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A
B
8
FROM MICON/TUNER
I2C_SDA
I2C_SCL
AUDIO_MUTE
FROM CHROMA
P.CON+9V
7
TU_AUDIO_OUT
2.3
2.3
2.3
6
24
23
22
21
AGC
OUT SW
Switch
Matrix
De-Emph
(L-R)/SAP
75us
Filter
Cancel
SAPout
Offset
Expand
Cancel
Wide Band
Offset
1
2
3
4
0
2.3
2.3
5
FROM/TO DEFLECTION/CRT
P.CON+5V
SOUND+B
S-GND
4
3
2
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A
B
G-9
C
SOUND SCHEMATIC DIAGRAM
TU_AUDIO_OUT
TP701
31
NC
2.3
0
5.0
5.0
0
3.7
3.6
2.6
3.7
SOUND_R
20
19
18
17
16
15
14
13
GND
DAC
ZAP
IIC Decoder
St.PLL
Det
VCA
Det
Pilot
Input
SAP
Cancel
L-R Filter
L-R Demod
Pilot
Filter
Filter
Filter
L+R Filter
L+R Demod
Stereo
Noise
SAP
Demod
fH.2fH Trap Filter
Filter
Filter
SAP
Wide Band
Spectral
RMS Det
Expand
RMS Det
Det
dbx De-Emph
Wide Band
Spectral
Spectral
Noise
Vcc
5
6
7
8
9
10
11
12
2.3
2.2
0.4
5.1
2.4
2.4
0.4
2.3
3.4
AUDIO_L
TP702
SOUND_L
C730
50V
4.7
KA
R354
8.2K
NOTE:
THE DC VOLTAGE AT EACH PART WAS MEASURED
CAUTION:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D
E
30
L704
22uH
R752
C775
1.8K
0.033 M
C770
C777
0.022
0.47
M
TF
1
2
3
4
1.8K
VR3
136K
REF
+
-
VR1
SIMAMP1
+
-
VOLAMP1
REF
6.5K
VOLAMP2
32
REF
+
R729
C748
-
SIMAMP2
6.5K
VR2
-
560
50V
2.2
KA
+
136K
1.8K
VR4
20
19
18
17
C771
C776
0.022 M
0.47 TF
R751
C778
1.8K
0.033 M
R744
1K
33
R731
C749
560
50V
2.2
KA
SOUND
IC351
AN5277
ATT.
ATT. CONT.
RIPPLE
FILTER
NC
INPUT GND
NC
MUTE OUTPUT GND
VCC
STAND-BY
1
2
3
4
5
6
7
8
9
10
11
0
0
20.5
0
0
0
12.4
1.1
0
24.6
17.1
NC
R357
10K
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
5
6
7
8
9
10
VR5
TONE
AMP1
I2C BUS
INTERFACE
+
-
6.5K
6.5K
-
CONTROL
+
LOGIC
TONE
AMP2
VR6
16
15
14
13
12
11
R756
100K
12
12.4
35
C355
SPEAKER
CP351 TID-X04P-Z1BK
35V
470
MHE
SP OUT L+
1
1
SP351
SP OUT L-
2
2
W809
SPEAKER
SA04A01DWA
SP OUT R-
3
3
SP OUT R+
4
4
34
AUDIO SIGNAL
ETANT
F
G
H
8
7
6
5
4
3
2
1
PCB010
TM9425
H
G-10
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