Read Sony SCD-1 / SCD-777ES (serv.man4) Service Manual online
7
7
SCD-1/777ES
4-3.
BLOCK DIAGRAM – SERVO Section (2/2) –
1
6
7
5
8
DVC
PIOFS
M1
(LOADING)
SWITCH
Q508
GATE SWITCH
IC777
SWITCH
Q1652
GATE SWITCH
IC716
GATE SWITCH
IC517
GATE SWITCH
IC516
TILT
COMPARATOR
IC506
STABILIZER
DRIVE
Q501, 502
SPINDLE
ERROR AMP
IC502
SLED ERROR
AMP
IC1651, Q1651, 1653
LODING MOTOR
DRIVE
IC515
M
M3
(TILT)
TILT MOTOR
DRIVE
IC505
M
M2
(SLED)
M
19
10
9
SWITCHING
IC507
COM
CH1
CH0
A
4
5
53
26
51
58
41
38
14
60
96
97
95
4
6
7
1
11
12
DVC
IC522
SLED MOTOR
DRIVE
IC503
SLED FG SENSOR
IC008
STABILIZER
DETECT SENSOR
D002, IC009
13
TIERR
12
TIE
IC010
11
SLOUTS
S002
(SLED IN)
S001
(SLED OUT)
SERVO DIGITAL
SIGNAL PROCESSOR
IC512 (2/3)
SOUT
SDCONT
TKC
S003
(LOAD OPEN)
S004
(LOAD CLOSE)
14
15
8
10
11
1
34
33
32
31
30
29
28
19
22
23
27
13
14
15
SPCL1
MDSO
MDPO
SPGC2
SPGC1
HFG
VC
Z2
Z1
50
52
57
M7
SPINDLE
MOTOR
SPINDLE
MOTOR DRIVE
IC501
WIN2
WIN1
VIN2
VIN1
UIN2
UIN1
VH+
VH–
WOUT
VOUT
UOUT
6
FDWN
10
LDON
14
19
TILT/H
05
PISEL
LINLOAD
LOAD
LDSW1
LDSW0
TILTOUT
TIUNLK
SDPREK
SLDDLY
SLMUTE
SLDSW1
SLDSW0
STBLDTC
STBLDRV
SPCTL1
SPGC2
SPGC1
FCSDWN
SACDLDON
TILT/H
EXPANDER
IC712 (2/3)
IC712 (2/3)
TKC
HFG
RSTOUT
PWM
CPU
IC701
(2/4)
MDSO, MDPO
(Page 5)
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(Page 8)
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