Zenith D35, Service Manual

Page: 55 / 156

3-30 3-31
5. A/V BLOCK DIAGRAM
(PB MODE)
+
+
51 42 39 44
14
13
62
69
63
81 86 87 89 88 91 93 94 92 84
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HA118717NF
79
78
22
73
71
52 56
21
26
24
23
18
19
50
60
58
35
46
EP CH2 EP CH1
V. OUT
(TO u-COM)
D-V SYNC
(FROM u-COM)
System System
Y-CCD
C-CCD
CLOCK Drive
FBC
Video ALC
LPF
REC-AMP
SP CH2
REC-AMP
SP CH1
REC-AMP
EP CH2
REC-AMP
EP CH1
DATA
(FROM u-COM)
System
CLOCK
(FROM u-COM)
2fsc
(TO u-COM)
System
System
V.H/SW30
(FROM u-COM)
V.ENV
(TO u-COM)
System
SP CH2 SP CH1
Serial Cont
interface
X-tal
VCO/OSC
TRAP
FM AGC
P.EQ
G.EQ
D LIM
Y LPF
Main
De-Empf
DEMO S LPF
2M LPF
ACC
CTL Trap
fh Trap
HIFI Trap
C LPF
DEALY
MIX AMP
SQUEL CH
CLEAR
SYNC
CLAMP
CLAMP
Sharpness CONTROL
YNR
N
C
SYNC SEP
C-SYNC
(TO u-COM)
System
NL
De-eMPH
VCA
C.K
LPF
BD
BPF
CCD LPF
APC/ACC
DET
L- DET
Main
Conv2
Main
Conv1
(REC MODE)
+
+
+
+
+
+
1 51 52 42 39 44 46
35
31
30
28
29
21
26
24
23
18
19
50
22
20
14
13
15
LINE 2
VIDEO IN
LINE 1
VIDEO IN
TV
VIDEO IN
35
35
62
69
63
73
71
81
86 87 89 88
91
93 94 92
ATT -10dB
VIDEO
AGC
CLEAR
SYNC
V. OUT
(TO u-COM)
D-V SYNC
(TO u-COM)
System
System
System
Y-CCD C-CCD
CLOCK Drive
6dB
AMP
FBC
Video ALC
SQUEL CH
ATT -10dB
C-SYNC
(TO u-COM)
ATT -10dB
DT-587M's
LPF
AGC DET
CLAMP
Y-LPF
YNR
CLAMP
SYNC
SEP
D.E.
C-LPF
SPF
ACC
C-LPF
NL Emph
LPF
LPF
HPF
VCA
TRAP
FBC ALC
Main
Conv2
Main
Conv2
APC/ACC
DET
Main
Emph
FM
MOD
REC Trap
REC-AMP
SP CH2
REC-AMP
SP CH1
REC-AMP
EP CH2
REC-AMP
EP CH1
MIX ATT
B.E
C.K
CCD
LPF
L-DET
VCD
(-4dB)
f0=1.68M
f/0DEV
Adjst
X-tal
VCO/OSC
Serial Cont
interface
DATA
(FROM u-COM)
System
CLOCK
(FROM u-COM)
2fsc
(TO u-COM)
System
System
V.H/SW30
(FROM u-COM)
System
SP CH2 SP CH1 EP CH2 EP CH1
IC301
HA118717NF