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Sanyo EP58B User Manual Page 27

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51 52
SANYO TV . VCR SANYO TV . VCR
LA72670M
10
µ
F
0.1
µ
F
4.7
µ
F
1.0k
Ω
A GND
Monitor IN(R)
10k
Ω
4.7
µ
F
Monitor
IN(L)
1
µ
F
1
µ
F
+
+
+
+
+
22
µ
F
+
10
µ
F
+
4.7
µ
F
+
0.01
µ
F
4.7
µ
F
0.01
µ
F
0.01
µ
F
0.01
µ
F
22
µ
F
100
µ
F
39k
Ω
470
Ω
4700P
2.7k
Ω
+
+
+
+
+
1 201918171615141312111098765432
60 414243444546474849505152535556575859
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1.0k
Ω
4.7
µ
F
+
1
µ
F
+
4.7
µ
F
+
1
µ
F
+
4.7
µ
F
+
22
µ
F
+
22
µ
F
+
4.7
µ
F
+
4.7
µ
F
+
0.1
µ
F
+
1
µ
F
4.5MHz BPF
1
µ
F
1
µ
F
+
MTS GND
EXT1 IN (R)
EXT2 IN (R)
EXT3 IN (R)
MUTE
AF SW
CLOCK
DATA
MODE OUT
EXT3 IN (L)
EXT2 IN (L)
EXT1 IN (L)
LINE OUT (L)
LINE OUT (R)
V
CC
(H) 9V
MTS V
CC
(9V)
Normal OUT
Normal IN
TO RF MOD
ALWAYS 5V
+
4.7
µ
F
4.7
µ
F
+
+
2.2
µ
F
2.2
µ
F
1
µ
F
+
1
µ
F
+
+
1
µ
F
1
µ
F
D GND
10
µ
F 0.01
µ
F
PRE GND
10
µ
F
4.7
µ
F
0.01
µ
F
4700P
22
µ
F
0.033
µ
F
+ + +
54
SIF IN
MTS
MONITOR
HiFi "Tracking D
(NORMAL:Low)
V
CC
(L) 5V
REC MUTE
LIM
AMP
A GND
PB AMP
PR AMP
REC AMP
REC-T
REC-H
A GND
fsc IN
3.58MHz
DO DET
VRFF
SIF
DEMOD
STEREO
FILTER
STERO
PII
L-R
DEMOD
SAP
FILTER
PILOT
CANCEL
PILOT
DET
PIPPLE
FILTER
FIITER
Adj.
dbx
DEC
ST/SAP
SW
SAP
DEMOD
SAP
DET
D.C
CONT
MATRIX
R-CH
IN SEL
ALCMUTE
OUT
SEL
L-CH
VREF
ENV
DET
COMP
NOISE
DET
R-CH
BPF
L-CH
BPF
Ø
COMP
LIM
DFV
VCO
LPF
MIX
SW
NOISE
LIM
LOGIC
HOLD
PULSE
R-CH
PNR
+
LA72680M
MONITOR IN (R)
+ + + + + +
EXT3 IN (L)
EXT2 IN (L)
EXT1 IN (L)
EXT2 IN (R)
EXT3 IN (R)
EXT1 IN (R)
Normal OUT
LINE OUT (L)
LINE OUT (R)
MONI TOR (L)
Normal IN
ALWAYS +B
TO RF MOD
+
22
µ
F
+
10
µ
F
+
4.7
µ
F 0.01
µ
F
+
+
+
10
µ
F
+
+
1
µ
F
4.7
µ
F
4.7
µ
F
1.0k
Ω
10k
Ω
0.47
µ
F
1
µ
F
V
CC
(H) 9V
MTS V
CC
(9V)
A GND
NC
NC
NC
NC
NC
MTS GND
1 2 3 7 8 9 10 11 12 13 14 15 16 17 18 19 20
60 59 58 57 56 55 54 53 52 50 48
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
37
38
39
40
64 5
+
+
4.7
µ
F
1
µ
F
+
1
µ
F
+
1
µ
F
4.7
µ
F 4.7
µ
F 4.7
µ
F2.2
µ
F
4.5MHz BPF
SIF DET IN
fsc IN
3.58MHz
2.2
µ
F
+
22
µ
F1
µ
F
+
10
µ
F
+
4.7
µ
F 0.01
µ
F 4700P
0.01
µ
F
0.1
µ
F
0.1
µ
F
1.0k
Ω
JUST IN
CLOCK OUT
0.1
µ
F
MUTE
AF SW
CLOCK
DATA
MODE OUT
MTS
MONITOR
HiFi Tracking DC
(NORMAL:Low)
V
CC
(L) 5V
REC MUTE
4.7
µ
F
0.01
µ
F
22
µ
F
470
Ω
4700P
2.7k
Ω
+
+
+
+
D GND
10
µ
F
10
µ
F
0.01
µ
F
PRE GND
39k
Ω
IIM
AMP
PB AMP
PB AMP
REC AMP
REC-H
REC-H
ALC DET
A GND
A GND
47 46 45 44 43 42 41
36
51 49
SUB
DEMOD
SUB
DEEM
FIITFR
Adj.
SIF
DEMOD
PLL
PIPPLE
FIITFR
COMP
SUB
DET
R-CH
IN SEL
ALCMUTE
OUT
SEL
+
L-CH
VREF
ENV
DET
COMP
NOISF
DET
R-CH
BPF
L-CH
BPF
DO DET
COMP
LIM
DEV
VCO
LPF
MIX
SW
NOISE
LIM
LOGIC
HOLD
PULSE
R-CH
PNR
AIC
CUE
BPF
AM
DEMOD
15kHz
LPF
15kHz
IPF
4.5fH
TRAP
SUB
BPF
JUST
CLK
CONTROL
MATRIX
MAIN
DEEM
OUT
SW
Block Diagram Block Diagram
Overview
Functions
Overview
Functions
The LA72670M is a system IC that adds SIF and US standard multi channel television sound(MTS)signal decoding functions to the
Hi-Hi audio signal-processing functions of earlier devices. All adjustments have been implemented in the IC chip by either automatic
adjustment, trimming, or some other technique, making this device is fully adjustment free.
Hi-Fi Signal Processing
HiFi Processing with Built-in Audio Multiplex
Decoder for US Market Products
Hi-Fi audio signal record and playback processing
Head amplifier for Hi-Fi Audio signal
SIF demodulation
US standards compliant audio multiplex decoder
Package: QFP80 (14 14)
The LA72680M is a system IC that adds SIF and Japanese standard multi channel television sound(MTS)signal decoding functions
to the Hi-Fi audio signal-processing functions of earlier devices. All adjustments have been implemented in the IC chip by either
automatic adjustment, trimming, or some other technique, making this device is fully adjustment free.
Hi-Fi audio signal record and playback processing
Head amplifier for Hi-Fi Audio signal
SIF demodulation
Japanese standards compliant audio multiplex decoder
Package: QFP80 (14 14)
Hi-Fi Signal Processing
HiFi Processing with Built-in Audio Multiplex
Decoder for Japanese Market Products
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