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Troubleshooting
Common
problems
Fault cause
Handling methods
1
Turning on
without LCD
lighting up
1. Wire between main
control panel and
keyboard control panel
connected improperly or
damaged
2. LCD disconnected or
damaged
3. Keyboard control panel
damaged
4. Main control panel
damaged
5. Power supply not
energized
1. Reconnect or replace the
wire between main control
panel and keyboard panel
2. Reconnect LCD or replace it
3. Replace keyboard control
panel
4. Replace main control panel
5. Replace power supply
2
Turning on
failure with
Li-polymer
battery
1. Li-polymer battery is
damaged or low
2. Main control panel
damaged
3. Wire between main
control panel and
keyboard control panel
disconnected or damaged
1. Replace the Li-polymer
battery or recharge the
battery
2. Replace main control panel
3. Reconnect or replace the
wire between main control
panel and keyboard control
panel
3
Turning on
failure with
AA alkaline
batteries
1. The battery is low
2. The battery cable
damaged or connected
improperly
3. Main control panel
damaged
4. Wire between main
control panel and
keyboard control panel
disconnected or damaged
1. Replace the battery
2. Replace the battery cable
or connect it properly
3. Replace main control panel
4. Reconnect or replace the
wire between main control
panel and keyboard control
panel
18
Содержание LP 5125M
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