Circuit Diagrams and PWB Layouts
17
SK5.1L CA
7.
Mono Carrier: Audio Amplifier
6
7
8
9
10
A
B
C
D
E
F
G
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
CPU & DECODER
S
TANDBY
1
S
CL
2
S
DA
3
AV
3
/TUNING
4
S
CART ID
5
KEY
6
VOL
7
BAND
8
V
ss
C/P
9
MUTE
10
PAL/NT
S
C
11
V
ss
A
12
S
ECPLL
1
3
Vp2
14
DECDIG
15
PH2LF
16
PH1LF
17
GND
3
1
8
DECBG
19
AVL/EWD
20
VDRB
21
VDRA
22
IF1
2
3
IF2
24
IREF
25
V
S
C
26
TUNER AGC
27
AUDEEM/
S
IF1
2
8
DEC
S
DEM/
S
IF2
29
GND2
3
0
S
NDPLL/
S
IFAGC
3
1
AVL/REFO
3
2
H. OUT
33
FBI
S
O
3
4
AUDEXT/Q
SS
O
3
5
EHTO
3
6
PLL IF
3
7
IFVO/
S
VO
38
Vp1
3
9
CVB
S
INT
40
GND1
41
CVB
S
/Y IN
42
C IN
4
3
AUDOUT/AMOUT
44
BLANK
45
R / V IN
46
G / Y IN
47
B / U IN
4
8
BCL IN
49
BLANKING
50
R OUT
51
G OUT
52
B OUT
5
3
VddA
54
VpE
55
VddC
56
O
s
cGnd
57
XTAL IN
5
8
XTAL OUT
59
RE
S
ET
60
VddP
61
AV1
62
AV2
6
3
IRin
64
IC101
1
2
3
4
5
S
AW101
C1
3
0
220nF
C1
3
1
2200pF
C1
3
2
4n7
+
C1
33
1
u
F/50V
R1
38
1
8
K
C12
8
10nF
+
C129
10
u
F/16V
L104
10
u
H
+
8
V_VCC
C120
0.1U/6
3
V
+
C119
10
u
F/16V
C127
220nF
X101
12MHz
C147
33
pF
C14
8 33
pF
+
3
.
3
V_VCC
L105
10
u
H
+
C150
100
u
F
+
C145
100
u
F
C149
10nF
C146
0.1
u
F
L106
10
u
H
C1
3
5
0.1
u
F/6
3
V
R151
3
9K
C1
3
9
33
0pF
R1
3
9
2.7K
C1
3
6
8
2P
R149
10K
R14
8
10K
R144
100
R14
3
100
R142
100
GND
R141
10K
+
8
V_VCC
ZD104
8
V2
1
2
3
4
5
BL
R
G
B
C727
0.1
u
F
R414
3
9K
R425
27K
ZD10
8
8
V2
ZD107
8
V2
ZD106
8
V2
C726
0.1
u
F
C725
0.1
u
F
R724
33
K
+
C116
0.1
u
F
+
8
V_VCC
R729
1K2
R72
8
1K
GND
R127
100
R126
1
8
0
L10
3
8
.2
u
H
XT145
XT-4.5
Q107
C1
8
15
WP
1
n.
c
.
2
A2
3
V
ss
4
Vd
d
8
PT
C
7
S
CL
6
S
DA
5
IC102
24C0
8
R1
33
100
R1
3
4
100
C11
8
100nF
R1
3
0
3
.
3
K
R1
3
1
3
.
3
K
C117
100
u
F/16V
R1
3
2
3
.
3
K
R125
2K2
R147
3
90
C144
0.1
u
F/6
3
V
R1
3
5
47
R122
10K
1
2
3
M001
RD2
2K7
RD4
1
8
K
RD5
10K
RD1
10
1
2
3
4
5
KEYBOARD CIRCUIT
LED
KE
Y
5V
IR
LED
S
W00
3
VOL-
S
W002
PRO+
S
W004
VOL+
S
W001
PRO-
RD
3
100
RR1
10
CR1
10
u
F/10V
GND
BCL
BLANK
V / R in
Y / G in
U / B in
C IN
CVB
S
/Y IN
R727
100
ZD102
5V1
C10
8
100pF
C107
100pF
ZD10
3
8
V2
+
3
.
3
V_VCC
C140
4.7
u
F/16V
R140
100
CN102
R725
10K
+
8
V_VCC
TVAO
TV CVB
S
IN
X-RAY
AFC
H-o
u
t
TV ING
S
TANDBY
S
CL
S
DA
KEY
VOL(PWM)
MUTE
EW
VDRB
VDRA
IF
AGC
AV2
AV1
TV CVB
S
OUT
TV CVB
S
IN
C1
3
7
10
u
F/16V
Q106
C1
8
15
R121
10K
R120
2.2K
KEY
+5V_VCC
R145
22K
+5V_VCC
MENU
TD
A
9
3
7
3
FO
R
L
a
t
a
m
V / R IN
C152
+
8
V_VCC
Ro(FROM IC761)
Lo(FROM IC761)
C IN
L107
10
u
H
R1
38
A 100K
C1
38
1
8
0pF
T006
T007
T00
8
T010
T011
T125
T126
T124
T122
T121
T120
T119
T12
3
T11
8
T116
T117
T112
T11
3
T114
T115
T111
S
W601
CN601
CN602
R611
R612
BROWN
BLUE
L
N
AC IN
(TO CN604)
AC OUT
CN002
T109
T110
T127
T12
8
T129
T001
T002
T00
3
T004
T005
T009
+
C150
100
u
F
C149
10nF
L106
10
u
H
1 2
3
CN901
R1
3
6
3
.
3
K
R117 1K
IO1
A7
A7
I_17
88
0_017.ep
s
270
3
0
8