Sony SCD-XA777ES Service Manual ▷ View online
SCD-XA777ES
36
36
5-6.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
49
50
48
53
51
52
70
69
68
47
60
30
46
67
64
65
66
67
44
45
68
69
56
32
31
65
66
39, 40
41
–
54
12, 13, 21, 24,
25, 27, 28, 35
3
–
11, 14
–
20, 22, 23,
26, 29
–
34, 36, 37
FL1001
FLUORESCENT
INDICATOR
TUBE
GRID DRIVE
Q1001, 1002
SEGMENT DRIVE
Q1003 – 1010
LED DRIVE
Q1021
LED DRIVE
Q1022
S1005 (2/2)
SACD/CD
S1007 (2/2)
MULTI/2CH
LED DRIVE
Q1023
D1003
LED DRIVE
Q1024
D1004
N
X
S1005 (1/2), 1006,
S1007 (1/2), 1008
S1001 – 1004,
RY1001 (2/2)
ROTARY
ENCODER
RY1001 (1/2)
AMS
RY1001 (1/2)
L
l
REMOTE CONTROL
RECEIVER
IC1003
OSC
C1004,
R1034
X1001
8MHz
Q
DISPLAY CONTROLLER
IC1001
SIN
SOUT
ACK
REQ
REQ
RESET
SCK
DA
CP
CS
CS
DA
CP
CS
CS
RESET-OUT
LED (SACD)
LED (D-OUT)
LED (PLAY)
LED (PAUSE)
KEY0
KEY1
JOG A
JOG B
JOG B
SIRCS
XTAL
EXTAL
FL DRIVER
IC1002
RESET
OSC0
OSC1
1P
–
9P, 12P
–
18P, 20P, 21P,
24P, 27P
–
32P, 34P, 35P
10P, 11P, 19P, 22P,
23P, 25P, 26P, 33P
3G
–
16G
1G, 2G
IFSO0
SIN1
IFSCO
IFBUSY
XIFCS
XFRRST
(Page 33)
42 TEST
BP
(TEST MODE)
RECT
D451 – 454
–31V REGULATOR
Q451
F1
F2
F2
FL –31V
RECT
D445 – 458
+12V REGULATOR
IC451
M+12V
MOTOR DRIVER
(IC512) B+
+5V
MOTOR/COIL
DRIVER (IC502)
B+
+5V REGULATOR
IC504
RECT
D459 – 462
+5V REGULATOR
IC452
+5V REGULATOR
IC453
D+5V
A+5V
RECT
D463 – 466
+3.3V REGULATOR
IC454
+3.3V REGULATOR
IC455
D+3.3V
A+3.3V
THP453
THP452
THP450
RECT
D405 – 408
+3.3V
+5V REGULATOR
IC403
+2.5V
DSO DECODER
(IC801) B+
+2.5V REGULATOR
IC702
+3.3V REGULATOR
IC151
+5V
+3.3V
+3.3V REGULATOR
IC1151
+5V
+3.3V
+3.3V REGULATOR
IC2151
+5V
+3.3V REGULATOR
IC301
DIGITAL FILTER,
CURRENT PULSE
DAC (IC101, 201)
DAC (IC101, 201)
B+
DIGITAL FILTER,
CURRENT PULSE
DAC (IC1101, 1201)
B+
DIGITAL FILTER,
CURRENT PULSE
DAC (IC2101, 2201)
B+
+3.3V
DATA SELECT/CLOCK CIRCUIT
B+
D411
RECT
D401, 402
+12V REGULATOR
IC401, Q401, 402, 405
RECT
D403, 404
–12V REGULATOR
IC402, Q403, 404, 406
+12V
HEADPHONE AMP
(IC371) B+
+12V
AUDIO CIRCUIT
B+
–12V
HEADPHONE AMP
(IC371) B–
–12V
AUDIO CIRCUIT
B–
LINE FILTER
T491
LINE FILTER
T491
S481
POWER
AC IN
J491
T902
POWER
TRANSFORMER
(FOR DIGITAL)
T901
POWER
TRANSFORMER
(FOR AUDIO)
FR451
FR391
FR392
1
3
SCD-XA777ES
37
37
5-7.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
• Main board is multi-layer printed board.
However, the patterns of intermediate-layer have not been
included in diagram.
included in diagram.
• Indication of transistor
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY (ANALOG OUT)
(
no mark : CD PLAY (ANALOG OUT)
(
) : SACD PLAY
〈〈
〉〉
: CD PLAY (DIGITAL OUT)
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: SACD PLAY
c
: CD PLAY (ANALOG OUT)
I
: CD PLAY (DIGITAL OUT)
C
B
These are omitted.
E
Q
• Circuit Boards Location
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
A-POWER board
D.OUT board
MOTHER board
AC board
MAIN board
AC SW board
R.CNTL board
HP board
JOG board
KEY board
PANEL board
D-POWER board
RF board
AUDIO C/SW board
AUDIO SURR board
AUDIO FRONT board
SWITCH board
LOADING MOTOR board
not supplied
SCD-XA777ES
38
38
A
B
C
E
B
C
E
B
C
E
B
C
E
IC081
IC001
IC004
SWITCH BOARD
LOADING MOTOR BOARD
1
5
OUT
R
OFF
C001
S002
(LOADING OUT)
OFF
r
IN
S001
(LOADING IN)
CN001
M1
(LOADING)
1-641-765-
13
(13)
1-641-764-
13
(13)
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C
D
E
F
G
H
I
J
K
M
(
)
5-8.
PRINTED WIRING BOARDS – LOADING MOTOR/RF/SWITCH Boards –
•
See page 37 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D001
B-7
D002
B-5
IC001
E-5
IC004
G-4
IC081
C-3
Q001
C-5
Q002
C-4
Q003
C-4
Q005
B-5
(Page 40)
SCD-XA777ES
39
39
5-9.
SCHEMATIC DIAGRAM – LOADING MOTOR/RF/SWITCH Boards –
•
See page 68 for Waveforms.
•
See page 70 for IC Block Diagram.
(Page
46)
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
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