Battery Replacement; Replacing The Back-Up Battery - Casio NX-4000 Service Manual & Parts Manual

BATTERY REPLACEMENT

1. Switch power off.
2. Slide the battery compartment cover in the direction indicated by the arrow.
3. Slide the battery switch in the direction indicated by the arrow in the illustration.
4. Remove the main battery holder.
5. Remove both old batteries and replace them with two new ones.
• Make sure that the positive (+) and negative (–) ends of the
batteries are facing correctly.
6. Replace the main battery holder, and slide the battery switch in the direction
indicated by the arrow in the illustration.
7. Replace the battery compartment cover.
8. Turn on power.
• The Home Time screen always appears whenever you turn power on for the first time after replacing
main batteries.
9. Check the Home Time setting and make changes if necessary.

REPLACING THE BACK-UP BATTERY

Before replacing the back-up battery, note the following precautions:
• Do not remove the back-up battery from the NX Unit while the main batteries are removed.
• Be sure to replace the back-up battery at least once 2 years. Otherwise, you run the risk of losing data
stored in memory.
1. Switch power OFF.
2. Slide the battery compartment cover in the direction indicated by the arrow.
3. Remove the screws that hold the back-up battery holder in place, and remove
the holder.
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