Viewing 17 posts - 35 through 51 (of 56 total)
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  • #34836
    mybud
    Moderator

    For instance, the highlighted spots there might indicate an intermittent connection. Look for similar ‘starved’ points on the board and carefully retouch them. All this falls away if the circuit’s working as expected outside the box. Then we move on to plan B…

    #34839
    Anonymous
    Guest

    I removed it from the box and it still was not working so I reflowed those pot connections as well as the trimmer connections. Still no effect. What do you suggest checking next?

    #34841
    mybud
    Moderator

    Ok, let’s start from the top again. When you say ‘not working,’ it’s not chorusing or no sound in bypass or engaged?

    #34842
    Anonymous
    Guest

    There is no chorus effect. I still get sound through my amp with the pedal on and off.

    #34843
    mybud
    Moderator

    Ok, but it was working earlier (i.e. getting chorus) when unboxed?

    #34844
    Anonymous
    Guest

    Yes, it was chorusing last night when unboxed and then after I boxed it it stopped

    #34845
    mybud
    Moderator

    Man, that’s truly weird. Try adjusting the trimmer again (unboxed)?

    #34846
    Anonymous
    Guest

    Yeah very strange. I’ve been trying that for about half an hour and still no chorus

    #34847
    mybud
    Moderator

    Ok, so then clearly this is an intermittent fault. Check all your IC sockets for any dodgy joints. Then do the tap test. I’m comparing your pics to my build to see if there any errors, but all looks well so far.

    #34848
    mybud
    Moderator

    Voltage on the middle leg of my trimmer reads 4.12VDC (more or less 1/2 supply voltage). Try to get near to that and see if the chorus comes back.

    #34850
    Barry
    Keymaster

    Check your off-board wiring as well. After manipulating your project you could have easily bent the wires too much and might be hanging by a thread. If that’s the case redo the wiring by clipping off excess, strip, and re-solder.

    #34853
    mybud
    Moderator

    Thanks, Barry.

    #35415
    Anonymous
    Guest

    Well… here we are again. I got a replacement Mini-Me kit since I never got the first one working, and I’m having the exact same problem: still no chorus effect, regardless of where the trimmer pot is set. Here’s the board for reference. Not sure what to do now. I’m not amazing at soldering but this is the only kit I’ve had issues with. Any thoughts?

    #35416
    mybud
    Moderator

    I feel your frustration with this. It seems beyond coincidence that neither board works. Maybe post voltages with the new board?

    #35417
    Billy
    Moderator

    It’s difficult to know without seeing the DC jack are you taking both GND and G2 separately from the DC jack ground lug to the circuit pads as I say I can’t tell but it looks like only G2 or 1 ground wire goes to the DC jack

    From the build doc

    This board has 2 separate ground planes to prevent audible clock noise. Both ground planes need to be connected. Please make sure that pads GND and G2 are both grounded.

     

    #35418
    Anonymous
    Guest

    I originally had it wired like in the build document but someone on this thread recommended moving the DC Jack ground to G2

    #35419
    Billy
    Moderator

    Unfortunately I don’t have a pcb to test but any I’ve built I’ve always ran 2 separate grounds from the DC jack to GND and G2

    Easy enough to continuity check the G2 pad is connected to GND pads on your pcb

    It’s a weird one because when you think about it if they both connect to the DC jack then they will have continuity but if you check yours now you’ll know whether they actually connect on the pcb

     

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