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