Sharp Wizard OZ-770PC, Service Manual

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3. NOTE FOR SERVICING
1. Resetting the Organizer
A strong impact, exposure to an electrical field, or other unusual
conditions may render the unit inoperative, and pressing the keys will
have no effect. If this occurs, you will have to press the RESET switch
at the bottom of the unit using a pen or similar object to be able to
continue to use the unit.
A condition that makes the unit inoperative may erase some or all
of the data stored in memory.
Do not use anything breakable, anything with a sharp tip or any-
thing that might break to press the RESET switch.
In case that the Organizer does not work properly after reset, you can
remove the batteries and insert the batteries several seconds later.
Then press [
O |
] to open the Organizer.
1-1. All reset opeation
If the unit still fails to function after it has been reset using the proce-
dure above, you will have to reset it using a slightly more complicated
procedure:
1. While pressing and holding [
O |
], press and release the RESET
switch.
A message appears.
2. Release [
O
| ].
3. Press [ ESC ].
The built-in clock is reset.
Do not press [ ENTER ] in step 3. Doing so will delete all data in
the unit.
2. Battery Replacement
2-1. General guidelines
The Organizer uses the following type of battery:
Use Type Size/Model Qty
General operation Alkaline batteries LR6 (size "AA") 2
There are some extremely important points to remember
when installing new batteries:
Replace the two operating batteries at the same time with new batter-
ies of the same type.
Caution:
Keep batteries out of the reach of children.
Remove batteries from the unit when they become weak or when
the unit will not be used for a long period of time.Leaving weak
batteries in the unit may cause battery leakage and damage from
corrosion.
Do not dispose of batteries in fire as they may explode.
2-2. Replacing the operating batteries
The Organizer detects two low battery levels which are warning and
fail. When the battery is in warning level, an alert message appears
on the screen. In fatal level, the Organizer will turn off automatically
without indication.
If the alert message is shown, replace the batteries immediately.
1. Turn off the Organizer.
2. Set the battery replacement switch on the bottom of the Organizer
to REPLACE BATTERIES (a red dot will appear).
3. Slide off the operating batteries cover.
4. Remove the old batteries by pulling the ribbon tab.
5. Insert the two new batteries on top of the ribbon tab, taking care to
position them correctly according to the plus ( + ) and minus ( - )
terminals, as shown below.
6. Replace the cover.
7. Set the battery replacement switch to NORMAL OPERATION.
8. Turn on the Organizer and set the clock.
If nothing happens when you press [
O | ] :
Setting the battery replacement switch to REPLACE BATTERIES
shuts off power to the unit. Check that the battery replacement
switch is set to NORMAL OPERATION.
Repeat the above battery replacement procedure step by step.