Servo Block Diagram - Sony CCD-TRV32 Service Manual

CCD-TRV32/TRV34/TRV34PK/TRV44/TRV52/TRV53/TRV312/TRV512(NTSC)
CCD-TRV14E/TRV24E/TRV44E(PAL)

3-12.SERVO BLOCK DIAGRAM

(SEE PAGE 4-25)
B-MECHA CHASSIS
VC-188 BOARD
DRUM
CN400
FG
3 15
FG
FG/PG COM
2 14
PG
PG
1 13
CAPSTAN
CN401
FG
VCC 1
10 DIG 3V
(+)
CAP FG FG OUT
1
WAVE
SHAPER
(-) OFFSET ADJ
2
16
3-28
!∞ IC403 !•REC/PB
300Hz (PAL) 3Vp-p
360Hz (NTSC)
IC400
(2/2)
(SEE PAGE 4-25)
SERVO CONTROL
(MECHA CONT)
IC404 (4/4)
L.P.F
FG IN FG OUT 18 67 DRUM FG
DRUM PWM 74 L.P.F 8 B IN2 B OUT2
V REF
ISNF
11 66
PG IN PG OUT DRUM PG
L.P.F 6 B IN1 B OUT1
IC403 (1/2)
WAVE SHAPER
CAPSTAN SERVO FR B
!™ IC400 ^§ REC/PB
IC403 !¡REC/PB
CAP PWM 73
!¢ IC400 ^• REC/PB
25Hz (PAL) 3Vp-p
30Hz (NTSC)
3Vp-p
68 CAP FG 1148Hz (PAL)
822Hz (NTSC)
REF PILOT 83
ATF ERROR
58
MECHA CONTROL
DRUM ON 96
75 C FG HMS
CAP FWD/RVS 100
CAP ON 99
!§ IC400 &§ REC/PB
EVER 3V
51 AVREF
52 AVDD
L400 5.859MHz (PAL) 3Vp-p
5.947MHz (NTSC)
87 VDD
IC402
ATF SERVO
REF PILOT
5
12 11
RP PB MODE
17
5.9M ATF CLK 76 CLK 5.9M
ATF STBY 80 14 STBY
CF ATF 29 21 CS
19 SCLK
20 S IN
PB IN
31
IC405 4 MEC SCK
FROM
SYSCON IC400(1/2) 78 MEC SO
BLOCK
IC402(1/2) 29 PB RF
(SEE PAGE 3-13)
DD-94 BOARD
(SEE PAGE 4-99)
IC001 DRUM/CAP
PWM DRIVE
(1/3)
VCC 5.6 63
CN302 CN003
DRUM ERR
9 24 24 15 3
SWITCHING
SWITCHING
16 2 2
DRIVE
10 17 (5) 1
64 1
CAP ERR
7 23 23
11 21 RT 3
22 CT
23 SCP 14
24 MOS DUTY
26 SOFT DUTY
10 7
SWITCHING
SWITCHING
11 6 2
DRIVE
12 5
(6)
4 1
3
9
DIG 3V
(2/2)
30
AVDD
L.P.F 13
V REF
FH
16KHz
2 L.P.F 7
B.P.F
10
L.P.F
MOD 8 9
AMP
47KHz
3 L.P.F 6
B.P.F 3 FH
3-29
!¡ IC403 1,2,@ª REC/PB
1Vp-p
150Hz (PAL)
180Hz (NTSC)
IC403 (2/2)
B-MECHA CHASSIS
DRUM MOTOR
DRIVE
L002
MT UNREG
DIG 3V 8 VCC 1
CN400
Q005
DR 5V 7 VCC 2
9 U
.
U 1
10
CN003
CN302
U IN 26
4 13 DRUM VS 13
. . .
6 VS
5 14 14 7 V
.
V 2
8
V IN 27
5 W
.
W 29
6
W IN 25
COM
Q006
COM 28 4
30 I COM
3 STBY
CN401
L005
4 11 CAP VS 11 CAP VS 7 CAP VS
. . . .
5 12 12 8
VCC 2
MT UNREG 9
CAP FWD/RVS FRC
4
CAP ON
STAND BY
3
RP PB MODE IC101(1/2) 16
REC ATF IC101(1/2) 63
TO/FROM
VIDEO
BLOCK
(SEE PAGE 3-10)
CAP FG CN102 9
CAP FG DUTY IC302 20
(SEE PAGE 4-25)
M901
DRUM
MOTOR
CAPSTAN MOTOR DRIVE
VS
M902
VCC
CAPSTAN
MOTOR
H1 (+) U 1
U
H1 (-) U 2
H2 (+) V 1
120
V
H2 (-) V 2
LOGIC
H3 (+) W 1
H3 (-) W
W 2
FRC
VH+
STBY POWER HE
OFF POWER
H1 (+)
H1 (-)
H2 (+)
H2 (-)
H3 (+)
H3 (-)
3-30