-character, как вариант LPC17 + Ð¼Ð°ÐºÐµÑ‚Ð½Ð°Ñ Ð¿Ð»Ð°Ñ‚Ð° (Ñмотри у мены в галерее)

    К тому же LPC17 перÑпективнее. Мне SmashTV по поводу доÑтавки в РоÑÑию не ответили.

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