- 82 -
4 . TROUBLE SHOOTING
4.13 RTC Trouble
TEST POINT
CIRCUIT DIAGRAM
0
3
1
C
A
N
1
2
3
4
z
H
K
8
6
7
.
2
3
0
0
1
X
F
p
5
.
2
1
_
6
4
1
-
C
M
N
I
C
S
O
9
E
9
C
T
U
O
C
S
O
N
O
R
W
P
9
F
3
V
T
E
S
E
R
N
6
1
K
N
E
_
A
D
R
I
N
_
2
_
O
I
P
G
8
1
K
X
T
_
A
D
R
I
_
0
_
O
I
P
G
8
1
L
X
R
_
A
D
R
I
_
1
_
O
I
P
G
4
1
L
N
I
K
L
C
0
1
N
N
O
K
L
C
3
1
P
p
0
0
0
1
9
2
1
C
2
2
1
P
T
R110
10M
O
T
S
_
O
I
D
A
R
T
C
E
T
E
D
_
O
I
D
A
R
L
E
S
_
O
I
D
A
R
_
K
P
S
N
O
R
W
P
N
O
K
L
C
T
E
S
E
R
_
)
8
0
6
1
(
u
1
6
1
1
C
u
1
5
1
1
C
BAT100
u
1
4
1
1
C
u
2
.
2
7
1
1
C
u
1
2
1
1
C
p
7
2
u
1
9
4
1
C
8
1
1
C
K
0
1
4
0
1
R
u
1
3
1
1
C
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 ...