12
11
SCHEMATIC DIAGRAM-4 (Hi-Fi AUDIO SECTION)
2.6
2.6
0.4
2.6
2.6
5.1
2.6
1.6
0
2.6
2.6
2.6
2.6
2.6
9.4
2.5
(1)
4.5
4.5
4.7
0.5
(1.1)
0
2.6
2.6
2.6
2.6
2.6
2.6
1.6
0
2.6
2.6
2.6
0
0
(2.7)
4.9
4.9
2.6
2.6
2.0
2.1
0.1
0.1
0
1.6
(1.2)
1.3
(1.2)
(4.1)
(4.1) (4.9)
(4.9)
0
(4.0)
(3.8)
(4.1)
(3.9)
(5.2)
(4.0)
(1.3)
(1.3)
0
(4.3)
(4.0)
0
(4.0)
(1.7)
(4.0) (4.0)
(1.7)
(4.0)
(4.0)
(4.0)
(4.0)
(3.8)
(4.0)
(4.0) 9.3
0.5
0(4)
0.6
0
0.6
0(4)
0(4)
2.7(2.5)
0(-)
5.1
3.4(3)
0
1(1.8)
2(1.8)
0(0.8)
0(5)
INPUT SW
3J
4J
5J
6J
7J
8J
2J
1J
9H
8H
7H
1J
8J
C841
0.01
R838
15
C842
0.01
C840 0.01
C839 0.01
R837
100
IC802
AN3328S
L805
100u
C870
47/16
C869
0.01
C858
1/50
C859
4.7/50
C867
1/50
C861
2700P
R845
3.3K
R846
3K
C862
0.047
C863
3.3/50
C864
1/50
C865
10/16
R847
3.9K
C866
10/16
IC803
CXA2104S
dBx TV NR
R840
100
R841
100
C851
1/50
R842
1M
C852
5600P
C853
0.012
R843
100K
VR801
100KB
VR801
STEREO
SEPARATION
ADJ.
C854
0.47/50
C855
4.7/50
C856
10/16
R844
62K
(1%)
C857
4.7/50
R
L
1
2
3
C802
10/16
C846
0.47/50
D801
1SS133
IC801
AN3664NFB
Hi-Fi AUDIO
PROCESS
R803
39K
R807
39K
R802
12K
R806
15K
C803
1/50
C805
1/50
C804
1/50
R809
510
R808
4.7K
C806
0.047
R804
39K
R805
15K
C807
33/16
C808
2.2/50
C809
100/16
C810
0.015
4
5
6
7
8
9
10
11
12
C811
0.01
C838
270P
C824
180P
C844
3.3/50
L803
270u
R836
1K
R801
10K
Hi-Fi RF
TP
C813
0.01
C812
0.01
R833
100
R834
100
R832
1K
C815
0.1
36
35
EVOL
/AGC
R
L+R
L
DET
RF C
MUTE
MUTE
R
L
R
SW19
SW17
L
L
R
SW16
SW18
BS1
BS2
HI-FI
MIX
NORMAL
BS1
BS2
HI-FI
MIX
NORMAL
PB TRAP LPF
CCA
BUF.
DET LPF
PEAK DET
S/M
SW9
SW
NOISE
AUDIO LIM
PC
PB LPF
DAC(NTSC/PAL)
VCO
REC LPF
HPF
NOISE DET
Rch BPF
FM LIM
Lch BPF
HOLD
TIMING
LINER SW
LOGIC
PB
REC
MIX
REC LPF
VCO
DAC(NTSC/PAL)
SW
NOISE
S/M
SW4
AUDIO LIMIT
CCA
PB TRAP LPF
SW1
SW2
EVOL
/AGC
INPUT
SW
VREF1
AMP
AMP
Log
Log
1/2VCC(5V)
DET LPF
PEAK DET
PB LPF
PC
Nor-Fech
Vcc
SW22
SW6
SW7
34
33
32
31
30
29
28
27
26
25
C816
0.01
C817
0.015
C818
100/16
C819
2.2/50
C820
33/16
R814
39K
R815
15K
C826
1/50
C825
1/50
C827
1/50
R821
12K
R817
15K
C822
47/16
C823
0.01
L801
100u
C845
47/16
C843
0.01
L804
100u
R816
39K
R820
39K
C828
10/16
C837
1200P
R822
8.2K
R823
27K
C830
0.01
C831
47/16
C832
22/16
R810
2.2M
C833
10/16
R828
1.5K
R830
1.5K
R827
10K
Q802
KTC3199
R826
10K
Q801
KTC3199
R825
10K
Q803
KTC3199
R831
180
R829
180
C835
10/16
C834
10/16
C821
0.047
R812
510
R813 4.7K
13
14
15
16
To
SYSCON/
SERVO
SECTION
A.ENV
REC "H"
A.H/SW
IIC DATA
IIC CLOCK
AUDIO-L(L2)
A.MUTE"H"
5.1VD
AUDIO-R(L1)
N.AUDIO
N.AUDIO
AUDIO(R)
AUDIO(L)
AUDIO-L(L1)
MOD AUDIO
To
TUNER/IF
SECTION
To
POWER
SECTION
To
A/V
SECTION
GND
:PB AUDIO SIGNAL
:REC AUDIO SIGNAL
AUDIO(TU)
17
18
19
20
21
22
23
24
16
9
10 VCC
PB ON
DET
AGC
GND
GND
11
12
13
14
15
1
1
MATRIX
RMSDET
RMSDET
I C BUS I/F
LPF
LPF
DEEM.
DEEM.
STIND
VCA
LPF
LPF
BPF
SAP
VCO
NOISE
DET
AMP
(+4db)
LFLT
LOGIC
2
4
3
5
6
7
8
9
10
11
12
13
14
VGR
GND
15
30
29
27
28
26
25
24
23
22
21
20
19
18
17
16
VCC
H/SW
8
7
6
5
4
3
2
48
47
46
45
44
43
42
41
40
39
38
37
2A
5.1VA
1A
1H
2H
3H
4H
6H
1H
5H
6H
1E
1E
2E
2E
4A
4A
1A
AUDIO-R(L2)
Hi-Fi PB(B)
Hi-Fi PB(A)
Hi-Fi REC
REG9V
3A
A MAIN (Hi-Fi AUDIO SECTION) C.B
*
O N E V O L T A G E : P B O R R E C M O D E
T W O V O L T A G E S : P B A N D ( R E C ) M O D E
0
0
0
0
0
0
H
L
2
1/4
1/2
SW
LPF
VCA
VE
LPF
FLT
LPF
VCA
HPF
LPF
STLPF
SAPIND
,
To
A/V
SECTION
9H
7H
R
(L2)
R
(L1)
R
(TU)
L
(TU)
L
(L1)
L
(L2)
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