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Tagged: Chorus, circuit, help, pedal build
- This topic has 55 replies, 7 voices, and was last updated 1 year, 2 months ago by
Billy.
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January 20, 2025 at 9:28 am #34836
mybudModerator
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…
January 20, 2025 at 10:08 am #34839Anonymous
GuestI 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?
January 20, 2025 at 11:07 am #34841
mybudModeratorOk, let’s start from the top again. When you say ‘not working,’ it’s not chorusing or no sound in bypass or engaged?
January 20, 2025 at 11:11 am #34842Anonymous
GuestThere is no chorus effect. I still get sound through my amp with the pedal on and off.
January 20, 2025 at 11:12 am #34843
mybudModeratorOk, but it was working earlier (i.e. getting chorus) when unboxed?
January 20, 2025 at 11:14 am #34844Anonymous
GuestYes, it was chorusing last night when unboxed and then after I boxed it it stopped
January 20, 2025 at 11:17 am #34845
mybudModeratorMan, that’s truly weird. Try adjusting the trimmer again (unboxed)?
January 20, 2025 at 11:18 am #34846Anonymous
GuestYeah very strange. I’ve been trying that for about half an hour and still no chorus
January 20, 2025 at 11:23 am #34847
mybudModeratorOk, 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.
January 20, 2025 at 11:38 am #34848
mybudModeratorVoltage 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.
January 20, 2025 at 2:51 pm #34850
BarryKeymasterCheck 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.
January 20, 2025 at 3:20 pm #34853
mybudModeratorThanks, Barry.
February 18, 2025 at 11:48 pm #35415Anonymous
GuestWell… 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?

February 19, 2025 at 1:26 am #35416
mybudModeratorI feel your frustration with this. It seems beyond coincidence that neither board works. Maybe post voltages with the new board?
February 19, 2025 at 8:16 am #35417
BillyModeratorIt’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.
February 19, 2025 at 8:18 am #35418Anonymous
GuestI originally had it wired like in the build document but someone on this thread recommended moving the DC Jack ground to G2
February 19, 2025 at 8:40 am #35419
BillyModeratorUnfortunately 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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