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Viewing 14 posts - 1 through 14 (of 14 total)
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  • May 15, 2010 at 3:13 pm #80212
    B.Daws
    Participant

    I have been searching the forums for the last 15 minutes and cannot find this old post! I think Bill posted it one time but it was the settings you use on the MicroSynth to adjust the internal trim pot. Does anybody know where it is or where I can find that picture? Thanks!

    May 15, 2010 at 6:41 pm #102688
    bill ruppert
    Participant

    What version of the Microsynth do you have?
    Bill

    Quote:
    I have been searching the forums for the last 15 minutes and cannot find this old post! I think Bill posted it one time but it was the settings you use on the MicroSynth to adjust the internal trim pot. Does anybody know where it is or where I can find that picture? Thanks!
    May 15, 2010 at 9:25 pm #102691
    bill ruppert
    Participant

    For the new XO version:
    PREAMP GAIN ADJUSTMENT The preamp gain in the Bass Micro Synth has been set at the factory for use with a bass equipped with single-coil passive pickups. If you will be using another instrument with higher or lower output, it may be necessary to readjust this setting. A screwdriver or alignment tool with a tip width of no more than 1/16″ is required. To access the preamp gain adjustment, remove the bottom plate from the Bass Micro Synth. Look for the small trim pot in the lower left corner of the circuit board, it is labeled TRIM1 GAIN TRIM. Turning the trim pot clockwise will increase the preamp gain. Turning it counter-clockwise will decrease preamp gain. Please do not touch any other components when the bottom plate is removed or you risk damaging the circuit board or the components.

    For the old style big box, there is a hole on the bottom of the case where you access the input trimmer.

    June 18, 2010 at 12:01 am #109565
    Aaron Freeman
    Participant

    The instructions provided in the manual don’t seem to do this device justic. I took off the back panel and have no idea where to find this Trim pot. There are no labels. I mean, I’m looking at the “bottom left” and all I see is a square with 9 thingies (forgive my circuittry ignorance), with 3 wires attached from the main circuit board; no “Trim1 Gain Trim” to be found. Can someone explain this process in perhaps a more clarified manner, so I don’t tear this thing apart trying to find the pot? Maybe a visual demonstration or even a picture of what a trim pot *should* look like.
    Thanks

    June 18, 2010 at 12:15 am #109569
    bill ruppert
    Participant

    What version do you have??
    XO version has only one trim pot.
    Is yours an old big box?
    If so it in the upper right hand corner.
    Bill

    Quote:
    The instructions provided in the manual don’t seem to do this device justic. I took off the back panel and have no idea where to find this Trim pot. There are no labels. I mean, I’m looking at the “bottom left” and all I see is a square with 9 thingies (forgive my circuittry ignorance), with 3 wires attached from the main circuit board; no “Trim1 Gain Trim” to be found. Can someone explain this process in perhaps a more clarified manner, so I don’t tear this thing apart trying to find the pot? Maybe a visual demonstration or even a picture of what a trim pot *should* look like.
    Thanks
    June 18, 2010 at 2:47 am #109572
    Aaron Freeman
    Participant

    I have the newer version. Can you describe how the trim pot actually looks?

    June 18, 2010 at 3:28 am #109573
    bill ruppert
    Participant

    Here is a picture showing the trim pot.
    Adjust with a very small screw driver.

    mstrim.jpg

    Quote:
    I have the newer version. Can you describe how the trim pot actually looks?
    June 18, 2010 at 2:00 pm #109578
    B.Daws
    Participant

    Thanks for the help Bill. I knew where the trim pot was but I remember seeing this template(that was the front of the Microsynth) that showed what to set the settings on in order to adjust the trim pot while you hit the switch and check between the two levels. Any idea of what I’m talking about? I’m pretty sure the it was just the guitar slider up to almost full but I didn’t know where I should have the trigger. Thanks again!

    I’m so stoked about the new Germanium BMP too!!!

    June 18, 2010 at 3:43 pm #109580
    bill ruppert
    Participant

    Here is that template for a neutral setting:
    Set trim pot so on and off levels are the same.
    Good luck Bill
    ms.jpg

    Quote:
    Thanks for the help Bill. I knew where the trim pot was but I remember seeing this template(that was the front of the Microsynth) that showed what to set the settings on in order to adjust the trim pot while you hit the switch and check between the two levels. Any idea of what I’m talking about? I’m pretty sure the it was just the guitar slider up to almost full but I didn’t know where I should have the trigger. Thanks again!

    I’m so stoked about the new Germanium BMP too!!!

    June 18, 2010 at 3:50 pm #109581
    bill ruppert
    Participant

    Here is a link for all the MicroSynth Sample Templates:
    https://www.ehx.com/forums/viewthread/2974/

    June 18, 2010 at 7:11 pm #109587
    B.Daws
    Participant

    You the man Bill! Thanks so much.

    January 7, 2020 at 7:50 pm #125725
    CrashDelta
    Participant

    Hey

    With guitar and stop frequency ally way up, everything else all the way down and the trim pot set all the way up I’m hitting +7 dBu off and -4dBu on. Why is that?

    January 7, 2020 at 8:26 pm #125726
    EHX STAFF
    Keymaster

    If it is not a vintage unit please write the techs at info@ehx.com

    January 7, 2020 at 8:36 pm #125727
    CrashDelta
    Participant

    Never mind… rookie mistake, I must’ve moved the sliders without noticing it while adjusting the trim pot.

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