JVC VN 300 BIAS adjust value

[Lynyrd]

Hello
Need bias adjust value on JVC VN 300 INTEGRATED Amplifier.
Nothing on service manual.

Thanks

SM.
https://elektrotanya.com/jvc_vn-300_amplifier_sch.pdf/download.html

 

[mjf]

usually these old quasi comp amps have a bias current
from 10 mA ..........40mA when warmed up

 

[Lynyrd]

20mV is ok......

 

[mjf]

......20mV across both emitter res ( =1ohm ).

if 20mV across one res ( 0,5ohm) , you should have proper heat sinks,
especially in the summer.

 

[Lynyrd]

then I think 10mV to 0.5 ohm is better