D1302 Transistor Question

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I'm working on a large 6K amp all outputs have been replaced and audio driver board has been rebuilt.

I confirmed all the regulated voltages are correct and i get + - 180 volts of rail voltage.

My question is how do i test the D1302 muting transistor ?

I removed it from the board and it tested fine but the amp is not releasing out of mute.

So wondering how do i do a voltage test on the D1302 to confirm its good or defective ?
 
I recently picked up LCR-TC1 and now i'm wondering why I didn't get one sooner... Great little component tester, it tests a lot more then just transistors too. The best $22.22 I've spent in a long time!
 

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