Panasonic NV-MV20EG Service Manual page 131

IC0201
(CAPSTAN MOTOR DRIVE)
CAPSTAN
MOTOR
TL0201
24
MOTOR DIFFERENTIAL
22
DRIVE AMPRIFIER
25
27
1
H3 2
3
POSITION
H1 4 SIGNAL
PROCESS
5
H2 6
9
LOADING
MOTOR
P1501 P2501 P0201
19
1 9
P1501 P2501 P0201
21
2 8
INPUT OUTPUT
MODE
PIN 15 PIN 16 PIN 19 PIN 21 P0201
H L H L FORWARD CAPSTAN
L H L H REWIND FG HEAD
H H L L BRAKE
L L OPEN OPEN STOP
CAP FG5V
PS 12V
Q6008
QR6001
FROM
INPUT/ AV1 PB H
OUTPUT
CYLINDER STATOR UNIT
IC2501
P2901
6,7 VM P2502-3,4
MAIN COIL 2 1 M2 P2502-9
MAIN COIL 1 9 M1 P2502-1
MAIN COIL 3 3 M3 P2502-7 16
5 GND P2502-5
8 HE- P2502-2
4 HE+ P2502-6
HALL
2 VH+ P2502-8
IC
REG
5V
REG
IC1502
5V
(S-REEL SENSOR)
1
4
Q1501 D1501 Q1502 S7507
TAKE UP SENSOR SUPPLY SAFETY
PHOTO LED PHOTO TAB SW
SENSOR SENSOR
IC6001
(SYSTEM CONTROL/SERVO IC)
TL2503
P0201 P2501
TORQUE TL CURRENT
12 1
CONTROL AMP LIMIT
1
HALF
WAVE
TL AMP
CAPSTAN
P0201 P2501
EC
10 79 ERROR
AMP
2
TORQUE
CAPSTAN
P0201 P2501
TORQUE
7 74 REVERSE/
DIRECTION
3
FORWARD
UNREG
26
14.5V
18 75 HALF WAVE
P0201 P2501
15 63 LOADING
12
CONTROL
LOGIC
P0201 P2501
16 62 UNLOADING
11
TL2502
P2501
87 CAPSTAN
FG IN
4
TW2015
CAPSTAN
86
FG OUT
TW6002
73 125Hz
1
S1501
2 32 POSITION SW2
MODE
3 31 POSITION SW3
SW
4 33 POSITION SW1
10 AV1 PB
15 AVPB
16 AVPB
TW2002
97 PB CTL OUT
(CYLINDER MOTOR DRIVE)
3 COM 100 EX.FF/REW
2
MOTOR
1 PG/FG 4 90 CYL PFG
DRIVE
7
DIFFERENTIAL REG
6 5
AMPLIFIER 5V
CYLINDER
TORQUE
SCHMIT 9 77 ERROR
CONTROL
TORQUE
8 TAKE-UP PHOTO
7 SUPPLY PHOTO
81 SAFETY TAB
IC1501
(T-REEL SENSOR)
REG
5V
2 1 2 TL6012
3 4 3 80 T-REEL PULSE
TL6013
79 S-REEL PULSE
P4002
94 CTL HEAD(-)
5
CTL
HEAD
P4002
95 CTL HEAD(+)
6
IC7501
N.SW
P.FAIL L 76 1 RESET 2
5V
IR 14
IC7503
RESET L 34 1 RESET 2
H
H BACK UP 5V 37
H
12M START H 43
N.SW
5V
QR1003
FIP ON L 42
12MHz IN 38
X6001
12MHz OUT 39
32KHz IN 35
X6002
32KHz OUT 36
H
IIC CLOCK 71
H IIC DATA 72
FLD CS 64
M S.CLOCK 70
S.DATA OUT 68
S.DATA IN 69
L
N.SW
5V
POWER KEY 82
L
DP7501
IC7502
IR N.SW
1 3 TIMER DISPLAY
RECEIVER 5V
F+ F-
45 1 39
Q1001
C7507
BUFFER
HEATER(+)
FROM
HEATER(-)
POWER
UNREG -29V
QR1002
IC6002
(EEPROM)
SCL
SDA
6 5
IIC CLOCK
IIC DATA
POWER
S7506
TIMER INTELLIGENT PROG
CHECK TIMER PLAY
EJECT
S7517 S7510 S7516 S7505
FF T.REC STOP REC
S7514 S7513 S7515 S7501
QUICK
REW PLAY ERASE
S7512 S7511 S7503
NV-MV20EG/EB/EBL,MV15EG/EP
SYSTEM CONTROL & SERVO BLOCK DIAGRAM
IC7501
33 23 5
36 SEG1
|
18 SEG18
11 GRID1
|
17 GRID7
19 VEE
TO/FROM
LUMI.& CHRO,
INPUT/OUTPUT,
TUNER
3 CS
2 SERIAL CLOCK
1 SERIAL DATA
EXT LINK N.SW
S7508 5V
5 AN2
CH DOWN
N.SW
5V
S7502
6 AN1
CH UP
N.SW
5V
S7504
7 AN0