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4 . TROUBLE SHOOTING
4.11 Receiver Trouble
TEST POINT
CIRCUIT DIAGRAM
0
0
2
N
C
1
2
6
4
1
N
I
8
2
N
I
1
C
N
5
7
2
C
N
2
1
O
N
0
1
2
O
N
1
+
V
2
R
M
4
8
6
4
S
A
L
N
2
0
2
U
1
M
O
C
3
2
M
O
C
9
D
N
G
T
A
B
V
8
9
2
C
A
N
A
N
9
9
2
C
0
2
2
C
u
0
1
P
_
K
P
S
N
_
K
P
S
N
_
C
E
R
L
E
S
_
K
P
S
P
_
C
E
R
p
9
3
0
4
1
C
p
9
3
3
4
1
C
4
4
1
C
p
9
3
9
3
1
C
p
9
3
4
1
1
R
7
.
4
7
.
4
1
1
1
R
p
9
3
1
4
1
C
SGND1
T8
SGND2
R8
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
AGND1
B16
AGND2
A11
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
N
_
C
E
R
P
_
C
E
R
Содержание B2050
Страница 7: ... 6 2 PERFORMANCE 2 PERFORMANCE 2 1 H W Features ...
Страница 8: ... 7 2 PERFORMANCE ...
Страница 9: ... 8 2 PERFORMANCE 2 2 Technical Specification ...
Страница 10: ... 9 2 PERFORMANCE ...
Страница 11: ... 10 2 PERFORMANCE ...
Страница 12: ... 11 2 PERFORMANCE ...
Страница 13: ... 12 2 PERFORMANCE ...
Страница 53: ... 52 4 2 TX Trouble TEST POINT 13Mhz OSCILLATOR Mobile SW FEM TRANCEIVER LDO PAM 4 TROUBLE SHOOTING ...
Страница 57: ... 56 3 Checking Ant SW Mobile SW 4 TROUBLE SHOOTING ...
Страница 67: ... 66 TEST POINT 4 6 LCD Trouble 4 TROUBLE SHOOTING ...
Страница 70: ... 69 4 TROUBLE SHOOTING TEST POINT 4 7 Speaker Trouble ...
Страница 77: ... 76 4 TROUBLE SHOOTING 4 10 KEY backlight Trouble TEST POINT ...
Страница 91: ... 90 5 DOWNLOAD AND CALIBRATION 6 Press Start and Pover on the phone using JIG remote Power on Switch 1 ...
Страница 92: ...5 DOWNLOAD AND CALIBRATION 91 5 2 Calibration ...
Страница 93: ... 92 5 DOWNLOAD AND CALIBRATION ...
Страница 97: ......
Страница 103: ... 102 Figure 8 1 B2050 BOTTOM SIDE PCB LAYOUT 8 PCB LAYOUT ...
Страница 104: ... 103 8 PCB LAYOUT Figure 8 1 B2050 TOP SIDE PCB LAYOUT ...
Страница 105: ......
Страница 113: ...10 STAND ALONE TEST 112 ...
Страница 117: ......
Страница 119: ......
Страница 132: ... 131 ...
Страница 133: ... 132 ...