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2. AUDIO BLOCK DIAGRAM 3. Y/C BLOCK DIAGRAM
1) PB Mode 1) PB Mode
57 59 54 52 51 61 72 71
ACC MAIN 46
CONV C. COMB LPF Y
DELAY 45
IC301 C LPF
43
4 AUDIO IC301 41
AUDIO EQ SP 'B' PB 88
HEAD AMP LA71570M
NL Y/C
SP 'A' PB 91 YNR
DE EMP MIX
3 LINE PB FM FM
MUTE DEM
AMP AGC
LPF
SUB
V. ENV 93 LPF
DOUBLE
PB EQ
LIMIT MD 301
1 100 96 75 CLAMP 60dB AMP
MOD
10 11 18 17 21 20 23 24 28 29 6
AUDIO 5V
PB EQ
PB MAIN
PEAKING DE-EMPH JK 301
A. OUT COLOR V.H S/W VIDEO V. OUT
JACK ROTARY MIX BUFFER
CLOCK DATA C SYNC
Y/C OSD V. OUT
VIDEO VIDEO
2) REC Mode 2) REC Mode
71 72 61 51 52 54 57 59
76 ALC
A. IN
JACK
IC 301
LA71570 M COMB C. COMB 46
Y
IC301 BPF AMP
DELAY
BPF1 45
LINE AUDIO
AMP
CCD
43
LPF YNR
41
SP REC
A. OUT 96 MUTE (TO DRUM) 90 +
DETAIL Y-LPF
AUTO BIAS JK 301
AUDIO ENH
HEAD REC FM 38
REC
98 7 EQ
AMP S/W
NL EMPH FBC
32 V. IN
99 FM W/D
MOD CLIP AGC 31
10 11 18 19 23 24 28 29 30
PB/REC
REC 'H'
S/W
MAIN
5 EMPH
BIAS 2 COLOR V. II S/W CLOCK C. SYNC REC 'H'
OSC ROTARY DATA Y/C VIDEO
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