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Reset Operation - Casio CSF-4450 Service Manual & Parts Manual

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3. Remove both old batteries and replace them with two new ones.
• Make sure that the positive (+) and negative (-) ends are facing correctly.
4. Replace the holder.
5. Turn on power.
• The Home Time screen always appears whenever you turn power on for the first time after replacing
batteries.
6. Check the Home Time setting and make changes if necessary.
Back-up Battery
Before replacing the back-up battery, note the following precautions:
• Do not remove the back-up battery from the CSF Unit while main batteries are removed.
• Be sure to replace the back-up battery at least once every five years. Otherwise, you run the risk of
losing data stored in memory.
1. Press OFF to switch power OFF.
2. Remove the screws that hold the back-up battery compartment cover in place, and remove the cover.
Back-up battery
compartment
cover
3. Insert a thin, pointed object into (A) and remove the old battery.
CR2032 lithium
battery

RESET OPERATION

1. Press ON to switch power ON.
2. Press the RESET button with a thin, pointed object.
RESET
button
Warning!
The next step deletes all data stored in the CSF Unit's memory. Make sure that you really want to delete
the data before you continue!
RESET
(A)
RESET
— 7 —

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This manual is also suitable for:

Csf-4650Csf-4950