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Subject: Re: PCB problems please help

Date: 11/28/01 at 11:12 AM
Posted by: Darren
E-mail: darren@guartel.com
Message Posted:

In Reply to: Re: PCB problems please help posted by David Ashby on 11/28/01 at 7:15 AM:

Thanks David

There may be high impedance nodes, how would I cure it?

I don't understand what you mean about the LM324 DC path. The + is the input from the LPF, and the - input is connected to the output by a 1M resistor, a diode, and a 1nF capacitor, both output and - are connected to ground via resistors and also there is a feedback connected to each.

There is a high DC gain in the circuit, but no obvious heat sources.

Much appreciation
Darren


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