Video Block Diagram - Hitachi VTFX340EUK Service Manual

6-2 Video Block Diagram

MAIN CBA
Q351 BUFFER
TU701(TUNER UNIT)
VIDEO-IN 6
VIDEO-OUT 24
JACK CBA
JK101 CL101 CL151
Q101
V-OUT1 19 1 V-OUT1 1
BUFFER
20 3 V-IN1 3
V-IN1
JK102 CL102 CL152
Q102
1 1
V-OUT2 19 BUFFER V-OUT2
3 V-IN2 3
20
V-IN2
18
FROM/TO
IC501 (OSD)
SERVO/SYSTEM
CONTROL BLOCK
OSD
50
CHARACTER
52
MIX
IC301
(Y/C SIGNAL PROCESS) 65
TUNER
48 BYPASS AGC
IN1
50
IN2
52
FRT
56 CHARA.
IN2
INS.
FRT
PB/EE
MUTE
TUNER
IN1
PB/EE
MUTE
FBC
WF1
J23
V-OUT
R P
61
AGC
63
58 59
REC-VIDEO SIGNAL
DAVN-L
IIC-BUS SDA
IIC-BUS SCL
43 46 68 69 78 79
SERIAL
Y. DELAY
DECORDER
R P
LUMINANCE
SIGNAL
PROCESS
Y
CCD 1H DELAY
REC FM
+
AGC
1/2
C
CHROMINANCE
SIGNAL
PROCESS
R P R P
Y/C
MIX
VXO
28 29 21
TP301
X301
4.433619MHz C-PB
WF2
PB-VIDEO SIGNAL MODE: SP/REC
IC640 (VPS)
14 DAVN-L
6 IIC-BUS SDA
7 IIC-BUS SCL
16 VPS-V
CL253
96 V(R)-1 1
SP
SP
95 V-COM 2
HEAD
93 V(L)-1
3
AMP
LP
94 V(L)-2
4
V-COM 5
V(R)-2 6
90
LP
89
HEAD
88
AMP
WF1
87
TP502
RF-SW
D-REC-H
D-REC-H 80
RF-SW
C-ROTA
C-ROTA/RF-SW 70
D-V-SYNC
D-V-SYNC 62
H-A-SW
H-A-SW 71
H-A-COMP
H-A-COMP 83
V-ENV
V-ENV 84
C-SYNC
C-SYNC 67
(DECK ASSEMBLY)
CYLINDER ASSEMBLY
VIDEO (R)-1
HEAD
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
VT-FX340E(UK)
FROM/TO SERVO/SYSTEM
CONTROL BLOCK