JVC KD-LH310 Administrator Guide

SCHEMATIC DIAGRAMS
CD RECEIVER
No.49843SCH
2003/05
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
KD-LH3101
KD-LH3101
KD - L H 3101
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-5,6
Area Suffix
E ---------- Continental Europe
EX -------------- Central Europe
CD-ROM No.SML200305

KD-LH3101
!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.
Safety precaution
!Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.

KD-LH3101
2-1
AB CD E F G
1
2
3
4
5
CN801
IC805
REMOCON
IC801
LCD
DRIVER
LCD
MODULE
REMOCON
KEY0 to KEY2
KEYIN
DB0 to DB7
OSC,RES,CS
RS,WR,RD
SW1
SW2
REST
SWITCH
LOAD/FEED
MOTOR
SPINDLE
MOTOR
PICK UP
CN601
SW1
SW2
REST
LOAD/FEED+
LOAD/FEED-
SPINDLE+
SPINDLE-
FOCUS+
FOCUS-
TRACKING+
TRACKING-
A,B,LD,E,F,VR
MD,LD
IC601
CD RF
IC621
D.SERVO
& DSP
IC681
CD DRIVER
VA,VB
VE,VF
MD,LD RWSEL,IOP
IC501
CPU
IC571
24bit DAC
IC572
CD LPF
IC503
J-BUS BUFF
CN501
REGC
RF,FE,TE
RFRP
SEL,TEB
RFDC
REST,SW1,SW2
LOAD/FEED+
LOAD/FEED-
SPINDLE+
SPINDLE-
TRACKING+
TRACKING-
FOCUS+
FOCUS- CDON
FMO
DMO
TRO
FOO
BUS0 to BUS3
BUCK,CCE
DSPPST
DACML
DACMC
DACMD
DACCS
DSPRST
CDRESET
B.DET,P.DET
CDMUTE,CDREQ
BUSSO,BUSSI
BUSIO,/BUSIO
BUSSCK
BUSSI/SO
BUSCLK
VOUTL
VOUTR
CD.L-CH
CD.R-CH
IC652
MP3 DEC
SDO
BCK
LRCK
DATA
BCK
LRCK
MP3DA
MP3CK
MP3STB
MP3RST
IC802
FLASH
ROM
A0 to A19
D0 to D7
RE,WE
EXROM,CS1
ROMCNT
IC803
RESET
KEYDA
DISPCE,DISPDA
DISPCK
EN801
ENCODER
VOL1,VOL2
CN802
S802 to S818
KEY
MATRIX
Block diagram
TU1
FM/AM
TUNER
IC701
CPU
IC911
E.VOLUME
FM/AM
MRC
PLLDI
PLLCK
PLLDA
PLLCE
SM
SD/ST
IC901
REGULATOR
SPK
BATTERY
EACH BLOCK
TU.L
TU.R
OUT FL
OUT RL
OUT FR
OUT RR
FL
FR
CD-L
CD-R
J121
FL+, FL-
FR+, FR-
RL+, RL-
RR+, RR-
VOLDA
VOLCLK
VOLMUTE
J1
ANT
IC951
POWER
AMP
RL
RR
FRONT
LINE OUT
REAR
LINE OUT
IC781
J-BUS
BUFF
CD
CHANGER
CH-L
CH-R
SI/SO
SCK
LPF1
LPF2
CH.L
CH.R
CN601
CD RESET
PON,PS2
CDMUTE,CDREQ
SI/SO
SCK
REMOCON
DISP SCK
DISP DATA
DISP CE,KEY
IC132
OPEAMP
IC131
SWITCH
SUB WOOFER OUT
SWL
SWR
BUSSO
BUSI/O
BUSSCK
BUSINT
CN902CN131
CN901
CN701
RST
IC912
EQ
EQCLK
EQDATA
EQLA
RDSDA
RDSSCK
ACOUTL
ACOUTR
ACINL
ACINR
LINE IN
CN141
LIN.L
LIN.R
IC51
RDS

KD-LH3101
2-2
KD-LH3101
HAB C DE FG
1
2
3
4
5
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
Rear signal
Front signal CD-changer signal
AUX IN signal
Tuner signal
CD signal Subwoofer signal
Standard schematic diagrams
Main amplifier section
To LCD & Key control section CN801
To CD servo control section CN501
IC301
IC781
TU1
IC951
IC901
R145
R144
J1
C131
C141
CN902
L1
C10
R5
R6
Q3
Q1
Q2
Q21
R21
C24
C22 R28
Q23
R4
R2
Q24
R29
Q25
R1
R51
C102
C202
R101
R201
Q101
Q201
R219
X701 X702
R985
CN601
Q750
Q754
R992
R805
R993
L753
R710
C709
Q701
R775
R767
R762
R761
R763
R760 R759
R758
R757
R756
R755
C7
R754 R739
D704
R737
R736
R735
R719
R720
R721
R722
R723
R724
R725
R726
R727
R728
R729
R731
R730
R732
R733
R795
Q795
R774
C710
L701
C711
R782
R784
R781
R783
R786
R787
R788
R925
R926
R922
R923
R921
R924
R282
R182
D702
Q902
Q901
D902
Q941
Q903
Q942
Q904
Q905
R914
CN141
IC701
R215
R115
R119
R156
C301
C303
C304
C302
Q191
R195
R194
C191
D193 C193
R155
C308
C309
C216
C215
C115
C116
R121
R122
R222
R221
R216
R116
C307
C310
C142
R141
C140
IC131
C132
C133
C134
C136
C135
Q131
Q132
Q222
Q221
Q121 Q122
R123
R124
R223
R224
J121
R147 R148
D131
R149
Q133
C252
C251
C151
C152
R301
R302
IC281
R305
R303
R304
C281
C283
C282
C288
C289
C287
C290
R291
R292
R295
R293
R294
C284
R158
R157
CN131
C971
C294
C952
C953
C954
R951
C961
D951
R965
R964
R129
R229
R111
R211
Q951
C962
C963
C964
C965
C966
C967
C968
C901
D901
D904
C913
R910
S701
Q703
CN901
R794
R793
R984
R983
R982
R953
L702
D703
C970
C969
IC912
C370
C369
C368
C367
C366
C365
C364
C363
C362
C361
C352
C351
C124
C920
C270
C269
C268
C267
C265
C275
C264
R990
C210
C110
C263
R987
R991
R988
C224
R986
C272
C271
C254
C255
C930
C929
C917
IC911
R718
C261C161
R261R161
C204
C104
D991
R997
L922
C973
C972
IC703
IC51
D1
D2
C3
C4
D719
C2
C1
C101 C201
C6
D3
R10
R8
R7
R9
R3
Q22
R22
R23
R25
R27
R24
R26
C23 C25
C21
C725
C724
C27
Q27Q26
C26
C57 C56
C55 C54
X51
R54
R52
R53
C53 C52 C51
R102 R202
C103
C203
R103
R203
D992
D711 D712 D713 D714 D715 D716
Q753 Q752
Q751
C755
R707
C753 C752
R712 R715 R716
R717
C751
R708
R709
C706 C705 C704 C703
R713
R714
C702 C701
IC702
R776
R777
D701
C713
C714
R711
R184
R751 R750 R749 R747 R746 R745 R744 R743 R742 R741 R740 R734
BZ795 C795
C708 C707
R778
C712
R790 R789
R785
C781
IC921
C921
C923 C922
R927
L921
D921
C181
R181R281
R901R902
C902
C903
R903
R904
C905 C904 C906 R906 C909 C910
R748
R905
C907 C908
D903 R907
R996
R909 R908
C941 C942 D941 D942
R915
R917 R916
D906
C924
C914
R994 R963 R962 R961
CN701
R117 R118
R217
R191
R192
R193 R196
R197
R218
D192 C194
C192
R113 R114
R213 R214
IC132
R139R138
C138
C139
R140
R142 R143
R137
R135 R134
R131R132R133
R136
C137
D121 D221
R125 R126 R226 R225
C123 C122
R146
C143
S703
C144
C218 C217C117
C118
C991
R799
R30
R952
C951
C955
C956C957C958C959
R112 R228
L901
D905
R912
R911
C911
C912
R913
R773
R779 R780
R791 R792
Q702
R798 R797
D718
C717
S702
R981
C715 C716
R11
R928
R128 R212
R989
C125
R929
C262C166C162
D720
R919 R918
D717
C120
R127
C127 C126
R165 C165
C145
R183
C974
QAM0464-001
BA3220FV
HD74HC126FP
LA47504
HA13164A
15k
5.6k
QNB0100-002
10/16
0.082
QNZ0095-001
10u
0.047
22
22
2SB815
2SB815
UN2211
2SC2412K
470
0.01
0.1 47k
UN2211
39k 27
2SD601A
4.7k
UN2111
47k
1k
4.7/25
4.7/25
2SD601A 2SD601A
1k
QGB2027M4-22S
UN2211
UN2211
0
47K
0
47u
10M
470P
UN2213
2.2K
10k
47k
47k
47k
47k 1k
1k
1k
1k
1k
100/10
1k 1k
1SS355
3.9k
3.9k
3.9k
4.7k
4.7k
10k
1k
1k
1k
1k
1k
1k
1k
10k 270
10k 270
1k
3.3k
UN2211
47k
0.047
47u
0.1
100k
100
22k
47k
100k
330
100
180
47k
22
22
22
22
0R0
0R0
1SS355
UN2211
UN2111
CRS03
UN2111
2SB709A
UN2111
2SD601A
UN2211
10k
QGA2006F1-04
0
4.7/25
47/16
0.01
4.7/25
2SD601A
390
12k
1/50
1SS355 0.047
0
4.7/25
4.7/25
1
1
1
1
820
820
820
820
10k
10k
100/10
100/10
2.2/50
0 0.0068
BU4066BCFV
0.033
0.027
0.027
0.012
0.0056
UN2211
UN2211
2SD1048
2SD1048
2SD1048 2SD1048
180
180
180
180
QNN0490-001
820 180
MA152WK
4.7k
2SC2412K
4.7/25
4.7/25
4.7/25
4.7/25
24k
24k
BA3220FV
150k
33k
33k
4.7/25
47/16
4.7/25
4.7/25
4.7/25
100/10
100/10
24k
24k
150k
33k
33k
0.01
0
0
QGA2006C1-004
0.001
100/10
0.22
100/16
22/16
1K
100P
1SS355
0
0
0R0
0R0
0R0
0R0
UN2211
100P
100P
100P
100P
100P
100P
100P
3300/16
1N5404-TU-15
CRS03
0.1
1k
QSW0451-001
UN2211
QNZ0112-001
QMFZ047-150-T
47k
47k
-
47k
10k
47u
1SS355
2.2/50
2.2/50
M62449FP-X
0.0027
0.0018
0.0068
0.0047
0.015
0.012
0.039
0.027
0.1
0.082
10/16
10/16
1/50
4.7/25
0.0027
0.0018
0.0068
0.0047
0.015
0.012
0.039
47K
1/50
1/50
0.027
47K
47K
47k
1/50
47k
0.1
0.082
10/16
10/16
10/16
0.047
1/50
1/50
0.047
TDA7404D-X
1/50
1k
0.0470.047
47k47k
1/50
1/50
0R0
4.7U
0.01
0.001
SAA6579T
1SS355
1SS355
47/16
47/16
SML-310LT
0.01
0.047
100/10
MA152WK
3.3K
4.7k
47k
47k
10
2SC2412K
10k
10k
2.2k
39k
10k
47k
0.0047 330P
0.47/50
100/6.3
220/10
0.1/50
UN2111UN2111
0.1
0.01 47/6.3
47P 82P
QAX0263-001Z
2.2k
1k
100
560P 0.022 2.2/50
820P
820P
4.7k
4.7k
UDZS6.2B UDZS6.2B UDZS6.2B UDZS6.2B UDZS6.2B UDZS6.2B
QAX0617-001Z QAX0401-001
UN2211 UN2213 UN2211
0.01
1k
0.01 0.01
1k 1k 2.2K 1k
0.01
820
47k
22P 27P 27P 8P
1k
47k
220/10 0.1
IC-PST9333U
2.2k
47k
1SS355
47/6.3
0.01
10K
0R0
0 1k 1k 1k 2.2k 2.2k 2.2k 2.2k 1k 1k 1k 1k
QAN0023-001Z 1/50
220/10 0.01
6.8k
-
47k 22k
10k
0.047
NJM2360M
220/10
100/16
2700P
4.7k
150u
CRS03
0.047
100k100k
9.1k4.7k
22/16
22/16
5.6k
1k
100/10 0.01 0.1
47k
0.1
10/16
1k
10k
0.01
220/10
CRS03 4.7k
22K
18k 6.8k
47/16
100/6.3
MTZ11B 1SS355
47k
47k
1k
MA152WA
0.047
10/16
1K
2.2K 2.2K 2.2K
QNZ0605-001
47k
180k
22k
1k
270k
1SS355 0.22/50
22/16
47k 47k
47k 47k
NJM4565V
10k10k
10/16
2.2/50
100k
47k
100k
100k
1M 1M
1M1M47k
47k
47/16
MA152WA MA152WA
10K 10K 10K 10K
100P
0.047
47k
0.047
QSQ1A11-V06Z
100P
330P
330P330P
330P
0
0
27k
22/16
4.7/50
0.10.10.10.1
QQR0703-001
CRS03
2.2k
2.2k
0.1
2.2/50
100k
47k
6.8k 6.8k
47k 22K
UN2213
560 560
SML-310LT
100P
QSW0451-001
1k
220/10
0.047
10k
27k
1K
2.2/50
47k
UDZS8.2B
2.2K 2.2K
SML-310LT
47/16
120k
0.047 100/10
470
1
47/16
0R0
0.01
SM
FL+
CD.L
FM/AM
TU.L
SQ
RDSDA
RDSSCK
CD8V
CD.L
CD.R
CDREQ
PS
PON
BUSSI/SO
BUSCLK
VDD
DISPCK
DISPDA
DISPCE
VDD5V
LEVEL
ACC5V
A.GND
VOLMUTE
OPEN
LPF2
LPF1
SUBM
VOLCK
VOLDA
MUTE
14V
DETACH
MRC
SQ
SM
BUSI/O
BUSSCK
BUSSO
SI/SO
BUZZER
BUZZER
A.GND
CH.R
CH.L
ILL
TEL
MUTE
CD.R
CH.L
CH.R
LPF2
RR-
RL-
LPF1
KEY
RL
RR
FR+
ON5V
9V
FR-
FL-
RL+
DETACH
FR
VDD5V
FL
FL
RL
FR
RR
RR+
TU.R
LIN.R
LIN.G
LIN.L
CF MRC PLLDI PLLCK PLLDA PLLCE
AFCK SEEK
CD8V
OPEN
CDREQ
KEY
LIN.R
ANT
BUSINT RDSSCK
PS
LIN.G
VDD
LIN.L
SI/SO
ACC5V
PON
SD/ST
ILL TEL
PLLDI PLLCK PLLDA PLLCE FM/AM
SEEK AFCK
SD/ST
SCK
PS
BUSSO
EQCLK
BUSSI/SO
SCK
SI/SO
BUSINT BUSCLK
14V
ACC5V
PON ANT
DIM
DIM
VOLDA
LEVEL
EQDATA EQLA FR-
RDSDA
VOLCK VOLMUTE
RL+ FL+ RL- FR+ FL-
CF
EQCLK EQLA EQDATA
RR+
RR-

KD-LH3101
2-3
AB CD E F G
1
2
3
4
5
CD signal
CD servo control section
To Main amplifier section CN601
IC621
IC652
IC502
R581
CN501
Q601
R615
L501
IC501
Q501
R616
R601
R602
R603
R604
C603
R608
C604
C610
R610R611R612R614
R613
C611
C605
R632
R633
R634
C631
C632
C636
C637
C630
C627
C626
C625
R629
C629
C628
R626
R625
R624
R628
C614
C643
L622
L623
CN502
R548
IC504
R523
R522
R521
R520
R519
R518
R517
R543
R509
R544
R511
R540
R512
C613
R620
R515
R513
R516
R541
R514
C508
R525
X501
R510
R542
L651
R677
C667
C666
C663
C656
R668
R568
R674
R675
C664
C665
R689
R690
C668
R651
R685
C507
R687
R564
C658
C657
R683
R539
R545
C659
C660
C669
X571
R570
R582
C585
C586
Q572
Q571
R583
R585
R584
R586
C587
C588
C589
C590
R549
R550
C511
C513
C512
R561
R563 R562
R556
R553
R569
C685
C686
C551
C687
L502
Q502
IC681
R681
R682
R686
R688
C612
Q681
C682
C684
C690
C683
C688
D506
R533
IC601
B681
R508
L653
IC572
D505 D504 D503 D502
D501
C644
C506
R502 R503
C601 C602
R534
R605 R606
R607
C609 C608 R609
C606 C607
R630 R631
C633 C635 C634
R635 R636 R637
C638 C639
C624
C623 R627
R621 R622 R623
C622
C621
R638 R639 R640 R641 R642
C645 C646
C640 C641 C642
L621
C501
R546 R547
IC503
IC651
R532
R504 R505
R535 R536 R537 R538
R506 R507
R526
R528 R531 R530
C514
C672
TH501
C510
C505 C504
C503
C509
C502
C651 C652
C598
C653
C673 C671
C662
L652
R527
C654
R654
R529
B682
C661
C655
R574
C571 C572 C574 C575 C576 C573
L571 L572
R572 R573
C578
C579
C577
C580
IC571
C582 C581
C583C584
R588 R587
R592R590
R591 R589 C591
C592
C593
R501
R560
R552 R558 R559 R551
R555
R557 R554
C594
CN601
D682
R684
R524
R691
C596 C595 R593
C689
C597
TC94A14FA
TC94A20F-006
BR24C01AFV-W
20k
QGB2027L1-22X
2SB1132/QR/
150
47u
TMP91CW12AF
UN2111
10k
82k
82k
330k
330k
100/6.3 820
0.01
5p
10010k2k15k
1k
68p
0.0068
0
0
0
470p
470p
0.047
0.047
0.033
0.01
0.0027
0.01
10k
0.033
47/6.3
470k
47k
5.6k
2.2M
0.01
0.01
47u
47u
QGF0501F1-08X
8.2k
NJU7241F33
100
100
100
100
100
100
100
100
47k
100
1k
47k
47k
0.01
47k
1k
1k
100
47k
0.01
100k
NAX0385-001X
0
47k
47u
1M
0.01
100p
0.1
0.1
0R0
1k
330
330
0.027
0.33
12k
33k
47/6.3
100k
6.8k
0.01
6.8k
100
0.1
0.1
6.8k
47k
47k
0.1
100p
0.01
1k
20k
4.7/35
4.7/35
UN2211
UN2111
12k
30k
12k
30k
120p
120p
4.7/35
4.7/35
4.7k
4.7k
0.1
0.01
100/6.3
100k
6.8k 3.9k
0
18k
1k
-
-
0.01
-
47u
UN2211
BA5825FP
6.8k
2.2k
12k
1.5k
0.01
2SB1184/QR/
10/16
47/16
10/6.3
0.1
-
CRS03-W
100
TA2157FN
0
47k
47u
NJM4565V
1SS355 1SS355 1SS355 1SS355
1SS355
0.33
0.01
1k 1k
47/6.3
0.01
100
22 22
82k
0.1 0.1 56k
47/6.3
0.01
100 100
0.047 0.047 0.047
100 100
1M
0.01
47/6.3
0.015
47p 10k
47
47 47
47/6.3
0.01
4.7k 4.7k 4.7k 4.7k 10k
47/6.3 0.01
0.01 47/6.3 100p
47u
0.01
270 270
HD74HCT126T
NJU7241F25
1k
100 100
100 100 100 100
47k 47k
47k
47k 47k 47k
0.001
0.1
NAD0022-103X
0.01
22p 27p
100/6.3
0.01
0.01
47/6.3
0.01
1000p
47/6.3
100p
47/6.3 100p
47u
47k 0.1
47
47k
OPEN
0.01
0.01
47
NAX0375-001X
10p 10p 10/16 47/6.3 0.1 0.1
47u 47u
47k 47k
47/6.3 10/16
0.1
0.1
PCM1716E
100p 100p
820p820p
47k 47k
10k10k
10k 10k
47/6.3
47/6.3
47/16
1k
100
100k 100k 0 100k
100
100k
33k
1000p
QGF0527F2-22W
1SR154-400
4.3k
100
15k
100p 0.047
4.7
47/16
1000p
DISCSEL
VREF
VA
VF
VE
VB
MD
LD
RWSEL
IOP
MD
SEL
TEB
RFGC
TE
RFRP
RFDC
FE
RF
DSPRST
BUS3
BUS2
BUS1
BUS0
BUCK
CCE
CDRESET
LD
IOP
BUS3
BUS2
BUS1
BUS0
BUCK
CCE
DSPRST
MP3CK
MP3DA
B.DET
DMO
CDON
SPINDLE-
SPINDLE+
LOAD/FEED+
LOAD/FEED-
TRO
FOO
FOCUS+
FOCUS-
TRACKING+
TRACKING-
SW1
FOCUS-
CDON
ON5V
CD.L-CH
CD.R-CH
9V
CDON
BUSSO
BUSSI
BUSCLK
BUSSCK
BUSIO
/BUSIO
BUSSI/SO
BUSSI
AGNDAGND
VB
VA
CD8V
VF
CD.L-CH
CD.R-CH
VE
9V
ON5V
CDMUTE
CDREQ
P.DET
B.DET
CDRESET
TRACKING+
FOCUS+
SPINDLE+
TRACKING-
REST
SPINDLE-
LOAD/FEED+
LOAD/FEED-
SW1
SW2
BUSSO
BUSSCK
BOOT
RESET
DISCSEL
FE
RFRP RFGC
RF
SEL TEB RFDC
TE
FOO TRO FMO DMO
VREF
BCK LRCK DATA
CDREQ CDMUTE BUSSI BUSSO BUSSCK
CDON
8VDET
MP3STB
RWSEL
MP3RST
DACCS DACMD DACMC DACML
BOOT
SW2 REST RESET
/BUSIO
BUSIO
MP3RST MP3DA MP3CK DATA BCK LRCK
MP3STB
SDO
LRCK SDO BCK
DACML DACMC DACMD DACCS
DSPRST
LD/FE
LOAD
P.DET
8VDET

KD-LH3101
2-4
KD-LH3101
HAB C DE FG
1
2
3
4
5
To Main amplifier section CN701
LCD & Key control section
X801
R876
CN802
IC801
EN801
S815 S814 S813 S812 S811 S810
S818
R806
C804
C835
S816S817 S809 S808S807
S806 S805
IC805
D801
R892
D451D452D453
C809
C808
C807
R868
R869
R881
R886 R885
R882 R883R884
R889 R888 R887
R890R891
Q802
Q801
CN801
L801
R877
R871
R893
R807
R829
R830
R841
R842
R843
Q804
C831
R809
R808
R810
R811
R812
R813
R814
R815
R816
R820
R822
R823
R821
R846
R847
R853
R854
R855
R856
R857
R858
R859
R860
R861
R862
R863
R864
C806
C810
C805
IC803
C820
C821
C822
C823
C824
R867
C817
C816
C818
R844
R845
Q803
R894
R477
R478
R476
R475
R474
R473
R472
R471
R848
C833C832
S804
R880
S803
R879
S802
R878
R899
D812
T1-10
T1-9 T1-8 T1-7 T1-6 T1-5 T1-4 T1-3 T1-2 T1-1
T2-10 T2-9 T2-8 T2-7 T2-6 T2-5 T2-4 T2-3 T2-2 T2-1
R896
IC802
R875
Q428
D405 D418 D419
R417 R418 R452 R453 R454 R455 R411 R412 R409 R410
D407 D406D408
D422 D421 D420
R407 R408 R419 R420 R456 R457 R415 R416 R405 R406 R413 R414
D401
D409D410
D417
D411D412
D414
D413
D415 D403 D416
D402
R403
Q403 Q402 Q401
R401
Q404 Q405 Q407
IC804
R479
Q408
Q409
D423 D424 D425
Q414
Q415
D427 D428 D426
Q416 Q410
Q411 Q417
Q418
Q419
R430
Q412
Q413
R431 R432 R438 R436 R437 R433 R434 R435
Q420
Q421
R421 R422 R423 R429 R427 R428 R424 R425 R426
D430 D431 D429
Q422
Q423
Q424
Q425
R439 R440 R441 R447 R445 R446 R442 R443 R444
C459 C458 C457 C456 C455 C454 C453 C452 C451
R870
C828 C826 C827
R872
R874
R897
C829
R402 R404
R801 R803 R804
D436
R824 R825 R826 R835 R836 R837 R838 R839 R827 R828 R831 R832 R833
R834
R817 R818 R819 TH801
R873
R849 R850 R851 R852
C825
C801 C812
C813
C802
C811
C815 C814
D803
R866
R865
C819
D811 D810 D809
D808 D804 D805 D806 D807
R895
R898
D435
Q406
NAX0586-001X
QGF0523F1-40W
MN102H60KCG
QSW0976-001
47k
470p
0.1
RPM6938-SV4
MA152WK
470k
NSCM315CNSCM315CNSCM315C
4.7/6.3
4.7/6.3
4.7/6.3
47k
47k
560
270 300
390 300270
820 560 390
560820
2SB709A
2SB709A
NNZ0087-001
47u
470
330
330
47k
47k
47k
1.5k
1.5k
1.5k
UN2111
0.1/35
1K
1K
1K
1K
1K
1K
1K
1K
1K
330
1k
1K
8.2k
10k
47k
330
330
330
330
330
330
330
330
330
330
330
330
0.047
0.047
470P
IC-PST3424U-X
0.047
0.047
0.047
0.047
0.047
2.2M
0.047
0.47
0.047
47k
47k
2SD601A
330
330
330
330
330
330
330
330
330
1k
30p30p
390 270 300
0
UDZS6.2B
47K
LH28F160BJHET92
2SD601A
SML-310LT SML-310LT SML-310LT
470 470 820 820 820 820 680 680 680 680
SML-310LT SML-310LTSML-310LT
SML-310LT SML-310LT SML-310LT
470 470
470 470 680 680 820 820 820 820 470 470
MA152WK
SML-310LTSML-310LT
SML-310LT
SML-310LTSML-310LT
SML310BAT/JKL-X
SML310BAT/JKL-X
SML-310LT SML-310LT SML-310LT
SML-310LT
1.2k
UN2211 UN2211 UN2211
1k
UN2211 UN2211 UN2211
NJU7241F33-X
1K
2SD601A
2SD601A UDZS6.2B
UDZS6.2B UDZS6.2B
2SD601A
2SD601A
UDZS6.2B UDZS6.2B UDZS6.2B
2SD601A 2SD601A
2SD601A 2SD601A
2SD601A
2SD601A
390
2SD601A
2SD601A
390 390 390 390 390 560 560 560
2SD601A
2SD601A
390 390 390 390 390 390 560 560 560
UDZS6.2B UDZS6.2B UDZS6.2B
2SD601A
2SD601A
2SD601A
2SD601A
390 390 390 390 390 390 560 560 560
0.047 0.047 0.047 0.047 0.047 0.047 0.047 0.047 0.047
470k
10/6.3 10/6.3 0.047
47k
100k
330
4.7/6.3
1k 1.2k
330 330 330
NSPB310A
100k 100k 100k
10k 10k 10k
1k 1k 1k 1k 10k 10k 10k
10k
1K
1K 1K
NAD0022-103X
47k
330 330 330 330
10/6.3
10/6.3
4.7/6.3
10/6.3
0.047
0.047
0.47
0.47
1SS355
2.2k
47k
0.047
UDZS6.2B UDZS6.2B UDZS6.2B
UDZS6.2B UDZS6.2B UDZS6.2B UDZS6.2B UDZS6.2B
330
0
NSPB310A
UN2211
**REM
SBRST
SBT
SBD
PS2
15V
10V
ACC5V
VDD5V
DISPCK
DISPDA
DISPCE
KEYDA
ANA
RST
OSC
KEY1
KEY2
10V
KEY0
KEYIN
PS2
VDD5V
DB0
ANA
DB1
DISPCE
PSAVE2
KEYIN
RD
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
DB2
DB3
DB4
DB5
DB6
DB7
D0
D1
D2
D3
D4
D5
D6
15V
OSC
RES
CS
RS
WR
RD
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
D7
PSAVE2
EXROM
**REM
TRIMLED
R3 G3 B3 R2 G2 B2
TRIMLED LED6 LED5 LED0 LED2 LED1 LED3 LED4
CL1 CL2 CL3
B2 G2 R2
CL1 CL2 CL3
G3
CL1 CL2 CL3
R3 B3
VOL2 VOL1
CS1
ACC5V
KEY2 KEY1 KEY0
CL1 CL2 CL3
VOL1 VOL2
RES LED6 LED5 LED4 RE
DISPCK DISPDA
KEYDA
SBD SBT
RST
A2 A3 A4 A5 A6 A7 A8
A18 A19
A9
A10 A11 A12 A13 A14
RE CS1
A15 RST A16A17
A0 D7 A0 D6 A1 D5 A2 D4 A3 D3
LED3
D2
LED0
D1
CS RS WR
SBRST
LED1
D0 A1
LED2
ROMCONT
EXROM

KD-LH3101
2-5
AB CD E F G
1
2
3
4
5
BZ795
C3
C4
C6
C7
C9
C21
C24
C27
C51
C56
C102
C103
D719
CN701
C969
C970
R965
S703
CN141
C162
C166
C131
C132
C133
C134
C135
C136
C137
C138
C139
C140
C141
C142
C262
C117
C118
C755
L753
C181
C191
C192
C194
C202
C203
CN901
R989
R994
R987 R988 R990 R805
C217 C218
R985
R712
R986
R718
R992
R993
D718 D717
PP1
C718
C719
C720
C702
C707
C708
C710
C713
C781
C795
C901
C902
C903
C905
C906
C907
C908
C909
C910
C911
C912
C913
C914
C921
C923
C941
C942
C951
C953
C954 C955
C956 C957
C958
C959
C961
C962
C963
C964
C965 C966 C967 C968
CN131
CN601
R996
CN902
D3
D131
IC911
IC912
D701
D702
IC301
D901
D902
D903
D904
D905
D906
D951
D961 D962 D963 D964 D965 D966
D967
D968
IC51
IC131 IC132
IC281
C104
C204
C110
IC701
IC702
IC703
IC781
IC901
IC921
IC951
J1
J121
L1
C210
C124
C224
C120
L701
L901
L921
Q1Q2
Q3
Q21
Q22
Q24
Q25
Q26
Q27
Q101
Q121
Q122
Q131
Q132
Q133
Q191
Q201
Q221
Q222
C126
Q701
Q902
Q903
Q904 Q905
Q941
Q942
Q951
R27
R28
R29
R51
R52
R101
R102
R103
R116
R121
R122
R123
R124
R125 R126
R132R135
R145
R918
R919
R929
C125
C252
R181
R182
R197
R201
R202
R203
R216
R221
R222
R223
R224
R225
R226
CN132
C251
C151
C152
C283
C303
C282
R281
R282
C281
C302
C301
C294
C307
C310
C287
C290
C308
C309
C288
C289
C215 C216
C115
C116
R219R215
R119
R115
R113
R114
R213
R214
R217
R218
R117
R118
R31
R707
R711
R963 R713
R714
R715 R716
R717
R962
R719
R720
R961
R722
R723
R724
R725
R726
R727
R728
R729
R730
R731
R732
R733
R734
C352
R739
R740 R741
R742
R747 R748 R749 R750 R751
C254
C917
R754
R755
R756
R757
R758
R759
C270 C269 C268 C267 C266 C265 C264 C263
R773
R774
R775
R776
R777
R778 R779 R780
R785
R791 R792
R901 R902 R904
R905
R906
R908 R909
R910
R911
R912
R913
R914 R915
R916
R917
R951
R952
R953
R981
S701
S702
TU1
X51
C272
X701
X702
C271
C370 C369 C368 C367 C366 C365 C364 C363 C362
C361
C255
C930
C351
C920
C929
L702
C715
CN702
R30
BZ795
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C21
C22
C23
C25
C26
C27
C51
C52
C53
C54C55
C56
C57
C101
C102
CN701
D720
C969
C970
R964
S703
CN141
C162
C166
C122
C123
C131
C137
C138
C139
C142
C143 C144
C262
C261
C165
C161
R261
R165
R161
C991
C751
C752
C753
Q750
C191
C192
C193
C194
C201
C202
CN901
D992
R721
Q751
Q752
Q753
Q754
R991
R997
R928
R11
D703
D704
R129 R128
C718
C719
R228
R229
C701
C702
C703C704
C705 C706
C708
C709
C711
C712
C713
C714
C795
C901
C902 C903
C904
C905
C908
C910
C912
C914
C921
C922
C923
C941
C942
C951
C952
C953
C954
C955
CN131
CN601
CN902
D1
D2
D121
D192
D193
D221
D711 D712 D713 D714 D715 D716
D901
D921
D941
D942
C104 C204
C110
IC901
IC951
J1
J121
C210
C124 C224
C120
L901
Q23
R183
R184
C126 C127
Q702 Q703
Q795
Q901
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R21 R22
R23
R24
R25
R26
R53
R54
R111 R112
R131
R133
R134
R136
R137
R138
R139
R140 R141
R142 R143
R144 R146
R147
R148
R149
C125 R127
C252
R191
R192
R193
R194 R195
R196
R211
R212
CN132
D991
C251
C151
C152
C283
C303
C282
C401
C302
C301
C294 C284
C304
R301
R302
R305
R291
R292
R295
R303
R304
R293
R294
C307
C310
C287
C290
C308
C309
C288
C289
R995
C950
L922
R156 R155 R157 R158
R708
R709
R710
R735 R736 R737
C352
R743
R744
R745 R746
C254
R760 R761 R762 R763
R767
R781
R782
R783
R784
R786
R787
R788 R789
R790
R793
R794
R795
R797 R798
R903
R907
R910
R921 R922 R923
R924 R925
R926 R927
R982 R983
R984
S701
S702
TU1
X51
X701
X702
C255 C930
C351
C920
C924
C925
C715
C716
C717
R999
R998
Printed circuit boards
Forward side
Main board
Reverse side
Main board

KD-LH3101
2-6
KD-LH3101
HAB C DE FG
1
2
3
4
5
C571
C572
C573
C576
C602
C605
C608
C609 C610
C611
C621
C625
C626 C627
C631
C632
C636
C637
C638
C640
C642
C643
C644
C646
C663
C664
C665
C666
C667
R678
R543
R544
R504
R505
R535 R536
R537
R538
R527
R526
R528
R539
R530
R529
R507
R506
R564
R565
R566
R571
R574
R601
R602 R603
R604
R605
R606
R607
R608
R609
R610 R611
R612
R613
R614
R615
R621
R622
R623
R624
R625 R626
R627
R628
R629
R630
R631
R632 R633 R634
R635
R636
R637
R638 R639
R640
R641
R642
R668
R674
R675
R676
R677
TH501
C614
C675
C676
R616
R524
C501
C508
C502
C503
C504
C505
C509
C510
C506
C511
C512
C513
C551
C574
C575
C577
C578
C579
C580
C581 C582
C583 C584
C585
C586
C587C588
C589
C590
C591
C592
C593
C601
C603
C604
C606
C607
C612 C613
C622
C623
C624
C628
C629
C630
C633 C634 C635
C639
C641
C645
C651
C652
C653
C654
C655
C656
C657
C658
C659
C660
C661
C671
C668
C669
R545
C672 C673
C681
C682
C683
C684
CN501
CN502
CN601
D501
D502
D503
D504
D505
D681
D682
IC502 IC503
IC504
IC571
IC572
IC601
IC621
IC651
IC652
IC681
L501
L502
L571
L572
L621
L622
L623
L651
L652 L653
Q501
Q502
Q571
Q572
Q601
Q681
R548
R547
R509
R546
R502
R503
R523
R522
R521
R520
R519
R518
R517
R532
R534
R533
R508
R531
R540
R511
R512
R515
R513
R514
R516
R541
R510
R542
R525
R549
R550
R551
R552
R553
R554
R555
R556
R557
R558
R559
R560
R561
R562
R563
R572
R573
R581 R582
R583R584
R585R586
R587
R588 R589
R590
R591
R592
R651
R689
R690
R654
C514
C507
R685R687
R681
R682
R683 R684
R686
R688
R691
X501
X571
RFDC
TEB
SEL
TE
FE
RFRP
RF
RFGC
RWSEL
VREF
BUS0
1
2
CCE
BUCK
3
X651
R501 R568 R569 R570
C662
RCH
ON5V LRCK DSEL
REQ BDET
SI/SO VDD
BUSCK
PDET
RESET
CDMUTE
DATA
BCK
9V
LCH
C647
C674
Q682
Q683
R692 R694
R693
C594
C597
B682
C521
C522 C524 C526 C528 C530 C531
C534
C535
C533
C527
C538
C539
C523 C525 C529
C536
C537
C532
C616
C687
C685C686
C688
C596
C595
R593
C598
C689
C690
C615
B681
D506
IC501
C825
D402
D403
D405
D406 D407 D408
D409
D410
D411
D412
D413
D414
D415
D416 D417
D418
D419
D420 D421 D422
D435
D436
C804
D807
D808
D811
EN801
IC805
L801
Q407 R405
R406
R409
R410
C835
R471 R472 R473 R474 R475 R476 R477 R478
R479
R804
R808
R809
R810
R811
R812
R813
R814 R815
R816
R817
R818
R819
R820 R821
R822
R823
R826
R827
R834
R837
R838
R839
R844 R845
R847
R848
R849
R853 R854 R855
R856
R857
R858
R859 R860 R861
R862
R863 R864
R871
R873
R878
R879
R884
R893
R894
S802
S803
S804
S805
S806
S807
S808
S809
S810
S811
S812
S813
S814
S815
S816
S817
S818
TH801
R452
R453
R454
R455
C451
C452
C453
C454
C456
D451
IC803
R456
C801
C802
C805
C806
C807
C808
C809
C810
C811
C812
C813
C814
C815
C816
C817
C818
C819
C820
C821
C822
C823
C824
C826
C827
C828
C829
C831
C832
C833
CN801
CN802
D401
D423
D424
D425
D426
D427
D428
D429
D430
D431
D435
D436
R457
R806
D801
D803
D804
D805
D806
D809
D810
D812
EN801
IC801
IC802
C834
IC804
IC805
Q401
Q402
Q403 Q404
Q405
Q406
Q408
Q409
Q410
Q411
Q412 Q413
Q414
Q415
Q416 Q417
Q418Q419
Q420
Q421
Q422 Q423
Q424Q425
R480
Q801
Q802
Q803
Q804
R401
R402
R403 R404
R407 R408
R411
R412
R413
R414
R415
R416
R417
R418
R419
R420
R421
R422
R423
R424
R425
R426
R427
R428
R429
R430
R431
R432
R433
R434
R435
R436
R437
R438
R439
R440
R441
R442
R443
R444 R445
R446
R447
R801
R803
R807
R824 R825
R828
R829 R830
R831
R832
R833
R835
R836
R841
R842
R843
R846
R850
R851
R852
R865
R866
R867
R868
R869
R870
R872
R874
R875R876
R877 R880
R881
R882
R883
R885
R886
R887
R888
R889
R890
R891
R892
R895
R896
X801
Q428
R897
R898
R899
T1-1
T1-2
T1-3 T1-4
T1-5
T1-6
T1-7
T1-8
T1-9
T1-10
Front board
Forward side
Front board
Mecha control board Mecha control board
Reverse side
Forward side Reverse side

KD-LH3101
< MEMO >

KD-LH3101
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49843SCH)
Printed in Japan
2003/05

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED No.49843
2003/5
CD RECEIVER
4984320036KD-LH3101
TABLE OF CONTENTS
1 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
4 Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
KD - L H 3101
Area Suffix
E ---------- Continental Europe
EX -------------- Central Europe

1-2 (No.49843)
SPECIFICATION
AUDIO
AMPLIFIER
SECTION
Maximum Power Output Front 50 W per channel
Rear 50 W per channel
Continuous Power Output (RMS) Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no
more than 0.8% total harmonic distortion.
Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no
more than 0.8% total harmonic distortion.
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz, 12 kHz
Level ±10 dB
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.0 V/20 kΩload (full scale)
Output Impedance 1 kΩ
TUNER
SECTION Frequency Range FM 87.5 MHz to 108.0 MHz
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
[FM Tuner] Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65Ω
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
[MW Tuner] Sensitivity 20 µV
Selectivity 35 dB
[LW Tuner] Sensitivity 50 µV
CD
PLAYER
SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 decoding format MPEG1/2 Audio Layer 3
Max. Bit Rate 320 Kbps
GENERAL Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W x H x D) Installation Size (approx.) 182 mm x 52 mm x 150 mm
Panel Size (approx.) 188 mm x 58 mm x 12 mm
Mass (approx.) 1.4 kg (excluding accessories)

(No.49843)1-3
SECTION 1
Precautions
1.1 Safety Precautions
!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.

1-4 (No.49843)
1.2 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.2.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(3) Handling the optical pickup
• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.
1.3 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a
time when attaching it to the connector.
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1.4 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the CD pickup unit.
• Apply solder to the short land before the flexible wire is disconnected from the connector on the CD pickup unit.
(If the flexible wire is disconnected without applying solder, the CDpickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land after connecting the flexible wire.
1M
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
Pickup
Short-circuit point
(Soldering)
Flexible wire
Pickup
Short-circuit point

(No.49843)1-5
SECTION 2
Disassembly method
2.1 Main body
2.1.1 Removing the front panel assembly
(See Fig.1)
(1) Push the detach button in the lower left part of the front
panel assembly and remove the front panel assembly.
Fig.1
2.1.2 Removing the bottom cover
(See Fig.2)
• Prior to performing the following procedure, remove the front
panel assembly as required.
(1) Turn over the main body and release the two joints a, two
joints band joint c.
CAUTION:
Do not damage the main board when releasing the joints
using a screwdriver.
Fig.2
Front panel assembly
Detach button
Bottom cover
Joint a
Joint b
Joint a
Joint b
Joint c

1-6 (No.49843)
2.1.3 Removing the front chassis assembly
(See Figs.3 and 4)
• Prior to performing the following procedures, remove the front
panel assembly and bottom cover.
(1) Remove the two screws Aon the both sides of the main
body. (See Fig.3.)
(2) Remove the two screws Bon the front side of the main
body. (See Fig.4.)
(3) Release the two joints dand two joints eon the both sides
of the main body. (See Fig.3.)
Fig.3
Fig.4
2.1.4 Removing the heat sink
(See Fig.5)
• Prior to performing the following procedure, remove the front
panel assembly as required.
(1) Remove the two screws Cand two screws Don the left
side of the main body.
Fig.5
Joint d
Joint d
Front chassis assembly
A
Joint e
Joint e
A
B
Front chassis assembly
C
DHeat sink

(No.49843)1-7
2.1.5 Removing the rear bracket
(See Fig.6)
• Prior to performing the following procedures, remove the bot-
tom cover.
(1) Remove the three screws E, screw Fand three screws G
on the back side of the main body.
(2) Remove the rear bracket.
REFERENCE:
During reassembly, before fixing the rear bracket onto
the main body, insert the SUB WOOFER cable and
STEERING REMOTE cable into the slots.
Fig.6
2.1.6 Removing the main board
(See Fig.7)
• Prior to performing the following procedures, remove the front
panel assembly, bottom cover, front chassis assembly, heat
sink and rear bracket.
(1) Remove the two screws Hattaching the main board.
(2) Disconnect the connector CN601 and remove the main
board in an upward direction.
Fig.7
G
EE
F
Rear bracket G
Insert Subwoofer and steering
cables into the slots.
Main board
H
H
CN601

1-8 (No.49843)
2.1.7 Removing the mecha control board
(See Fig.8)
• Prior to performing the following procedures, remove the front
panel assembly, bottom cover, front chassis assembly, heat
sink, rear bracket and main board.
(1) Remove the five screws Jattaching the mecha control
board.
(2) Disconnect the card wire from the mecha connector.
(3) Move the mecha control board in the direction of the arrow
to release it from the joint f.
Fig.8
2.1.8 Removing the CD mechanism assembly
(See Fig.9)
• Prior to performing the following procedure, remove the front
panel assembly, bottom cover, front chassis assembly, heat
sink, rear bracket, main board and mecha control board.
(1) Remove the three screws Kattaching the CD mechanism
assembly to the top chassis.
Fig.9
J
J
Mecha control board
Mecha
connector
Card wire
Top chassis
Joint f
K
K
CD mechanism assembly Top chassis

(No.49843)1-9
2.1.9 Removing the front board
(See Figs.10 to 12)
• Prior to performing the following procedures, remove the front
panel assembly.
(1) Remove the five screws Lattaching the rear cover on the
back side of the front panel assembly. (See Fig.10.)
(2) Release the eight joints g, remove the rear cover from the
front panel assembly. (See Fig.11.)
(3) Take out the front board. (See Fig.12.)
Fig.10
Fig.11
Fig.12
L
L
L
LFront panel assembly
Rear cover
Joint g
Joint g
Rear cover
Front panel assembly
Front board

1-10 (No.49843)
2.2 CD Mechanism section
2.2.1 Removing the top cover
(See Figs.1 and 2)
(1) Remove the four screws Aon the both side of the body.
(2) Lift the front side of the top cover and move the top cover
backward to release the two joints a.
Fig.1
Fig.2
A
A
A
Joints a
Top cover
Joints a
Top cover