Kicker CXA600.1

[rhempz01]

R176 side 2

 

[rhempz01]

R181 side 1

 

[rhempz01]

R181 side 2

 

[PapaZBill]

16.55kohm is resistence what u were looking for or capacitance?

Resistance is what I was looking for.

 

[PapaZBill]

40hrz input. and i have the same 40hrz all the way to ic6 still no output?

Do you have signal through U7? U6 pin 7 is the input to U7 pin 5. Be sure you have 40hz on Pins 5 & 7.

 

[PapaZBill]

If you have signal at U7. Look at IC6. Check the Vdc around IC6 and post. Then check to see if you have 40hz signal at R163,R167-10K ohm, then C17,C18-22uF/16v. Follow the signal to Pins 2 & 3 of IC7-LM311.

 

[rhempz01]

i changed all the opamps. I couldnt follow a decent signal at any of them, So they are all new.

 

[PapaZBill]

Would this be the side connected to Pin 2 IC7-LM311?

R181 side 1

 

[PapaZBill]

So as it stands do you have signal through U7 and to the input of IC7,R163 and R167?

Check the waveform at Pins 2,3 and 7 of IC7-LM311 and post screenshots.

You might try replacing C121-820pf. This is in the FB loop and has been known to cause this issue.