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Model: 404-1236 www.lacrossetechnology.com/support Page | 1
Model: 404-1236
Instruction Manual
13.5” Atomic Wall Clock
Get Started
Step 1: Slide the switch to select a time zone.
Step 2: Insert 1 fresh AA, LR6 1.5 volt ALKALINE battery according to the
polarity marked on the case.
Step 3: Position the clock on an exterior wall that faces Ft. Collins Colorado.
During the night, your clock will automatically set itself.
Note: The hands will move to the 12:00 position and search for the radio signal.
If the radio signal is not received in the first 10 minutes, the clock will start
running from the 12:00 position and will continue to run. Do not attempt to
reset the hands manually even though the time on the clock is incorrect. The
clock is synchronizing to the WWVB signal and once the radio signal is decoded,
the hands will automatically adjust to the correct time. This may take up to 5
nights.
Position Clock
• Choose a location 6 feet or more from electronics such as cordless phones,
wireless gaming systems, televisions, microwaves, routers, baby monitors,
etc., which can prevent signal reception.
• Position near an exterior wall that faces Ft. Collins Colorado for WWVB time
signal reception.
• The antenna is available for signal reception when the front or back of the
clock faces Colorado.
Reset:
If the clock does not respond to the various function modes, reset the clock by
pressing the RESET button on the movement case.
Note: We recommend that you change the battery every 24 months to maintain
accuracy. Remove the battery when the clock will not be in use for an extended
period.