AirSpace SAM-4631 Manuale d'uso - Pagina 3
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Symptom
No LED display on
1. Battery weak.
the front panel.
2. Battery defect.
3. Power switch is not pressed.
Possible Cause
2
Remedy
1. Charge battery up to 8 hours.
2. Replace with the same type of
battery.
3. Press the power switch again.