Servo/System Control Block Diagram - Sony SLV-ED8KR Service Manual

SLV-ED8/ED9

3-4. SERVO/SYSTEM CONTROL BLOCK DIAGRAM

MTR 12V
VCC
OUTPUT
DRIVER
DRUM VS
OUTPUT
M
DRIVER
HALL
MATRIX
DEVICE
DRUM PG
PG
FG
DRUM FG
M901
DRUM MOTOR
SW 5V
VCC
U+ CTL-REF
REF
U–
HALL V+
DEVICE
V–
MTR 12V
W+
VM
W–
U
CAP VS
VS
V
CAP RVS
FRC
W
CAP TRQ PWM
TL
CAP FG
CAPSTAN
FG
M902
CAPSTAN
MOTOR
CTL
HEAD
M903
CAM MOTOR
M
05
MA-325 BOARD (3/5)
(SEE PAGE 4-15,4-17,4-19)
MTR 12V
CN101
IC101
(1/2)
1
DRUM ERROR
INTEGRATOR
6
7
2
5
3
4
SW5V
CN102
PS100
1
4
+
MTR 12V
IC101 (2/2)
7
CAP ERROR
INTEGRATOR
3
1 +
5
2
–
D141
2
6
3
CN161
CTL (X)
1
IC021
CTL (Y)
3 CTL AMP
1 3
D5V
IC001
IC001 (1/2)
COMPARATOR
REF AMP
6
–
7
+
1 5
3 +
–
2
Q001
IC161 $£ REC/PB
GAIN
SW
CTL CHECK
S101
REC PRF
2.4Vp-p (16MHz)
IC130
CAM MOTOR DRIVE
CN103
CAM (+)
3 10 4
CAM+ IN2
CAM (+)
2
CAM (–)
3
1 2 CAM– IN1
S100
CAM ENCODER
MODE SWITCH
MECHA
POSITION
3-7
IC161
SERVO/SYSTEM
CONTROL
74
DRUM DA
SO 46
IC161 ^•REC/PB
ASURA CS 44
ASURA RESET 40
IC161 1REC/PB
68 DRUM PG
5.0Vp-p (2V) 60
RF ENV
SCKI 81
SOI 80
5.1Vp-p (2V)
1
RE SWP
69 DRUM FG
SI 45
SW5V
IC161 ^ªREC/PB 47
S CLK
66
V SYNC
QVD 4
30
SCL 0 (I2C)
5.0Vp-p (360Hz)
SDA 0 (I2C) 28
2
73 AF REC P
CAP DA
AF REC 96
35 CAP STOP
AF ENV 59
99 STEP PLS
100
AF SWP
72 CAP RVS
A MUTE 31
84 CAP TRQ PWM
FULL ERASE 36
IC161 &º REC/PB
70 CAP FG
TV/VTR 26
AV ADJ 56
5.1Vp-p (1kHz)
7 REC CTL
77 REC COUNT
8
CTL RESET
IC161 ^¶PB
(2/2)
T SENS 61
67 PB CTL
S SENS 62
5.3Vp-p (2V)
92 CTLHYS HIGH
T/S LED 32
15 C IN (REC PRF)
42 XTAL
X161
16MHz
43 EXTAL T REEL FG 64
9 CAM
63
S REEL FG
22
MODE1
21
MODE 2
20
MODE 3
19
MODE 4
CN105
24 SI 0
5 ASURA CS
MODE
25 ASURA RESET CONTROL
(SEE PAGE 3-14)
7 SCLK
8 SO 0
F ENV
SCK I (SSB)
VIDEO 1
(SEE PAGE 3-4)
SO I (SSB)
RF SWP
SI
SCLK
VIDEO 2
COMP SYNC
(SEE PAGE 3-6)
QVD
V CLK (IIC)
VS DATA (IIC)
DATA (IIC)
CLOCK (IIC)
AF REC P
AF REC AUDIO
(SEE PAGE 3-10)
AF ENV
AF SWP
A MUTE
FULL ERASE
TUNER
TV/VTR
(SEE PAGE 3-11)
JS161
SWP ADJ
IC161 7REC JS162
5.0Vp-p (2V)
Q101
T. SENS
D102
T/S LED
Q100
T. SENS
Q111
LED
DRIVE
SW12V
PH100
T. REEL
PH101
S. REEL
3-8