Sony SLV-7700KME Service Manual page 43

SLV-7700KME/7700KML
4-6. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
MA-303 BOARD
DRUM MOTOR
CN275
M901
VCC 5 1
OUTPUT
D VS
4 2
M OUTPUT
HALL
MATRIX
DEVICE
D PG
3 3
PG
FG
D FG
2 4
M12V
CAPSTAN MOTOR
M902
SW5V
CN271
5 8
VM
U+
VCC 4 7
U-
LIMITER
HALL TL 3 6
V+
DEVICE
V-
W+
W- D251
U
CVS
V 2 5
CAP RVS
W 7 4
CAP FG
CAPSTAN
6 3
FG
HE901
CN101
ACE HEAD
CTL (Y)
3
CTL
HEAD
CTL (X)
1
CN102
1
FOR
CHECK
2
M903 CN291 CN291
CAM
1
MOTOR
M
3
CN281
S901
MODE1
4
CAM
MODE2
ENCODER 3
MODE3
MECHA 2
( (
MODE4
POSITION
1
16
M12V
IC251
(1/2)
IC201
(1/2)
DRUM ERR
SERVO CONTROL
INTEG
14
13
74 DRUM DA
IC201 ^• REC/PB
5Vp-p (V)
68 DRUM PG
69 DRUM FG
IC201 ^ª REC/PB
5Vp-p (300Hz)
34
M12V CAP TRQ1
SW5V 33
CAP TRQ2
8 CAP TRQ3
99 STEP PLS
35 CAP STOP
IC251 (2/2)
CAP ERR
INTEG
16
15
73
CAP DA
79 CAP RVS
IC201 &º REC/PB
19
18
20 70 CAP FG
4.4Vp-p (1.56kHz)
IC101
(1/2)
CAP FG AMP
IC201 7 REC
IC101
(2/2)
CTL
REC/PB AMP
IC201 ^¶ PB
INDEX 11 96 CTL INDEX
7 CTL HEAD INH 13 94 CTL REC
9 7
BIAS RC 10 REC CTL
CTL 1 67 PB CTL
4 DC
RTG MM 2 95 CTL STEP
CTL CHECK
5 AMP OUT
4-11
IC201 $™ REC/PB
IC201
SYSTEM CONTROL
4.4Vp-p (16MHz)
42 XTAL
X160
16MHz
43 EXTAL
SW5V
64
T REEL FG
PH262
T REEL IC251
FG
REEL FG
AMP
63 S REEL FG
PH261
S REEL
FG
62 T SENS
Q261
D6V
TAKE UP END
SENSOR
D261
T/S LED
61 S SENS
Q262
IC201 1 REC/PB
SUPPLY END
SENSOR
Q263
5Vp-p (V)
LED
32
T/E LED
DRIVE
IC201 ^§ REC/PB
4Vp-p (H)
S101
5Vp-p (V)
REC
15 REC PRF
PROOF
5Vp-p (V)
IC291
CAM
MOTOR DRIVE
PS13V 7 VCC1
8 VCC2 V 4 31 CAM 12V
2 CAM- LOAD 6 38 CAM LOAD
10 CAM+ UNLOAD 5 37 CAM UNLOAD
MODE1
30 MODE1
MODE2
29 MODE2
MODE3
28 MODE3
MODE4
27 MODE4
(2/2)
S OUT 46
S IN 45
S CLK 47
ASURA CS 44
ASURA RESET 40
MESECAM IC302
MESECAM 18
NT JUDGE 78 NT JUDGE IC302
QVD 2 QVD IC302
Q201
APC PWM 84 SHARPNESS IC302
APC ERROR 60
PA L60 6 PAL 60 IC302
PENTAL IC302
PENTAL 20
NOICAN 9 NOICAN IC302
SP/EP/LP 19 SP/EP/LP IC302
JOG 5 JOG IC302
ORC SETTEI 75 ORC SETTEI Q310
NTSC 3.58 93 NTSC 3.58 IC302
V PB 23 Q306
V PB
VCD/VHS 91 IC301
VCD/VHS
NTSC Q304
NTSC 24
SP 92 SP CN301
RF ENV 50 RF ENV CN301
RF SWP 1 RF SWP CN301 12
DATA 80 DATA CN301 14
CLK 81 CLK CN301 13
V SYNC 66 COMP SYNC CN301 11
VCD/VHS IC801
AF DATA IC501
AF CLK IC501
NTSC PB
VHS VIDEO CD
ON PAL
TV
PAL
NTSC
S901
4.43
NT PB SW 59
NTSC
NTSC
3.58
NT PB CN801 23
AMS 21 AMS Q804
NA PB 98 NA PB IC801
SOUND LEVEL 58 SOUND LEVEL IC812
MIC LEVEL 57 MIC LEVEL IC812
A MUTE 17 A MUTE IC501
AF ENV 55 AF ENAV IC501
Q522
NT/PAL 24 NT/PAL
AF SWP 100 AF SWP IC501
REC 48 REC CN501
AF REC P 4 AF REC P CN501
NA REC P 16 NA REC P Q806
FULL ERS 36 FULL ERS Q892
HF ADJ CN891
HF ADJ 56
4-12
CN901
ASURA SO
5
ASURA SI
4
TO/FROM
ASURA CLK
DISPLAY CONT.
3
ASURA CS HI-66 BOARD
11
CN301
ASURA RESET
10
(SEE PAGE 4-10)
26
40
14
3
24
5
6
22
TO/FROM
29 VIDEO
BLOCK
B
(SEE PAGE 4-6)
35 ,Q311 B
B ,Q322 B
2
B ,Q315 B ,Q319 B
3
5
10
8
9
TO/FROM
AUDIO
BLOCK
(SEE PAGE 4-7)
C
9
7
1
6
10
B ,Q532 B
27 ,CN501 6
5
4
B
B
2
CN701
TO
NA PB TUNER BLOCK
5
TU-168 BOARD
CN703
(SEE PAGE 4-19)