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
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
L902
100uH
0305
C936
3.3
50V
YK
C932
0.33
50V
KA
C928
10
50V
YK
C925
4.7
50V
KA
C926
4.7
50V
KA
C921
4.7
50V
KA
C931
100
10V
YK
C930
150P
CH
C927
150P
CH
C935
0.1
B
C939
0.1
B
C923
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
R910
220K
R909
470
1/4W
R908
470
1/4W
R913
2.7M
R912
100
1/4W
R911
100
1/4W
C907
4.7
50V
KA
TP901
TU.AU-L
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.
NOTE:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
SCL
SDA
TUNER_A_L
TUNER_A_R
TU_AUDIO
P.CON+A5V
GND
PCB250
(AV PCB)
STEREO SCHEMATIC DIAGRAM
NC
2.3
Filter
SAPout
75us
De-Emph
Switch
(L-R)/SAP
DAC
Expand
Wide Band
Cancel
Offset
Cancel
Offset
Matrix
AGC
OUT SW
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
FROM/TO POWER
FROM/TO VIF/SIF/CHROMA
2.2
2.2
2.2
2.2
4.2
4.4
3.4
2.2
3.4
1.0
2.2
2.2
2.3
2.4
0.7
5.1
2.6
2.6
0.6
2.2
3.6
NC
FROM/TO MICON/TUNER
FROM/TO AV SW
47
48
46
TMA503