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5.5.2 Power transition
This machine is operated by rechargeable lithium battery (main battery) and coin shaped lithium
battery (backup battery). When the main battery power gets low, battery replacement warning is
displayed. When the main battery becomes more weak that it cannot operate the machine, system
turns the power off automatically. Main RAM and RAM disk memory remains due to the backup
battery. The relation between main battery power and the machine is shown as below.
The relation between main battery power and the machine.
Battery power
LB1
LB0
Able to operate
5.5.3 Low battery power monitoring
Monitor the main battery and backup battery. See below for detail.
Name
LB1
Low main battery power (warning)
LB0
Low main battery power (unable to opelate)
LB2
Low backup battery power (warning)
LB-1
Low backup power (unable to backup)
5.5.4 About power supply
The machine's power is supplied only from batteries.
When operating the machine while recharging, the machine does not operate from the AC directly
but from the power supplied from the battery that is being recharged.
Warning is displayed
Able to turn on power
Turns off antomatically
Unable to operate
Meaning
— 25 —
Starts recharging
Able to operate
Detect Voltage Device
6.0 V
IC20
5.5 V
IC21
2.5 V
IC3
2.7 V
IC13
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