Need help on offset voltage adjustment

msj965

New Member
Hello:)
Just wanna ask how to adjust the offset voltage on kenwood kr5400 series. I just did the Bias adjustment.but the voltage on the output L&R is still high.

Thanks
 
A lot of Kenwoods rely on the differential input pair transistors for the DC offset. (No adjustment) Replacing them with new matched pairs will bring the DC down.

Rob
 
Hello:)

A lot of Kenwoods rely on the differential input pair transistors for the DC offset. (No adjustment) Replacing them with new matched pairs will bring the DC down.

Rob

I check the transistor part # its 2SA620WN what do you think the better replacement for this one.coz I cannot find this part # @ mouser.
Thanks
 
I would put some KSA992 in there. Buy about 10 or 15 so you can match a couple pairs.

Rob
 
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