Hello everyone. I fried a trimmer on my yamaha EM-150. The side says 620E-220(ohm)B.
I am trying to figure out what would be a good wattage rating for a replacement. I have included a photograph of the schematic for this part of the circuit.

Thanks in advance!

 

Hello,

Do you have a photo of the trimmer (with a scale next to it)?
On the size we could estimate its power.

Bertus

 

According to the circuit schematic, the trimmer labelled B220 should be about 0.25W. If it is burnt then try replacing with 0.5W or 1W, 220-ohm trimpot.

 

According to the circuit schematic, the trimmer labelled B220 should be about 0.25W. If it is burnt then try replacing with 0.5W or 1W, 220-ohm trimpot.

Thank you MrChips! Would you be willing to share the schematic? I wouldnt mind looking it over just for kicks.

 

What schematic? I am going by the schematic posted on your opening post #1.

 

According to the circuit schematic, the trimmer labelled B220 should be about 0.25W. If it is burnt then try replacing with 0.5W or 1W, 220-ohm trimpot.

Thank you MrChips! Would you be willing to share the schematic? I wouldnt mind looking it over just for kicks

What schematic? I am going by the schematic posted on your opening post #1.

Oh, gotcha. I thought maybe you had the full schematic.
Thanks for the help though!

I was considering 1/2w but was a bit uncomfortable about it. Always comforting to get a second opinion.

 

You can download the complete service manual here:

http://bmamps.com/Schematics/Yamaha/Yamaha EM150.pdf

 

You can download the complete service manual here:

http://bmamps.com/Schematics/Yamaha/Yamaha EM150.pdf

DUDE! THANK YOU!