Panasonic DMR--EZ475VP, Service Manual

Page: 59 / 122

11.6.
System
Control
&
Servo
Block
Diagram
L
L
L
L
H
H
H
IIC DATA
A
U
D
IO
IC
(I
C
45
01
)
V
ID
E
O
IC
(I
C
30
01
)/
T
O
/F
R
O
M
IIC CLOCK
72
IIC
D
A
T
A
IIC CLOCK
71
IC HALL
DMR-EZ47VP/EZ475VP System Control & Servo Block Diagram
IC7501
(TIMER CPU)
P.FAIL S
-D
A
T
A
C
LO
C
K
V
T
R
S-DATA IN V
T
R
S
-D
A
T
A
O
U
T
V
T
R
TIMER CS IN V
T
R
29 32 30 31 83
TL6002
+
5V
CAP TL
C
A
P
F
G
+5V
PB CTL
V
C
C
+5V
19
TL6004
34
R
E
S
E
T
FR
ON
T (L
) P
.C.
B
.
PG OUT PG- PG+
M
A
IN
P
.C
.B
.
1
PP4601
PS6001
+
5V
3
IC7701
1
IR
(REMOTE CTL.RECEIVER)
14
IR
VTR S-DATA CLK
70
VTR S-DATA IN
69
VTR S-DATA OUT
68 15
V
T
R
T
IM
E
R
C
S
(S-REEL SENSOR) IC1512
CTL HEAD(+) CTL HEAD(-)
COILS MOTOR CYLINDER
2
IC6002
1
O
U
T
(RESET)
+
5V
5V(D)
37
(12MHz) X6001
12MHz OUT
39
12MHz IN
38
S
E
N
S
O
R
PHOTO TAKE-UP
Q1501
LE
D
S
E
N
S
O
R
D1501
SENSOR PHOTO SUPPLY
Q1502
T
A
B
S
W
SAFETY
S1531
+5V
(T-REEL SENSOR)
IC1511
4 2
1 3
4 2
3 1
TL23 TL24
80
T.REEL
79
S.REEL
27
SAFETY TAB
7
S
.P
H
O
T
O
8
T.PHOTO
SW MODE
S1532
5 4 3 2 1
S
W
4
S
W
3
S
W
2
S
W
1
S
W
4
S
W
3
S
W
2
S
W
1
30
P
O
S
IT
IO
N
S
W
4
P
O
S
IT
IO
N
S
W
3
31 32
P
O
S
IT
IO
N
S
W
2
P
O
S
IT
IO
N
S
W
1
33
PB CTL OUT EX.FF/REW
TW2002
97 82
6 5
P4002
1
P1531
2
P1531 P4002
HEAD CONTROL
95 94
C
O
M
P
O
S
E
R
FG/PG
AMPLIFIRE DIFFERENTIAL
17 16 15
CYL PFG
90
18
C
Y
L E
T
CTL AMP REF
96
O
R
E
F
91
UNLOADING LO
A
D
IN
G
C
A
P
F
G
IN
C
A
P
F
G
O
U
T
77
14
AMPLIFIRE DIFFERENTIAL
C
O
M
M
3
M
2
M
1
20
-
+
+
+
AMPLIFIRE DIFFERENTIAL
SELECTOR
GENERATOR S
IG
N
A
L
DRIVE M
O
T
O
R
PRE-DRIVE
DRIVE M
O
T
O
R
25 23 22
M
O
T
O
R
LOADING
M
- +
4 2
OUT 2 OUT 1
A
M
P
A
M
P
PRE-DRIVE
LO
G
IC
C
O
N
T
R
O
L
R
IN EC
P
F
G
F IN
83 84
6 5
(LOADING MOTOR & CYLINDER MOTOR DRIVE)
IC2501
HEAD FG CAPSTAN
3
P0201
P2571
TL2015
87 86
(SYSTEM CONTROL/SERVO/TIMER)
IC6001
CAP R/F CAP ET C
U
R
R
E
N
T
L
IM
IT
74 76 11
T
L2
50
2
7 6 5 2
P
25
71
P
25
71
P
25
71
P
25
71
P0201 P0201 P0201 P0201
+12.3V M
E
C
H
A
11 10
9
19
ED/S
EC
TL
V
M
P
O
W
E
R
HALL
SELECT D
IR
E
C
T
IO
N
T
O
R
Q
U
E
PROCESS S
IG
N
A
L
POSITION
A
M
P
D
E
F
A
M
P
E
C
A
M
P
TL
C
O
N
T
R
O
L
T
O
R
Q
U
E
AMPLIFIRE DIFFERENTIAL
DRIVE M
O
T
O
R
VH+ A3 A2 A1 H2+ H2- H1+ H1- H3+ H3-
HALL
HALL
HALL
COILS MOTOR CAPSTAN
(CAPSTAN MOTOR DRIVE)
IC0201
21 27 26 25 24 23 22 17 16 15
DMR-
EZ47VP
/
DMR-
EZ475V
P
59