is low signal ok when follow the audio signal.

[kjs]

I´m trying to learn to read schematic and troubleshot.

I want to know how to follow the audio signal, I have connected an signal to input
and uses this way with a capacitor:

Simple Circuit Debugging

After the first component a capacitor 100nf I get really low signal.
And in and out on CD 4069 is really low.

Just want to know if a really low signal means Its ok before I continue.
And keep going to were I dont get any signal at all.

 

[BuddytheReow]

Right after C1 your sound should pretty much be identical to bypass tone. Probe it at the input point too and compare volume levels.

 

[kjs]

When testing at this points both are significant lower in volume then green.

 

[BuddytheReow]

C1 has 2 purposes here. It filters out any DC from the audio source (coupling filter) and removes the extreme low end of the signal (EQ-ish). What signal are you putting through? Guitar, bass, etc?

 

[kjs]

Just random music, into a small amp

 

[BuddytheReow]

2 things:

Double check the value of the 100n. Is it 100n?

Secondly, you can keep going with your audio probe and let us know where the signal dies. BTW what circuit are you testing? Can you provide a schematic?

 

[kjs]

Will do.. Thanks

 

[kjs]

100n is the same as 100 nF ( 0,1 uF ) ?
this is the one I got now:

100nF 0.1uF 100V 5% Polyester Film Box Type Capacitor

FARATRONIC - Get It Fast - Same Day Shipping

www.taydaelectronics.com

This is the build, The Schematic is from the PCBversion.
On the schematic It looks like all three legs are used but in the board (VR1) the leg at the bottom don't go anywhere.

well.. to this point the trim1 200k (VR1) I got signal, to the first leg but nothing from the others, but really low in volume compared to when I start from no component.

Guess the trim want to be adjusted but didn´t have the time to continue. But It does´t feel like the signal should be
this low.

 

[BuddytheReow]

Since you've got stripboard I would check all your solder joints and run your iron along the tracks to clear any stray solder