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A
B
FROM/TO MICON/TUNER
8
SCL
SDA
AUDIO_MUTE
7
6
5
FROM/TO AV
REAR_AUDIO_R
REAR_AUDIO_L
FRONT_AUDIO_R
FRONT_AUDIO_L
AUDIO_OUT_R
AUDIO_OUT_L
SOUND_OUT_L
4
SOUND_OUT_R
P.CON+5V
FROM TV POWER
SOUND+B
GND
3
FROM CHROMA
AUDIO_DET
STEREO+5V
2
FROM DEFLECTION/CRT
+12V
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
G-9
C
D
SOUND AMP SCHEMATIC DIAGRAM
(MAIN PCB)
25
3.2
BUFFER
2.3
Q851
2SA1037AK
0
3.2
2.3
BUFFER
Q852
24
23
0
2SA1037AK
AGC
Matrix
De-Emph
Cancel
Offset
Cancel
Offset
1
2
1.5
W829
1K 1/4W
W825
S801X
S801Y
S803Y
R362
4.7K
CAUTION:
SINCE THESE PARTS MARKED BY
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D
E
F
REGULATOR 9V IC
IC853
KIA78L09BP-AT
IN
GND
3
2
11.7
0
26
NC
5
4.9
0
3.5
3.5
2.5
2.7
2.7
3.5
22
21
20
19
18
17
16
15
14
13
GND
DAC
ZAP
IIC Decoder
St.PLL
Det
VCA
Det
OUT SW
Pilot
Input
SAP
Cancel
Switch
L-R Filter
L-R Demod
Pilot
(L-R)/SAP
Filter
Filter
Filter
75us
L+R Filter
L+R Demod
Stereo
Noise
SAP
Filter
SAPout
Demod
fH.2fH Trap Filter
Filter
Filter
SAP
Wide Band
Spectral
Expand
Wide Band
RMS Det
Expand
RMS Det
Det
dbx De-Emph
Wide Band
Spectral
Spectral
Noise
Vcc
3
4
5
6
7
8
9
10
11
12
R858
2.4
2.4
0.7
5
2.4
2.4
0.7
2.2
2.2
12K
SOUND_R
SOUND_L
27
SOUND AMP IC
IC351
LA4600
RIPPLE
FILTER
OUTPUT GND
VCC
P.P
STAND-BY
C358_1
1
2
3
4
5
6
7
0.047
B
8.1
0
8.1
12.1
6.0
8.9
R360
R363
1K 1/4W
W805
W834
C350
S803X
16V
1000
MHE
2.9
MUTE SW.
0
Q351
MUTE SW.
0.6
0
2SC2412K
Q352
2SC2412K
0
0
C353
16V
1000
MHE
ARE
ATTENTION:
LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
E
F
G
OUT
1
9.1
R864
C881
1.8K
0.033 B
C879
C883
R859
0.022
0.47
4.7K
F
F
1
2
3
4
5
6
7
8
9
10
1.8K
VR3
VR5
TONE
136K
+
AMP1
I2C BUS
REF
-
INTERFACE
VR1
+
-
SIMAMP1
+
-
REF
VOLAMP1
6.5K
6.5K
6.5K
VOLAMP2
REF
+
-
-
CONTROL
SIMAMP2
+
6.5K
LOGIC
VR2
-
+
TONE
136K
AMP2
1.8K
VR4
VR6
20
19
18
17
16
15
14
13
12
11
C880
C882
0.022 F
0.47 F
R863
C884
C871
1.8K
0.033 B
R861
R866
50V
2.2
KA
1K
100K
ATT.
INPUT GND
8
9
10
0.9
1.4
0
1.4
R357
1.8K
28
AUDIO SIGNAL
ETANT
G
H
8
7
6
5
4
3
2
PCB010
TMX474
1
H
G-10
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