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LG B2000 Service Manual
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- 97
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6. BLOCK DIAGRAM
6. BLOCK DIAGRAM - RF
BEE Project RF Block Diagram
ANT
S/W
T
ranceiver
(SI4205)
13MHz
LDO
B
A
S
E
B
A
N
D
PA
M
(RF3166)
FEM
(Murata)
VBA
T
DCS,PCS_OUT
DCS,PCS_IN
GSM_OUT
GSM_IN
GSM_IN
TX_RAMP
PA
_
E
N
P
A_BAND
13MHz
RXI
RXO
TXI
TXQ
RF_PD
S_EN
S_CLK
S_DA
T
AFC
2V8_VRT
ANT_SW1
ANT_SW2
VSYNTHEN
2V75_VTCXO
DCS_IN
PCS_IN
97
99
Table of Contents
Default Chapter
2
Table of Contents
2
Introduction
3
Purpose
3
Regulatory Information
3
Abbreviations
5
Performance
7
H/W Feature
7
Technical Specification
9
Technical Brief
14
Transceiver
14
Power Amplifier Module
20
13 Mhz Clock
21
Power Supplies of RF Circuits
21
Digital Main Processor
23
Analog Main & Power Management Processor
29
Power Management
34
Display and Interface
39
Radio Interface
41
Keypad Switches and Scanning
42
Microphone
43
Main Speaker
43
Headset Interface
44
Key Back-Light Illumination
45
Vibrator
46
Trouble Shooting
47
RX Trouble
47
TX Trouble
54
Power on Trouble
62
Charging Trouble
64
Vibrator Trouble
66
LCD Trouble
68
Radio Trouble
70
Speaker Trouble
72
Circuit Diagram
73
SIM Card Interface Trouble
75
Earphone Trouble
77
Key Backlight Trouble
79
Receiver Trouble
81
Microphone Trouble
83
RTC Trouble
85
Indication LED Trouble
87
Download and Calibration
89
Download
89
Calibration
94
Block Diagram
97
Circuit Diagram
100
Pcb Layout
105
Engineering Mode
108
BB Test [MENU 1]
109
RF Test [MENU 2]
110
Sar Test
110
MF Mode [MENU 3]
111
All Auto Test
111
Key Pad
111
Trace Option [MENU 4]
112
Call Timer [MENU 5]
112
Fact. Reset [MENU 6]
112
S/W Version [MENU 7]
112
Stand Alone Test
113
Introduction
113
Setting Method
113
Means of Test
114
Auto Calibration
116
Overview
116
Requirements
116
Menu and Settings
116
Agc
118
Apc
118
Adc
118
Setting
118
How to Do Calibration
118
Exploded View & Replacement Part List
120
Exploded View
120
Replacement Parts <Mechanic Component
122
Main Component
123
Accessory
135
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LG B2000 Specifications
General
Brand
LG
Model
B2000
Category
Cell Phone
Language
English
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