Yamaha A-720 ampflifier servise manual - diyAudio
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Old 1st April 2007, 06:57 PM   #1
Omaro is offline Omaro  Latvia
diyAudio Member
Join Date: Mar 2007
Default Yamaha A-720 ampflifier servise manual

Does anyone have a copy of the Yamaha A-720 servise manual.
Please send me it to omaro@apollo.lv
In my ampflifier don: t work reley draiver correcly.
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Old 7th April 2007, 05:55 PM   #2
Omaro is offline Omaro  Latvia
diyAudio Member
Join Date: Mar 2007
I find servise manual Yamaha A720.
Its OK.
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Old 12th May 2010, 10:34 PM   #3
diyAudio Member
Join Date: May 2010
Location: Vancouver Canada
I too am looking for a service manual for a YAMAHA A-720.

Of the 4 twisted pairs from the power supply, 3 have very low ripple, but the 4th has about 30% sawtooth. The amplifier seems to be working OK, no hum.

If you have a manual, I'd appreciate a copy to normancousins@hotmail.com

Thanks Norman
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