Sony SRS-PC41 - Manual (Page 3)

Connections
Right speaker (Rear) Left speaker (Rear)
Connect the left speaker to the source equipment.
When the system is connected to a monaural jack of a
radio, etc., the sound may only come through the left
speaker. In such a case, use the optional Sony plug
adaptor PC-236MS.
The sound will come through both speakers.
To connect to a stereo phone-type
headphones jack
Use the optional PC-234S plug adaptor or RK-G13S
connecting cord.
Connecting to a Discman, Walkman, etc.
Note
When two types of equipment are connected to the
system and are played at the same time, the .sound
from both of them will come out of the speakers.
When vou wish to play only one equipment, make
sure that the other equipment is turned off or its
volume is turned down.