Hitachi LE40TF07A Service Manual page 24

SCHEMATIC DIAGRAMS
R1 66
5VTV D25
NC/0ohm
PML L 4148L
R1 69
M_+6.0V
0ohm
100uF-16V
R1 72
33K ohm
5VTV
C170
104
R1 74
4K 7ohm
C172
1
VS A1
R1 77 NC/104
AMP _S TB 2
ST BYL
NC/100ohm MUTE 3
MUTEL
AMP -LO R180 C174 1uF 4
INA 1
10K ohm C177 C176 10uF 5
INB1
330pF 6
GND
C178 AVCC 7
AVCC
10uF
C179 10uF 8
INB2
AMP -R O R182 C180 1uF 9
INA 2
10K ohm C182 C181 10uF 10
VREF
330pF R1 85 11
M_+6.0V PROT
47K ohm 12
VS A2
C184 104
AMP _MUTE
R1 61
1K ohm
AMP _MUTE /
L MBT3 906L T1 G 1K ohm
R1 68
Q22
1uF C164 L MBT3 904L T1 G
+
E1 4 Q21
CH8 010U-220K -045-G
C241J334J2SC320
C241J334J2SC320
CH8 010U-220K -045-G
474 C167 474 C168
C171
104
U10
R2 A15120FA
36
VS B1
35
TE ST2
34 R179
ROS C
33 R181
RL MT
32
VD
31
R 2A15120F P
DVDD
30
RREF
29
CL K
28 R183
GAIN1
27 R184
GAIN2
26
TE ST1
25
VS B2
104 C185
474 C186 474 C187
CH8 010U-220K -045-G
C241J334J2SC320
C241J334J2SC320
CH8 010U-220K -045-G
MUTE +3.3V M_+6.0V
R1 63 R1 64
R162
100ohm NC/4K 7ohm NC/10K ohm
R1 67
AMP _MUTE Q20
C163
NC/10K ohm NC/L MBT 3904L T1 G
NC/1uF
R1 70
4K 7ohm
L11 L _OUT +/
C165
R173
8R2 ohm
C166
474
L12 C169 L OUT -
R175
AVCC
6K 8ohm
22K ohm
12K ohm
C175 104
AMP _+18V
E1 6
100uF-16V
0ohm
NC/0ohm
L13 ROUT-
C188
C189
474
R188
8R2 ohm
L14 C190 ROUT+/
- 24 -
AMP _MUTE /
C161 C162 E13
+
104 104 470uF-35V
100uF-16V
E1 5
T1 08 T1 09 T1 10
R1 76
1K 2ohm
9
8
T1 11
T1 12
7
CN2 2
CK 3-3.5-WK 15
1K 2ohm
E1 7
R1 87
T1 13 T1 14 T1 15
100uF-16V
Circuit Diagram of LE40TF07A (08/09)
Audio Amp. & Headphone
AMP _+18V
CN2 3
ROUT+ L 16 390R 4
ROUT- L 17 390R 3
L OUT - L 18 390R 2
L _OUT + L 19 390R 1
4PIN