Sony CFD-577 - Manual (Page 27)

Setting Up
26
Tip
Replace the batteries
when the OPR/BATT
indicator dims or when
the player stops
operating. Replace all
the batteries with new
ones. Before you
replace the batteries, be
sure to take out the CD
from the player.
Hooking up the system (continued)
5 Using the player on batteries
Insert eight size D (R20) batteries (not supplied) into
the battery compartment.
To use the player on batteries, disconnect the AC
power cord from the player.