CYLINDER ASSEMBLY
V(R)-1
V-COM
V(L)-1
CL253
1
2
3
Video Block Diagram
1-9-13
1-9-14
HE270BLV
(DECK ASSEMBLY)
VIDEO (R)-1
HEAD
SP
HEAD
AMP
EP
HEAD
AMP
REC FM
AGC
FROM/TO SERVO/SYSTEM
CONTROL BLOCK
FROM
SERVO/SYSTEM
CONTROL BLOCK
C-SYNC
TRICK-H
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
SECAM-H
LUMINANCE
SIGNAL
PROCESS
CHROMINANCE
SIGNAL
PROCESS
PB-H OUT
C-SYNC
V-ENV
H-A-COMP
H-A-SW
D-V-SYNC
C-ROTA/RF-SW
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
V(L)-2
V-COM
V(R)-2
4
5
6
TU701(TUNER UNIT)
IC301
(Y/C SIGNAL PROCESS)
IC501
(OSD)
REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC
SERIAL
DECORDER
V-OUT1
1
V-IN1
1
3
3
V-OUT2
1
V-IN2
3
1
3
JACK CBA
IC370
(PAL/SECAM DECTECTOR)
PAL/SECAM
DETECTOR
48
50
52
54
56
24
6
50
55
52
19
20
JK101
V-OUT1
V-IN1
19
20
JK102
CL151
CL152
CL101
CL102
V-OUT2
V-IN2
61
63
96
95
93
94
90
89
88
87
CHARA.
INS.
CCD 1H DELAY
SP
BYPASS
MUTE
PB/EE
IN1
TUNER
IN1
TUNER
MUTE
PB/EE
FRT
IN2
FRT
IN2
AGC
P
R
R
Y
C
P
R
P R
P
EP
Y. DELAY
Y/C
MIX
+
21
79
78
AGC
VXO
OSD
CHARACTER
MIX
COLOR
-IN
FBC
1/2
58
59
65
25
29
28
44
17
14
18
2
16
29
1
28
IC640
(VPS)
VPS-V
IIC-BUS SDA
DAVN-L
IIC-BUS SCL
IIC-BUS SDA
IIC-BUS SCL
6
14
7
16
DAVN-L
69
68
46
43
" " = SMD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
67
84
83
71
62
70
D-REC-H
80
BUFFER
Q101
BUFFER
Q102
J23
V-OUT
WF1
TP301
X301
4.433619MHz
C-PB
WF3
VIDEO-OUT
TU-VIDEO
V-IN1
TO
SERVO/SYSTEM
CONTROL BLOCK
VIDEO-IN
JK756
V-IN-F
BUFFER
Q351
MAIN CBA
TP502
RF-SW
WF2
Comparison Chart of
Models & Marks
Model
Mark
VR140/02
VR140/07
VR140/39
N
O
P
VR140/58
Q
VR840/07
R
VR840/16
VR840/39
VR840/58
S
T
U
R,S,T,U
R,S,T,U
R,S,T,U
R,S,T,U
P,Q,T,U
P,T
P,R,S,T,U
