Time to figure out what is wrong with my CR3020

[clinic-audio]

The coupler switch is behind the unit and is used to separate preamplifier from amplifier

 

[10sguru]

what is a coupler switch?

The CR3020 has a built in preamp section. The coupler switch allows you to separate the power amp section from this built in preamp section in the event you wanted to use either section as a separate component paired to another power amp or preamp, at least that is my understanding. There are several Yamaha experts in this forum that can most likely expand on the disadvantages/advantages of this type of configuration.

 

[avionic]

Just exercised the coupler switch as Dave suggested in post #3 and the volume in the right channel is now playing normally.

Disassembly and cleaning / deoxiting the switch. You can try squirting some deoxit into it. But it probably won't last very long.

 

[10sguru]

Disassembly and cleaning / deoxiting the switch. You can try squirting some deoxit into it. But it probably won't last very long.

Thanks again for all your help Dave

 

[avionic]

what is a coupler switch?

Your CA-2010 has one as well.

 

[Mr. Yamaha]

Your CA-2010 has one as well.

Which also needs full disassembly and cleaning, just like the 'mode' switch (direct coupled or cap coupled)

 

[avionic]

Which also needs full disassembly and cleaning, just like the 'mode' switch (direct coupled or cap coupled)

Just like all slide switches..

 

[Mr. Yamaha]

Just like all slide switches..

And the wafer switches

 

[avionic]

As long as your in there. Cleaning all the controls and switches would be a great idea.