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Chip Amps Amplifiers based on integrated circuits

LM3875 Problem
LM3875 Problem
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Old 23rd September 2004, 07:40 AM   #1
nitin is offline nitin  India
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Default LM3875 Problem

hey to all,

I'm new to DIY and made a gainclone LM3875tf based on the National for single supply config. The problem is the amp is work fine when RCA cables are connected to TV out but when i connect CD player( sony,pioneer) the heavy distortion come into play.but the CD players work fine with sony amp when connected to cd input but like mine when connected to phono to sony amp which have got two input CD and PHONO.

As this amp is intended to work with cd player so do i have to make some change to make sure the output is as fine as with sony amp.Please suggest.
I have used common ground and inductor wire is not used in zobel.
Attached National single supply config.
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File Type: jpg single supply for lm3875.jpg (21.5 KB, 56 views)
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