Page 1
SCHEMATIC DIAGRAMS
CD CHANGER
CH-X550
CD-ROM No.SML200301
CH-X550
Contents
Block diagrams
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-4
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
Area Suffix
E ------- Continental Europe
No.49787SCH
2003/01
Page 2
Safety precaution
!
!
Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.
Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.
Page 3
Block Diagram
CH-X550
TC9490FA
5
Data
slicer
TA2147F-X
Tracking actuator
Spindle motor
Feed motor
Feed motor
Focus actuator
4
RF amp. AGC amp.
servo
signal
interface
Focus
eror
amp.
Tracking
error
amp.
Focus
servo
amp.
Tracking
servo
amp.
FAN8037
3
Focus
driver
VCO
PLL
TMAX
A/D
PWM
D/A
Synchronous
signal
EFM
demodulator
CLV
servo
Digital
equalizer
auto
adjustment
Correction
circuit
RAM
Sub code
decording
Servo
control
D/A
converter
Micon
interface
LPF LPF Mute Audio output
Tracking
driver
Feed
driver
2
Spindle
driver
Mecha.detect
switch
Eject switch
Microprocessor
control
Positioning
motor driver
Bus
buffer
Tray motor
driver
J-BUS
1
ABC DEFGH
2-1
Page 4
CH-X550
CH-X550
Standard schematic diagrams
Main circuit 1/2
5
4
3
2
1
SIGNAL
ABC DEFGH
2-2
Page 5
CH-X550
Main circuit 2/2
5
4
3
2
1
SIGNAL
ABC DEFGH
2-3
Page 6
Printed circuit boards
CH-X550
CH-X550
Main board(Forward side)
F941
R941
Q941
C945
5
4
R942
C942
R943
D941
Q942
C944
C943
S601
Q944
Q943
C912
R912
R913
C983
D912
R911
C914
C913
Q922
R923
C946
Q911
D913
C915
Q921
D921
3
CN504
C609
Q602
L901
R627
C610
C601
C941
R981
R921
R621
R620
Q902
L601
C602
IC604
C902
D901
R904
R905
R903
R926
R924R925
C581
R619
R618
S606
R609
C901
D911
R902
R901
Q901
R655 R656
C550
D584
Q582
D583
R591
D585
R593
R590
R592
C582
C585
C605
R601
X601
R603
R604
R605
R625
R626
R617
R657R658
Q583
L522
C522
R588
R586
R587
IC581
IC602
C606
C611
C604
C603
R660
C651
C551
IC601
R602
R614
R624
R622
R623
C612
R653
R661
R651
R659
R654
R652
R612
R611
R610
IC651
C548
R534
R535
R536
R521
R522
C549
R537
C553
C552
R538
C107
IC521
C521
R523
R524
C524
C540
R544
C523
C526
C525
L524
C583
R585
R597
Q581
R583
R584
R582
R581
R599
R595
C584
R596
Q971
C101
L523
C528
R606
R607
R972
R973
Q972
R543
C207
C546
C544
C530
R525
C539
C529
C547
R954
C104
R951
D951
R971
C105
C204
C201
R205
C545
C543
R539
C542
C507
C541
R532
R517
R531
R530
R529
C538
R526
C537
R528
C536
R527
C535
C509
C531
C534
C533
R103
R102
C103
C102
R104
R101
IC101
C202
C203
R202
R203
R201
R106
C106
R107
R105
R206
C205
Q981
R982
D981
C982
R542
R541
L521
R540
X521
C503
R509
R516
IC501
R518
C508
C510
C527
R510
CN601
R204
D101
C906
R108
CN904
Q101
R208
Q201
C111
C206
R207
C505
R519
C907
C504
CN503
R507
R508
Q501
C513
C502
R514
C501
R503
R504
R505
R506
C511
C514
R512
R515
C512
R511
R513
Main board(Reverse side)
CN601
CN904
CN503
Q501
C105
C205
Q981
L521
C505
X521
C503
F941
C605
X601
C104
C547
C548
C101
C204
C545
C509
L523
C201
C551
L522
C539
L524
C529
C522
C583
Q581
C601
C901
C550
D584
D583
D585
L901
C941
L601
D911
C946
C581
C585
S606
Q941
Q942
C943
S601
D901
C912
C983
Q911
C913
C609
CN504
CN501
CN903
2
CN502
B504
1
B505 B506
B501
B503
B502
D902
L902
C952
C951
C112
R112
CN901
C1121
C9511
R1121
F901
CN902
CN902
CN901
D902
L902
C952
F901
ABC DEFGH
2-4
Page 7
< MEMO >
Page 8
CH-X550
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49787SCH)
Printed in Japan
2003/01
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