LG CU405, Service Manual, Page: 11 / 176

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2.8 Battery Bar
2.9 BACKUP BATTERY : over 50 hours
(when normal POWER OFF/EMERGENCY OFF)
2.10 Sound Level
Ring Tone : Cingular Requested Specification
30Cm distance : under 75dBspl
2.5Cm distance : under 115dBspl
Contact : under 140dBspl (Reporting Maximum Value)
Key Tone (Only Numeric Keypad measured) :
1) Standby :
a) Speaker : under 140dBspl ( when contact state / Maximum Tone ), over 70dBspl ( when
30cm distance / Minimum Tone),
b) Headset : 60 ~ 98dBspl
2) Talk :
a) Speaker : 60 ~ 98dBspl
b) Headset : 60 ~ 98dBspl
2. PERFORMANCE
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Indication Standby
Bar3 Over 3.68 ± 0.05V
Bar 3
→
2 3.68 ± 0.05V
Bar 2
→
1 3.6 ± 0.05V
Bar 1
→
Empty 3.52 ± 0.05V
Low Voltage, Warning 3.42 ± 0.05V (Stand-by) / 3.52 ± 0.05V (Talk)
Blinking [Interval : 3min(Stand-by) / 1min(Talk)]
Power Off 3.28 ± 0.05V