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4 . TROUBLE SHOOTING
4.14 Indication LED Troublet
TEST POINT
CIRCUIT DIAGRAM
%
1
,
2
1
0
2
E
G
R
A
H
C
V
6
5
3
R
K
7
4
K
5
.
1
5
5
3
R
1
4
1
0
3
Q
0
1
1
T
9
X
M
I
2
56
3
T
A
B
V
u
1
.
0
4
2
3
C
u
1
.
0
5
2
3
C
5
8
5
5
C
S
2
1
0
4
Q
2
3
1
5
1
2
5
3
R
10K
R357
K
1
3
5
3
R
R358
10K
R350
750
6
0
3
D
L
R359
20
T
A
B
V
E
G
R
A
H
C
E
R
P
Q301
Q401
Summary of Contents for B2050
Page 7: ... 6 2 PERFORMANCE 2 PERFORMANCE 2 1 H W Features ...
Page 8: ... 7 2 PERFORMANCE ...
Page 9: ... 8 2 PERFORMANCE 2 2 Technical Specification ...
Page 10: ... 9 2 PERFORMANCE ...
Page 11: ... 10 2 PERFORMANCE ...
Page 12: ... 11 2 PERFORMANCE ...
Page 13: ... 12 2 PERFORMANCE ...
Page 57: ... 56 3 Checking Ant SW Mobile SW 4 TROUBLE SHOOTING ...
Page 67: ... 66 TEST POINT 4 6 LCD Trouble 4 TROUBLE SHOOTING ...
Page 70: ... 69 4 TROUBLE SHOOTING TEST POINT 4 7 Speaker Trouble ...
Page 77: ... 76 4 TROUBLE SHOOTING 4 10 KEY backlight Trouble TEST POINT ...
Page 92: ...5 DOWNLOAD AND CALIBRATION 91 5 2 Calibration ...
Page 93: ... 92 5 DOWNLOAD AND CALIBRATION ...
Page 97: ......
Page 103: ... 102 Figure 8 1 B2050 BOTTOM SIDE PCB LAYOUT 8 PCB LAYOUT ...
Page 104: ... 103 8 PCB LAYOUT Figure 8 1 B2050 TOP SIDE PCB LAYOUT ...
Page 105: ......
Page 113: ...10 STAND ALONE TEST 112 ...
Page 117: ......
Page 119: ......
Page 132: ... 131 ...
Page 133: ... 132 ...