The Personal Series LCD Clock notifies the user when the batteries need to be changed by showing the “Low Battery” symbol on the clock display.
Use only high quality Alkaline batteries
Always use fresh, superior-quality batteries, with an expiration date at least five years past the installation date.
Batteries should be the same type and date code.
The use of heavy duty and zinc carbon batteries is not recommended, as they will not last as long as high-quality name-brand alkaline batteries.
Do Not Use Lithium or Rechargeable Cells.
Remove the clock from its location to access the back of the clock.
If the clock is mounted using the Clock Lock feature, a specific movement is required to remove the clock.
Remove the battery holder cover.
Remove the old batteries and wait 10 seconds.
Insert four alkaline C-cell batteries.
Replace the battery holder cover.
When the batteries are in place, the Personal Series Clock begins its initialization sequence.
All elements on the LCD display light up and the unit emits a single beep.
After four seconds, dashes appear on the display and remain until the unit’s receiver locates a channel signal. The receiver searches until a signal is found, scanning rapidly through 72MHz channels. The receiver looks for a time signal for 1 minute, and then switches to scanning in 30 minute intervals until receiving a signal.
Normal operation begins once a signal is received.