A. Power Switch � This switch turns the AC power ON and OFF. When the switch is OFF, the amplifier is completely shut down. B. Power Indicator � When the indicator is illuminated the Pro Junior is receiving power.
C. Tone � Adjusts the amount of boost or cut in the upper mids and highs. D. Volume � Adjusts the overall loudness of the amplifier. E. Input � A high impedance, high sensitivity plug-in connection for instruments.
Pro Junior rear panel
F. Speaker Connector � This jack provides a connection for the internal speaker. An Eight Ohm external speaker cabinet may be used instead of the internal speaker. WARNING: NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL ONLY.