Sound Pressure Level; Charging - LG L704I Service Manual

2. PERFORMANCE

2.7 Sound Pressure Level

A
C
O
U
S
T
I
C
A
I
R
A
C
O
U
S
T
I
C
A
I
R

2.8 Charging

• Charging Method : CC & CV (Constant Current and Constant Voltage)
• Maximum Charging Voltage : 4.2 V
• Maximum Charging Current : 600 mA
• Normal Battery Capacity : 1000 mAh
• Charging Time : Max 160 min (except for trickle charging time)
• Full charging indication current (charging icon stop current) : 140 mA
• Cut-off voltage : 3.3 V
LGE Internal Use Only
NO Test Item
1
Sending Loudness Rating
(SLR)
Sending Frequency
2
Response (SFR)
3
Receiving Loudness Rating
(RLR)
Receiving Frequency
4
Response (RFR)
5
Side Tone Masking Rating
(STMR)
6
Echo Loss (EL)
7
Idle Noise-Sending (INS)
8
Idle Noise-Receiving (INR)
9
Sending Loudness Rating
(SLR)
10
Receiving Loudness Rating
(RLR)
11
Side Tone Masking Rating
(STMR)
12
Echo Loss (EL)
13
Idle Noise-Sending (INS)
14
Idle Noise-Receiving (INR)
NOM
MAX
MAX
NOM
MAX
MAX
M/S
NOM
MAX
NOM
MAX
NOM
MAX
NOM
MAX
NOM
MAX
NOM
MAX
NOM
MAX
Head
set
NOM
MAX
NOM
MAX
NOM
MAX
Copyright © 2007 LG Electronics. Inc. All right reserved.
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Specification
±
8 3dB
MASK IN
±
-4 3dB
±
-15 3dB
MASK IN
↑
17dB
↑
40dB
↓
-64dBm0p
↓
-47dBPA
↓
-36dBPA
±
8 3dB
±
-1 3dB
±
-12 3dB
↑
25dB
↑
40dB
↓
-55dBm0p
↓
-45dBPA
↓
-40dBPA
Only for training and service purposes