Problem with Mini Me (solved)

[Anonymous]

I built a Mini Me Chorus Kit but it doesn’t work. There is no effect in the sound. I think the oscillator is not oscillating. I have a sheet with all the voltage accross the circuit that I should have and a lot are wrong. Can you help me debug this ?

Here is the schematic of the circuit.

Here is the sheet with all the voltages of the circuits (you can zoom in). If there is no actual voltage, that meens it’s correct.

[Cybercow]

We need good, clear, close-up photos of the work. Please show us photos of both sides of the PCB and ALL the wiring so we can clearly see what is connected where.

[Anonymous]

Here are some pictures :

[Chuck]

Looks like you need to connect G2 at the top left of the board (I know this because I missed it on my own build).

Chuck

[Anonymous]

I have a component leg accross the two sides of the board in G2 hole, do I need to connect to something else ?

[Playsforfun]

I think your red wire should go to the 9v pad but it looks like it goes to ground. No power?

[Anonymous]

The red wire goes to 9V and the green to GND, there is power on the board

[Playsforfun]

Build doc states that D4 should have a diode or a jumper across the pads the way I’m reading it. I haven’t built the new board version yet.

[Barry]

Install the diode at D4.

Be sure those pots do not short on the back of the board solder joints.

Hi Playsforfun! Welcome back.

[Anonymous]

Thanks PlaysForFun that was the problem, I ommited this part.

The last problem I have know is that the LED don’t light up. I’ve soldered as mentioned in the build doc but I have no red or green. I’ve checked the polarity. What voltage should I have on pins 1,2, 3 ?

[Billy]

Your LED needs to be common anode, centre pin positive two outer pins ground

[Playsforfun]

Glad to help, eliobou. This chorus circuit is excellent. I keep one nearby always.

[Anonymous]

It now works well thank you all guys !

[Author]

Posts