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Note For Servicing - Sharp ZQ-4450M Service Manual

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6. Memory map |
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SYSTEM AREA: {
USER AREA |
(82KB).
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S2KByte
64KByte
128KByte
(82KB)
So
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ae
fee
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SYSTEM.
~ Ieee
(32KB) 1}
(32KB)
USER AREA
BAIG
(128KB)
10000H
(32KB)
1FFFF
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(32KB)
1FFFFH
3. NOTE FOR SERVICING
1. Current check
(VCC = 6.0V).
1. Press the OFF key.
2. Measure the current value. (After 1 sec.)
When OFF: 4 5A or less
3. Press the ON key.
4. Measure the current value.
When ON: 50mA or less
2. Note for Battery replacement
(1) Replacing batteries
|
Batteries used | in the Organizer:
ype
Wedel ys
Lithium battery
oR2032 | 2 | Unitoperation |
Lithium battery
CR2032
Memory backup
_ The standard built-in clock is powered by the operating batteries.
ZQ=4450M
(2) Precautions when replacing the batteries.
Before replacing the battery, be sure to press [OFF] to turn the
power off:
|
Do not replace the memory backup battery when the operating bat-
teries are depleted. When the operating batteries become weak and
you turn the power on, "[EZJ## " will be displayed and the following
display will appear temporarily:
Tenees
REPLACE THE
_ OPERATING BATTERIES!
lf the batteries become weaker {the alarm or the Key beep does not
sound), the power may go off during operation or the Organizer may —
fail to turn on.
|
The memory contents will still be retained by the memory backup
battery.
Replace the operating batteries to. avoid loss or alteration of data.
Before removing the batteries for replacement, record important infor-
mation on paper. .
1) Loosen screw.
2) Remove battery cover.
(Note) Screw is so constructed as not to be removed for preven-
tion against missing.
m@ Remove the battery.
Caution
label
3) Remove caution label.
- 4) Remove the battery. (MAIN side)

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