JVC KDS-891-R Service manual
SCHEMATIC DIAGRAMS
CD RECEIVER
KD-S891R
CD-ROM No.SML200307
Area suffix
E ----------- Continental Europe
EX --------------- Central Europe
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-5 to 7
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
No.49876SCH
2003/7
KD-S891R
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.
2-4
Block diagram
KD-S891R
J1
5
SW1,SW2,PSW
LM0,LM1
SPINDLE+
CN501
SPINDLEFEED+
FEEDTRACKING+
TRACKINGFOCUS+
FOCUS-
VF1,VF2,
VT1,VT2,
MD,LD
IC501
CD
DRIVER
IC521
RF AMP
POSITION SET
PSW
SWITCH
4
LOAD&FEED
MOTOR
SPINDLE
FEED+
FEED-
SPINDLE+
SPINDLE-
MOTOR
SW1, SW2
PICK UP
SW1, SW2
VF1,VF2,
VT1,VT2,
LD,MD,
TRACKING+
TRACKINGFOCUS+
FOCUS-
TRO,FOO
DMO,FMO
SEL
TEB
RFDC
TE,RF,FE
RFGC
RFRP
IC541
DSP
IC401
MP3
&
INT. SRAM
IC481
DAC
BUS0,BUS1
BUS2,BUS3
BUCK,CCE
RST
MP3DIN
MP3DOUT
MP3REQ
MP3STBY
MP3CLK
MP3RESET
DAC-CDTI
DAC-CCLK
DAC-CSN
DAC-PDN
ANT
FM/AM
TUNER
AMVT
FMVT
FM/AM OSC
PLLDA
PLLDI
PLLCL
PLLCE
TU1
IC31
PLL
IC701
CPU
SEEK/STOP
SD/ST
MONO
SM
RDSCL
RDSDA
TU.L
TU.R
VOLDA
VOLCL
IC71
RDS
DETECTER
IC161
E.VOL
OUTFL
OUTFR
OUTRL
OUTRR
CD.L
CD.R
REGULATOR
EACH BLOCK
3
AOUTL
IC602
REMOCON
REMOCON
S601 to S618
KEY MATRIX
KEY0
KEY1
KEY2
CJ601
AOUTR
CN701
IC581
CD L.P.F.
IC901
Front L
Front R
Rear L
Rear R
J321
LINE OUT
IC301
POWER
AMP
Front LEFT+
Front LEFTFront RIGHT+
Front RIGHTRear LEFT+
Rear LEFTRear RIGHT+
Rear RIGHT-
CN901
SPK
BATTERY
2
LCD1
COM1
COM2
COM3
S1 to S50
IC601
LCD
DRIVER
LCDCL
LCDDA
LCDCE
1
AB CD E F G
2-1
Standard schematic diagrams
T
Main amplifier section
TU1
QAU0292-001
J1
B1
5
C36
7p
C35
10p
2.2k
PLLCE
R37
2.2k
PLLDA
R36
2.2k
PLLCL
R35
2.2k
PLLDI
R34
0
QNB0100-002
C9
390P
X31
QAX0616-001Z
IC31
TB2118F-X
4
R33
10k
R32
6.2k
C34
0.047
9V
CD.R
A-GND
CD.L
PSW
SW1
SW2
LM0
LM1
BUS0
BUS1
BUS2
BUS3
BUCK
3
2
CCE
RST
CD8V
MP3REQ
To
CD servo control section
MP3RESET
MP3STBY
MP3DIN
MP3DOUT
MP3CLK
DAC-CDTI
DAC-CCLK
DAC-CSN
DAC-PDN
CDRW
SW5V
VDD5V
CDON
DETACH
10V
ACC5V
REMOCON
ENC1
ENC2
DIMMER
LCDCL
LCDDA
LCDCE
KEY0
KEY1
KEY2
To
LCD & Key control section CJ601
CN701
VMC0334-001
D701
D702
D703
SQ
R58
0.47/50
A-GND
CH.SCK
C55
D704
CH.L
CH.R
15k
R57
470
D705
Q52
2SD601A/R/-X
1
J801
QNZ0095-001
D706
C8
47/6.3
L1
4.7u
47/16
1SS355-X
1SS355-X
D2
D1
C39
1000P
R38
100
R39
0.001
C38
C37
10p
C33
10k
R56
D707
D708
47K
R802
C48
0.047
UN2211-X
C54
0.1
D709
C40
10/16
0.047
C41
C46
C47
R43
470
C32
47p
Q31
2SD601A/R/-X
D712
R805
100k
R804
22k
R803
100
C718
C53
0.033
C42
10
Q51
0.0047
0.1
39k
0.047
R40
C43
0.01
0.01
R44
220
C50
100p
R54
10k
0.1
C716
C1
0
10k
0.0027
R41
C45
C44
0.01
R42
FM/AM
R53
47k
0.01
R52
2.2k
R55
0.1
C717
R806
IC801
HD74HC126FP-X
C52
47k
10k
R7
4.7k
C31
D713
0.047
C2
2SB624/4/-X
100/10
22k
R51
Q7
UN2211-X
10
0.001
R31
0.01
C6
Q6
C49
IFC-CONT
330P
C51
R810
100
C801
0.047
220/10
R9
C4
2SB709A/R/-X
R6
47k
R1
12
R10
10k
UN2211-X
Q10
SI
R808
330
Q5
R809
22k
R801
47k
47
47k
R5
D5
1SS355-X
Q53
R59
47k
UN2211-X
R709
SO
R807
100K
SCK
KD-S891R
C81
1/50
1/50
0.012
C84
R3
UN2111-X
Q84
Q1
2SD601A/R/-X
MONO
C706
0.047
VOLDA
VOLCL
CDON
BUCK
CCE
RST
BUS0
BUS1
BUS2
BUS3
CDRW
SW5V
1/50
0.001
0.012
C85
C94
4.7k
Q3
UN2111-X
D84
AFCK
R720
R719
VDD
VPP
R760
R759
R716
R715
R714
R713
R712
R711
R710
R708
R707
R706
R704
R705
C5
Q2
2SD601A/R/-X
0.01
C3
R8
10k
UN2211-X
Q8
D4
1SS355-X
R4
3.3k
SM
SEEK/STOP
SM
47k
SI
SO
I/O
INT
SCK
C91
1SS355-X
R758
47k
1.2k
0
47k
47k
0
0
10k
0
0
0
0
3.3k
47k
47k
0.001
C95
C83
C76
0.1
C77
47/6.3
C75
47p
47k
47k
C74
82p
R93
0.01
R81
R91
4.7k
Q91
2SD601A/R/-X
Q9
UN2111-X
2.2k
R71
R72
X71
QAX0263-001Z
RDSCL
10k
R763
C714
1/50
8.2K
8.2K
R84
2.2k
1k
R721
0
10k
R722
20K
0.0015
R92
C92
IC71
SAA6579T-X
DIMIN
SW2
PSW
X1
C715
0.1
R703
R83
VSS
0
LM0
C705
0.047
20K
0.0015
R82
C82
4.7k
Q81
2SD601A/R/-X
C71
560p
C72
0.022
C78
C73
2.2/50
0.01
R74
R73
100
2.2k
RDSDA
PLLDI
PLLCL
PLLDA
PLLCE
FM/AM
TELMUTE
R702
R755
0
10M
LM1
L702
10u
SEEK/STOP
IFC-CONT
10k
R723
IC701
UPD784217AGC199
R754
820
X701
C704
8P
27p
C702
C703
QAX0617-001Z QAX0401-001
X702
AFCK
R701
27p
47k
C701
47k
R2
SD/ST
MP3REQ
10k
R725
SW1
22p
TU.R
TU.L
CH.L
CD.L
CD.R
CH.R
A-GND
MP3STBY
MP3DOUT
MP3RESET
INT
47k
R753
MP3DIN
MONO
10k
R726
RDSCL
RDSDA
47k
R752
MP3CLK
R751
REMOCON
C708
0.047
C173
C172
C171
C161
C162
C163
SD/ST
10k
R728
10k
1/50
1/50
1/50
1/50
1/50
1/50
DAC-PDN
DAC-CDTI
R750
ENC1
RESET
DAC-CCLK
TD
10k
R756
47k
D710
DAC-CSN
270
R772
R734
R735
R736
R737
R738
R739
R740
R741
R743
R744
R745
R746
1SS355-X
C709
0.01
C192C191
100/1047/16
R729
270
R771
R732
10K
2.2k
2.2k
2.2k
RD
10k
R742
47k
10k
10k
10k
10k
KD-S891R
2.2k
R173
R172
22k
C174
C175
0.0082
0.18
C176
0.22
C166
0.22
C164
C165
0.0082
0.18
R162
22k
R163
2.2k
47k
IC771
BR24L16F-W-X
C771
0.047
LCDCE
LCDCL
LCDDA
I/O
0
4.7k
4.7k
4.7k
R765
IC702
IC-PST600M/G/-W
C710
47/6.3
C707
SCK
0.047
SO
SI
SM
SQ
LEVEL
KEY2
KEY1
KEY0
ENC2
4.7k
R747
R748
4.7k
R749
4.7k
0
R757
2.2k
R161
220k
220k
R171
0.033
C167
0.033
D244
C177
R248
220
UDZS5.1B-X
1SS355-X
4.7u
L701
C711
220/10
C713
0.1
C712
0.01
RB160M-30-X
D243
C244
0.22/50
D240
1SS355-X
D241
C178
0.0056
C168
0.0056
C194
0.082
DIMIN
TELMUTE
33K
R247
D242
C920
0.01
Q781
R892
47k
UN2211-X
C243
0.047
R245
1SS355-X
47
1k
R246
C193
100/10
UN2111-X
D781
1SS355-X
D892
Q891
C242
22/16
Q241
2SD601A/R/-X
C782
0.082
C781
47/6.3
1SS355-X
C891
0.1
C179
C180
R181
R182
C170
C169
R244
12k
R242
22k
R891
1k
R243
180k
C241
1/50
R241
47k
4.7/25
4.7/25
IC161
TEA6320T-X
4.7/25
4.7/25
Q881
UN2211-X
D891
1SS355-X
IC301
D784
LA4743K
27k
C312
R312
0.33
R311
0.33
27k
C311
390p
R351
2.2k
R331
2.2k
0.047
C341
C902
47k47k
R314R304
C301
0.33
0.33
C302
2.2/50
C321
390p
C314
C313
390p
390p
C303
C304
Q351
Q341
2SD1781K/QR/-X
Q321
2SD1781K/QR/-X
100
R323
0.047
QNN0489-001
C321
C316
4.7/25
2SD1781K/QR/-X
Q331
2SD1781K/QR/-X
100
100
R333
R343
J321
100
L901
R353
R901
1k
D971
RB160M-30-X
Tuner signal
CD signal
C320
0.022
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
RB160M-30-X
1N5401-F64
QQR1362-001
RB160M-30-X
0.1
C971
CN901
QNZ0112-001
C901
2200/16
D972
C317
100P
100P
100P
100P
100P
100P
100P
100P
47/16
D901
0.1
0.1
0.1
0.1
R971
C961
C962
C963
C964
C965
C966
C967
C968
D991
D992
D993
D994
D995
D996
D997
D998
2.2k
4.7/25
C318
C319
0.022
22/16
FR-
FR+
FL+
RR-
RL+
FL-
RR-
RR+
FR-
FR+
RL-
RR+
FL-
FL+
RL-
RL+
F1
QMFZ047-150-
C315
C322
C323
C324
C325
R972
2.2k
Front signal
Rear signal
47k
R313
47k
R303
R301
27k
R302
27k
R342
820
R352
820
D351
1SS355-X
R341
2.2k
D341
1SS355-X
D321
1SS355-X
R321
2.2k
D331
1SS355-X
R322
820
820
R332
C784
100/16
R902
9.1k
4.7k
R903
4.7k
C852
0.01
10k
LEVEL
OUTFL
OUTRL
270
270
47k
47k
R164
R165
D782
1SS355-X
UN2211-X
220/10
220/10
C908
C909
R881
47k
C881
47k
R174
Q782
22/16
C907
47k
R175
220/10
VOLDA
VOLCL
OUTRR
OUTFR
Q977
UN2211-X
D902
C905
AN80T07
C919
47/16
C913
10/16
IC901
47k
10/16
C910
47/16
R979
R978
R980
C904
51k
0
2SB709A/R/-X
10/16
C911
0.1
1K
R783
Q976
1SS355-X
C906
0.01
R882
4.7k
R977
12k
Q784
UN2111-X
27k
R976
UDZS11B-X
R904
C903
C912
C915
0.1
100/16
C851
10/16
C914
RB160M-30-X
0.01
D851
D852
RB160M-30-X
47/16
R851
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
HAB C DE FG
CD servo control section
KD-S891R
R536
DMO
15k
FOO
8.2k
FMO
4.7k
VREF
R538
33K
R537
0
820
Q501
2SB1322/RS/-T
C503
100/10
CDRW
C527
0.0068
TE
47/10
C501
AOUTR-
AOUTR+
AOUTL+
AOUTL-
2SB1132/QR/-X
330
TRO
R514
Q502
C589
R581
8.2k
4.7/25
C588
4.7/25
C598
4.7/25
C599
4.7/25
47u
L541
47u
L542
4.7k
4.7k
4.7k
4.7k
R557
R556
R555
R554
BUS0
BUS1
BUS2
BUS3
R582
R592
R591
8.2k
8.2k
8.2k
C568
C569
C570
C571
C541
100/10
BUCK
CCE
RST
C581
3300p
C591
3300p
0.01
0.1
100/10
100/10
C542
0.01
R558
10k
R583
R593
8.2k
8.2k
100p
C567
100/10
C566
C543
1/50
0.01
C565
R553
R594
2.2K
R560
R584
180
180
C593
C583
270p
270p
1M
2.2K
2.2K
R562
R561
1k
R598
R588
DMO
100
C584
0.1
R551
R597
C594
1k
R587
1k
0.11k47/6.3
C595
FOO
C545
0.01
C561
100/10
C560
100/10
C544
TRO
C559
C558
C557
0.01
C556
R548
R547
R546
R550
100
100
R549
FMO
100
C585
47/6.3
0.01
C562
R552
47u
L544
R595
R596
R559
1.5M
R541
5.6k
R586
R585
180
0.047
0.047
470p
470p
0
0
0
IC541
TC94A14FA
C552
0.033
C550
C549
C548
C547
0.015
6.8K
180
C582
270p
IC581
NJM4565M-WE
C592
270p
6.8K
C551
R542
0.047
C554
0.033
C553
47k 0.047
C546
C597
0.01
C573
0.01
SEL
TEB
RFGC
TE
RFDC
FE
RFRP
C572
RF
100/10
47p
R544
C596
100/10
0.047
C555
R545
10k
0.01
0.0027
0.01
10K
R543
470k
CD.R
CD.L
9V
CD.R
A-GND
CD.L
PSW
SW1
SW2
LM0
LM1
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST
CD8V
GNDGND
MP3REQ
MP3RESET
MP3STBY
MP3DIN
To Main amplifier section
MP3DOUT
MP3CLK
DAC-CDTI
DAC-CCLK
DAC-CSN
DAC-PDN
CDRW
SW5V
VDD5V
CDON
CN501
GND
FEEDVF2
FEED+
VCC
GND
VT2
SW1
VT1
5
SW2
VF1
PSW
VR
SPINDLELD
SPINDLE+
FOCUSVREF
FOCUS+
MD
TRACKING+
TRACKING-
4
3
QGB2027M4-22S
FEED-
VF2
FEED+
VCC
VT2
SW1
VT1
SW2
VF1
PSW
SPINDLE-
SPINDLE+
FOCUS-
VREF
FOCUS+
TRACKING+
TRACKING-
R505
LM1
R506
8.2k
R539
VR
150
LD
MD
VREF
C533
0.01
VF1
VF2
VT2
VT1
VCC
C521
0.01
R523
R524
R525
R526
R534
15k
C522
0.01
82k
82k
330k
330k
C532
82p
IC521
3k
R508
R511
LM0
R512
1.5k
R533
1k
R532 R531
2k 10k
TA2157FN-X
C523
100/10
IC501
LA6579H-X
1.5k
1.8k
C534
12k
R509
R513
5p
R507
R535
R510
100
C524
0.01
20k
6.8k
0.047
0.047
C506
C505
C504
0.047
8.2k
FEED-
FEED+
SPINDLE-
SPINDLE+
FOCUS+
FOCUS-
RF
RF
C531
0.1
RFGC
LD
0.1
C530
MD
Q521
2SB1241/QR/-T
C525
R527
R528
RFRP
SEL
C507
TRACKING+
TRACKING-
100/10
56k
R530
TEB
100/10
22
22
0.047
C529
R529
82k
R504
R502
R503
R501
33k
C502
0.01
C528
0.01
FE
RFDC
IC461
NJU7241F25-X
C461 C464
0.1 0 .1
C463C462
100/6.3100/6.3
2
L403
47u
C411
100/10
C412
0.01
R423
C413
330
0.33
R424
330
0.027
C414
C416
100/10
C415
0.01
C417
100/10
C418
0.01
47
1
R402
R401
QAX0413-001Z
X401
R403
10k
2.2M
C420
22p
C419
R404
22p
10k
C402
0.01
C401
1/50
C403
0.01
L402
R425
C421
C422
0.01
100/10
47u
47
IC401
TC94A20F-011
R411
C427
220p
L401
47u
0
C409
0.1
C408
0.01
C406
0.1
C404
0.01
47k
R452R456
4.7K
4.7K
R458 R454
C440 C430
0.01
R451
22k
R453
2.2K
R455
2.2K
R457
2.2K
4.7K
UN2211-X
R440
1k
MP3CLK
MP3STBY
MP3DOUT
0.01
MP3REQ
MP3RESET
UN2211-X
Q430Q440
R430
1k
MP3DIN
4.7K
R563
UDZS5.1B-X
4.7K
R564
4.7K
R565
C483
0.1
D481
C482
R481
270( 1/8W)
0.1
C481
47/10
AOUTL+
AOUTL-
AOUTR+
AOUTR-
IC481
AK4381VT-X
DAC-CDTI
DAC-CCLK
DAC-CSN
DAC-PDN
L543
47u
UN2111-X
Q541
CDON
UN2211-X
Q542
NJU7241F33-X
IC471
C475
C472
0.01
C473
C474
220/6.3
C471
220/6.3
0.1
CD signal
AB CD E F G
2-3
KD-S891R
KD-S891R
LCD & Key control section
5
JS690
QSW0863-002
IC602
S46
S47
S1S2S3
RPM6938-SV4
10K
D644
R670
UDZS5.1B-X
C611
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
IC601
LC75823W
S8
S9
S4
S5S6S7
S33
S34
S35
S10
S11
S13
S12
S14
S15
0.012
S16
4.7/6.3
C612
470
R671
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
R675
DETACH
VMC0335-001
CJ601
10V
ACC5V
REMOCON
ENC1
ENC2
DIMMER
0
LCDCL
LCDDA
To
Main amplifier
LCDCE
KEY0
KEY1
KEY2
section CN701
0
R672
47K
R674
R673
47K
0.015
0.015
C614
LCD1
QLD0256-001
C613
4
S12
R603
820
820
S8S9S10
S11
S13
S14
S15
S16
R601
820
S601
S602S604S605S606
R606R607R610 R609 R608
820
S608
S607
R612
820
S613
S614S615S616S617S618
S2
S3S4S5S6S7
S1
R605
R604
1.8K
1.2K
2.7K 1.8K 1.2K
3
S603
R602
3.9K
R616
R615
S609S610S611S612
R614 R613
1.2K 8201.8K2.7K
S22
S17
S19
S20
S21
S18
KEY0
KEY1
KEY2
S28
S23
S24
S25
S26
S27
S30
S31
S29
S32
S33
S34
D603
D601
D614
820
R636
1K
R645
D602
R644
D604
D605
680
680
1K
R643
R642
R641
S35
D607
680
D608
D606
S40
S39
S41
S37
S38
S42
S43
D609
D610
390
R639
D611
D612
390
R638
S44
D613
820
R637
S36
680
R640
S50
S49
S46
S47
S48
S45
S50
S49
S48
R663
0
R651
1K
10K
R653
ENC2
ENC1
D642
1SS355-X
180k
C603
10/6.3
D618
D615
D616
D617
1K
R635
1K
R634
D620
UDZS6.2B-X
D619
1.2K
R633
D622
D621
1.2K
1K
1K
820
R631
R632
R647
R646
SML-310LT/MN/-X
D645
D731
NSPW310BS/BRS/
430
R659
430
R660
D732
NSPW310BS/BRS/
R662
0
Q641
2SB815/7/-X
1K
Q642
UN2211-X
R648
47K
R649
DIMMER
R658
UDZS5.1B-X
680P
C602
D641
R657
C601
0.022
10K
R654
LCDCE
10K
LCDCL
R655
LCDDA
R656
10K
51K
2
1
2-4
HAB C DE FG
Printed circuit boards
Main board
5
KD-S891R
Forward side
R703
R765
L544
C503
C541
R514
C712
C544
L541
C905
X702
D710
L542
C714
C914
R704
L701
C710
R804
Q542
R705
C851
C908
R706
R707
R806
R904
D851
C193
Q541
R708
IC702
R720
L702
R743
R744
R745
IC801
C909
R721
X701
R809
R763
C903
R851
R164 R165
C170
IC161
R719
R753
R756
R807
R808
R810
R747
R748
R749
CN701
R713
C708
C169
C711
R712
R742
C180
C907
R760
R732
C173
R771
C179
R759
IC701
R772
R43
C32
C771
J801
D244
C163
C192
C172
C50
Q31
R726
IC771
C171
R44
R722
R729
R725
R72
C244
C191
C49
D331
R331
X31
R758
D321
C161
C162
R10
R751
C40
IC71
Q321
C31
R723
C33
R321
IC31
C242
C41
R734
Q10
C78
R736
J321
Q341
D351
D341
R351
R341
C241
L1
Q6
C4
Q8
B5
C42
C91
Q91
Q81
X71
R83
C77
C73
C71
R735
R709
R746
R750
J1
TU1
R7
R6
R8
R56
C43
C48
R93
R741
R53
R57
R54
C54
C81
Q52
C52
R52
Q51
C1
C5
Q53
R59
C55
R58
IC901
R977
C566
D891
D892
Q891
IC501
R553
R505
R891
C901
C596
IC541
R453
R454
R456
R455
C881
R892
C505
Q881
C567
L901
R901
C902
R882
R881
D781
R506
C507
C506
R501
R503
C546
R545
C560
C569 C570
C559
R552
R551
C913
C919
Q781
C558
CN901
4
C318
D991
R308
C314
C313
C304
C303
IC301
3
C525
C523
C475
C462
2
C461
C463
L403
C414
D992
C472
C411
C317
L402
D993
IC471
IC461
IC521
C422
C412
D994
C473
IC401
C421
C415
C961 C962
C316
CN501
C315
Q521
L401
C416
C964
D996
C404
C963
D995
C529
C474
C427
D998
R524
R583
C966
C301
C585
C599
C965
D997
R588
R586
R585
C968
R525
C418
C967
C598
R404
R526
R584
C481
C583
R587
C584
R523
C582
C311
C302
R597
C594
C417
R539
R425
C403
C588
C402
C524
C592 C593
R562
C312
R313
R596
R595
R594
R593
C597
X401
R513
IC481
R561
R564
C401
R303
R304
C589
R314
IC581
R565
D901
R598
C483
R509
R563
R510
R512
C595
C561
R560
R451
R452
R458
R457
R508
R511
C501
R504
C572
C551
C781
C555
R548
R979
C784
D784
C554
R547
R978
Q976
Q977
R980
C547
R559
R502
R544
C543
C553
R546
R543
C557
R550
Q501
R541
C556
R549
C904
C910
Q502
R542
C549
C552
C548
L543
C801
1
AB C
2-5
KD-S891R
Main board
5
R322
R323
R332
R333
R342
R343
R352
R353
R242
C83
R241
R246
R245
C34
R32
R2
C82
R81
R243
R9
R84
CN701
Q9
Q1
R244
C243
D4
Q241
D5
C46
R38
C47
Q5
C73
J321
L1
R4
C38
C77
B902
R42
C75
C76
C192
D701
VPP
C705
D242
R714
C707
R247
C179
C703
C704
C701
C702
D703
C173
D243
C169
C713
RD
R248
D706
J801
C180
D702
R739
R737
C907
R755
R701
C709
Q331
C45
X31
C44
D84
C74
R71
C40
R728
C161
R41
C171
R34
R35
R36
R37
D707
C244
C162
R40
D708
D705
B4
D713
TD
C706
D704
C191
C37
C36
C35
C163
C172
Q351
C241
D1
D2
C242
Q7
C4
R1
R5
R31
R39
C31
C43
B6
R33
C33
C9
C91
C81
R91
C92
R92
R82
X71
Q84
R74
C72
R73
D712
C716
C718
C717
D709
C321
J1
C341
4
3
2
TU1
B1
C8
C2
C6
C1
C3
C39
C94
C95
C84
C85
C51
R51
Q2
C5
R3
Q3
C55
R55
C53
R754
C711
IC901
C903
C170
R738
X702
R752
C912
R174
R175
X1
R740
D852
C193
VDD
VSS
R757
Reverse side
C911
C851
R710
X701
R711
C914
C909
C166
SCK
B901
C164
C176
R556
R555
R554
C915
R162
C174
C719
RESET
C906
D902
C165
R172
C167
C175
C712
C710
R803
C905
R163
C714
R805
C908
C168
C715
C194
R161
R182
D240
C177
R558
R802
C904
R173
R557
C544
C503
C541
R801
C178
R181
R171
R715
C910
D241
R702
C545
C543
C502
C784
R783
Q501
C542
B3
C501
R716
Q782
R976
D782
C920
C782
Q784
C572
C570
C781
R440
C902
C919
C913
R901
C901
C571
C569
R903
C881
C568
Q430 Q440
C430 C440
C596
R902
L901
C573
C565
R430
C595
C561
C504
R403
R971
R972
D972
D971
C566
D901
C562
D481
C419
R301
R302
C591
R312
R507
R592
CN901
C533
R591
C401
X401
C531
R535
R311
R531
C589
C302
C891
R481
C312
C521
C482
C325
C311
C550
C588
C581
C481
R581
C420
Q521
RF
R582
R401
C324
C301
C598
R402
C585
C417
C852
C599
C474
C586
C529
C416
C323
C971
C316
CN501
C473
C406
C530
C408
C422
C413
C534
C528
C409
R423
R411
C322
C317
C315
VREF
R424
C471
C411
C318
C522
R534
R532
R533
C532
R530
C475
C464
C462
C463
R527
R528
R538
R537
R529
R536
C527
C319
IC301
C320
C525
C523
2-6
1
AB CD
KD-S891R
Front board
5
D622
S601
R601
R631
D620
R647
R602
4
D602
D615
D616
D617
S618
S602
JS690
D601
R646
IC602
LCD1
D621
S603
R603
S604
D605
R604
S605
Forward side
D604
R605
D603
S606
D608
S607
R606
D607
S608
R607
D606
S609
D614
R608
R609
D731
D732
S610
S615
D611
R610
D613
D619
D610
D609
S613
D618
S616
S617
S614
D612
S612
S611
3
R612
R613
R632
R641
R637
R633
R657
R662
R663
R675
R640
C602
R659
R660
R614
R615
R616
D731
D732
R654
R656
R655
CJ601
Reverse side
IC601
R643
R642
R670
R635
R634
IC602
JS690
R644
R645
D644
R671
R653
C603
C612
C611
C613
R674
C614
R658
R672
C601
D645
R651
R673
D642
D641
Q642
R649
R648
Q641
R639
2
R638
R636
1
AB C
2-7
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49876SCH)
Printed in Japan
WPC
SERVICE MANUAL
CD RECEIVER
4987620037
KD-S891R
Area suffix
E ----------- Continental Europe
EX --------------- Central Europe
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.49876
2003/7
SPECIFICATION
AUDIO
AMPLIFIER
SECTION
TUNER SECTION Frequency Range FM 87.5 MHz to 108.0 MHz
CD PLAYER
SECTION
GENERAL Power Requirement Operating Voltag e DC 14.4 V(11 V to 16 V allowance)
Maximum Power Output Front 45 W per channel
Rear 45 W per channel
Continuous Power
Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Output Impedance 1 kΩ
[FM Tuner] Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
Alternate Channel
Selectivity (400 kHz)
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 30 dB
Capture Ratio 1.5 dB
[MW Tuner] Sensitivity 20 µV
[LW Tuner] Sensitivity 50 µV
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
Front 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more
than 0.8% total harmonic distortion.
Rear 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more
than 0.8% total harmonic distortion.
Treble ±10 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.0 V/20 kΩ load (full scale)
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
65 dB
Sensitivity 35 dB
Grounding System Negative ground
Allowable Operating
Temperature
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 150 mm
Mass (approx.) 1.3 kg (excluding accessories)
0°C to + 40°C
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Design and specifications are subject to change without notice.
1-2 (No.49876)
1.1 Safety Precautions
SECTION 1
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.
(No.49876)1-3
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 dama ge by static electricity
Static electricity in the work area can destroy the optical pickup (laser dio de) 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 sh eet) 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 befo re installation, both sides o f the laser diode on the replacem ent 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) I t 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
1-4 (No.49876)
Pickup
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.49876)1-5
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the front panel assembly
(See Fig.1)
(1) Press th e release button and remove the front panel as-
sembly.
3.1.2 Removing the front chassis assembly
(See Figs.2 to 3)
• Prior to performing the following procedure, remove the front
panel assembly.
(1) Remove the screw A on the left side of the main body.
(2) Re lease the two joints a and two joints b on both sides
of the main body.
(3) Re lease the two joints c on the bottom side of the main
body and remove the front chassis assembly in the direction of the arrow.
Front panel assembly
Joint a
Release button
Fig.1
Joint b
A
Joint a
Front chassis assembly
Fig.2
Front chassis assembly
Joint c Joint c
Fig.3
Joint b
1-6 (No.49876)
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