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BLOCK DIAGRAM-4 (VIDEO SECTION)
• PB MODE
V.H/SW30
To/From
SYSCON/SERVO
SECTION
V.ENV
SP PB CH2
SP PB CH1
From
CYL.HEADS
EP PB CH2
EP PB CH1
• REC MODE
To/From
V. OUT
SYSCON/SERVO
SECTION
D-V SYNC
From
TUNER/IF
VIDEO IN
SECTION
JK301
VIDEO
IN
:REC Y SIGNAL
:REC CHROMA SIGNAL
:REC VIDEO SIGNAL
From
SYSCON/SERVO
SECTION
X301
3.579MHz
73
71
79
78
63
81
X-tal
Serial Cont
84
VCO/OSC
interface
REC-AMP
86
SP CH2
CH2
CH1
REC-AMP
89
SP CH1
SP
CTL Trap
ACC
C LPF
2M LPF
fh Trap
HIFI Trap
EP
REC-AMP
91
EP CH2
CH2
TRAP
FM AGC P.EQ
G.EQ
CH1
REC-AMP
94
EP CH1
IC301
HA118717NF
AUDIO/VIDEO
PROCESSOR
22
:PB Y SIGNAL
:PB CHROMA SIGNAL
:PB VIDEO SIGNAL
35
IC301
HA118717NF
46
C-CCD
AUDIO/VIDEO
CLOCK Drive
44
PROCESSOR
39
APC/ACC
DET
Y-CCD
42
ACC
SPF
6dB
52
AMP
SQUEL CH
51
D.E.
CLEAR
SYNC
FBC
ATT
Video ALC
31
-10dB
Y-LPF
VIDEO
ATT
30
AGC
-10dB
AGC DET
ATT
28
-10dB
LPF
CLAMP
CLAMP
29
21
26
24
23
18
+
13
60
58
62
69
APC/ACC
Main
VCA
CCD LPF
Conv2
DEALY
L- DET
BPF
BD
Main
Conv1
DEMO
Main
NL
D LIM
Y LPF
CLAMP
S LPF
De-Empf
De-eMPH
CLAMP
LPF
LPF
13
14
18
19
23
24
From
SYSCON/SERVO
SECTION
3.579MHz
60
58
69
62
63
71
Serial Cont
interface
VCO/OSC
VCA
L-DET
(-4dB)
Main
CCD
C-LPF
Conv2
LPF
B.E
MIX
C.K
ATT
Main
C-LPF
Conv2
FBC
Main
FM
NL Emph
LPF
HPF
ALC
Emph
MOD
f/0DEV
Adjst
YNR
SYNC
SEP
19
50
22
20
14
13
15
To
SYSCON/SERVO
SECTION
55
54
35
C-CCD
46
CLOCK Drive
44
39
Y-CCD
42
MIX
52
AMP
DET
SQUEL CH
51
C.K
CLEAR
SYNC
50
SYNC SEP
FBC
Sharpness
56
YNR
NC
Video ALC
CONTROL
26
21
D LIM: Double Limit
FBC:
Feed Back Clamp
YNR: Y Noise Reduction
APC: Automatic Phase Control
ACC: Automatic Color Control
X301
73
81
X-tal
f0=1.68M
REC
LPF
Trap
REC-AMP
87
SP CH2
TRAP
VCA
REC-AMP
88
SP CH1
REC-AMP
87
EP CH2
REC-AMP
88
EP CH1
14
V. OUT
D-V SYNC
To/From
SYSCON/SERVO
SECTION
C-SYNC
From
SYSCON/SERVO
V.H/SW30
SECTION
SP REC
To
CYL.HEADS
EP REC
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