Panasonic Omnivision PV-9661 Service Manual page 379

IC4201 Hi-Fi AUDIO MTS/SAP PROCESS IC-DETAIL BLOCK DIAGRAM, AN3662FBP
48 47 46 45 44
MUTE
DEMODULATOR
CTL
49 PILOT
DETECTOR
50
ST PLL
VCA
STEREO
FILTER
+5V
51
L-R
DEMODULATOR
SAP
52 DEMODULATOR
75us
LPF
DE-EMPHASIS
R CH
53
54
MUTE
R
(L-R) / SAP
L
55 GND
SWITCH
R
MTS MODE +
56
MUTE
L
L CH
57
L
R
+12V
58
59
RF AGC
RF AGC
60
DETECTOR SAP
L
MIX
61
R
62
MATRIX
63
dBX
NOISE
REDUCTION
64
1 2 3 4 5
43 42 41 40 39 38 37
GND +5V GND
I2C BUS
NOISE REDUCTION
REC
/COMPRESSOR
/EXPANDER
PB
PB
REC
LIMITER
PC
BS
Hi-Fi
BPF
MIX
FM
NORMAL
LIMITER
BPF
NORMAL
MIX
PC
Hi-Fi
BS
LIMITER
TUNER
REC
LINE 1
L-CH
PB
LINE 2
LINE 3
REC
TUNER
R-CH
PB
LINE 1
LINE 2
LINE 3
V-REF GND
6 7 8 9 10 11 12
REC AUDIO SIGNAL PB AUDIO SIGNAL
36 35 34 33
A-MUTE(H)
32
31
SWITCHING NOISE
COMPENSATOR
30
PB LPF
29
VCO
28
HPF
REC LPF
27
NOISE
DETECTOR
26
SW
MIX
+5V 25
HOLD
24
REC LPF
TIMING
VCO
GND
23
PB LPF
22
21
SWITCHING NOISE
20
COMPENSATOR
19
NOISE REDUCTION
18
/COMPRESSOR
/EXPANDER
17
13 14 15 16