System Control, Servo & Timer Block Diagram - Panasonic DMR-EZ45VEB Service Manual

DMR-EZ45VEB
12.2. SYSTEM CONTROL, SERVO & TIMER BLOCK DIAGRAM
CAPSTAN
MOTOR
COILS
HALL
HALL
HALL
LOADING
MOTOR
+
P1531
M
1
-
P1531
2
CYLINDER
MOTOR
COILS
PG
COIL
CONTROL
HEAD P4002
5
P4002
6
MODE
SW
S1532
1 SW1
2 SW2
3 SW3
4 SW4
5
+5V
Q1501 D1501
SENSOR
TAKE-UP
PHOTO LED
SENSOR
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IC0201 (CAPSTAN MOTOR DRIVE)
VM P0201 P2571
19
2
A1
15
A2 TL P0201 P2571
MOTOR DIFFERENTIAL TORQUE TL
16 9
DRIVE AMPLIFIRE CONTROL AMP
A3 5
17
22 H3-
EC EC P0201 P2571
10
AMP 6
23 H3+
24 H1-
POSITION TORQUE
DEF ED/S P0201 P2571
SIGNAL DIRECTION 11
AMP
7
PROCESS SELECT
25 H1+
26 H2-
27 H2+
VH+ HALL
21
POWER
CAPSTAN
P0201 P2571
FG
3
HEAD
IC2501 (LOADING MOTOR & CYLINDER MOTOR DRIVE)
OUT 1 F IN
2 AMP 5
CONTROL
PRE-DRIVE
LOGIC
OUT 2 R IN
4 AMP 6
M1
22
M2
23
M3
25
+ + +
MOTOR
MOTOR DRIVE DIFFERENTIAL
PRE-DRIVE SELECTOR
DRIVE SIGNAL AMPLIFIRE
GENERATOR
-
COM
20
VCC 19 +5V
PG+
15
DIFFERENTIAL FG/PG DIFFERENTIAL
14
PG- AMPLIFIRE COMPOSER AMPLIFIRE
16
PG OUT
17 18
+5V
IC1501 IC1502
(T-REEL SENSOR) (S-REEL SENSOR)
2 1 2 1
4 3 4 3
Q1502 S1531
SAFETY
SUPPLY
PHOTO TAB SW
SENSOR
IC6001 (SYSTEM CONTROL/SERVO/TIMER)
X SW
+12V
TL2502
CAP TL
11 CURRENT LIMIT H
76 CAP ET 12MHz IN 38
X6001
(12MHz)
74 CAP R/F 12MHz OUT 39
5V(D) 37
TL2515
CAP FG
86 FG. AMP. OUT
87 FG. AMP. IN
RESET L 34
29 LOADING H
28 UNLOADING H
PON H 75
91 O REF TIMER CS 15
TIMER BUS DATA OUT 68
N TIMER BUS DATA IN 69
96 CTL AMP REF
TIMER BUS CLK 70
77 CYL ET
IIC CLK 71
90 PFG
IIC DATA 72
94 CTL HEAD(-)
95 CTL HEAD(+)
TW2002
PB CTL
82 EX.FF/REW L
97 PB CTL OUT
REMOCON 14
SW1 33 POSITION SW1
SW2 32 POSITION SW2
SW3 31 POSITION SW3
SW4 30 POSITION SW4
VHS KEY 2 6
8 T.PHOTO
7 S.PHOTO
26 SAFETY TAB L VHS KEY 1 5
TL24
79 S.REEL
TL23
80 T.REEL
52
AD 5V
IC6201
(RESET)
4 OUT +6V 5
TL6004
TL6002
IC6302
(SWITCHING REG.+5V)
+5V 1 OUT IN 4 X SW+5.8V
ON
3
TO
IC3002 5 , QR4501
P6001 P9101
12
P6001 P9101
8
P6001 P9101
7
P6001 P9101
6
TO
IC3901 88 , TU7801 14 , IC3001 73 , IC4501 42
TO
IC4501 43 , IC3901 89 , TU7801 15 , IC3001 74
P6001 P9101
4
IC7502 FRONT JACK P.C.B.
(REMOTE CTL.RECEIVER)
PS6001 PP7503
1 IR 3 AD +5V
3 3
PS6002 PP4801
4 4
S7801 S7802 S7803
POWER FF CH-UP
PS6002 PP4801
1 1
S7804 S7805 S7806
EJECT REW CH DOWN
DMR-EZ45VEB
SYSTEM CONTROL / SERVO & TIMER
BLOCK DIAGRAM
FROM
POWER
TO/FROM
POWER &
DIGITAL I/F
P.C.B.
,