3-17
3-18
2. AUDIO BLOCK DIAGRAM
3. Y/C BLOCK DIAGRAM
1) PB Mode
2) REC Mode
1) PB Mode
2) REC Mode
IC301
AUDIO
4
3
100
1
96
75
EQ
AMP
LINE
AMP
A. OUT
JACK
AUDIO
HEAD
AUDIO
PB EQ
MUTE
5V
TRAP
CIRCUIT
ACC
C. COMB
LPF
Y
DELAY
MAIN
CONV
C LPF
PB EQ
LPF
MOD
V. OUT
MD 301
JK 301
YNR
NL
DE EMP
Y/C
MIX
60dB AMP
CLAMP
DOUBLE
LIMIT
PB
PEAKING
MAIN
DE-EMPH
V.H S/W
CLOCK DATA C SYNC
Y/C
VIDEO
OSD
VIDEO
VIDEO
MIX
V. OUT
BUFFER
PB FM
AGC
FM
DEM
SUB
LPF
SP 'B' PB
SP 'A' PB
V. ENV
COLOR
ROTARY
88
57
59
54
52
51
61
72
71
46
45
43
41
91
93
10
18
17
21
20
23
24
28
29
1
11
IC301
LA71570M
SP REC
IC 301
LA71570 M
COLOR
ROTARY
V. II S/W
CLOCK
DATA
C. SYNC
REC 'H'
Y/C VIDEO
(TO DRUM)
90
71
72
61
51
52
54
57
59
46
45
43
41
38
32
31
30
29
28
24
23
19
18
11
10
+
REC FM
EQ
FM
MOD
W/D
CLIP
MAIN
EMPH
AGC
FBC
NL EMPH
DETAIL
ENH
Y-LPF
YNR
BPF1
C. COMB
BPF
Y
DELAY
COMB
AMP
CCD
LPF
S/W
V. IN
JK 301
76
96
98
7
99
A. IN
JACK
ALC
MUTE
AUTO BIAS
A. OUT
LINE
AMP
REC
AMP
PB/REC
S/W
REC 'H'
IC301
AUDIO
AUDIO
HEAD
BIAS
OSC
5
2
