JVC KDLH-3100, KDLH-3150 Service manual
KD-LH3150,KD-LH3100
SCHEMATIC DIAGRAMS
CD RECEIVER
KD-LH3150,KD-LH3100
ARSENAL rogo
LINE in
Line output level
WARRANTY
SOUND
ATT
U
SOURCE
F
R
D
VOL
VOL
SOUND
ATT
U
SOURCE
F
R
D
VOL
VOL
KD-LH3150J
KD-LH3150C KD-LH3100J
4 V 4 V 2 V
2 YEAR 1 YEAR 1 YEAR
KD-LH3150
KD-LH3150
KD-LH3100
KD-LH3100
KD-LH3150
Area Suffix
J -------------------------- U.S.A.
C --------------------- CANADA
KD-LH3100
Area Suffix
J -------------------------- U.S.A.
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-5,6
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
No.49838SCH
2003/05
KD-LH3150,KD-LH3100
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.
Block diagram
KD-LH3150,KD-LH3100
5
SW1
SW1
SW2
VA, VB
VE,VF
MD,LD
IC601
CD RF
RWSEL,IOP
IC571
24bit DAC
VOUTL
VOUTR
IC572
CD LPF
SW2
DACML
REGC
REST
REST
SWITCH
LOAD/FEED
MOTOR
4
SPINDLE
LOAD/FEED+
LOAD/FEED-
SPINDLE+
SPINDLE-
REST,SW1,SW2
CN601
MOTOR
RF,FE,TE
RFRP
SEL,TEB
RFDC
IC621
D.S ERVO
BUS0 to BUS3
BUCK,CCE
DSPPST
BCK
LRCK
DACMC
DACMD
DACCS
DSPRST
DATA
BCK
LRCK
SDO
IC652
MP3 DEC
& DSP
IC501
CPU
BUSSO,BUSSI
BUSIO,/BUSIO
BUSSCK
MP3DA
MP3CK
MP3STB
MP3RST
CDRESET
B.DET,P.DET
CDMUTE,CDREQ
IC503
PICK UP
FOCUS+
FOCUSTRACKING+
TRACKINGA,B,LD,E,F,VR
MD,LD
LOAD/FEED+
LOAD/FEEDSPINDLE+
SPINDLETRACKING+
TRACKINGFOCUS+
FOCUS-
FMO
DMO
TRO
FOO
IC681
CDON
CD DRIVER
3
J-BUS BUFF
BUSSI/SO
BUSCLK
CD.L-CH
CD.R-CH
J1
ANT
CN501
CN601
CD RESET
PON,PS2
CDMUTE,CDREQ
FM/AM
TUNER
FM/AM
MRC
PLLDI
PLLCK
PLLDA
PLLCE
SM
SD/ST
TU1
IC701
CPU
IC912
EQCLK
EQDATA
EQLA
EQ
LPF1
LPF2
TU.L
TU.R
CD-L
CD-R
CH.L
CH.R
ACOUTL
ACOUTR
ACINL
ACINR
LIN.L
LIN.R
IC911
E.VOLUME
VOLDA
VOLCLK
VOLMUTE
IC132
OPEAMP
IC131
SWL
SWR
OUT FL
OUT RL
OUT FR
OUT RR
REGULATOR
SWITCH
FL
FR
RL
RR
KD-LH3150 J/C only
KD-LH3100 J only
IC901
EACH BLOCK
IC281,IC301
LINE AMP
IC951
POWER
AMP
CN901
SPK
BATTERY
FL+, FLFR+, FRRL+, RLRR+, RR-
J121
FRONT
LINE OUT
REAR
LINE OUT
SUB WOOFER OUT
EN801
ENCODER
VOL1,VOL2
CN802
DB0 to DB7
OSC,RES,CS
RS,WR,RD
KEY0 to KEY2
KEYIN
2
LCD
MODULE
S802 to S818
IC802
FLASH
ROM
IC801
LCD
DRIVER
A0 to A19
D0 to D7
RE,WE
EXROM,CS1
ROMCNT
KEYDA
DISPCE,DISPDA
DISPCK
RST
KEY
IC803
RESET
IC805
REMOCON
REMOCON
CN801
CN701
SI/SO
SCK
REMOCON
DISP SCK
DISP DATA
DISP CE,KEY
BUSSO
BUSI/O
BUSSCK
BUSINT
IC781
J-BUS
BUFF
CH-L
CH-R
SI/SO
SCK
LINE IN
CN141
KD-LH3150 J/C only
CD
CHANGER
CN902 CN131
MATRIX
1
AB CD E F G
2-1
Standard schematic diagrams
Main amplifier section
TU1
J1
QNB0100-002
L1
10u
5
0.047
C1
Q3
R5
22
R6
22
R7
FM/AM
UN2211
SM
4
CN601
QGB2027M4-22S
9V
ON5V
3
To
CD servo control section
CN501
C755
R21
SQ
470
0.47/50
C21
R991
47K
0.01
0.01
0.01
C753
C752
Q753
Q752
UN2211
2
QNZ0605-001
CN701
To
LCD & Key control section
CN801
1
2SB624
R9
47k
Q1
2SB624
47k
R8
Q2
R22
10k
Q21
2SC2412K
C751
0.01
Q751
UN2213
Q703
UN2211
6.8k
R778
R779
UDZS6.2B
UDZS6.2B
D711
D712
4.7k
R23
R992
R993
L753
QSW0451-001
6.8k
R780
UDZS6.2B
D713
UN2211
6.8k
10k
UDZS6.2B
D714
0
0
47u
S701
UDZS6.2B
D715
D3
MA152WK
R10
3.3K
47k
R24
10k
R26
C22
0.1
Q22
2SC2412K
0.0047
R27
C23
R25
2.2k
CD.L
A.GND
CD.R
Q750
UN2211
CDREQ
Q754
UN2211
SI/SO
SCK
VDD
CD8V
PON
PS
OPEN
47k
R773
47k
22K
R791
R792
KEY
Q702
VDD5V
ACC5V
DISPCK
DISPDA
DISPCE
LEVEL
DETACH
R774
47k
UDZS6.2B
UDZS6.2B
QSW0451-001
S702
D716
D720
R4
39k
R30
C24
0.01
39k
1SS355
1SS355
D1
D2C3C4
0
UN2214
C10
0.047
330P
C25
C711
0.1
47/16
0.01
47/16
C2
R3
10
C27
0.1/50
R29
4.7k
Q24
2SD601A
R28
47k
Q23
UN2211
47k
R986
47K
R805
R990
47K
R988
47k
R987
47K
R760 R759
47k 1k
R761
47k
R762
47k
R763
47k
R767
10k
R982
47k
R983
R775
2.2K
560
R797D718
D717
SML-310LT
-
D719
C712
KD-LH3150,KD-LH3100
CN141
QGA2006F1-04
R261R161
R165
C165
CF
C101
C201
100/10
C6
Q25
UN2111
SEEK
SD/ST
VOLMUTE
MUTE
R755
VOLDA
R756
VOLCK
R757
SUBM
R758
LPF1
LPF2
560
R798
S703
QSQ1A11-V06Z
MRC
PLLDI
PLLCK
PLLDA
PLLCE
C102
C202
4.7/25
4.7/25
C7
100/10
R2
27
R1
47k
0.1
C26
R754 R739
330 1k
R985
1k
1k
1k
1k
1k
IC701
47/6.3
C713
R101
R201
2SD601A
Q101
R103
4.7k
560P
C53
Q27Q26
UN2111UN2111
0.01
C57
AFCK
0
R799
PON
ILL
ACC5V
1k
0
10k1k1k
R748
R751
R750
R749
1SS355
R777
47k
R776
2.2k
D701
0.01
C714
IC702
IC-PST9333U
R102
47/6.3
C56
0.047
R11
DIM
R747
0.1
C701
470
820P
C103
R799
C971
0.022
C52
R54
C55
47P
10k
TEL
2.2k
R746
220/10
C702
LIN.L
Q201
2SD601A
R203
4.7k
2.2/50
R51
C51
1k
1k
2.2k
X51
C54
82P
PLLDI
PLLCK
PLLDA
2.2k
2.2k
2.2k1k1k1k1k
R745
R744
R743
1k
820
R707
R708
ANT
X701 X702
QAX0617-001Z
C703
8P
100p47k
C261C161
0.047100p
LIN.G
R202
0
0.001
R52
RDSSCK
QAX0263-001Z
FM/AM
PLLCE
1k
R981
R742
C704
27P
C972
RDSDA
IC51
820P
C203
CF
R709
SAA6579T
SEEK
R741
C705
LIN.R
C104
C204
C110
C210
C124
C224
TU.L
TU.R
R129
0
CD.L
R229
0
CD.R
R111
0
CH.L
0.001
R211
0
CH.R
LIN.R
LIN.G
LIN.L
R128
R112
R228
1SS355 0.047
270k
0.22/50
R53
100
R197
C194
AFCK
SD/ST
LEVEL
C971
EQLA
RDSDA
2.2K
1K
R994
R963
R740
R734
1K
10K
1k1k2.2K
1k
R713
R712
R715
R711
R989
CDREQ
BUSINT
RDSSCK
R710
R714
10M
47k
QAX0401-001
Q701
UN2213
C706
22P
27P
1/50
1/50
1/50
1/50
1/50
1/50
C262C166C162
1/50
1/50
1/50
R212
D193 C193
1SS355
D192
0.001
EQCLK
EQDATA
2.2K
2.2K
R962
R961
1k
R716
R717
KEY
PS
47k
KD-LH3150,KD-LH3100
R964
R123
R124
Q221
2SD1781K
R223
R224
0.047
100P
C143
C144
CN131
QGA2006C1-04
IC951
LA47505
C963
C964
C961
C962
C967
C968
C965
C966
180
180
180
180
QNN0490-001
100P
C123
100P
100P
100P
100P
100P
100P
100P
100P
J121
C122
0.047
QAM0464-001
QMFZ047-150-T
CN901
R121
R141
0 0.0068
1SS355
820
R122
820
R221
820
R222
820
R145
R144
15k
5.6k
C140
47k
100k
R142
R143
R951
1K
47/16
27k
R952
C951
Q951
UN2211
D951
R953
10k
3300/16
1N5404-TU-15
L901
QQR1378-001
0.1
C911
C142
2.2/50
10K
C141
0.082
R125
IC132
NJM4565V
47k
R146
FR-
C956C957C958C959
FR+
RR-
RR+
RL+
RL-
4.5/25
FL+
FL-
C955
R965
C970
2.2/50
C901
RR-
RR+
D901
Q121 Q122
2SD1781K 2SD1781K
2SD1781K
Q222
10K
10K
10K
R126
R226
R225
D121
D221
MA152WA
MA152WA
R147 R148
820 180
R149
Q133
4.7k
2SC2412K
D131
MA152WK
0
C969
2.2/50
0.10.10.10.1
C952
0.22
C953
100/16
C954
22/16
0
RL+
FL-
FR-
FL+
RL-
FR+
FL
IC912
M62449FP-X
C352
2.2/50
C370
0.0027
0.0018
C369
C368
0.0068
0.0047
C367
IC911
TDA7404D-X
2.2K
2.2K
0.0047
100/10
C120
47/16
R195
100/6.3
C725
Q191
2SD601A
390
C126
R194
12k
R192
22/16
22k
1k
R193
R196
C192
R733
R730
R729
R737
R735
R736
R728
R727
R726
R725
R794
R793
R724
R723
R722
R721
R720
R719
R984
R718
47k
BZ795 C795
QAN0023-001Z 1/50
R919
R918
C127
C125
2.2/50
120k
R127
C191
180k
1/50
47k
R191
VOLDA
VOLCK
VOLMUTE
OPEN
DETACH
1k
10k 270
10k 270
BUZZER
3.9k
3.9k
3.9k
1k
BUSI/O
1k
BUSCLK
1k
BUSSO
1k
SI/SO
47k
47k
1k
SM
1k
SQ
1k
MRC
10k
4.7k
4.7k
47k
R795
3.3k
Q795
UN2211
VDD5V
14V
BUZZER
IC703
R732
R731
MUTE
C709
470P
0.01
C707
100P
C717
R781
R782
R783
C366
0.015
0.012
C365
C364
0.039
0.027
C363
C362
0.1
0.082
C361
C351
2.2/50
C920
4.7/25
R216
10k
C131
R116
10k
R929
EQCLK
EQDATA
EQLA
22K
R996
C710
0.047
220/10
C708
L701
47u
C724
220/10
L702
47u
C715
C716
0.047
220/10
BUSSO
SI/SO
BUSI/O
10k
R785
IC781
22k
100k
47k
HD74HC126FP
R784
100
10/16
10k
Q942
UN2111
C942
D941
D942
1SS355
100/6.3
D702
1SS355
1SS355
1SS355
Q903
2SB709A
VDD
PS
C781
0.047
D704
D703
R156
0
R155
0
R157
0
R158
0
Q941
UN2111
UDZS11B
R786
100k
C917
0.047
C254
10/16
C270
0.0027
C269
0.0018
C268
0.0068
C267
0.0047
C265
0.012
C275
0.012
C264
0.039
C263
0.027
C272
0.1
C271
0.082
C255
10/16
0.047
C929
C930
10/16
C252
4.7/25
C251
4.7/25
C151
4.7/25
C152
4.7/25
ILL
TEL
C941
47/16
RB160M-30
18k 6.8k
R909 R908
D903
SCK
BUSINT
BUSCLK
R787
330
R788
100
47k 22k
R790 R789
Q131
UN2211
LPF2
1M1M47k
R131R132R133
C132
0.033
C133
0.027
C134
0.027
1M 1M
Q132
UN2211
LPF1
C304
0.01
C301
R301
4.7/25
C303
24k
R302
47/16
C302
24k
4.7/25
R305
150k
C294
100/10
C284
0.01
C281
4.7/25
R291
C283
24k
47/16
R292
C282
24k
4.7/25
R295
150k
1k
47k
R917
R916
D906
Q905
UN2211
D902
RB160M-30
4.7k
ACC5V
0.1
47k
R907
R922
R921
R923
R924
10/16
R906
C909
C910
CD8V
14V
PON
R925
22
180
22
22
22
150u
L921
D921
RB160M-30
0.047
2700P
C923
C922
C924
100/16
MA152WA
C913
0.1
R926
47k
BU4066BCFV
IC301
BA3220FV
R304
33k
IC281
BA3220FV
R294
33k
R915
0.01
100/10
0.01
0.1
220/10
C905
C904
C906
C907
C908
ANT
CH.L
220/10
A.GND
IC921
NJM2360AM
C921
CH.R
27k
4.7k
R927
R928
R135 R134
IC131
R303
33k
C307
100/10
C310
100/10
R293
33k
C287
100/10
C290
100/10
47k
Q904
2SD601A
R914
4.7k
C914
22/16
IC901
HA13164A
R905
5.6k
R903
22/16
1k
R904
C903
Q902
22/16
C902
UN2211
L922
4.7U
R182
0
100k100k
R181R281
0.047
C181
R282
0
RL
FR
RR
10k10k
100k
100k
47/16
C135
C137
0.0056
C136
0.012
47k
R136
FR
RR
C308
4.7/25
C309
4.7/25
47k
R213
47k
R113
C288
4.7/25
C289
4.7/25
9.1k4.7k
R901R902
10k
Q901
UN2111
DIM
SCK
SI/SO
0
0
R183
R184
CN902
QNZ0095-001
10/16
R140
R139R138
R137
C138
2.2/50
C139
C145
47/16
RL
D991
FL
47k
R214
47k
R114
D904
2.2/50
C912
D992
C991
R997
0R0
C216
R219
1
R215
C215
1
330P330P
330P
C218
C217C117
R217
R218
330P
C118
R117
R118
C115
1
R115
R119
C116
1
RB160M-30
R910
1k
D905
RB160M-30
2.2k
2.2k
100k
R911
R912
R913
Tuner signal
CD signal
Front signal CD-changer signal
Rear signal
AUX IN signal
2-2
Subwoofer signal
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
HAB C DE FG
KD-LH3150,KD-LH3100
CD servo control section
RWSEL
R613
68p
C611
1k
R610R611R612R614
10010k2k15k
C610
5p
5
VB
VA
VF
VE
MD
C612
0.01
C613
0.01
IOP
LD
CN601
QGF0527F2-22W
VA
VF
VE
4
3
R615
150
FOCUS-
FOCUS+
TRACKING+
TRACKING-
SPINDLE+
SPINDLE-
REST
LOAD/FEED+
LOAD/FEED-
VREF
VB
MD
LD
SW2
SW1
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
DSPRST
L623
47u
2
C687
-
SPINDLE+
SPINDLELOAD/FEED+
LOAD/FEED-
C688
-
RESET
BUSSCK
BOOT
BUSSI
BUSSO
R682
R681
6.8k
R683
6.8k
2.2k
8.2k
R684
15k
R691
B682
OPEN
CN502
QGF0501F1-08X
1
C614
0.01
4.7k
R638
4.7k
R639
R601
R602
R603
R604
4.7k
R640
4.7k
R641
0.01
C646
C601
C643
0.01
IC601
10k
R642
TA2157FN
82k
82k
330k
330k
47/6.3
L622
47u
0.33
C644
BA5830FP
C602
IC681
47/6.3
C645
0.01
R616
10k
IC621
TC94A14FA
R605
100p
C642
C609
22
R606
47/6.3
C641
0.1
C603
22
0.01
C640
R637
47
R621
R622
BCK
Q681
2SB1184/QR/
RFGC
100/6.3
1M
47
LRCK
C685
-
C686
-
R623
R690
R689
R685
6.8k
R687
6.8k
RF
33k
12k
C608
47
DATA
0.01
C621
TRACKING+
TRACKING-
RFRP
0.1
R609
SEL
2SB1132/QR/
Q601
FMO
DMO
100
100
R635
R636
L621
FOCUS+
FOCUS-
R686
12k
R688
1k
C638
CDON
TRO
FOO
DMO
10/6.3
10/16
C683
C684
47/16
TEB
C604
0.01
C690
C682
0.1
56k
47u
R607
0.01
C639
C622
FE
C606
82k
VREF
47/6.3
47/6.3
0
B681
1SR154-400
D682
47/16
C689
47/6.3
R631
R608
820
TRO
100
C607
RFDC
FOO
R630
IOP
0.01
TE
C605
0.0068
0.047
C637
0.047
C636
470p
C632
470p
C631
R634
R633
R632
100
R624
5.6k
C508
0.01
MP3DA
MP3CK
270
R546
IC502
BR24C01AFV-W
1000p
1000p
C597
C598
0.047
0.047
0.047
C633
C635
C634
0
0
0
C630
R629
10k
C627
47p
C623
270
R547
R628
R626
R625
R549
R550
0.033
C629
0.01
C625
Q501
UN2111
R542
R543
R544
R545
R548
0.01
C510
R525
100k
C626
R539
R541
47k
100
C509
0.033
0.01
1.5M
470k
4.7k
4.7k
47k
10k
100
100
10k
R540
8.2k
P.DET
47k
SEL
TEB
RFGC
TE
RFDC
FE
RFRP
RF
0.0027
C624
R627
R516
1k
0.01
TH501
NAD0022-103X
BOOT
0.015
15k
8VDET
C628
47/6.3
C514
0.001
IC501
TMP91CW12AF
0.01
C501
47u
L652
IC651
1SS355
D504
1k
1k
R501
R502
CDON
IC571
R668
0R0
C665
0.33
C668
C669
NJU7241F25
1SS355
D505
100
R538
1k
100
100
R504
R505
R503
MP3RST
CDMUTE
CDREQ
PCM1716E
R574
R675
C664
C666
C667
47/6.3
0.01
C651
DACCS
DACMD
100
100
R536
R537
MP3STB
DACML
47
LRCK
0.027
100p
0.01
47/6.3
DACMC
100
R535
R506
330
DACML
47k
SW2
DACMC
SDO
L653
C652
1SS355
D503
C507
0.01
REST
DACMD
47k
R573
X571
10p
C571
BCK
47u
0.01
R507
47k
R572
10p
C572
IC652
TC94A20F-008
C663
L651
47u
1SS355
D502
47k
DACCS
0.1
DSPRST
C580
NAX0375-001X
0.1
0.1
C576
C573
C671
0.1
R674
330
R677
1M
C653
47/6.3
BUSIO
/BUSIO
LOAD
100
100
R534
R533
47/6.3
LD/FE
1k
R532
C579
10/16
C574
C673
RWSEL
47k
R531
10/16
47/6.3
C575
100p
R651
100k
47k
R530
BUSSO
C578
C672
47k
R528
BUSSI
C654
47k
R529
BUSSCK
47/6.3
0.1
47k
R527
C502
0.01
CDON
R585
30k
R583
12k
R584
12k
R586
30k
C660
100p
C659
0.1
R620
C658
C657
C656
L501
47u
C512
100/6.3
C513
0.01
C511
0.1
R561
R568
BUSSO
R563 R562
6.8k 3.9k
C551
BUSSI
BUSIO
/BUSIO
BUSSCK
R554
C588
120p
0.01
R569
R570
C587
120p
0.1
0.1
0.1
100k
IC503
HD74HCT126T
1k
1k
R553
18k
33k
C589
4.7/35
10k10k
R592R590
C592
47/6.3
IC572
NJM4565V
47k 47k
R588 R587
C590
4.7/35
C593
47/16
IC504
NJU7241F33
1k
100
R560
100
R555
R552
R551
100k
100k
R558 R559
C591
Q571
UN2111
Q572
UN2211
C596
C594
1000p
8VDET
L502
47u
RB160M-30
Q502
UN2211
R564
R556
0
100k 0
D506
100
47/6.3
CD.L-CH
10k 10k
R591 R589
9V
CD.R-CH
ON5V
CDON
4.7
C595
R593
100p
0.047
CD.L-CH
AGNDAGNDAGND
CD.R-CH
9V
ON5V
DISCSEL
CDMUTE
CDREQ
CDRESET
B.DET
P.DET
R557
BUSSI/SO
BUSCLK
100k
CD8V
CN501
QGB2027L1-22X
To
Main amplifier section
CN601
0.1
C577
C582 C581
47u
47u
L571
L572
0.01
0.1
MP3RST
MP3CK
MP3DA
C655
DISCSEL
47k
R526
R524
100
R523
R522
R521
R520
R519
R518
R517
R513
1k
R509
R512
R511
NAX0385-001X
R510
0
C506
0.01
C503
0.01
100/6.3
47
R654
SDO
1SS355
D501
R515
R514
C504
R508
C585
R581
20k
4.7/35
C583C584
820p820p
100p 100p
C586
R582
20k
4.7/35
C662
C661
100p
MP3STB
DATA
BCK
LRCK
100
DSPRST
100
CCE
100
BUCK
100
BUS0
100
BUS1
100
BUS2
100
BUS3
SW1
47k
B.DET
47k
47k
47k
1k
CDRESET
X501
22p
27p
C505
47k
RESET
CD signal
AB CD E F G
2-3
KD-LH3150,KD-LH3100
KD-LH3150,KD-LH3100
LCD & Key control section
NSCM315CNSCM315CNSCM315C
D451D452D453
5
QGF0523F1-40W
CN802
4
C820
C821
C822
C823
C824
3
C817
R867
2.2M
0.047
0.047
0.047
0.047
0.047
0.047
C818
0.047
0.047
R898
R3
D431
UDZS6.2B
Q424
2SD601A
Q425
2SD601A
390
390
390
560
R447
R445
R446
R444
CL3
A2
A3A4A5A6A7
0
47k
R873
C816
0.47
RE
CS1
A1
C819
OSC
RES
CS
RS
WR
RD
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
15V
G3
560
R443
D0
UDZS6.2B
Q423
2SD601A
560
R442
D430
D429
UDZS6.2B
Q422
2SD601A
CL2
A8
A18
D2
390
R441
B3
Q420
2SD601A
Q421
2SD601A
390
390
390
R438
R439
R440
CL1
A19
RST
ROMCNT
D3
R2
390
R437
UDZS6.2B
2SD601A
Q419
390
R436
EXROM
D428
0.047
C459
G2
UDZS6.2B
2SD601A
Q418
2SD601A
Q417
560
560
560
R433
R434
R435
CL3
A9
A10
A11
A12
A13
A0
D7A0D6A1D5A2D4
0.047
0.047
0.047
C458
C457
C456
T2-3
T2-2
T2-1
T1-4
T1-3
T1-2
T1-1
R3G3B3R2G2
B2
UDZS6.2B
D427
D426
2SD601A
Q415
Q416
Q414
2SD601A
2SD601A
390
390
390
R432
CL2
A14
A15
A16
A17
R431
R430
IC802
LH28F160BJHET92
0.47
C815
0.47
C814
CL1
10/6.3
C813
R866
390
R429
2.2k
4.7/6.3
C812
T2-7
T2-6
T2-5
T2-4
T1-7
T1-6
T1-5
B2
Q413
2SD601A
Q412
390
390
R427
R428
IC803
IC-PST3424U-X
T2-8
T1-9
T1-8
2SD601A
560
R426
CL3
0.047
0.047
0.047
C455
C454
C453
T2-10
T2-9
T1-10
UDZS6.2B
UDZS6.2B
D424
D425
2SD601A
Q411
Q410
2SD601A
390
560
560
R423
R424
R425
CL2
47k
R865
1SS355
D803
R848
1k
Q409
390
R422
D423
2SD601A UDZS6.2B
390
R421
RST
0.047
C811
SBRST
10V
Q408
CL1
0.047
C452
2SD601A
DISPCE
PSAVE2
KEYIN
RST
D0
D1
D2
D3
D4
D5
D6
D7
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
0.047
C451
R846
0.047
C835
C810
0.1
R845
R844
R843
R842
R841
10k
47k
R847
R806
47k
330
R471
330
R472
330
R473
330
R474
330
R475
330
R476
330
R477
330
R478
1K
R815
1K
R814
1K
R813
1K
R812
1K
R811
1K
R810
1K
R809
1K
R808
IC801
MN102H60KCG
Q804
UN2111
C831
ROMCONT
0.1/35
47k
SBD
SBT
47k
KEYDA
DISPCK
1K
R479
RES
R839
1k
330
R801
RE
1k
R838
330
R895
10k
R837
330
R897
10k
R836
DISPDA
10k
R835
330
R803
CS1
1.5k
1.5k
1.5k
LED2
47K
R896
TRIMLED
LED4
LED0D1LED1
LED5
R834
LED6
KEY2
KEY1
KEY0
10k
10k
10k
10k
R831
R832
R833
330
330
330
R804
R849
R850
330
R851
330
R852
A3
LED3
1k
R828
VOL2
1k
R827
10/6.3
C801
VOL1
100k
R826
CS
RS
WR
CL1
CL2
CL3
1K
1K
100k
100k
R824
R825
R817
R818
R819
0.047
C833C832
30p30p
C802
47k
R830
47k
R829
4.7/6.3
C809
4.7/6.3
C808
4.7/6.3
C807
1K
R823
R807
C806
0.047
C804
470p
1K
1K
R816
8.2k
R821
1k
R822
330
R820
330
R894
330
R893
330
R871
330
R864
330
R863
330
R862
330
R861
330
R860
330
R859
330
R858
330
R857
330
R856
330
R855
330
R854
330
R853
47k
X801
NAX0586-001X
TH801
NAD0022-103X
OSC
RD
ANA
EXROM
A19
A18
A17
A16
A15
A14
A13
A12
C805
470P
A11
A10
A9
A8
A7
A6
A5
A4
R889 R888 R887
820 560 390
S815 S814 S813 S812 S811 S810
R868
47k
R869
47k
Q803
2SD601A
PSAVE2
R874
C825
R881
560
S806 S805
R890R891
560820
S816S817 S809 S808S807
Q801
2SB709A
Q802
2SB709A
100k
10/6.3
R880
390 270 300
R882 R883R884
390 300270
470k
R892
L801
47u
R879
S804
R886 R885
270 300
D801
MA152WK
R872
IC804
NJU7241F33-X
C827
0.047
S803
R878
KEY0
S802
KEY1
KEY2
S818
KEYIN
R870
470k
PS2
47k
VDD5V
C828
C826
10/6.3
10/6.3
470
R414
D414
SML310BAT/JKL-X
UN2211
Q404
LED0
470
R413
LED1
820
820
820
R416
R405
R406
SML-310LT
D403
D413
SML310BAT/JKL-X
Q407
Q406
UN2211
LED2
EN801
QSW0976-001
VOL2
VOL1
820
R415
UN2211
SML-310LT
D416
LED3
D812
680
680
R456
R457
UN2211
Q405
UDZS6.2B
R875
SML-310LT
D415
SML-310LT
D417
R876
470
R420
LED4
470
R419
**REM
0
Q401
IC805
470
R408
SML-310LT SML-310LT SML-310LT
D422 D421 D420
UN2211
R899
470
R407
SML-310LT SML-310LTSML-310LT
D407 D406D408
LED5
RPM6938-SV4
C829
680
R410
Q402
680
R409
UN2211
4.7/6.3
SML-310LTSML-310LT
D409D410
LED6
680
R412
Q403
R877
470
680
R411
UN2211
820
R455
SML-310LTSML-310LT
D411D412
820
R454
D435
Q428
TRIMLED
820
820
R452
R453
NSPB310A
D436
NSPB310A
2SD601A
ACC5V
470
R418
470
R417
1.2k
1.2k
R404
R403
SML-310LT SML-310LT SML-310LT
D405 D418 D419
1k
1k
R402
R401
SML-310LT
D402
**REM
SBRST
MA152WK
SBT
SBD
PS2
D401
15V
10V
ACC5V
VDD5V
DISPCK
DISPDA
DISPCE
KEYDA
ANA
UDZS6.2B
UDZS6.2B
D808
D804
UDZS6.2B
UDZS6.2B
D811
D810
UDZS6.2B
UDZS6.2B
D805
D806
UDZS6.2B
D809
UDZS6.2B
D807
CN801
NNZ0087-001
To
Main amplifier section
CN701
2
1
2-4
HAB C DE FG
Printed circuit boards
KD-LH3150,KD-LH3100
Main board
Main board
5
Forward side
C101
C201
C25
C8
C10
J1
C143
C144
CN131
TU1
D1
D2
C1
C5
R4
C2
S701
R1
R11
R2
R141
C52
R146
R140
C102
C202
C795
R799
R144
C3
C4
C6
C7
C53
J121
C123
PP1
R149
R147
R148
R137
R142
R143
R3
C9
C57
C51
R795
D221
C27
C56
R54
C142
C54 C55
BZ795
R131
Q795
D121
C137
R139
C139
R136
R133
R6
R7
R9
R10
R8
C26
R53
X51
C21
R787
R788
R789
R790
R784
R781
R782
S703
C122
R134
R5
Q23
C713
C138
R786
C23
R184
C941
R783
CN902
R138
C131
C708
R25
D942
R26
D941
C942
R24
Q901
R22
R999
R709
R183
R21
R23
R984
C902 C903
R903
L922
C22
R710
C706
X702
C921
CN901
C911
R911
R912
D961
D962
D963
D964
D968
C961
C953
C152
D965
C290
C191
C963
C955
Q191
C962
C294
C951
C282
R953
R115
R117
R217
C307
C301
C252
C125
Q951
R113
R213
D967
D951
R119
R118
IC301
R780
R114
R218
R219 R215
R214
R779
C310
L753
C216
C303
R778
C965
C966
C720
C115
C251
C755
C969
D966
C964
4
3
2
IC951
S702
R965
C118
C287
C281
C959
C117
R951
IC281
R197
C958
C957
C956
CN701
C151
C970
R952
C218
C192
C283
C217
C954
C901
C194
C967
C302
C968
C215
C116
C917
D905
D903
C270
CN601
C269
C370
C268
C369
R914
R913
C913
C368
C289
C267
C266
C367
C914
C265
C366
C365
R992
R993
D901
C288
C264
R910
Q904 Q905
C309
C308
C272
C263
C271
C364
C363
C362
C912
C162
C929
C930
IC912
C361
C719
D906
L702
D902
C166
C920
R988
R805
C718
C715
CN141
C262
R919
R929
R918
R987
R990
D717
D904
R915
R917
R116
R216
L901
D718
C255
R916
C351
R985
R986
D719
C910
R901
R754
R755
R756
R757
R758
R759
R902
C908
C923
R963
R961
R962
IC911
C126
C909
C702
L921
C352
R751
R750
R707
C905
R749
R930
C224
R748
C210
R711
C906
R906
C907
R747
C254
R742
IC701
R989
C204
R981
R739
C903
IC921
R713
X701
IC901
R741
R775
C120
R740
R712
R774
R792
R994
R715
C902
Q903
R791
R717
R716
R908
R734
R996
C124
C110
C104
C707
R909
X702
C921
Q701
R714
CN702
R904 R905
C941
R733
R732
R730
R731
R729
R728
R727
R722
R720
R719
C181
C131
R726
R725
R724
R723
R182
Q902
R773
R718
Q941
D702
C138
Q21
R181
C942
L701
C136
C137
C135
Q22
IC703
C708
R777
C713
R281
R28
R282
Q25
Q26
D701
C139
Q27
CN902
C141
Q1 Q2
IC702
Q942
C21
S703
C24
R27
R785
R776
R123
Q121
R29
C710
C781
R121
R145
Q131
D3
R125
IC132
IC131
C56
R221
C142
Q3
R202
Q24
IC781
PP1
R102
C203
R203
C27
J121
R124
R223
R224
Q221
R225
R132 R135
Q132
C103
R103
X51
IC51
Q122
D131
C140
C133
C132
C134
Q201
R122
R52
C140
C6
R30
R126
C3
C4
C102
R101
Q101
R201
C51
C795
BZ795
R222
C202
Q222
R226
J1
CN131
Q133
TU1
L1
C7
C9
R51
S701
C922
C120
C124 C224
C210
C110
C104
C204
Q702
R793
R794
C703 C704
C705
X701
R921
C254
R721
Reverse side
IC901
R927
R737
R924
R926
R743
R745
R925
R744
R746
C709
D921
C972
C908
C126
C923
C925
R211
R212
C717
R111
R129
C910
C924
R261
C261
C161
R161
R763
R112
R128
C127
R997
C718
C715
C904
R928
Q703
C701
R708
C905
R922
R228
C714
C702
R923
C352
C711
R735
C712
R229
R736
C351
R762
C716
R760
C255
C262
C971
R761
C912
C920
D703
C930
R983
R797
C719
R982
R165
CN141
C166
R998
Q751
C751
D901
R158
R767
R798
R910
C165
R157
D704
C162
C309
C308
R155
Q750
R156
Q753
C914
L901
C288
C753
R907
C289
C116
C216
CN601
C115
C752
C215
R302
Q754
C302
C251
D720
D716
C310
Q752
D711
R301
C303
D712
D713
D714
R991
D715
R304
C125
R305
R127
C951
C307
R192
C955
C304
R194
R303
R191
C901
R292
C301
C252
C282
C152
C191
C954
R195
C193
C194
C290
R193
C284
C294
C283
CN901
C969
C953
R294
R196
CN701
R964
C970
C287
R291
R295
D192
D193
C952
IC951
R293
C281
C151
C192
S702
1
AB CD E F G
2-5
KD-LH3150,KD-LH3100
KD-LH3150,KD-LH3100
Front board
Forward side
R455
D435
L801
D413
S806
D419
S813
Q407
D403
R822
C825
C835
D808
EN801
D807
R848
D416
D414
R405
R406
S815
R834
R844
R845
R827
D811
R826
R819
R818
R837
S804
D420
R838
R839
R847
R817
R479
R804
R823
C804
R816
R879
R820
R821
S803
R849
D421
TH801
R871
R894
D422
R893
R864
R863
S802
R862
R861
R860
R859
R858
R878
R873
R857
S812
D406
R815
R814
R813
R812
R811
R810
R809
R808
D407
S811
R478
R477
R476
R475
R474
S810
R856
R473
R855
R472
R854
R471
D408
R853
S805
D417
D402
S816
5
R454
C456
C454
D451
C451
C452
C453
S809
R452
S817
R453
D418
R409
R410
IC805
S818
D409
S814
S807
D415
D412
D411
D410
D405
S808
D436
R884
Front board
C808
D423
Q408
R421
R422
R423
R427
R428
R429
R433
R434
R435
R436
R437
R438
R442
R443
R444
R887
R889
R888
D436
Q402
Q403
R883
Q409
R412
R411
Q412
Q413
Q416
Q417
Q418 Q419
Q422 Q423
R882
IC805
C807
D428
T1-10
D425
D427
R890
T1-6
T1-3
T1-8
T1-7
R456
R457
T1-9
T1-5
T1-4
T1-2
C834
R899
R480
D430
Q428
D429
D431
D812
D424
D426
R877
R875 R876
Q415
Q421
Q411
C829
Q405
Q420
Q424 Q425
Q410
Q414
R445
R446
R447
R420
R419
R439
R440
R441
C814
R408
C815
C816
R407
R885
Reverse side
R424
R425
R426
R430
R431
R432
IC802
Q401
Q804
C822
C821
C820
C817
C819
C824
C831
R867
R886
CN802
D810
C823
R850
R851
R852
C802
C832
C833
R896
R895
R897
C818
CN801
C801
C805
R803
R898
X801
R807
R801
IC801
R824
R825
R806
R836
R841
R874
R846
R833
R842
R843
R832
R835
D806
R831
R828
D804
D805
C809
R892
C811
C810
Q803
D809
D803
Q404
R872
Q406
R866
R865
R829
C827
C812
C813
R830
IC803
Q802
C826
C828
IC804
Q801
C806
R880
R868
R870
R881
D801
R891
R401
R402
R415
R416
EN801
R869
R418
R417
R413
D435
D401
R404
T1-1
R403
R414
4
Mecha control board Mecha control board
Forward side Reverse side
C522
C524
C526
C528
C530
C531
C532
C527
C523
C525
C529
C587 C588
R583 R584
C589
Q682
C503
C656
IC652
X651
IC572
C580
C654
C514
R587
C577
R511
C506
R514
LCH
L572
D503
D504
D505
C590
R589
IC571
R654
R515
R585 R586
C596
C595
C521
R518
R517
R519
R520
R521
R522
R533
R534
C655
D502
R651
R512
R541
C502
R513
R588
R516
C574
R593
C507
C592
C575
R531
R542
RCH
IC501
R545
C586
C509
R592
3
L652
L653
C668
C583
R581
C581
C669
C658
C584
R582
C582
C673
C653
L651
C672
B682
C597
R573
R694
R591
R693
C591
C598
R572
C657
R692
Q683
C578
C585
C579
C671
TH501
R615
R602
R603
R605
R606
R616
C602
R628
R639
R604
R614
C625
R635
R636
R638
R601
R608
R607
C627
C626
C636
C643
R609
C608
R629
C642
C614
C632
C631
C640
C611
C637
C605
R613
C638
R637
R611
R630
R631
R610
R632
R634
R633
R691
R682
R684
C688
R681
R683
C684
C573
C572
C576
C571
R507
R506
R527
R529
R564
R566
R544
R543
R504
R505
R524
R539
R535
R538
R565
R571
R574
R526
R528
R530
R537
R536
C676
C675
R677
R676
R668
C667
R678
C666
R675
C663
C664
R674
C665
R623
R621
R622
R626
C621
C644
R642
R640
R641
R612
R625
C646
C610
R627
C609
R624
2
C687
C685 C686
IC681
R689
C681
Q681
C683
D682
C634
C603
C635
C633
B681
1
C629
RFDC
C682
SEL
C606
R688
TEB
C616
R690
R685 R687
C639
L622
C689
VREF
R686
L621
D681
C690
FE
C612
Q601
TE
IC621
C641
C647
C613
RFRP
C607
CN601
C604
IC601
BUCK
CCE
IC651
C674
C645
RWSEL
C628
C601
C652
C623
C624
C615
L623
C662
C661
C660
C659
C622
C651
RFGC
RF
C630
BUS0
1
2
3
ON5V
R590
C594
R549
9V
L571
C533
LRCK
BCK
R532
R554
X501
DSEL
C534
X571
BDET
DATA
REQ
C593
Q571
R540
R548
R523
Q502
PDET
RESET
CDMUTE
Q572
L502
R502
R503
L501
C512
R553
R550
SI/SO
R525
VDD
C535
D506
R563
C539
C537
R562
C536
IC504
C511
C508
Q501
D501
C505
BUSCK
C538
R551
C510
C501
R509
CN501
R552
R510
C513
C504
R508
R501
R559
R560
IC503
R568
R569
R555
R556
R557
IC502
R547
R546
CN502
R558
R561
C551
R570
2-6
HAB C DE FG
< MEMO >
KD-LH3150,KD-LH3100
KD-LH3150,KD-LH3100
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49838SCH)
Printed in Japan
2003/05
KD-LH3150, KD-LH3100
SERVICE MANUAL
CD RECEIVER
4983820034
KD-LH3150, KD-LH3100
ARSENAL rogo
LINE in
Line output level
WARRANTY
SOUND
ATT
U
SOURCE
F
R
D
VOL
VOL
SOUND
ATT
U
SOURCE
F
R
D
VOL
VOL
KD-LH3150J
KD-LH3150C KD-LH3100J
4 V 4 V 2 V
2 YEAR 1 YEAR 1 YEAR
KD-LH3150
KD-LH3150
KD-LH3100
KD-LH3100
KD-LH3150
Area Suffix
J -------------------------- U.S.A.
C --------------------- CANADA
KD-LH3100
Area Suffix
J -------------------------- U.S.A.
TABLE OF CONTENTS
1 Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
4 Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.49838
2003/5
KD-LH3150, KD-LH3100
1.1 Safety Precautions
SECTION 1
Important 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.
1-2 (No.49838)
KD-LH3150, KD-LH3100
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 DVD 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 conducti ve 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.
(caption)
Anti-static wrist strap
1M
Conductive material
(conductive sheet) or iron plate
(3) Handling the optical pickup
• In order to maintain quality during transport and before insta llation, both sides of the lase r diode on the replacement o ptical
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.
Short-circuit point
(Soldering)
Flexible wire
Short-circuit point
Pickup
Pickup
(No.49838)1-3
KD-LH3150, KD-LH3100
Disassembly method
2.1 Main body
2.1.1 Removing the front panel assembly
(See Fig.1)
(1) P ush the detach button in the lower left part of the front
panel assembly and remove the front panel assembly.
2.1.2 Removing the bottom cover
(See Fig.2)
• Prior to performing the following procedure, remove the front
panel assembly as required.
(1) T urn over the main body and release th e two joints a, two
joints b and joint c.
NOTE:
Do not damage the main board when releasing the joints using
a screwdriver.
SECTION 2
Front panel assembly
Detach button
Fig.1
Bottom cover
Joint b
Joint a
Joint a
Joint b
Joint c
Fig.2
1-4 (No.49838)
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 A on the both sides of the main
body. (See Fig.3.)
(2) Remove the two screws B on the front side of the main
body. (See Fig.4.)
(3) Release the two joints d and two joints e on the both sides
of the main body. (See Fig.3.)
Joint d
A
KD-LH3150, KD-LH3100
Joint e
A
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 C and two screws D on the left
side of the main body.
B
Joint d
Front chassis assembly
Joint e
Fig.3
Front chassis assembly
Fig.4
C
D
Heat sink
Fig.5
(No.49838)1-5
KD-LH3150, KD-LH3100
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, three screws F and 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 LINE IN cable
(KD-LH3150 only) into the slots.
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 H attaching the main board.
(2) Disconnect the connector CN601 and remove the main
board in an upward direction.
FG
Rear bracket
G
F
E
E
Insert SUB WOOFER cable and
LINE IN cable (KD-LH3150 only)
into the slots.
Fig.6
CN601
H
Main board
H
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 J attaching 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.
Joint f
Mecha
connector
Card wire
Mecha control board
Fig.7
J
Top chassis
J
Fig.8
1-6 (No.49838)
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 K attaching the CD mechanism
assembly to the top chassis.
KD-LH3150, KD-LH3100
K
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 L attaching 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.)
L
L
Front panel assembly
Rear cover
Fig.10
L
L
CD mechanism assembly
Front panel
assembly
Rear cover
Front board
Top chassis
K
Fig.9
Joint g
Joint g
Fig.11
Fig.12
(No.49838)1-7
KD-LH3150, KD-LH3100
A
2.2 CD Mechanism section
2.2.1 Removing the top cover
(See Figs.1 and 2)
(1) Remove the four screws A on the both side of the body.
(2) Li ft the front side of the top cover and move the top cover
backward to release the two joints a.
Top cover
Joints a
A
Joints a
A
Fig.1
Fig.2
Top cover
1-8 (No.49838)
KD-LH3150, KD-LH3100
2.2.2 Removing the connector board
(See Figs.3 to 5)
CAUTION:
Before disconnecting the flexible wire from the pickup, solder
the short-circuit point on the pickup. No observance of this instruction may cause damage of the pickup.
(1) Remove the screw B fixing the connector board.
(2) Solder the short-circuit point on the pickup.
(3) Disconnect the flexible wire from the pickup.
(4) Move the connector board in the direction of the arrow to
release the two joints b.
(5) Unsolder the wires on the connector board if necessary.
CAUTION:
Unsolder the short-circuit point after reassembling.
B
Connector board
Flexible wire
Wires
Joints b
Short-circuit point
Fig.3
Short-circuit point
(Soldering)
Pickup
Flexible wire
Frame
Pickup
Fig.4
B
Connector board
Fig.5
(No.49838)1-9
KD-LH3150, KD-LH3100
2.2.3 Removing the DET switch
(See Figs.6 and 7)
(1) Extend the two ta bs c of the feed sw. holder and pull out
the switch.
(2) Unsolder the DET switch wire if necessary.
DET
switch
Connector
board
Pickup
Fig.6
DET switch
Tab c
Tab c
DET switch wire
Feed sw. holder
Fig.7
1-10 (No.49838)
2.2.4 Removing the chassis unit
r
(See Figs.8 and 9)
• Prior to performing the following procedure, remove the top
cover and connector board.
(1) Remove the two suspension springs (L) and (R) attaching
the chassis unit to the frame.
CAUTION:
• The shape of the suspension spring (L) and (R) are different. Handle them with care.
• When reassembling, make sure that the three shafts
on the underside of the chassis unit are inserted to the
dampers certainly.
Suspension spring (R)
KD-LH3150, KD-LH3100
Chassis unit
Suspension spring (L)
Frame
Suspension spring (R)
Chassis unit
Shafts
Damper
Damper
Suspension spring (L)
Fig.8
Shaft
Dampe
Frame
Fig.9
(No.49838)1-11
KD-LH3150, KD-LH3100
2.2.5 Removing the clamper assembly
(See Figs.10 and 11)
• Prior to performing the following procedure, remove the top
cover.
(1) Re mov e the clamper arm spring.
(2) Move the clamper assembly in the direction of the arrow to
release the two joints d.
Clamper arm
spring
Joint d
Clamper assembly
Fig.10
Clamper arm spring
Chassis rivet
assembly
Joint d
Joint d
Chassis rivet assembly
Clamper assembly
Joint d
Fig.11
1-12 (No.49838)
2.2.6 Removing the loading / feed motor assembly
(See Figs.12 and 13)
• Prior to performing the following procedure, remove the top
cover, connector board and chassis unit.
(1) Remove the screw C and move the loading / feed motor as-
sembly in the direction of the arrow to remove it from the
chassis rivet assembly.
(2) Disconnect the wire from the loading / feed motor assembly
if necessary.
CAUTION:
When reassembling, connect the wire from the loading /
feed motor assembly to the flame as shown in Fig.12.
KD-LH3150, KD-LH3100
Loading / feed motor assembly
Fig.12
Loading / feed motor assembly
C
Fig.13
(No.49838)1-13
KD-LH3150, KD-LH3100
r
2.2.7 Removing the pickup unit
(See Figs.14 to 18)
• Prior to performing the following procedure, remove the top
cover, connector board and chassis unit.
(1) Remove the screw D and pull out the pu. shaft holder from
the pu. shaft.
(2) Remove the screw E attaching the feed sw. holder.
(3) Move the part e of the pickup unit upward with the pu. shaft
and the feed sw. holder, then release the joint f of the feed
sw. holder in the direction of the arrow. The joint g of the
pickup unit and the feed rack is released, and the feed sw.
holder comes off.
(4) Remove the pu. shaft from the pickup unit.
(5) Remove the screw F attaching the feed rack to the pickup
unit.
2.2.8 Reattaching the pickup unit
(See Figs.14 to 17)
(1) Reattach the feed rack to the pickup unit using the screw F.
(2) Reattach the feed sw. holder to the feed rack while setting
the joint g to the slot of the feed rack and setting the joint f
of the feed rack to the switch of the feed sw. holder correctly.
(3) As the feed sw. holder is temporarily attached to the pickup
unit, set to the gear of the joint g and to the bending part of
the chassis (joint h) at a time.
CAUTION:
Make sure that the part i on the underside of the feed
rack is certainly inserted to the slot j of the change lock
lever.
(4) Reattach the feed sw. holder using the screw E.
(5) Re attach the pu. shaft to the pickup unit. Reattach the pu.
shaft holder to the pu. shaft using the screw D.
Feed sw. holder
Part e
Joint g
Feed sw. holder
Feed rack
Part i
E
Slot j
F
Fig.15
Pu. shaft
Pickup unit
Joint f
Joint h
Fig.16
Feed rack
Pickup unit
Feed sw. holder
D
Pu. shaft holde
Joint f
Pu. shaft
D
Pu. shaft holder
Pickup unit
Fig.14
Part e
E
Joint g
Pickup unit
Feed rack
Fig.17
Pickup unit
Joint g
Joint f
Feed sw. holder
Fig.18
1-14 (No.49838)
KD-LH3150, KD-LH3100
r
2.2.9 Removing the trigger arm
(See Figs.19 and 20)
• Prior to performing the following procedure, remove the top
cover, connector board and clamper unit.
(1) Turn the trigger arm in the direction of the arrow to release
the joint k and pull out upward.
CAUTION:
When reassembling, insert the part m and n of the trigger arm into the part p and q at the slot of the chassis rivet assembly respectively and join the joint k at a time.
Chassis rivet assembly
Trigger arm
Chassis
rivet
assembly
Joint k
Trigger arm
Fig.19
Part p
Part q
Part m
Part n
2.2.10 Removing the top plate assembly
(See Fig.21)
• Prior to performing the following procedure, remove the top
cover, connector board, chassis unit, and clamper assembly.
(1) Remove the screw H.
(2) Move the top plate assembly in the direction of the arrow to
release the two joints r.
(3) Unsolder the wire marked s if necessary.
H
Fig.20
Top plate assembly
Joints
s
Fig.21
(No.49838)1-15
KD-LH3150, KD-LH3100
2.2.11 Removing the mode sw. / select lock arm
(See Figs.22 and 23)
• Prior to performing the following procedure, remove the top
plate assembly.
(1) Bring up the mode sw. to release from the link plate (joint t)
and turn in the direction of the arrow to release the joint u.
(2) Unsolder the wire of the mode sw. marked s if necessary.
(3) T urn the select lock arm in th e direction of the arrow to re-
lease the two joints v.
(4) The select lock arm spring comes off the select lock arm at
the same time.
Top plate
Link plate
Joint u
Joint t
s
Fig.22
Select lock arm
Select lock arm
Mode sw.
Select lock arm
Top plate
Hook w
Select lock
arm spring
Link plate
Joints v
Fig.23
1-16 (No.49838)
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