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output stage bias adjustment - Yamaha A-560 stereo amplifier

 
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Dr Jefyll



Joined: 17 Jan 2010
Posts: 5
Location: Ontario, Canada
PostPosted: Sun Jan 17, 2010 3:50 am    Post subject: output stage bias adjustment - Yamaha A-560 stereo amplifier Reply with quote
I've just replaced the STK3042 voltage amplifier in this lovely old Yamaha A-560 stereo amp. And now I realize I should probably check and re-adjust the bias for the output stages.

I realize this is a fairly simple operation but unfortunately I don't have a Service Manual and I don't know the correct specification for setting the idle current. Can anyone advise me? Thanks!!
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jts1957



Joined: 24 Nov 2008
Posts: 2476
Location: Far, Far Away
PostPosted: Sun Jan 17, 2010 5:05 am    Post subject: Service manual Gives idle current adjustment see..... Reply with quote
http://elektrotanya.com/yamaha_a560.pdf/download.html

1 free dwnload per day allowed...enjoy
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Dr Jefyll



Joined: 17 Jan 2010
Posts: 5
Location: Ontario, Canada
PostPosted: Sun Jan 17, 2010 8:03 am    Post subject: thank you Reply with quote
Awesome! Thank you, and best regards to everyone in Far far away!
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