[signals 2112]

   

hola, tiene un potenciometro de doble tap central el control de volumen? mi radio no tiene esa pieza fisicamente

<moderator edit: google translation below>

hi, does the volume control have a central double tap potentiometer? my radio doesn't have that piece physically

[Greg]

Do you ask this because the volume control has only 3 terminals and you are expecting it to have 4 based on the schematic?

If so, I am guessing that the body of the volume control may be the 4th terminal (ground terminal). Bolting it to the chassis would provide the ground connection.

[Ron Ramirez]

Part (45) is the volume control. Part (49) is the tone control, separate from the volume control.

La parte (45) es el control de volumen. La parte (49) es el control de tono, separado del control de volumen.