JVC KD-S687 Quick start guide

AB CD E F G
1
2
3
4
5
2-1
KD-S687
REST
SW
LOADING
MOTOR
FEED
MOTOR
SPINDLE
MOTOR
SW1 SW4
PICK UP
REST
LOADING
FEED
SPINDLE
A,B,C D,E,F
TRACKING
FOCUS
SW1 SW4
CN501
IC561
SERVO
CD
DRIVER
IC571
CD
LPF
IC501
RF AMP
IC151
DSP
&
DAC
LOADING
LOADING
SPINDLE
FEED
TRACKING
FOCUS
VA,VB,VC
VE,VF,MD,LD
LO
RO
CJ601
IC602
REMOCON
JS690
ENCODER
ENC1
ENC2
REMOCON
IC601
LCD
DRIVER
LCD1
CJ961
TU1
FM/AM
TUNER
IC701
MICON
IC161
E.VOL
FM/AM
FMOSC
IFC
AGC
S.METER
SD/ST ,MONO
S.METER
AMEO
FMEO
IC302
POWER
AMP
IC901
REGULATOR
SPK
BATTERY
EACH BLOCK
TU.LCH
TU.RCH
CD.L
CD.R
CJ302
LINE OUT
LF
RF
LR
RR
LM0
LM1
COM1
COM2
COM3
S1 S50
LCD_CO
LCD_CLK
LCD_SO
ANT
CDON
PS2
CJ1
ANT
Block diagram
LD.MD
SW1 SW4
REST FEED
CD. L
CD. R
DMO,FMO,FOD,TRO
RF-GC,RF
RFRP,TE
SEL,TEB
RFDC,TE
BUS0 BUS3
BUCK,CCE
RST,CDON
CD-RW
IC601 S619
KEY
MATRIX
KEY0,KEY1,KEY2
SI
SC
CN901
LFO
LRO
RFO
RRO
LRO
RRO
REMOCON
ENC1
ENC2
LCD.CL
LCD.CE
LCD.DA
KEY0
KEY1
KEY2

Tuner signal
CD signal
Front signal
Rear signal
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
HAB C DE FG
1
2
3
4
5
KD-S687KD-S687
2-2
Main amp section
Standard schematic diagrams
D905
R711
R713
R734
R976
X701
C706
C705
CJ1
R719
R717
R722
R720
R718
D903
IC701
C35
C803
L1
Q963
C905
C710
C333
Q964
R747
R193
VDD
D101
R701
R906
C910
R902
C331
R194
D705
R892
R907
R908
R728
R905
R721
D976
R841
R183
VSS
C320
C701
R184
Q241
C321
C351
D907
C191
C914
C341
C802
C165
C597
Q977
BZ841
IC901
C204
R901
R891
Q331
R893
C182
D906
C181
C192
C711
C891
C906
C913
C915
C317
D244 D245
D21 D22
C303
R702
C313
C314
C315
C316
C306
C305
C304
CJ321
Q891
Q321
Q351
Q341
B962
R307
Q301
R961
R842
R305 R306
Q976
C902
L701
R355
R341
R351
Q841
R803
C167
R710
R750
R810
R809
Q1
R733
TU1
R808 R806 R345
R342
CJ691
R807
Q23
R813
R812
R248
R321
R332R331
R322
R335
R325
C245
C318
R241
R242
R243
R245
D242
R24
R685
R686
C319
C177
C176 R173
Q21
Q22
CJ322
C31
Q31
Q32
R724
C709
R732
VPP RESET
R726
R246
D704
C703
R723
R712
X1
R175
R176
C901
R703
LM0
LM1
CN901
D706
D709
D331
D341
D708
D901
D707
C166 R163
C175
C164
R22
C203
C32
R32 R33
R34
C212
C211
C173
C172
C163
C162
R172
R171
R162
R161 C161
R1
C171
C587
D703
D702
D701
R971
Q971
D971
D972
R3
R704
IC161
C41
R731
Q41
Q42
C42
R42
R41
R43
R729
C702
R716
R727
R748
C300
C195
C196
C186
C185
IC302
R316
R221
R352
R725
R739
C16
R815
C17
R714 R715
R814
C14
R26
C708
R968
R746
C24
R9
R967
R709
C976
R903
C908
R706
C193
C904
C977
R909
C85
C5
C909
C907
D977
C975
D908
C214
C201
D301
R191
R192R182
R181
R196
R185 R195
R186
Q2
L901
C308
R25
L702
D31
R802
R804
R805
R811
C83 C84
R707
C82 R82
R81
R84
R83
C21
R735
C194
C183
R801
C184
C801
IC801
R5
R23
R244
C244
D243
C242
R27
C903
C309
C81
D1
D2 C1 C18
C2
C12
C33
C841
C22
R708
R247
C243
R308
C707
R744
R21
C202
C205
R201
C215
R211
C174
C213
R31
R2
C178
R4
R8
R745
C3
C216
C361
C362
R749
R10
C180
C179
R249
R188 R187
R198
R197
C912
C363
C364
CRS03-W
47k
47k
100k
47k
QAX0406-001Z
22p
22p
QNB0100-002
10k
10k
4.7k
4.7k
4.7k
1SS133
UPD178078GF-559
47p
10/16
4.7u
2SB709
220/10
0.1
0.047
UN2211
10k
27k
UDZS10B-X
4.7k
1k
10/16
9.1k
100P
27k
UDZS6.2B-X
2.2k
2.2k( 1/8W)
2.2k( 1/8W)
47k
1.2k
10k
1SS133
2.2k
27k
22/16
220/10
27k
2SD601
100P
100P
CRS03-W
2.2/25
0.1
100P
10/16
0.0047
10/16
UN2111
QAN0009-001Z
HA13164A
470p
1k( 1/4W)
10k
2SD1048/6-7/-X
47k
2.2/25
CRS03-W
2.2/25
2.2/25
1000p
0.1
2.2/50
10/16 10/16
0.022
1SS133 1SS133
1SS133 1SS133
100p
4.7k
100p
100p
100p
100p
100p
100p
100p
UN2211-X
2SD1048/6-7/-X
2SD1048/6-7/-X
2SD1048/6-7/-X
0
4.7k
UN2211-X
51k
1k
47k 470
UN2111
0.01
4.7u
2.2k
1k
1k
UN2211-X
0
0.22
47k
47k
10k
330
UN2211-X
47k
QAU0257-001
22k 47k
2.2k
100
VMC0334-001
100
UN2211-X
47k
47k
100
1k
1001k
100
2.2k
2.2k
1/50
100/16
220k
220k
1k
12k
1SS133
2.2k
47k
47k
47/16
0.22
0.22
3.3k
2SB1197
2SB709
QNZ0095-001
QAM0254-001
2.2/50
2SD601
2SD601
47k
0.1
10k
0
180k
UDZS6.2B-X
0.1
47k
47k
2.2k
2.2k
2200/16
4.7k
QNZ0002-001
UDZS6.2B-X
UDZS6.2B-X
1SS133
1SS133
UDZS6.2B-X
1N5401-F64
UDZS6.2B-X
0.22
3.3k
0.0047
10/16
1k
0.0047
0.001
1k 10k
470
0.1
0.01
0.1
470p
0.1
470p
6.8k
220k
6.8k
220k
10/16
1k
10/16
10/16
UDZS6.2B-X
UDZS6.2B-X
UDZS6.2B-X
47k
2SD601
ISS355
ISS355
1k
47k
BD3860K
0.056
47k
2SC3661-X
2SC3661-X
0.012
3.9k
1k
1k
47k
0.1
10k
0
10k
0.022
1/50
1/50
1/50
1/50
LA4743K
47k
0R0
100
47k
47k
15p
1k
56p
10k 10k
1k
0.01
15
0.01
10k
10k
220/16
8.2k
27k
2.2k
47/6.3
4.7k
220/10
2.2k
220p
22/16
100/16
10k
0.01
5p
220/10
0.01
UDZ11B-X
0.082
CRS03-W
470p
0.01
1SS133
10k 10k
10k 10k
27k
27k 27k
27k
UN2211-X
QQR0703-001
4.7/25
15
4.7u
MTZJ10C-T1
100k
10047k
100k
0.033 0.033
2.2k
1/50 2.7k
2.7k
4.3k
4.3k
10/16
10k
220p
220p
100k
220p
0.01
HD74HC126FP
10k
10k
56k
0.22/50
1SS133
22/16
10
47/16
4.7/25
1/50
1SS133
1SS133
10/16
150p
0.22/50
0.1/50
220/10
0.1/50
0.022
0
22k
0.047
1k
220/10
2.2k
10k
0.1
4.7/25
1M
4.7/25
1M
10/16
0.0047
1.5k
47
47/16
47k
22k
2.2k
0.1/50
0.1
0.1
0.1
0
10k
100/16
0.01
47k
27k
27k
27k 27k
4.7/25
0.1
0.1
CD.R
LRO
AMEO
IF.C
FM/AM
JBUS.INT
CH.RCH
CDON
MUTE.CONT
CDON
TU.RCH
PS2
MONO
REST
POWER
TELMUTE
RF+
SEEK/STP
R5V
ANT
ANT
LFO
SW3
TELMUTE
TEL
TEL
LCD.DA
JBUS.SI
9V
CD-RW
CD.L
CD8V
JBUS.SI
SD/ST
RF-
RR-
LR-
LR+
LF-
LF+
RR+
FMEO
9V
DETACH
CH.LCH
FM.OSC
RRO
JBUS.SO
CCE
RST
BUCK
R5V
JBUS.SCK
SW5V
TU.LCH
JBUS.SO
JBUS.I/O
RFO
JBUS.SCK
JBUS.INT
SW1
REMOCON
SW2
FMEO
SW4
ENC2
JBUS.I/O
LM0
AMEO
LM1
CD8V
BUS0
BUS1
MUTE
BUS2
BUS3
CD.R
A-GND
CD.L
SI
SC
FEED+
FEED-
ILL-10V
3.3V
ENC1
LCD.CL
LCD.CE
KEY0
KEY1
KEY2
ILL_10V
LFO
MUTE.CONT
SEEK/STP
MUTE
SW3
REST
BUZZER
LCD.CL
SW4
BUZZER
RFO
SW2
LM0
FM.OSC
S.METER
MONO
FEED-
RR-
IF.C
KEY2
TU.RCH
POWER
TU.LCH
LF-
ENC1
LRO
PS2
A-GNDA-GNDA-GND
RF-
RR+
LR-
FM/AM
ILL_10V
REMOCON
RF+ LF+
SD/ST
RST
ENC2
R5V
CH.LCH
BUS3
KEY1 VDD
BUS2
BUS1
BUS0
CCE
BUCK
CH.RCH
9V
LCD.CE
LM1
CDON
S.METER
KEY0
VDD
RRO
SW1
CD-RW
LCD.DA
LR+
SC
SI
DETACH
FEED+

CD signal
AB CD E F G
1
2
3
4
5
2-3
KD-S687
CD servo control section
R539
D561
TP1 TP2
R584
L523
L521
L522
R591
R517
C555
R593
R533
C547
C594
IC521
Q501
R508
R507
C505
C514
R509
C503
C502
C504
R510
C509
C510C511
R512 R511
R513
R514
C512
C508
C513
C501
R524
R523
R521
R522
R525
C524
C523
C525
C526
C527
C528
R526
C533
C534
R566
C530
R529
R530
C537
C538
R538
Q561
R516
C549
R515
C561
C548
C507
R575
R571
R501
R502
R506
R503
R505
R504
C563
R574
R563
C574
C584
C572
R562
R581
C571
C582
C553
C554
X521
Q521
R564
C581
Q522
R585
R561
R583
R572
R582
R573
C591
C573
C583
C562
CN501
C593
L524
R592
R594
R565
C531
R527 R528
C535
R531 R532
C536
C539
C540
C522
R537
R536
R535 R534
C550
C551
C552
C521
IC501
C544
C545
C541
C546
IC561
IC571
C592
2.2M
DSK10C-T1
150
47u
47u
47u
22k
47k
120p
22k
1M
0.1
0.001
TC9490FA
2SB1241
22
22
100/10
5p
82k
100/10
0.01
0.01
47k
100/10
0.1
0.1
2k 10k
1k
27k
82p
0.01
0.01
0.01
33k
470k
5.6k
47k
10k
0.015
47p
0.01
0.0027
0.01
0.033
0
470p
470p
8.2k( 1/10W)
0.033
0
0
0.047
0.047
10k
2SB1322
820
0.01
100
47/6.3
100/10
0.0068
10k
15k
82k
82k
150k
82k
150k
82k
22/10
150
5.6k
820p
820p
4.7/25
6.8k
15k
820p
4.7/25
10p
10p
UN2111
6.8k
820p
UN2211
10k
10k
12k
33k
33k
12k
100/10
120p
120p
0.01
QGB2027M1-26S
47/6.3
47u
22k
22k
20k( 1/10W)
0.047
100
100
0.047
100 100
0.047
100/10
0.01
100/10
4.7k
4.7k
4.7k 4.7k
1/50
100/10
0.01
0.01
TA2147F
0.01
100/10
0.01
100p
LA6574H
QAX0413-001Z
NJM4565M-WE
47/6.3
FMO
CD8V
DMO
FEED-
A-GND
3.3V
LM1
LM0
LD
FOO
TRO
REST
SW1
SW2
SW3
SW4
CD.L
CD.R
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
CDON
CD-RW
SW5V
CD.L
CD.R
RST
CDON
CCE
SW5V
BUCK
RF
VREF SEL
FEED+
TEB
TE
RFRP
VD
VF
VB
VC
VA
MD
VREF
VE
VCC
9V
RFDC
FE
9V
RFGC
RST
BUS3
VC
SW4
BUS2
BUS1
BUS0
SW3
SW1
SW2
LOADING-
LOADING+
FOCUS+
TRACKING-
FEED-
SPINDLE-
CD-RW
SPINDLE+
FEED+
REST
FOCUS-
TRACKING+
VD
VA
VB
VE
VF
LM0 LM1
LOADING- LOADING+ SPINDLE- SPINDLE+ FEED- FEED+ FOCUS+ FOCUS- TRACKING- TRACKING+
LD
MD
SEL TEB RFDC
RFGC
FE RF
RFRP
3.3V
FOO
TRO
FMO DMO
TE
!
!
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.

HAB C DE FG
1
2
3
4
5
KD-S687KD-S687
2-4
R601
R658
R653
C603
D642
D643
D616
D613
JS690
D615
S601
IC602
R661
R662
D614
D609
D611
D610
D606
D608
D607
D603
D605
D618
D617
S606
D641
IC601
D604
C681
D619
S605
D621
D620
D622
R605
D624
D623
S613
R652
R657
C601
C602
R654
R655
R656
S607
S602
S603S604
S608S609
S610
S611S612
S614S615S616S617S618
R614 R613R615R616
R606R607
R611 R610 R609 R608
R602R603R604
R651
S619
R612
LCD1
D601
D602
CJ601
R659
R636
R638
C612
C611
R648
R649
R645
R639
R637
R681
R640
R642
R644
C682
R641 R643
R647
D644
R634 R635
R632
R633
D625
D646
R660
R646
R631
D645
1.8k
180k
10k
10/6.3
1SS335-X
1SS335-X
QSW0793-001
RPM6938-SV4
10k
470
UDZS5.1B-X
PT6523LQ
0.022
3.9k
2.2k
51k
0.022
680p
10k
10k
10k
1.2k 8201.8k2.7k
8208203.9k 2.7k 1.8k 1.2k
1.2k1.8k2.7k
2.2k
820
VCM0335-001
390( 1/8W)
510
4.7/6.3
0.012
510
100
510
0.022
510
820
UDZS6.2B-X
390( 1/8W)
820
LCD.CE
LCD.DA
LCD.CL
LCD_SO
LCD_CLK
LCD_CO
Key0
Key1
REMOCON
Key2
ENC1
R5V
KEY0
KEY1
KEY2
S17
S18
OSC
ENC2
GND
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32S49
S50
ILL_10V
COM3
COM2
COM1
CE
CLK
DATA
BUS2
BUS1
BUS3
S3 S4 S5 S6 S7 S8 S9 S10 S2 S11 S1 S12 S13 S14 S15 S16 S33
S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48
COM2
COM3
COM1
S1
S2 S3 S4
S5 S6
S7 S8
S9
S10 S11 S12
S13
S14
S15
S16 S17
S18
S19 S20 S21
S22 S23
S24 S25
S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39
S40 S41
S42 S43 S44 S45
S46 S47 S48 S49 S50
BUS4
LCD & key control section

AB C
1
2
3
4
5
KD-S687
2-5
Printed circuit boards
Main board(Forward side)
B962
BZ841
C1
C2
C3
C12
C21
C31
C33
C81
C82
C161
C162
C164
C171
C172
C173
C174
C178
C180
C181
C182
C183
C184
C185
C186
C191
C192
C193
C194
C195
C196
C203
C204
C205
C213 C214
C215
C242
C244
C245
C303
C304
C305
C306
C308
C309
C313
C314
C315
C316
C318
C319
C320
C503
C505
C509
C513
C514
C522
C539 C545
C548
C550
C551
C561 C563
C571
C572
C573
C574
C581
C582
C583
C584
C587
C591
C592
C593
C597
C701
C707
C802
C803
C841
C901
C903
C904
C905
C906
C908
C909
C910
C912
C913
C914
C915
C976
C977
CJ1
CJ321
CJ322
CJ691
CN501
CN901
D1
D2
D21
D22
D31
D242
D243
D244
D245
D301
D331
D341
D561
D901
D903
D905 D906
D907
D908
D976
IC161
IC302
IC501
IC521
IC561
IC571
IC701
IC801
IC901
L1
L521
L522
L523
L524
L701
L702
L901
Q321
Q331 Q341 Q351
Q501
Q561
R31
R41
R161
R171
R183
R184
R185
R186
R187
R188
R193
R194
R195
R196
R197
R198
R221
R305 R306
R307 R308
R316
R325 R331
R335
R341
R345
R355
R533
R571
R574
R581
R584
R685
R686
R704
R718
R720
R722
R727
R802
R901
R902
R903
R907
R908
R909
R961
TU1
X521
X701
B301
C24
D601
D602
D603
D604
D605
D606
D607
D608
D609 D610 D611
D613 D614 D615 D616 D617
D618
D619
D620
D621
D622
D623
D624
D625
D644
IC602
JS690 LCD1
R601
R602
R603 R604 R605
R608
R609
R610
R616
R632
R633
R634
R635
R638
R639
R644R645
R655
S601
S602 S603 S604 S605 S606
S607
S608
S609
S610
S611
S612
S613
S614 S615 S616
S617
S618
S619
D645
GEB10018A
S1B
Front board(Foward side)

AB C
1
2
3
4
5
KD-S687
2-6
BZ841
C1
C2
C3
C5
C12
C14
C16
C17
C18
C21
C22
C31
C32
C33
C35
C41
C42
C81
C82
C83
C84
C161
C163
C164
C165
C166
C167
C171
C174
C175
C176
C177
C178
C179
C180
C181
C182
C185
C186
C191
C192
C195
C196
C201
C202
C205
C211
C212
C215
C216
C242
C243
C244
C245
C300
C308
C309
C317
C318
C319
C320
C321
C331
C333
C341
C351
C361
C362
C363
C364
C501
C502
C503
C504
C505
C507
C508
C509
C510
C511
C512
C521
C522
C523
C524
C525
C526
C527
C528
C530
C531 C533
C534
C535
C536
C537
C538
C539
C540
C541
C544
C545
C546
C547
C548
C549
C550
C551
C552
C553
C554
C561
C562
C563
C572
C582
C587
C591
C592
C593
C594
C597
C701
C702
C703
C705
C706
C707
C708
C709
C710
C801
C802
C803
C841
C891
C901
C902
C903
C904
C905
C906
C907
C908
C909 C910
C912
C913
C915
C975
C976
C977
CJ1
CJ321
CJ322
CN901
D1
D2
D21
D22
D31
D101
D242
D243
D244
D245
D301
D331
D341
D561
D901
D903
D976
D977
IC302
IC901
L1
L521
L522
L523
L524
L701
L702
L901
LM0
LM1
Q1
Q2
Q21
Q22
Q23
Q31
Q32
Q41
Q42
Q241
Q301
Q501
Q521
Q522
Q561
Q841
Q891
Q963
Q964
Q976
Q977
R1
R2
R3
R5
R8
R9
R10
R21
R22 R23
R24
R25
R26
R27
R32
R33
R34
R42
R43
R81
R82
R83
R84
R162
R163
R172
R173
R175
R176
R181
R182
R191
R192
R201
R211
R241
R242
R243
R244
R245
R246
R247
R248
R249
R321
R322
R332
R342
R351
R352
R501 R502
R503
R504
R505
R506
R507
R508 R509
R510
R511
R512
R513
R514
R515
R516
R517
R521
R522
R523
R524
R525
R526
R527
R528
R529
R530
R531
R532
R534
R535
R536
R537
R538
R539
R561
R562
R563 R564
R565
R566
R572
R573
R575
R582
R583
R585
R591
R592
R593
R594
R701
R702
R703
R706
R707
R708
R709
R710
R711
R712
R713
R714
R715
R716
R717
R719
R721
R723
R724
R725
R726
R728
R729
R731
R732
R733
R734
R735
R739
R744
R745
R746
R747
R748
R749
R750
R801
R803
R804
R805
R806
R807
R808
R809
R810
R811
R812
R813
R814
R815
R841
R842
R891
R892
R893
R901
R905
R906
R967
R968
R976
RESET
TP1
TP2
TU1
VDD
VPP
VSS
X1
X521
X701
C85
D706
C711
B301
D707
D705
D701
D702
D708
D703
D709
D704
C24
D971
D972
Q971
R971
R972
R4
C555
C601
C602
C603
C611
C681
C682
CJ601
D644
IC602
R606
R607
R611
R612
R613
R614
R615
R631
R636
R637
R640
R641
R642
R643
R646
R647
R651
R652
R653
R654
R656
R657
R658
R661
R662
R681
D645
R659
R649
R648
C612
D642
D643
D641
R660
D646
15
11
T1C
Main board(Reverse side)
Front board(Reverse side)