Read Sony SCD-1 / SCD-777ES (serv.man4) Service Manual online
6
6
SCD-1/777ES
4-2.
BLOCK DIAGRAM – SERVO Section (1/2) –
14
17
13
12
11
3
6
CDF+
CDF–
CDT+
CDT–
DO1+
DO1–
DO2+
DO2–
15
16
16
17
18
DSDF+
DSDF–
DSDT+
DSDT–
DO4+
DO4–
DO3+
DO3–
SACD/CD
FOCUS/TRACKING
COIL DRIVE
IC504
9
26
23
20
IN1–
IN2–
MUTE1
IN4–
IN3–
MUTE2
MUTING
Q506
BUFFER
IC1503
BUFFER
IC1502
MUTING
Q507
FE GCA
IC509 (3/3)
TE GCA
IC509 (2/3)
PI
ERROR AMP
IC509 (1/3)
COMPARATOR
IC511 (1/2)
SWITCH
IC519
4
7
FE
2
TE
3
SSIDT, SSICK, SDEN
15
TIOFS
9
MIRR
DFCTB
5
PI
05
SWITCHING
IC520
COMPARATOR
IC510, 511 (2/2)
SWITCHING
IC521
REGULATOR
IC513
51
44
43
36
34
50
45
42
37
28
7
1
73
88
7
21
89
24
26
2
49
98
94
84
18
22
25
46
1
AVC
+2.5V
VRB0
VRB1
VRB2
VRB3
VRBA
VRT0
VRT1
VRT2
VRT3
VRTA
TIOFS
MIRR
DFCT
PI
TZC
TE
FE
CDDVD
TOUT
FOUT
ICDDVD
65
3
4
X2/CLKIN
ACK
BUSY
100
ERROR
RS
TRST
FON
SRVRST
ERROR
FON
21
TEAGC1
20
TEAGC2
59
SDEN
82
PLIN
79
BUSY2
89
SDACK
2
SSSD
3
SSICLK
SSIDT
SSICK
27M
SERVO
DIGITAL SIGNAL
PROCESSOR
IC512 (1/3)
EXPANDER
IC712 (1/3)
IC712 (1/3)
SDEN
CPU
IC701 (1/4)
18
IC514, 728
(Page 5)
(Page 5)
(Page 5)
(Page 5)
(Page 5)
(Page 5)
(Page 5)
(Page 5)
(Page 5)
(Page 8)
8
+3.75V
+1.25V
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