Block diagram
FLOUT
FROUT
IC941
RLOUT
RROUT
KS-FX8R
REARL
REARR
J9301
LINE OUTPUT
TU_L,TU_R
TU1
TUNER PACK
MUX
POWER AMP.
FL,FR
RL,RR
IC911
E.VOLUME
RDS
IC761
DETECTOR
SM
SK/ST
RDSCK
CH_L
CH_R
SD/ST
MONO
RDSDA
FMOSC
SEEK/STOP
SCL
AFCK
FMEO
J751
SDA
AMEO
IC701
FM/AM
CPU
JBUSSI
JBUSSO
SCK
JBUSIO
SI/SO
JBUSSCK
IC751
JVC BUS
TAPE-L,TAPE-R
F/R
TAPEIN
CN901CN902
CP902
CJ902
MOTOR
MUTE SW
T-MUTE
MOTOR
IC901
HEAD AMP
L-CH
R-CH
PB
HEAD
CN901
CJ901
S8~S52
LCD
LCDCE
LCDCL
LCDDA
COM1~COM3
LCD
IC651
DRIVER
ENC1,ENC2,KEY0,KEY1,KEY2
LCDCE,LCDDA,LCDCK,REMOCON
CJ601
CN601
KEY0
~KEY2
KEY SWITCH
2-1
KS-FX8R
< MEMO >
2-2
Standard schematic diagrams
g
Main amp section
Main amp section
KS-FX8R
6
5
4
3
2
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
TUNER SIGNAL
1
BC
DE
F
G
TAPE SIGNAL
CD-CH SIGNAL
FRONT SIGNAL
REAR SIGNAL
HA
I
2-3
LCD & Key control section
6
5
KS-FX8R KS-FX8R
4
3
2
1
BC
DE
2-4
F
G
HA
I
Mecha control & Head amp section
6
5
KS-FX8R
4
3
2
1
BC
DE
F
G
HA
TAPE SIGNAL
I
2-5
Printed circuit boards
KS-FX8R KS-FX8R
Printed circuit boards
Main board
T03
R11
C51
R54
C52
C53
R56
Q51
FSMW1091A
B906
B907
B908
R57
Q52
J321
C321
RL
R341
J1
L1
D5
B901
C33
D6
C3
10
C2
C8
C81
B910
Q53
C710
Q341
R342
R352
R322
R343
R353
TU1
C32
1
R32
R34
Q32
D3
Q3
R12
C82
C9
15
C43
C6
B911
R81
C84
20
C5
B803
R53
R84
R721
R55
C54
Q9
C4
B952
R58
B954
R60
C71
R59
C7
R722
S702
C55
R8
B814
FL
R351
R321
C322
Q321
Q351
R331R332
Q331
R323
D322
C31
R33
R31
B801
C41
R41
Q31
R5
B902
D2
R9
R83
R82
Q4
C74
C75
R333
D1
R43
C1
R1
R42
C42
Q42
Q41
R2
R44
B905
R4
B928
B904
Q7
R711
C244
C83
C714
C162
B919
Q6
B920
B916
R10
B915
Q10
Q5
R716
D4
B805
B912
Q8
C73
R810
C77
C72
R73
IC71
X71
C76
6
5
4
3
2
1
3
J801
7
8
4
5
6
2
C906
1
CP401
B802
D321
R6
Q1
R3
Q2
B903
C703
R741
B923
B922
C701
R713
B921
B917
R714
B914
B913
B941
B942
R732
R71
B808
1
R804
R803
B809
16
R717
R805
R801
R808
L-CH
TP01
R748
B813
R742
R735
R745
R743
R734
R746
C702
B926
B925
B940
B810
Q701
R-CH
TP02
C167
C713
C161
C712
R740
B924
B932
R712
C705
1
C706
R729
B811
B943
R72
PL701
R809
R802
1
14
IC801
IC901
C905
C904
R904
R905
R162
B927
R907
C907
R164
R163
R161
C163
C164
B929
R172
R707
R173
R708
IC701
C708
R730
C707
X701
C704
R715
R807
C801
R806
C166
C165
C168
B931
IC161
C242
R247
D241
R246
B938
B939
B816
B955
L901
R902
1
R903
D901
R901
C982
Q902
C901
C908
R245
B807
R728
R169
C241
R165
C169
Q241
R727
D705
D704
R702 R703
Q891
C902
C173
C172
C174
C176
C183
B806
C181
B930
1
R166
B933
R747
R738
R726
D706
R718
R906
Q901
R167
R168
B815
R170
D242
D161
R241
C243
R739
D710
R744
R701
C881
D982
C891
9
B817
D891
R302
R303
C303
C882
Q881
C319
B818
R892
R312
R891
C178
C182
C184
R244
R733
R737
R719
D707
R306
R171
B934
C179
C170
C171
C175
C180
R242
R243
R736
R881
B935
B944
B937
B936
R720
D708
R725
R724
R882
CP901
1
5
13
C309
B951
B949
Q903
C177
B946
Q781
R782
D709
R706
3
2
7
C981
C910
14
15
10
11
C314
C313
R314
C318
B819
R308
R309
B820
R909
B812
R908
Q904
Q976
R977
C781
R976
B945
D781
D783
C782
Q782
D782
R781
R704
R723
D702
D701
R705
C841
D703
1
CJ601
18
17
4
8
D981
C911
12
R313
R307
R311
R304
C304
C308
R301
B950
Q977
Q784
C903
Q841
19
16
D902
B948
R731
C709
C909
R841
BZ841
C315
IC301
C302
C305
2
1
C306
R305
C301
C307
R978
B947
L903
L902
C711
R842
S701
Front board (Foerward side)
D601
S614
D612
D611
EN601
S607
D602
D614
D604
D603
D624
IC602
D613
S615
D618
S616
D617
D615
S617
D616
S618
LCD1
D606
D605
S608
S619
Front board (Reverse side)
C602
R669
Q641
R645
R628
R611
R630
R644
D641
R646
R627
R603
T01
D642
R643
R642
D643
D656
D654
FSMW1081-001QX
Q642
C604
R671
R641
D652
D655
D653
C605
C603
R670
80
R656
R655
1
C601
Reel board
D621
S605
D641
D642D643
R607
D607
60
61
20
R608
S609 S610
41
40
IC601
21
D608
R609
R610
D609
S611
R606
R612
Main
D625
R623
D.Gnd
R658
C606
R657
Anode
R601
S602
R614
R616
CN601
1
D610
S601
S612
D651
R653
R654
R661
R662
R663
Sub
St.BY
D620
S01
R604
D619
S604
D626
D657
R613
R629
D627
R602
R615
R651
R622
D658
S613
D623
R605
D622
S606
S603
R620
R650
R652
R624
R625
R626
R621
Mecha control board
CA-IN
C418
B410
B413
B411
1
R412
11
R414
R418
R413
C417
21
C412
31
IC401
1
B402
C411
R423
B404
CJ403
2
B405
B412
VR401
C410
CJ401
R408
B401
C409
C405
R407
C406
C408
C402
R406
C407
R403
R405
C403
R402
1
1
CA-IN
3
C404
R404
R422
C401
2
Q402
Main:Main:+
Sub: Sub:+
ST-BY
CrO2
DE
F
G
R410
Q401
C424
B406
D402
R401
R416
C419
C422
C414
B408
C421
B403
C416
R420
Q403
R415
R417
C413
C423
D401
R426
VR402
B409
R425
R411
1
B407
T02
R424
IC402
C425
2
FSMW1093A
1
BC
Main+
MODE
Sub+
MODE
HA
Pho- T r
M
CrO2
J
I
2-6
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