A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC902
AN5829S
SOUND DECORDER IC
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
TUNER AUDIO SIGNAL
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
L902
100uH
0305
C936
3.3
50V
KA
C931
100
6.3V
KA
C932
0.33
50V
KA
C928
10
16V
KA
C926
4.7
50V
KA
C921
4.7
50V
KA
C925
4.7
50V
KA
R913
2.7M
R909
470
1/4W
R908
470
1/4W
R911
100
R912
100
R910
220K
C907
4.7
50V
KA
C935
0.1
B
C939
0.1
B
C937
0.1
B
C934
0.022
B
C929
0.1
B
C924
0.1
B
C933
0.047
B
C920
0.1
B
C922
0.1
B
C938
0.1
B
C930
150P
CH
C927
150P
CH
C923
0.1
B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
SCL
SDA
TU_AUDIO_L
TU_AUDIO_R
SIF
P.CON+5V
GND
STEREO SCHEMATIC DIAGRAM
(AV PCB)
FROM VIF/SIF/CHROMA
PCB250
TMB543
FROM REGULATOR
TO AV SW
FROM/TO MICON/TUNER
Filter
SAPout
75us
De-Emph
Switch
(L-R)/SAP
DAC
Expand
Wide Band
Cancel
Offset
Cancel
Offset
Matrix
AGC
OUT SW
NC 0
0
3.7
ZAP
fH.2fH Trap Filter
L-R Filter
L-R Demod
IIC Decoder
L+R Demod
L+R Filter
Filter
Wide Band
RMS Det
Wide Band
Demod
SAP
dbx De-Emph
Expand
Spectral
Vcc
Pilot
Cancel
St.PLL
Det
Pilot
VCA
Input
GND
Filter
Stereo
Det
SAP
Filter
Spectral
Filter
Noise
Filter
SAP
RMS Det
Spectral
Det
Noise
2.2
2.2
2.2
2.2
4.2
4.4
3.4
2.2
3.4
1.0
2.2
2.3
2.4
0.7
5.1
2.6
2.6
0.6
2.2
3.6
2.2
47
48
46
G-29
G-30
