Yet another LM3886 PCB post! - Page 3

Holmes81 · 20th October 2011, 08:04 PM

AndrewT I think I have spotted the part that is troubling you.

From the +ve terminal of the DC blocking cap there is no connection to R1 (input resistor). So thanks for raising that issue!

Also there is not input attenuation, asI plan on driving this from DAC(yet to be built) I will add the attenuator, placed between the +ve of DC blocking cap and R1, the other end of the cap going to GND.

I'll revise and repost!

Holmes81 · 10th November 2011, 07:31 AM

Ok,

Sorry for the delay, I've made a few tweaks to the PCB and am happy with it. So unless there are any glaring obvious issues I will start work on the PSU pcb!

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20th October 2011, 08:04 PM	#21
Holmes81 diyAudio Member Join Date: Dec 2009 Location: Kent	AndrewT I think I have spotted the part that is troubling you. From the +ve terminal of the DC blocking cap there is no connection to R1 (input resistor). So thanks for raising that issue! Also there is not input attenuation, asI plan on driving this from DAC(yet to be built) I will add the attenuator, placed between the +ve of DC blocking cap and R1, the other end of the cap going to GND. I'll revise and repost!

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