Is the power LED on the KA-7100 part of the protection circuit?

[petehall347]

so both channels not adjusting to near on 0mv dc offset ?

 

[avionic]

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[petehall347]

pinching a wire on the led might not of helped the circuits .

 

[TonioK]

so both channels not adjusting to near on 0mv dc offset ?

Correct

 

[avionic]

There is a fair schematic/service manual on Hifiengine.com

 

[gort69]

This is reasonably close to the original LED

 

[avionic]

This is reasonably close to the original LED

This is an exact replacement from Newark
https://www.newark.com/multicomp/mcl223md/led-red-2mm-7-8mcd-625nm/dp/14N9442
http://www.farnell.com/datasheets/1693208.pdf


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[TonioK]

Does this do the same for the left channel as well as the right channel?

yes, both channels.