- 63 -
4 . TROUBLE SHOOTING
TEST POINT
CIRCUIT
2
0
1
8
F
C
P
T
0
0
1
Q
1
1
D
2
2
D
3
3
D
6
4
D
7
5
D
6
D
8
4
S
G
5
E
G
R
A
H
C
V
T
A
B
V
2
.
0
8
0
1
R
7
2
1
C
u
0
1
2
0
S
U
C
0
0
1
D
G
H
C
V
5
A
3
R
L
E
S
M
E
M
V
8
B
E
S
N
E
S
T
A
B
V
5
B
_
C
N
5
B
7
B
_
C
N
7
B
6
1
G
6
1
G
_
C
N
1
R
1
R
_
C
N
5
1
T
_
C
N
5
1
T
6
A
E
V
I
R
D
E
T
A
G
5
T
1
T
E
N
_
D
N
G
E
S
N
E
S
I
7
A
0
3
3
9
0
1
R
R108
Q100
D100
4.4 Charging Trouble
Summary of Contents for B2070
Page 68: ... 67 4 TROUBLE SHOOTING TEST POINT 4 6 LCD Trouble ...
Page 72: ... 71 4 TROUBLE SHOOTING TEST POINT 4 8 Speaker Trouble ...
Page 79: ... 78 4 TROUBLE SHOOTING 4 11 KEY backlight Trouble TEST POINT ...
Page 107: ... 106 8 PCB LAYOUT Figure 8 1 B2070 BOTTOM SIDE PCB LAYOUT ...
Page 108: ... 107 8 PCB LAYOUT Figure 8 1 B2070 TOP SIDE PCB LAYOUT ...
Page 109: ... 108 ...
Page 117: ...10 STAND ALONE TEST 116 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 121: ... 120 ...
Page 123: ... 122 ...