Realistic 120-1451 - Manual (Page 6)

3. Place a disc on your Record Changer/Turntable and activate it.
4. Adjust VOLUME, TONE and BALANCE for best sound.
NOTE: Only a Record Changer/Turntable with a ceramic cartridge will
function with this system.
TAPE Operation
1. If you have cables connected from a Tape Deck with an output of
approximately 1/2-volt to the TAPE jacks on the rear of the unit, set
the Selector switch to TAPE.
2. Turn power "On" using the VOLUME control.
3. Place a tape in your Tape Deck and activate it.
4. Adjust VOLUME, TONE and BALANCE for best sound.
Stereo Headphone Operation
For private listening and for a unique stereo listening experience, plug
stereo headphones into the PHONES jack. This automatically disconnects
the speakers and sound is heard only from the headphones.