Sony CFD-E55 Operating Instructions (primary manual) - Page 27

Setting Up Tip When you operate the player on batteries, replace the back-up batteries when the time display dims or when you cannot operate the timer. Replace all the batteries with new ones. With normal use, the back-up batteries should last for about six months. To save the memory data, replace the batteries with the AC power cord connected. Note Before you replace the batteries, be sure to take out the CD from the player. 2 Connecting the AC power cord Insert one end of the supplied AC power cord to the AC IN socket located at the rear of the player, and the other end to the wall outlet. 3 Using the player on batteries Insert six size D (R20) batteries (not supplied) into the battery compartment. To use the player on batteries, disconnect the AC power cord from the player. Replacing batteries Replace the batteries when the OPR/BATT indicator dims or when the player stops operating. Replace all the batteries with new ones. Setting Up 27