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Circuit Diagrams and PWB Layouts
Mono Carrier: Audio Amplifier
1
2
CPU & DECODER
A7
A
+5V_V CC
B
C118
ZD102
C117
100nF
100uF/16V
5V1
IC102
ST ANDBY
SC L
SDA
C
V OL(PWM)
R122
+3.3V_VCC
KEY
10K
IO1
C152
MUTE
D
+8V_VCC
C120
0.1U/63V
EW
VDRB
VDRA
IF
E
1
2
V / R IN
C IN
AGC
TV AO
Lo(FROM IC761)
Ro(FROM IC761)
+8V_V CC
F
G
1
2
SK5.1L CA
7.
3
4
R136 3.3K
R117 1K
R145
R130
R131
R132
3.3K
22K
3.3K
3.3K
C108
24C08
C107
100pF
100pF
T109
IC101
1
ST ANDBY
R133
100
2
SCL
R134
100
3
SDA
4
AV3/TUNING
5
SCART ID
L107
R135
6
KEY
10uH
47
7
VOL
ZD103
8
BAND
8V2
9
Vss C/P
10
MUTE
T116
11
PAL/NTSC
T117
C129
12
VssA
10uF /16V
C127
220nF
13
SECPLL
L104
14
Vp2
10uH
C128
10nF
C130
220nF
15
DECDIG
C132
C131
4n7
2200pF
16
PH2LF
C133
17
PH1LF
1uF/50V
R138 18K
C119
18
GND3
10uF /16V
R138A 100K
19
DECBG
20
AVL/EWD
21
VDRB
AUDOUT/AM OUT
22
VDRA
4
23
IF1
5
24
IF2
R151
25
SA W101
IREF
39K
C135
26
VSC
0.1uF/63V
27
TUNER AGC
28
AUDEEM/SIF1
29
DECSDEM/SIF2
30
GND2
AUDEXT/QSSO
C136
R139
C137
82P
C138 180pF
31
SNDPLL/SIFAGC
10uF /16V
2.7K
32
AVL/REFO
C139
330pF
C140
4.7uF/16V
3
4
17
5
6
7
KEYBOARD CIRCUIT
AC OUT
(TO CN604)
CN602
SW601
L
N
BR OWN BLUE
R611
CN601
R120
2.2K
AC IN
R121
T110
Q106
C1815
10K
T111
R149
R148
10K
10K
R140
T125
T126
64
IRin
100
63
AV2
62
AV1
61
VddP
+3.3V_VCC
L105
60
RESET
C145
C146
10uH
+
L106
L106
59
C147 33pF
XT AL OUT
100uF
0.1uF
10uH
10uH
X101
58
12MHz
XT AL IN
C148 33pF
57
OscGnd
C150
C149
C150
C149
+
+
56
VddC
100uF
10nF
100uF
55
VpE
T124
54
VddA
R144
100
53
B OUT
R143
100
52
G OUT
R142
51
100
R OUT
50
R141
10K
BLANKING
49
BCL IN
C727
0.1uF
48
B / U IN
47
C726
0.1uF
G / Y IN
46
C725
0.1uF
R / V IN
45
BLANK
44
43
C IN
42
CVBS/Y IN
41
GND1
C116
T118
40
CVBSINT
0.1uF
39
Vp1
R125
38
IFVO/SV O
R147
2K2
37
C144
PLL IF
0.1uF/63V
390
36
EHTO
35
34
FBISO
33
H. OUT
5
6
7
8
9
RD5
RD4
RD3
RD2
18K
100
2K7
10K
T001
T002
T003
T004
T008
MENU
LED
RR 1
T007
VOL-
VOL+
PR O+
PR O-
SW004
SW003
SW002
SW001
10
T006
R612
T005
CN002
T114
T112
T115
+8V_VCC
10nF
R725
R425
GND
R724
R414
8V2
8V2
10K
27K
8V2
8V2
1
33K
39K
ZD107
ZD108
T123
ZD104
ZD106
2
T122
B
3
T121
G
4
T120
R
5
T119
BL
CN102
+8V_VCC
Q107
C1815
L103
T127
TV CVBS OUT
8.2uH
R127
XT145
XT -4.5
100
T129
R126
T128
180
GND
8
9
10
A7
A
M001
RD1
3
2
1
10
T009
CR1
10uF /10V
T010
T011
B
+5V_V CC
T113
KEY
AV2
AV1
C
1 2 3
CN901
D
BCL
U / B in
Y / G in
V / R in
BLANK
C IN
CVBS/Y IN
E
TV C VBS IN
+8V_VCC
X-RAY
AFC
H-out
F
TV ING
R727
100
R728
TV C VBS IN
1K
R729
1K2
G
I_17880_017.eps
270308
10
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