Chronosette-273 (120-1581) Installation Faxback Doc. # 9501 CONNECTING TO AC POWER Plug the power cord into a standard AC outlet. The display flashes. INSTALLING A BACK-UP BATTERY To keep the clock running during an AC power failure, install a 9-volt battery. We recommend Radio Shack's Enercell battery (Cat. No. 23-583). A fresh battery can keep the clock running for up to 8 hours. Notes: Do not use an alkaline battery. This prevents the battery sentinel from working properly. To prevent unnecessary drain on the back-up battery, install the battery after you plug in the AC power cord. Replace the battery when the BATTERY SENTINEL indicator lights. If the display flashes after an AC power failure, the battery is too low to run the clock. Replace the battery and reset the clock. The display does not light when the Chronosette-273 is operating from battery back-up power. If the alarm time occurs during the time the Chronosette-273 is operating from battery back-up power, the alarm buzzer sounds or the radio plays for up to 10 minutes. (If the Chronosette-273 is set to play a cassette tape at the alarm time, the buzzer sounds instead.) Follow these steps to install the back-up battery. 1. Push the battery compartment cover's tab in the direction of the arrow, and remove the cover. 2. Install the battery. 3. Replace the cover. (LB/all-01/18/95)