Author Topic: I've designed a Filter Pedal for Bass  (Read 2024 times)

snk

Re: I've designed a Filter Pedal for Bass
« Reply #60 on: April 27, 2019, 05:15:16 AM »
Hello,
First report :
Also, if you would like to check that the ground wire (middle lug of the voltage regulator) is connected to pin 7 of the 567 chip?
Yes, it is.
I tested with my DMM (middle lug of the voltage regulator to pin 7 of the 567 chip), and it beeps as expected.

After checking continuity,
ROW A : no beep produced by the DMM, as expected => GOOD.
ROW B : It beeps, as expected => GOOD
ROW C : no beep, as expected => GOOD
* ROW D : my DMM screen displays a value around 1030, but it doesn't beep => strange *
ROW E : no beep, as expected => GOOD
ROW F : no beep, as expected => GOOD
ROW G : It beeps, as expected => GOOD
ROW H : It beeps, as expected => GOOD

could you also check for solder bridges between paths.
I didn't noticed anything suspect.