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A
B
8
R1053
3.9 3W
7
MUTE_SW
Q1008
4.0
R1047
KTC3875S_Y_RTK
R1018
0.1
10K
0
5.6K
C1041
6
25V
10
KA
FROM/TO POWER
P.CON+5V
SOUND+B
P.CON+9V
GND
W824
SOUND_GND
5
AT+5V
C1004_1
270P CH
FROM/TO MICON
A_MUTE
SCL
4
SDA
FROM/TO TUNER/STEREO
R1007
SW_A_OUT_L
3
1/4W
2.7K
R1008
SW_A_OUT_R
2.7K 1/4W
4.5
1.4
4.4
1
2
3
PF1
AGC
L IN
AGC
+
MODE
control
VCC
R IN
32
31
30
2
0.8
8.9
4.4
L1001
100uH 0305
1
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A
B
G-5
C
SOUND AMP SCHEMATIC DIAGRAM
IC1002 LA4915-E SOUND AMP
0
8.21
POWER GND
OUT1-
C1002
3.7
8.21
R1026
IN1
OUT1+
6.8K
50V
2.2
KA
C1003
3.2
8.9
IN-VREF
50V
2.2
KA
0
8.4
NC
PRE VCC
C1061
0
12.0
16V
1000
MHE
PRE GND
VCC
C1036
3.7
8.1
C1062
R1036
IN2
SW OUT
6.8K
50V
2.2
KA
50V
2.2
C1037_1
2.4
8.1
D1002
ON TIME
SW E
16V
22
KA
21DQ09N
8.1
0
8.9
Q1007
NC
DDL
SW B
2SD1802S/T
8.9
SW
C1049_1
7.9
0
11.0
D.C
SW GND
C1058
R1041
16V
47
KA
3.0
7.3
R1048
0.1 B
2.2 1/2W
AMP S.B.
OUT2+
5.6K
3.4
7.3
R1049
HP S.B.
OUT2-
C1059
R1042
10K
C1050
8.2
0
0.1 B
2.2 1/2W
HP D.C
POWER GND
16V
22
KA
4.1
3.1
C1063
R1037
C1054
HP IN2
HP OUT2
16V
10
12K
KANP
10V
220
YK
4.1
3.1
R1020
C1055
HP IN1
HP OUT1
12K
16V
10
KANP
10V
HS80
C1001_2
HS1001
763WSA0032
KA
10 25V
C1005_1
0
MUTE SW
R1019
270P CH
Q1006
DTA143EKA
1.5K
5.0
5.0
MUTE_SW
5.0
R1051
Q1001
KTC3875S_Y_RTK
0.1
10K
0
C1014
0.039
B
NC
NC
NC
NC
4.5
4.5
4.5
0
4.5
4.5
0
0
2.0
3.1
4.5
0
0
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
NC
PF2
PF3
PF4
GND
LT
LB
NC
NC
BD
VD
L ONT
Tone
+
Volume 2.2K
SURR
Balance
Control
Control
/MUTE
+
Vref
NC
NC
BB
RB
RT
BLD
TD
NC
NC
R OUT
SDA
SCL
29
28
27
26
25
24
23
22
21
20
19
18
17
0
4.5
0
NC
0
NC
4.5
4.5
4.5
2.0
2.0
NC
0
NC
4.5
4.9
4.9
D1001
1SS133
R1027
39K 1/4W
Q1005
KTA1504S_Y_RTK
4.5
R1014
100
CAUTION
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(AV PCB)
33
R1043
KA
2.2
1/2W
C1065
220
YK
30
W937
C1022
35V
22
NA
C1047
R1031
0
4.8
4.8
4.8
16V
22
KA
12K
4
3
2
1
-
+
+
-
5
6
7
8
6.2
6.2
6.2
12.4
C1043
R1030
12K
16V
22
KA
C1027
SW
35V
22
NA
4.8
0
:SINCE THESE PARTS MARKED BY
ARE
ATTENTION
:LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES
DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D
E
F
G
32
CP1001
31
AUDIO MUTE SW
Q1002
KTC3875S_Y_RTK
0
R1012
0.1
1K
0
0
0.1
0
AUDIO MUTE SW
Q1003
KTC3875S_Y_RTK
CAUTION: DIGITAL TRANSISTOR
AUDIO SIGNAL(PB)
ETANT
F
G
H
8
L1003
HF70T22*10*14
A2502WV2-4P
16 OHM
SP OUT R+
1
1
SP GND
2
2
SP GND
3
3
SP OUT L+
4
4
16 OHM
7
SP1001_1
S0407N04-A
6
FROM/TO IN/OUT
PHONE_OUT_L
PHONE_OUT_R
SP_MUTE
5
4
3
2
1
TUNER AUDIO SIGNAL
PCBD20
AUDIO SIGNAL
CMD002
H
G-6
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