Servo/System Control Block Diagram - Sony SLV-GA30 Service Manual

Q Q
3 7 6 3 1 5 1 5 0

3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM

MA-336 BOARD
DRUM MOTOR
CN204
M901
VCC 7 7
OUTPUT
D VS
1 1
M OUTPUT
HALL
MATRIX
DEVICE
D PG
5 5
PG
FG
D FG
3 3
CAPSTAN MOTOR
M902
D5V
CN205
VM 7 7
U+
VCC 1 1
U-
LIMITER
HALL TL 6 6
V+
DEVICE
V-
W+
W-
CTL REF
4 4
U
CAP VS
V 5 5
T E
L 1 3 9 4 2 2 9 6 5 1 3
CAP RVS
W 2 2
CAPSTAN CAP FG
3 3
FG
CN401
6
CTL
HEAD
5
CAM
CN203
MOTOR
3
M
1
MODE1
CAM
MODE2
ENCODER
MODE3
MECHA
( (
MODE4
POSITION
w w w
.
GF90K/GF99K
(SEE PAGE 3-10)
16
(SEE PAGE 4-7)
IC201 @§ REC/PB
D5V
IC201 (2/3)
SERVO CONTROL
5Vp-p
0.88MHz
26 DRUM DA
IC201 #ª REC/PB
4.1Vp-p
25Hz
39 DRUM PG
D203
T/S LED
38 DRUM FG
IC201 #• REC/PB
4Vp-p
600Hz
M12V
D5V D5V
66 CAP PWM
D5V
IC201 @∞ REC/PB
96 CAP QR
25 CAP VS
1.18MHz
55 CAP RVS
IC201 $º REC/PB
40 CAP FG
758Hz
IC201 @£@¢ REC/PB
5Vp-p
25Hz
IC201 %¢ REC/PB
RFU801 4
4Vp-p
H
TO/FROM
VIDEO
BLOCK
(SEE PAGE 3-4)
GA70K/GA77K
GF90K/GF99K MODEL
x a o
y
TO/FROM
i AUDIO
BLOCK
(SEE PAGE 3-8)
IC302 1
Q250, 251
FROM
KR SW/
KARAOKE SW
CN201 7
ECHO VR
BLOCK
3-5
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SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
8
IC201
(3/3)
IC204 IC203
SYSTEM CONTROL
5V
12V 3 1 7 RESET 8 16 RESET POWER LED 67
REG
M12V
88
T REEL FG
KEY 1 3
PH202
T REEL
FG
89 S REEL FG
PH201
S REEL
FG
12 T SENS
M12V
Q201
TAKE END
KEY 2 4
SENSOR
11 S SENS
Q202
SUPPLY END
SENSOR
Q203
LED
74 T/E LED
DRIVE
SYNC REC 86
RV201 5V
GF80/GF90K/GF99K
A SWP
9 A SWP ADJ
/PH99
ADJ
RV202
5V
KEY 4 6
V SWP
8
V SWP ADJ
ADJ
S202
REC
Q Q
1 REC PRF
5Vp-p PROOF
3 7 6 3
73 10M OUT
X201
IC201 #¡ REC
10MHz
72 10M IN
4.6Vp-p
3.1Vp-p
25Hz
31 CTL IN+
32 CTL IN-
IC201 #™ REC
IC202
CAM
KEY 3 5
MOTOR DRIVE
3.1Vp-p
10 CAM+
25Hz
2 CAM- IN2 4 95 CAM ADJ-A 92
ADJ-B 93
MODE1
62 MODE1
MODE2
MODE2
63 REMOCON 82
MODE3
64 MODE3
MODE4
65 MODE4
IC101 81 RF SWP 24 RF SWP
IC101 84 V ENV
13 V ENV SHARP LED 87
,Q220 C MESECAM DET 80 TV/VTR TRACK LED 56
QVD
IC101 51 27 QVD L LED 84
HF LED 83
IC101 50 C SYNC 54 C SYNC R LED 85
IC101 63 V DATA V DATA
100
IC101 62 V CLOCK 99 V CLK
IC101 64 KILL
19 KILL IN
REC LED 81
SHARP 1
Q217 B 20 SHARP 1
C IN LED 57
Q218 B SHARP 2 29 SHARP 2
IC101 17 SHARPNESS 94 SHARPNESS VR
IC101 18 ,Q204 B NTSC NTSC DNS 5 LED 79
18
DNS 4 LED 78
DNS 3 LED 77
Q581 C AMS 58 AMS
DNS 2 LED 76
A MUTE
IC101 99 21 AU MUTE DNS 1 LED 75
u 1 6 3
Q751 B PB 90 PB DEST 2 7
Q752 B LINE 1 91 LINE 1
.
IC301 41 SDA 98 AF DATA
IC301 42 SCL
97 AF CLK
IC301 39 AF ENV 14 A ENV SUR CONT 1 59
AF SWP
,IC301 40 23 AF SWP SUR CONT 2 60
IC302 5 REC P 17 REC P SUR CONT 3 61
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2 4
9 9 8
FR-140 BOARD
TO
POWER ON IC502 4 KARAOKE
BLOCK
(SEE PAGE 3-10)
CN207
CN605
LED POWER LED POWER
4 4
KEY 1
1 1
S601
STANDBY
KEY (1)
3 3
CN210
KEY (1)
1
TEST
2
FR-141 BOARD
CN604
KEY 2
1 1
S606
STOP
KEY (2)
3 3
KEY (4)
4 4
S609
EXCEPT GA30
REW
Q210
LED SYNC REC
5 5
DRIVE
CN208
CN208 CN201
CN601
KEY (4)
5 11
KEY 4
4 12
S203
REC
KEY (1)
2 14
1 5 1 5 0 8 9 2 4
IC201 &™ REC/PB
3.2Vp-p KEY (2)
10MHz
3 13
GA66 /GA77K/GF99K
CN206
CN602
KEY 3
7 7
S204
PAUSE
ADJ-A
6 6
ADJ-B
5 5
REMOCON
13 13
Q207-209
Q211-213 GF80/GF90K/GF99K/PH99 MODEL
Q233 GA77K:PL/GF99K:PL MODEL
SHARPNESS LED
2 2
TRACKING LED
3 3
L LED
10 10
LED
HIFI LED
11 11
DRIVE
R LED
12 12
DNS 5 LED
9 9
DNS 4 LED
8 8
CN201
CN601
REC LED
14 2
CASSETTE LED
13 3
TV/VTR LED
15 1
m DNS 3 LED
12 4
DNS 2 LED
11 5
DNS 1 LED
9 7
c o SURROUND LED
8 8
Q221,222,226 S801
OTHER
LED TV
DRIVE SYSTEM
TV
SR-C1
TO
6
SURROUND
SR-C2
BLOCK
5
SR-C3
SR-35 BOARD
4
CN701
GA66/GA77K/GF99K EXCEPT GA30
CN702 (SEE PAGE 3-9)
3-6
2
9 9
(SEE PAGE 4-23)
Q601
D601
POWER
ON
Q602
POWER
ON
EXCEPT
GA77K:PL/GF99K:PL
MODEL
S602
ON
EJECT
EXCEPT GA30
(SEE PAGE 4-24)
S607 S608 S620
PLAY FF SYNC
REC
+5V
D602
GA66/GA77K/GF80/GF90K/GF99K/PH99
LINE 1 S615
LINE
SELECT
LINE 2
AUTO
S605
COLOR
PAL/MESECAM
SYSTEM
9 8 2 9 9
NTSC
NTSC 3.58
S610
NTSC
NTSC 4.43
S603
PB
VIRTUAL
SOUND ON PAL TV
EXCEPT GA77K:PL/GF99K:PL
EP
S614
SP/EP
S611 S612
SP
AUTO/ ON SCREEN
MANUAL DISPLAY
S613
PICTURE
CONTROL
IC601
+5V
REMOTE
1 CONTROL 2
RECEIVER
D603-607
D608 EXCEPT GA30
D609
D610-612 GF80/GF90K/GF99K/PH99
D613 GA77K:PL/GF99K:PL
D614 GA66/GA77K/GF99K
D615,616
FR-142 BOARD
(SEE PAGE 4-21)