No output from Condor

Started by WelshWonder, March 22, 2007, 05:29:29 PM

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WelshWonder

Hi All,

I built the Condor Cab sim from ROG using the recommended layout -> http://www.runoffgroove.com/condor-pcb.pdf

I'm not getting any output from it. Voltages are as follows;

Battery: 9.04V

U1 - TL072IP
1: 4.46
2: 4.46
3: 3.90
4: 0
5: 4.13
6: 4.45
7: 4.45
8: 8.92

U2 - TL072IP
1: 4.45
2: 4.45
3: 4.26
4: 0
5: 4.25
6: 4.44
7: 4.44
8: 8.90

Q1 - J201
D: 0.27
G: 0
S: 0.13


Any ideas?

mcasey1

Ive found the trimpot in this circuit needs to be set to a very fine point in order for signal to be heard.  I would double check the trimpot.

mdh

I second mcasey1's comment.  The drain voltage should be somewhere close to 4.5V.  Everything else looks fine to me.

WelshWonder

Yeyyy, got it working, adjusted the trimpot as recommended and now I'm reading....

D: 4.45
S: 0.32
G: 0

Thanks guys...