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Yamaha A 1020 Class A amplifier issues

T

T3SAM

Active Member
Hi, I have an amp Yamaha A-1020. It works fine except in PHONO no sound in R ch. In Aux, CD etc it has sound in both ch.
I have checked all the connections, soldering, All the soldering is fine. Cleaned all the switches and pots.
I have attached the service manual here. Will appreciate your kind advice. Thanks.hfe_yamaha_a-1020_service_011.png
 

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Last edited:
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avionic said:
Did you disassemble the slide switches for cleaning ? If not, they are likely still fouled. INPUT SELECT and PHONO SELECT..
Click to expand...
Thanks lot avionic, really appreciate. I have cleaned and lubricated them really well without removing. I will disassemble them and see whats going on and let you know. Thanks
 
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