Nokia 2600 服务手册
ISSUE 1 09/2004
COMPANY CONFIDENTIAL
21
Copyright © 2004 Nokia. All Rights Reserved.
RH-59/60
7-System Module
Nokia Customer Care
Figure 6:Internal electrical microphone interface
■
Batteries
Type:BL-5C battery
Technology:Li-Ion. 4.23V charging. 3.1V cut-off
Capacity:BL-5C; 850 mA
Figure 7: BL-5C Battery
The BSI values:
Table 11: BSI of BL-5C
The battery includes an over-temperature and an over-voltage protection circuit.
Mode
BSI (kOhm)
Description
Min.
Type
Max
Normal
75 (BL-5C)
Used for calculating the Capacity (BL5-C =Low
bandmA)
bandmA)
Service
3.2
33/39
3.4
Pull-down resistor in battery. Used for fast power-
up in production (LOCAL mode), R/D purposes or
in after sales, 1% tolerance resistors shall be
used.
up in production (LOCAL mode), R/D purposes or
in after sales, 1% tolerance resistors shall be
used.
UEM
1k
1k
MIC+
MIC-
4.7uF
MIC1N
MIC1P
MICB1
220
2k2
2k2
1n
1n
MICBCAP
1u
1n
22k
2*33n
Placed near
UEM
Placed near
bottom
connector
2k2
2k2