GHOST in 3 band graphic equalizer!! SOS!

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Hi csom

check that pin 3 IC1A and the input connectors all have a ground connection as per (3 BAND EQ ) schematic .

Thank you so much Epicycle for your kind response.

I compared the schematic and the PCB I made.

They seem to be correct after I fixed my initial mistake as pointed out by Bobo.

But still I will check it again as per your suggestion and report you back.
 
Hi csom

check that pin 3 IC1A and the input connectors all have a ground connection as per (3 BAND EQ ) schematic .

You are right!

It is finally solved now. I had to interconnect ground tracks. My bad mistake.

Now everything is working fine. I checked with output from cell phone, mp3 player, CD player, PC... all. :)

Thank you really so much :)

Wish you a happy new year :)
 
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