- 49 -
4 . TROUBLE SHOOTING
(3) Checking FEM & Mobile SW
TEST POINT
CIRCUIT
Waveform
Figure 4-5
FEM Control GSM & DCS
Graph 4-3(a)
FEM Control PCS
Graph 4-3(b)
1
1
_
O
P
G
9
_
O
P
G
0
1
_
O
P
G
2
1
5
C
p
2
.
2
A
N
2
0
5
C
A
N
3
0
5
C
0
5
1
5
R
7
1
5
R
0
ANT
G1
G2
RF
SW500
KMS-507
H
n
0
1
7
1
5
C
A
N
0
0
5
C
2
0
5
P
T
2
1
5
R
0
1
0
5
P
T
7
1
5
1
X
R
_
S
C
P
2
X
R
_
S
C
P
6
1
C
V
7
4
1
2
C
V
3
C
V
6
1
11
T
N
A
X
T
_
S
C
P
_
S
C
D
5
1
3
1
X
R
_
S
C
D
2
X
R
_
S
C
D
4
9
1
1
D
N
G
3
1
2
D
N
G
2
1
3
D
N
G
4
D
N
G
9
1
1
X
R
_
M
S
G
2
X
R
_
M
S
G
2
X
T
_
M
S
G
0
0
5
L
F
8
5
1
-
A
H
C
7
P
S
M
L
9
3
5
C
p
0
7
2
p
0
7
2
7
3
5
C
p
0
7
2
0
5
5
L
H
n
8
.
1
5
3
5
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p
2
2
3
4
5
C
0
0
5
P
T
1
W
S
_
T
N
A
2
W
S
_
T
N
A
3
W
S
_
T
N
A
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 ...