Page 1
KS-FX490
SCHEMATIC DIAGRAMS
CASSETTE RECEIVER
KS-FX490
CD-ROM No.SML200305
Area Suffix
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
J -------------- Northern America
S
2-1
2-2
2-5 to 7
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
No.49845SCH
2003/05
Page 2
KS-FX490
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.
2-4
Page 3
Block diagram
KS-FX490
LINE OUT
5
TU.L
TU.R
J1
ANT
TU1
FM/AM
TUNER
IC161
TAPE.L
PHOTO
PHOTO
REEL
4
MAIN
MOTOR
SUB
MOTOR
3
SWITCH
REEL
MOTOR
SUBMO+
SUBMO -
TAPE IN
STAND BY
MODE
SUBMO+
SUBMO -
MOTOR
REEL
MODE
TAPEIN
STANDBY
CN403CN402
IC401
HEAD
IC402
MOTOR
DRIVER
SUBMO+
SUBMO -
Lch
Rch
FF/REW
MSOUT
DOLBY
F/R
CN401
AMP
FWD-L,FWD-R
P. B .
REW-L,REW-R
TAPE.R
CP401
FF/REW
MS,F/R
DOLBY
MOTOR
SUBMO+
SUBMOTAPEIN
STDBY
MODE
REEL
HEAD
MONO
SD/ST,SEEK
S.METER
IFC
IFC.CONT
FMOSC
EQ
FM/AM
IC701
MICON
JBUS.SI
JBUS.SO
JBUS.IO
JBUS.INT
JBUS.SCK
IC801
E.VOLUME
E.DATA
E.CLK
CH.L
CH.R
JVC BUS
CJ321
FRONT LEFT
FRONT RIGHT
REAR LEFT
REAR RIGHT
REGULATOR
OUTFL
OUTFR
OUTRL
OUTRR
IC901
IC301
POWER AMP
LF+
LFRF+
RFLR+
LRRR+
RR-
2
LCDDA
LCDCL
LCDCE
LCD1
COM1 to COM3
S1 to S68
IC601
LCD
DRIVER
CN601
KEY0 to KEY2 REMOCON
KEY MTRIX
S601 to S617
IC602
REMOCON
RECEIVER
ENC1,ENC2
EN601
ROTARY
ENCODER
CN701
REMOCON
JOG0,JOG1
LCDDA
LCDCL
LCDCE
KEY0 to KEY2
SI/SO
SCK
J801
CD-CH
EACH BLOCK
CN901
SKP
BATT
1
AB CD E F G
2-1
Page 4
Standard schematic diagrams
Main amp section
TU1
5
J1
QNB0100-002
4
QAU0281-001
L1
4.7uH
1SS355-X
D1
R31
1k 10k
R32
1k
0.1/50
0.1/50
C32
C31
1SS355-X
D2
R33
1k
C34
0.001
Q32
2SC2412K/R/-X
R24
0
0.022
10
10/16
C2
R1
Q1
2SB709A/R/-X
R34
C33
2.2/50
Q31
R35
1.5k
EO
220/10
C35
UDZS9.1B-X
D31
R2
R36
470
D4
D3
1SS355-X
D32
R4
2.2k
1SS355-X
C4
10k
1SS355-X
Q2
2SB624/4/-X
R5
100
0
R23
R6
R22
0
R3
10k
1k
Q3
UN2211-X
FM/AM
FMOSC
KS-FX490
C92
R91
2.7k
C82
R81
2.7k
R8R9
8.2k
10k
0.01
10/16
C1
10K
120p
C8
R7
R13
Q5
UN2211-X
0
R21
SEEK
IFC
C6
R26
0
IFC.CONT
Q4
0.001
220/10
UN2211-X
22k
S.METER
C10
C13
6.8
R25
SD/ST
MONO
4.3k
4.3k
0.033
0.033
0.1/50
C9
C81
C91
R82
R92
E.CLK
1/50
E.DATA
1/50
TU.R
TU.L
A.GND
IC161
TEA6320T-X
CH.L
TAPE.L
A.GND
TU.L
TU.R
TAPE.R
CH.R
C163
1/50
C162
1/50
C172
C173
C195
1/50
1/50
47/16
C196
R162
0.18
C165
C175
C176 C166
0.18
0.22 0.22
C174 C164
0.0082 0.0082
22k 22k
R171 R161
R172
2.2k 2.2k
100/10
C167
C168
0.033
C178
C177
0.033
KS-FX490
C182
C181
2.2/50
2.2/50
C191
C192
2.2/50
0.0056 0.0056
2.2/50
10
0.01
47k
C197
C198
R175
R177
100/10
CJ321
QNN0489-001
R333
1k
R323
1k
R353
47k
47k
R165
R166
47k
R176
1k
R343
1k
R334
100
R324
100
R354
100
R344
100
R331
27k
R351
27k
R341
27k
R321
27k
Q351 Q341Q331 Q321
2SD1781K/QR/-X
R345
D341
2.2k
1SS355-X
D351
R355
2.2k
R325
2.2k
R335
2.2k
1SS355-X
1SS355-X
1SS355-X
Q782
D321
D331
UN2111-X
1SS355-X
C782
C362
0.022
C361
0.022
C313
C332
0.22
0.47/50
C352
0.22
C342
0.22
C322
0.22
470p
470p
470p
470p
C321
C341
C351
D310
Q781
UN2111-X
UN2211-X
UDZS11B-X
D781
1SS355-X
C781
220/10
47/16
D782
4.7/25
C331
C303
R305
C319
10K
0.1
R302
220k
R303
10k
Q301
IC301
LA47505
C314
0.47/50
47/16
470pF
0.022
C301
C304
C305
C318
0.1
1/50
22/16
C315
C302
C317
C316
0.1
0.1
PCNT5V
9V
C713
PCNT14V
CP401
QGB1214J1-18S
To
Head amp
section
CN401
3
CN701
QNZ0007-002
To
LCD & Key
control
section
CN601
UDZS6.2B-X
UDZS6.2B-X
UDZS6.2B-X
QNZ0095-001
UDZS6.2B-X
D705
D706
D707
D708
J801
2
UDZS6.2B-X
UDZS6.2B-X
D709
D710
UDZS6.2B-X
UDZS6.2B-X
D711
D712
CH.R
A.GND
CH.L
UDZS6.2B-X
D713
R801
R802
R803
STDBY
TAPEIN
SUBMO+
SUBMO-
TAPE.L
A.GND
TAPE.R
DOLBY
FF/REW
MOTOR
REMOCON
JOG1
JOG0
LCDCE
LCDDA
LCDCL
KEY2
KEY1
KEY0
R804
MODE
REEL
MS
F/R
100k
100k
100
330k
HD74HC126FP-X
PCNT14V
UDZS6.2B-X
D715
C801
R809
IC801
10V
9V
JBUS.INT
ACC5V
ILL10V
Vdd5V
PCNT14V
510
R753
0.1
0.1
D753
SLR-56MC3F
C707
C706
MEMORY
PCNT14V
JBUS.SO
0.047
JBUS.IO
10K
Vdd5V
JBUS.INT
100k
R810
JBUS.SCK
100
22k
R807
R808
330k
100k
R805
R806
AMVCC
FMVCC
R731
47K
R729
47K
JOG1
JOG0
Vdd
1
9V
MONO
FM/AM
LCDDA
4.7k
R733
FF/REW
MOTOR
SD/ST
S702
QSW0451-001
0
R752
10k
10k
R723
R719
KEY0
IFC.CONT
LCDCL
LCDCE
QSW0451-001
RX
TX
3.3k
R708
3.3k
R709
REEL9VMODE
PCNT5V
4.7k
4.7k
R732
R734
10k
47k
47k
R756
R755
R754
IC701
SUBMO+
SUBMO-
MS
DOLBY
F/R
S703
R746
R725
R726
R727
R730
47K
R728
47K
R735
10k
R736
10k
GND
R758
R702
R703
R710
R711
R712
R713
R714
REMOCON
47k
47k
4.7k
47k
UPD178078GF-618
100K
47k
47k
47k
56k
4.7k
4.7k
4.7k
47K
R757
STDBY
TAPEIN
4.7k
R704
JBUS.IO
4.7k
R705
JBUS.SI
4.7k
R706
JBUS.SO
4.7k
R707
Q701
2SC2412K/R/-X
JBUS.SCK
0.22
R751
0
D701
UDZS6.2B-X
RESET
Vpp
R743
10k
R721
10k
R720
KEY1
KEY2
QSQ1A11-V06Z
R744
100
47k
R739
10k
R741
R742
X701
QAX0406-001Z
R724
C704
0 27p
C701
0.1
C710
100/10
0.22
C708
R717
R718
S701
C712
0.1
EO
47k
FMOSC
IFC
47k
SEEK
C703
22p
X1
S.METER
47k
68K
9V
Q905
2SA1855/RST/-T
R243
R245R247
180k
12k1k
150k
150k
C241
R241
0.1
C714
PCNT14V
Vdd5V
ILL10V
10V
9V
Vdd5V
PCNT5V
ACC5V
PCNT5V
AMVCC
FMVCC
MEMORY
R242
1/50
47k
R249
KIA7810PI
R911
100
2SD601A/R/-X
D242
RB160M-30-X
D241
22/16
C911
UN2211-X
1SS355-X
0.1
2SA1037AK/RS/-X
47k
R906
Q904
0.22/50
C244
0.22
C245
UN2211-X
R250
220
68k
D243
UDZS5.1B-X
R248
C910
0.33
Q901
1k
R905
Q902
C243
Q241
0.047
47
R246
R244
18k
C242
IC902
L902
47uH
Q903
UN2111-X
1k
R907
47k
R908
1K
R909
Q906
UN2211-X
470p
C908
UN2211-X
D908
1SS355-X
D909
1SS355-X
47k
R904
220/10
220/10
C903
C912
2SA1037AK/RS/-X
TUNER SIGNAL
TAPE SIGNAL
CD CHANGER SIGNAL
PCNT5V
C901
3300/16
D901
1N5401-F64
QQR0703-001
L901
CN901
QNZ0611-001
R901
Q976
R976
Q977
2SA1037AK/RS/-X
12K
R977
27k
IC901
AN80T05
0
R912
RB160M-30-X
220/10
10/16
10/16
10/16
C907
C906
C904
C905
Q907
C916
10/16
47
C902
10/16
6.8k
R902
R903
F1
11k
C909
D904
RB160M-30-X
D903
R913
R914
QMFZ047-150-T
0.1
2.2k
2.2k
QAM0013-006
Parts are safety assurance parts.
C917
10/16
When replacing those parts make
sure to use the specified one.
FRONT SIGNAL
REAR SIGNAL
2-2
HAB C DE FG
Page 5
LCD & Key control section
KS-FX490
5
S28
S27
S26
S31
S30
S29
S37
S36
S35
S34
S33
S32
S43
S42
S41
S40
S39
S38
S49
S48
S47
S46
S45
S44
S55
S54
S53
S52
S51
S50
S61
S60
S59
S58
S57
S56
S67
S66
S65
S64
S63
S62
S68
COM3
COM2
COM1
LCD1
4
IC602
RPM6938-SV4
R660
C606
4.7/6.3
UDZS5.6B-X
R661
10k
47
LCD1
S1
560
R628
D609
D610
D611
S5S6S7
560
R629
S2
QLD0257-001
S3
S4
910
R634
D617
1.8k
R635
1.8k
R636
D618
1.2k
R637
1.2k
R638
560
R630
D612
D613
D614
1.2k
R631
1.2k
R632
910
R633
D615
D616
D619
D620
1.2k
R639
1.2k
R640
D604
D605
R680
S68
0
QSW0976-001
R641
430
NSPW310BS/BRS/
EN601
R642
D641
C608 C609
0.01 0.01
430
R643
430
D642
D643
NSPW310BS/BRS/
NSPW310BS/BRS/
R650
S61
ENC2
0
ENC1
R652
47k
R651
47k
KEY1
KEY2
KEY0
10V
ACC5V
1SS355-X
R644
0
LCDCE
LCDCL
LCDDA
1SS355-X
D653
1SS355-X
D656
D654
1SS355-X
D657
R653
1k
1SS355-X
D655
1SS355-X
D658
D651
R655
R654
220
UDZS5.1B-X
390k
C601
4.7/6.3
C602
330k
R656
C603
1SS355-X
D652
0.01
220P
C604
S62
S63
S64
S65
S66
S67
COM1
COM2
COM3
R659R658R657
10k10k10k
C605
0.22
0.22
S1
S3
S2
S4S5S6S7S8S9S10
IC601
LC75873NW
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
D659
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S42
S43
S44
S45
S46
S47
S48
S49
S50
S51
S52
S53
S54
S55
S56
S57
S58
S59
S60
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S8
S12S9S11
S10
R606R607
8201.2k3.9k 2.7k 1.8k 820
S608
R612R613R614
8201.2k1.8k
S615S616S617
S607
S614
R601R602R603R604
8208201.2k1.8k
S601
S602S603S604S605
R611
D601
1.2k
1.2k
R621
R622
R620
820
SML-310LT/MN/-X
S606
820
S613
D602
D603
1.8k
R623
1.8k
R624
D606
1.2k
R625
1.2k
R626
560
R627
D607
D608
3
R610
R609 R608 R605
S612
S609S610S611
QNZ0006-001
ACC5V
REMOCON
10V
ENC2
LCDCE
LCDDA
LCDCL
KEY2
KEY1
KEY0
D660
CN601
R662
R663
R664
R681
3.3k
3.3k
To
3.3k
Main amp
section
CN701
0
2
1
AB CD E F G
2-3
Page 6
Head amp section
KS-FX490
KS-FX490
5
680
R401
CN403
QGF1219F1-10S
24k
R406 R407
0.015
C411
0.015
C410
R408
24k
R409
12k
R410
R411
12k
33k
VR402
33k
VR401
22/16
C414
18k
0.1
0.10.1
C413C412
R413
C417
IC401
CXA2560Q
R417
10k
R414
3.9k
0.1
220p
C416
C418
0.47/50
C419
100
R412
4
C408
100p
C407
100p
100k
R405
C409
22/16
100p
100p
C406
C405
180 180
CN402
QGA2001C1-06
3
100k
100k
100p
C401
100k
R402
100p
C402
R403
100p
C403
R404
100p
C404
2
Q403
2SB1322/RS/-T
1A3G-T1
D402
R418
15k
22k
R415
C421
0.018
3.3k
R422
47k
Q402
UN2211-X
R416
1.5M
0.1
C422
R423
C415
0.01
IC402
D401
MA3047/H/-X
3.3k
R424
LB1641
10/16
C423
C425
0.01
0.1
C424
33
R425
CN401
QGB1214K1-18S
To
Main amp section CP401
TAPE SIGNAL
1
2-4
HAB C DE FG
Page 7
Printed circuit boards
Main board
5
C901
B51
4
C302
IC301
3
C315
B451
B153
C301
B52
C305
C782
C303
CN901
B401
C314
C313
C881
C781
C244
C322
C342
C242
C352
C332
R901
B55
D901
B155
B156
B157
B158
B159
C241
C197
C902
B204
C903
C192
C912
Forward side
L901
C907
C905
B203
B154
C906
C181
C182
C191
C914
KS-FX490
IC901
B56
CP401
B151
C916
B202
B201
C196
B102
C917
C904
C162
C163
C173
C172
C195
B54
J801
B101
C35
C33
CJ321
B402
C82
C92
C31
C32
C2
J1
L1
TU1
C1
B53
Q905
2
S702
IC902
L902
CN701
B103
D753
X701
C710
C13
C9
S703
S701
1
AB C
2-5
Page 8
KS-FX490
Main board
5
J1
CJ321
R344
R354
B800
C361
Q341
Q351
R343
R345
R353
R355
L1
D341
C10
S703
Q32
C32
D351
Q31
Q3
R31
C34
C363
R34
C31
C2
C4
R6
C1
R4
R5
R81
C81
R91
C91
R9
C6
R8
R13
Q4
Q5
C9
R32
R1
D4
C712
R744
D701
R24
R82
R7
R33
D321
D331
C35
C33
B802
D3
Q2
C82
R92
C92
C8
C714
C13
R743
4
TU1
D1
D2
3
2
S701
R324
B801
Q321 Q331
D31
D32
R36
R35
R23
Q1
R2
R25
R26
R22
R706
R3
R707
R717
R723
RESET
R807
C710
R803
R804
R801
R21
R323
R334
C362
IC801
R325
R718
J801
R335
R704
C704
R333
C708
C701
B804
R808
B805
R705
R802
R708
R709
R724
X701
CP401
R805
C703
R810
R702
R703
Q701
X1
R806
C801
R809
R711
C173
C172
D753
C917
C916
C162
C163
IC161
C195
R710
GND
R753
Reverse side
C914
C196
C176
C174
VPP
R162
R161
C164
R739
R741
R742
IC901
B803
C904
R725
C906
C165
C166
IC701
C713
Q902
R752
C167
C175
R171
R755
C168
R172
R754
R746
R912
R751
L901
C907
C177
R756
D901
D908
R905
R719
TX
Q901
C181
C905
D909
C715
R727
Q904
R904
R731
R729
C182
R726
Q907
C178
D713
D903
R175
RX
C912
R166
R242
R241
C191
R730
R712
D712
D904
R903
R902
R165
C192
R728
L902
R906
D711
R176
Q903
C198
R907
R720
D710
C909
R177
D709
R914
R913
C903
C241
R901
C902
C197
VDD
R714
R721
R713
D708
C913
D907
R351
R243
Q241
R244
R249
R733 R734
D707
R245
R732
C243
D706
R321
R341
R735
R910
C352
R331
C242
D243
R736
C332
R246
C707
D906
R758
R911
R882
R302
C908
D241
R757
C706
C322
R247
C342
D242
C244
D715
Q906
Q977
D705
R881
C881
R977
CN701
C321
Q881
C245
R248
R250
C341
C891
C331
D891
CN901
C351
D892
IC902
C313
C781
R909
R976
Q891
R908
Q976
C315
C314
C911
D782
Q905
R303
C910
C305
R891
C301
C782
Q781
C303
R305
C901
C302
Q782
R892
D781
D310
S702
C304
C316
C317
C318
C319
IC301
Q301
2-6
1
AB CD
Page 9
Front board
KS-FX490
Forward side
S607
LCD1
EN601
D607
D609
S608
R606
D610
R607
D611
S609
R608
S610
D612
R609
S611
D613
R610
S601
D614
R601
S612
D615
D641
R635
R636
R604
D642
R602
D643
J601
D616 D617
S603
S602
R637
R638
R603
D618
D620
S605
D619
S604
S614
D601
S617
D603
R614
S613
D602
R611
D604
S606
D605
R612
S615
D606
5
S616
D608
R605
IC602
R613
4
Reverse side
R621
Q641
EN601
R627
R650
R628
C609
R629
C606
R622
R630
R620
R623
R624
R639
R640
D651
R653
R681
D660
D653
D656
D654
D655
R651
R652
R654
R664
R663
R662
R631
R632
J601
R634
R668
D657
R669
R655
D641
D642
D643
R633
D658
D652
3
R643
R642
R667
R666
C603
C602
R641
R656
R680
C601
R658
C607
C604
C605
R659
R670
R657
IC601
CN601
R645
R644
R661
IC602
R660
R646
D659
Q642
R625
C608
R626
2
Mecha board
R411
VR402
B409
R426
C423
R425
D401
R424
IC402
C413
B407
C425
R410
Q401
C424
B406
D402
R401
R416
C419
C422
C414
B408
C421
B403
C416
R420
Q403
B413
R417
R415
B410
C415
C418
B411
R414
R418
R413
C417
R412
B404
CJ403
C412
B412
IC401
B405
R409
C411
B402
R423
VR401
C410
CJ401
R408
B401
C409
C405
R407
C406
C408
C402
R406
C407
R403
R405
C403
R402
C404
R404
C401
R422
Q402
1
AB C
2-7
Page 10
KS-FX490
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49845SCH)
Printed in Japan
2003/05
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