System Control, Servo & Timer Block Diagram - Panasonic DMR-E75VP Service Manual

DMR-E75VP
21.4. System Control, Servo & Timer Block Diagram
IC0201
(CAPSTAN MOTOR DRIVE)
CAPSTAN
MOTOR
COILS
A1
15
A2 MOTOR DIFFERENTIAL
16
A3 DRIVE AMPLIFIRE
17
22 H3-
HALL 23 H3+
24 H1-
POSITION
DEF
SIGNAL
AMP
PROCESS
HALL 25 H1+
26 H2-
HALL 27 H2+
VH+ HALL
21
POWER
IC2501 (LOADING MOTOR & CYLINDER MOTOR DRIVE)
LOADING
MOTOR
- P1531 OUT 1
M
2 AMP
1
+ P1531 OUT 2
4 AMP
2
M1
22
CYLINDER
M2
MOTOR 23
M3
COILS
25
MOTOR
PRE-DRIVE
DRIVE
COM
20
PG
COIL
PG+
15
DIFFERENTIAL
PG- AMPLIFIRE
16
PG OUT
17
CONTROL
HEAD P4002
5
P4002
6
MODE
SW
S1532
1 SW1
2 SW2
3 SW3
4 SW4
5
+5V
Q1501 D1501 Q1502 S1531
SENSOR SAFETY
TAKE-UP SUPPLY
PHOTO LED PHOTO TAB SW
SENSOR SENSOR
IC6001
X SW
+15.5V
VM P0201 P2571
19
2
TL2502
CAP TL
TORQUE TL TL P0201 P2571
9 11
CONTROL AMP 5
EC P0201 P2571
EC
10 76
AMP
6
TORQUE
ED/S P0201 P2571
DIRECTION 11 74
7
SELECT
TL2015
CAP FG
86
CAPSTAN
P0201 P2571
FG 87
3
HEAD
F IN
5 84
CONTROL
PRE-DRIVE
LOGIC
R IN
6 83
+ + + 91
MOTOR
DRIVE DIFFERENTIAL
SELECTOR
SIGNAL AMPLIFIRE
N
GENERATOR
- 96
VCC 19 +5V
FG/PG DIFFERENTIAL
14 77
COMPOSER AMPLIFIRE
18 90
TL6001
73
94
95
TW2002
PB CTL
82
97
SW1 33
SW2 32 POSITION SW2
SW3 31
SW4 30 POSITION SW4
8 T.PHOTO
7 S.PHOTO
27 SAFETY TAB
+5V
IC1511 IC1512
(T-REEL SENSOR) (S-REEL SENSOR)
2 1 2 1 TL24
4 3 4 3 79 S.REEL
TL23
80 T.REEL
(SYSTEM CONTROL/SERVO/TIMER)
32KHz IN 35
X6002
(32KHz)
CURRENT LIMIT H 32KHz OUT 36
CAP ET 12MHz IN 38
X6001
(12MHz)
CAP R/F 12MHz OUT 39
5V(D) 37
CAP FG OUT
P.FAIL L 78
CAP FG IN
RESET L 34
LOADING H
UNLOADING H
POWER ON H 75
O REF VTR TIMER CS 15
VTR DATA OUT 68
VTR DATA IN 69
CTL AMP REF
VTR DATA CLK 70
CYL ET
CYL PFG
256Hz
CTL HEAD(-)
CTL HEAD(+)
EX.FF/REW L
PB CTL OUT
PS33001 PP4801
REMOCON 14
3 10
POSITION SW1
POSITION SW3
PS33001 PP4801
VTRKEY 2 6
5 8
PS33001 PP4801
L VTRKEY 1 5
2 11
70
MAIN P.C.B.
BACK-UP
BATTERY
B7751
+5V
IC6201
(RESET)
1 OUT +5V 2
TL6004
TL6002
IC6301
(SWITCHING REG.)
+5V 1 OUT IN 4 X SW+5.8V
SW
3
P6005
P6003
P6003
P6003
P6005
IC7801 FRONT JACK P.C.B.
(REMOTE CTL.RECEIVER)
1 IR 3 +5V
< VTR OPERATION KEY >
S7806 S7805 S7803 S7802 S7801
POWER FF SKIP-R STOP CH-UP
S7813 S7812 S7810 S7809 S7808 S7807
EJECT REW SKIP-F CH DN PLAY REC
DMR-E75VP
System Control,Servo & Timer
Block Diagram
FROM
POWER
P31905
5
P31903
2
P31903
5
TO/FROM
POWER & DIGITAL
P31903
I/F P.C.B.
4
P31905
2