Question about Insignia Audio & Video Receivers
This type of volume control is often called an encoder. Basically it is a control for an electronic volume control chip. Rather than a vairable resistor like the "old fashioned" volume controls, this one basically is a rotary on/off switch. As you turn it the internal fingers pass over copper bars causing quick on/off sequences. These are interpreted as vol up and vol down.
Realise that this is an over simplification, but is essentially how it works. Your unit is fine.
Posted on Jul 29, 2008
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