Home
LG
Cell Phone
B2000
LG B2000 Service Manual
4
of 1
of 1 rating
135 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
3. TECHNICAL
BRIEF
- 36
-
Figure 3-19 B2000 HEADSET SPEAKER/MIC CIRCUIT (AD6537B)
Figure 3-20 B2000 MAIN SPEAKER/MIC CIRCUIT (AD6537B)
B
7
3
5
6
D
A
O
T
E
S
O
L
C
p
9
3
0
4
1
C
3
3
1
C
p
9
3
6
3
1
C
p
9
3
p
9
3
3
4
1
C
p
9
3
5
3
1
C
A
N
1
3
1
C
4
4
1
C
p
9
3
9
3
1
C
p
9
3
4
1
1
R
7
.
4
4
3
1
C
p
9
3
7
.
4
1
1
1
R
p
9
3
1
4
1
C
SGND1
SGND2
R8
2
1
R
_
C
N
2
1
R
DGND
M2
2
C
I
P
G
N15
LGND
6
1
K
N
3
T
U
O
A
6
1
J
P
3
T
U
O
A
N
1
N
I
A
6
1
R
P
1
N
I
A
6
1
P
5
1
R
N
2
N
I
A
5
1
P
P
2
N
I
A
3
1
R
L
3
N
I
A
R
3
N
I
A
4
1
R
5
1
K
N
1
T
U
O
A
P
1
T
U
O
A
5
1
J
9
T
1
N
2
T
U
O
A
9
R
2
N
2
T
U
O
A
1
1
R
1
P
2
T
U
O
A
1
1
T
2
P
2
T
U
O
A
E
N
O
T
G
N
I
R
P
_
K
P
S
_
T
E
S
D
A
E
H
N
_
K
P
S
_
T
E
S
D
A
E
H
P
_
C
I
M
N
_
C
I
M
P
_
C
I
M
_
T
E
S
D
A
E
H
N
_
C
I
M
_
T
E
S
D
A
E
H
N
_
C
E
R
P
_
C
E
R
B
7
3
5
6
D
A
O
T
E
S
O
L
C
p
9
3
0
4
1
C
3
3
1
C
p
9
3
6
3
1
C
p
9
3
p
9
3
3
4
1
C
p
9
3
5
3
1
C
A
N
1
3
1
C
4
4
1
C
p
9
3
9
3
1
C
p
9
3
4
1
1
R
7
.
4
4
3
1
C
p
9
3
7
.
4
1
1
1
R
p
9
3
1
4
1
C
SGND1
SGND2
R8
2
1
R
_
C
N
2
1
R
DGND
M2
2
C
I
P
G
N15
LGND
6
1
K
N
3
T
U
O
A
6
1
J
P
3
T
U
O
A
N
1
N
I
A
6
1
R
P
1
N
I
A
6
1
P
5
1
R
N
2
N
I
A
5
1
P
P
2
N
I
A
3
1
R
L
3
N
I
A
R
3
N
I
A
4
1
R
5
1
K
N
1
T
U
O
A
P
1
T
U
O
A
5
1
J
9
T
1
N
2
T
U
O
A
9
R
2
N
2
T
U
O
A
1
1
R
1
P
2
T
U
O
A
1
1
T
2
P
2
T
U
O
A
E
N
O
T
G
N
I
R
P
_
K
P
S
_
T
E
S
D
A
E
H
N
_
K
P
S
_
T
E
S
D
A
E
H
P
_
C
I
M
N
_
C
I
M
P
_
C
I
M
_
T
E
S
D
A
E
H
N
_
C
I
M
_
T
E
S
D
A
E
H
N
_
C
E
R
P
_
C
E
R
From Headset
Microphone
T
o Headset
Speaker
From Main
Microphone
To
M
a
i
n
Receiver
36
38
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
Other manuals for LG B2000
User Manual
138 pages
4
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the LG B2000 and is the answer not in the manual?
Ask a question
LG B2000 Specifications
General
Brand
LG
Model
B2000
Category
Cell Phone
Language
English
Related product manuals
LG B200E
170 pages
LG B2070
81 pages
LG B2100
81 pages
LG LG-B220
73 pages
LG B1200
72 pages
LG Banter
122 pages
LG LG-B470
91 pages
LG G4-Beat
198 pages
LG G3 Beat
50 pages
LG L Bello D331
230 pages
LG G3 Beat D722J
136 pages
LG Aurora Black 128GB
174 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
