Hitachi LE40TF07A, Service Manual

Page: 24 / 41

R1 77
NC/100ohm
C182
330pF
VS A1
1
ST BYL
2
MUTEL
3
INA 1
4
INB1
5
GND
6
AVCC
7
INB2
8
INA 2
9
VREF
10
PROT
11
VS A2
12
O
U
TA
2
13
O
U
TA
2
14
V
D
A
2
15
V
D
A
2
16
N
C
17
H
B
A
2
18
H
B
B
2
19
N
C
20
V
D
B
2
21
V
D
B
2
22
O
U
TB
2
23
O
U
TB
2
24
VS B2
25
TE ST1
26
GAIN2
27
GAIN1
28
CL K
29
RREF
30
DVDD
31
VD
32
RL MT
33
ROS C
34
TE ST2
35
VS B1
36
O
U
TB
1
37
O
U
TB
1
38
V
D
B
1
39
V
D
B
1
40
N
C
41
H
B
B
1
42
H
B
A
1
43
N
C
44
V
D
A
1
45
V
D
A
1
46
O
U
TA
1
47
O
U
TA
1
48
R 2A15120FP
U10
R2 A15120FA
C176 10uF
C179 10uF
R180
10K ohm
R182
10K ohm
C177
330pF
C187 474 C186 474
C167 474 C168 474
C171
104
C170
104
C185 104 C184 104
L14
CH8 010U-220K -045-G
L13
CH8 010U-220K -045-G
C190
C241J334J2SC320
C188
C241J334J2SC320
MUTE
L12
CH8 010U-220K -045-G
L11
CH8 010U-220K -045-G
LOUT -
ROUT-
A
M
P_
+
18
V
A
M
P_
+
18
V
AMP_+18V
R179
22K ohm
C178
10uF
C181 10uF
R183
0ohm
R184
NC/0ohm
C175 104
R175
6K 8ohm
R1 85
47K ohm
M_+6.0V
AVCC
AVCC
R181 12K ohm
ROUT+/
L_OUT +/
+
E16
100uF-16V
C180 1uF
C174 1uF AMP-LO
AMP-R O
AMP_S TB
R188
8R2 ohm
C189
474
R173
8R2 ohm
C166
474
C172
NC/104
C169
C241J334J2SC320
C165
C241J334J2SC320
R1 76
1K 2ohm
+
E15
100uF-16V
R1 87
1K 2ohm
+
E17
100uF-16V
9
8
7
3 2
6 5 4
1
CN2 2
CK 3-3.5-WK 15
L_
O
U
T+
/
R
O
U
T+
/
1
2
3
4
CN2 3
4PIN
LOUT -
L_OUT +
ROUT-
ROUT+
AMP_+18V
C161
104
C162
104
+
E13
470uF-35V
T109 T110 T108
T113 T114 T115
T111
T112
Q21
LMBT3 906LT1G
D25
PML L4148L
R1 72
33K ohm
+
E14
100uF-16V
Q22
LMBT3 904LT1G
R1 68
1K ohm
AMP_MUTE
C164 1uF
R1 61
1K ohm
AMP_MUTE /
R162
100ohm
C163
NC/1uF
MUTE
R1 66
NC/0ohm
R1 69
0ohm
5VTV
M_+6.0V
R1 64
NC/10K ohm
M_+6.0V
R1 70
4K 7ohm
Q20
NC/LMBT 3904LT1G
R1 67
NC/10K ohm
AMP_MUTE
AMP_MUTE /
R1 63
NC/4K 7ohm
+3.3V
L16 390R
L17 390R
L18 390R
L19 390R
R1 74
4K 7ohm
5VTV
Circuit Diagram of LE40TF07A (08/09)
Audio Amp. & Headphone
SCHEMATIC DIAGRAMS
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