Page 1
SCHEMATIC DIAGRAMS
CASSETTE RECEIVER
KS-FX555
CD-ROM No.SML200408
Area suffix
UN ----------------------------- Asean
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2004 Victor Company of Japan, Limited.
2-1
2-2
2-5 to 6
No.MA104SCH
2004/8
Page 2
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.
Page 3
Block diagram
ANT
LINE
REAR OUT
TO
SPEAKER
CONNECTOR
Main amplifier section
J1
LRO
RRO
CP981CJ321
L1
LRO+,LRO-
RRO+,RRO-
LFO+,LFO-
RFO+,RFO-
AM
FM
FM/AM TUNER PACK
IC301
POWER AMP
TU1
OUTLF
OUTRF
OUTLR
OUTRR
LFO
RFO
MONO
SD/ST
S.METER
FM/AM.OSC
IFC
IF.REQ
TUL, TUR
IC161
E.VOL
TAPE.L TAPE.R
CP701
Mecha control board
CN401
IC402
MOTOR
DRIVER
IC401
HEAD AMP
MOTOR
TAPE IN
STAND BY
MODE
REEL
SUBMO+
SUBMO-
FWD L/R
REW L/R
COMMON L/R
CN402CN403
MAIN
MOTOR
SUB
MOTOR
SWITCH
FWD L/R
REV L/R
TO
CD CHANGER
CP801
REGULATOR
SCK
SI/SO
IC901
IC801
J-BUS
JBUS.SCK
JBUS.INT
JBUS.SO
JBUS.SI
JBUS.I/O
IC701
MICON
CH.R
CH.L
LCD.SO
LCD.SCK
LCD.CE
KEY0 to KEY2
DETACH
REMOCON
STDBY
TAPEIN
MODE
SUBMO+
SUBMO-
REEL
MOTOR
F/R
MS
FF/REW
DOLBY
CJ701
LCD & Key control section
DATA
CLOCK
CE
CP701
KEY0 to KEY2
LCD
S3 to S52
COM1 to COM3
IC651
LCD DRIVER
S601 - S621
KEY
D601 to D620
LIGHTING
DISPLAY
2-1
Page 4
Standard schematic diagrams
Main amplifier section
TU1
QAU0281-001
QNB0100-002
QGB1214J1-18S
To CN401
(SHEET 2)
VMC0334-001
To CP701
(SHEET 3)
QNZ0095-001
J1
CP701
CJ701
D705
D706
D707
D708
MTZJ6.2B-T2
MTZJ6.2B-T2
MTZJ6.2B-T2
MTZJ6.2B-T2
CP801
R812
2.4k
R811
6.8k
D715
D709
MTZJ6.2B-T2
MTZJ6.2B-T2
R813
2.4K
4.7u
R31
1k 10k
R32
1k
0.1/50
0.1/50
C32
C31
D710
D711
C710
0.1uF
MTZJ6.2B-T2
MTZJ6.2B-T2
6.8k
R814
CH.R
CH.L
L1
R33
0.001
Q32
KTC3199/GL/-TKTC3199/GL/-T
STDBY
TAPEIN
MODE
SUBMO+
SUBMO-
TAPE.L
TAPE.R
REEL
DOLBY
FF/REW
MOTOR
LCDSO
LCDSCK
LCDCE
ACC5V
KEY2
KEY1
KEY0
DETACH
R801
R802
R803
R804
1SS133-T2
1SS133-T2
D1
D2
R34
C33
1k
2.2/50
C34
Q31
MTZJ9.1C-T2
220/10
C35
D31
R35
1.5K
R36D32
EQ
MS
F/R
0.047
C801
10k
R809
100k
100k
100
330k
IC801
HD74HC126P
10
R1
470
1SS133-T2
0.1
C707
0.022
10
10/16
10/16
R4
10V
100
R807
R810
22k
R808R805
330k
JBUS.SI
JBUS.SO
JBUS.IO
JBUS.INT
100k
JBUS.SCK
0.018/25
0.018/25
0.01
C12
82
R6
100k
R806
C1C2C4
FM/AM.OSC
0.01
C6
C81
RB721Q-40-T2
ILL10V
REMOCON
IFREQ
MONO
J.BUS
120p
10k
C8
C91
R7
D10
IFC
MEMORY
FF/REW
CJ321
QNN0519-001
IC301
3.3k
R91
3.3k
R81
R11
47k
R8R9
8.2k
Q4
KRC102M-T
22k
IFREQ
S.METER
SD/ST
VDD5V
R701
R704
R705
R702
R703
R712
R713
R714
0.001
C10
MONO
1SS133-T2
1SS133-T2
1SS133-T2
6.8k
0.1/50
C9
R82
D701
D702
D703
R727
47K
R728
2.2k
R729
2.2k
47k
4.7k
4.7k
47k
4.7k
47k
56k
47k
KTC3199/GL/-T
1/50
C92
1/50
C82
6.8k
R92
TU.R
TU.L
IC701
LC72366-9B41
Q701
REEL
MOTOR
SUBMO+
SUBMO-
TAPEIN
STDBY
EVOLCLK
EVOLDA
0.1
C196
R706
R707
R709
R708
R711
R710
R750
C199
C701
27p
1SS133-T2
R162
1/50
0.22
0.15
C166
C165
0.033
C176
C175
0.22
0.15
C174 C164
0.0082 0.0082
22k 22k
R171 R161
R172
2.2k 2.2k
100/10
C711
0.01
C705
0.22
C704
100/6.3
47k
R716
4.7k
47k
47k
4.7k
47k
47k
68k
FM/AM.OSC
C703
10/16
FMVCC
1/50
C167
0.0056
C181
C182
C168
C177
C178
C191
C192
ACC5V
1/50
0.0056
47k
R195
R352
EQ
9V
IFC
AMVCC
0.033
R164
1.2k1.2k
R163
3.9k
TU.L
TU.R
R173
3.9k 1SS133-T2
TAPE.R
CH.R
R174
LCDCE
LCDSO
LCDSCK
JBUS.IO
JBUS.SO
JBUS.SI
JBUS.SCK
3.3k
3.3k
2.2k
2.2k
2.2k
4.7k
4.7k
4.7k
R722
R731
REMOCON
4.7k
R721
R720
R719
R718
R717
10k
2.2k
R738
R735
DOLBY
KEY2
S.METER
FM/AM
R723
R724
R725
4.7k
2.2k
4.7k
R743
R730
MS
MODE
F/R
DETACH
SD/ST
JBUS.INT
C162
C172
1/50
C195
1/50
22p
C702
QAX0406-001Z
1/50
C163
1/50
C173
47/16
IC161
TEA6320T-X
X701
D704
10k
10k
R736
R737
KEY1
KEY0
47k
R322
1/50
0.01
C197
C198
10
R332
100/10
150k
150k
R241
R242
1/50
KTC3199/GL/-T
L903
47u
R343 R344
47k
R342
Q351
Q321
2SD2144S/VW/-T
2.2k
R325
2.2k
R355
47k
R245
12k
R243
C241
R244
RB721Q-40-T2
180k
C243 D242
Q241
0.047
100
D241
R246
22k
1k
R247
C242
22/16
C917
0.33
Q904
KRC102M-T
C244
RB721Q-40-T2
KIA7810PI
C911
0.1
0.47/50
IC902
Q903
KRA102M-T
56k
R248
D321
KRC102M-T
IC901
AN80T05
L902
Q901
KTA1267/YG/-T
Q902
KRC102M-T
R321
R341
R331
R351 C352
Q905
2SA1855/RST/-T
R909
1k
Q906
47u
27k
27k
27k
27k 0.22/50
D310
1SS133-T2
Q782
KRA102M-T
Q907
KTA1267/YG/-T
100
1k
R354
R353
1k 100
LA4743K
0.22/50
C322
C342
0.22/50
0.22/50
C332
470p
C351
Q781
47/16
C782
D782
MTZJ11B-T2
R908
47k
Q977
KTC3199/GL/-T
R979
47k
1SS133-T2
D902
C912
2200/6.3
470p
C331
KRA102M-T
R978
27k
C907
470p
470p
C321
C341
D781
C781
1SS133-T2
220/10
VDD5V
Q976
KTA1267/YG/-T
10/16
10/16
100/10
C13
C905
C906
10/16
R301
4.7k
KRC102M-T
R977
220/10
C904
4.7/25
10/16
0.022
C303
C304
C301
C306 C307
0.1 0.1
2.7k
R303
Q301
C901
2200/16
D901
1N5401-F64
L901
QQR0703-001
100
R901
R976
43k
68k
1A3G-T1
220/10
10/10
C903
C910
C902
10/16
QMFZ047-150-T
6.8k
R902
R903
11k
C909
0.01
D904
1A3G-T1
D903
1K
R910
4.7/50
22/16
C305
C302
C308
C309
0.1
0.1
CP981
QNZ0611-001
QAM0594-001
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
SHEET 1
Page 5
Mecha control section
CN403
QGF1219F1-10S
680
R401
100P
C408
0.015
C411
24K
R410
R411
12K
33K
VR402
Q403
2SB1322/RS/-T
47K
R423
R422
3.3K
1A3G-T1
Q402
D402
18K
0.1
0.10.1
C413C412
R413
C417
UN2211-X
CN402
QGA2001C1-06
100P
C401
100K
R402
100P
C402
100K
R403
100P
C403
100K
R404
100P
C404
100K
R405
C409
100P
22/16
100P
100P
C407
C406
C405
180 180
R406 R407
0.015
C410
R408
R409
12K
24K
33K
VR401
22/16
C414
IC401
CXA2559Q
100
R412
0.1
220P
C418
C416
QGB1214K1-18S
CN401
R414
3.9K
0.47/50
C419
R417
10K
R418
15k
R415
C421
22K
0.018
R416
1.5M
0.1
C422
C415
0.01
IC402
LB1641
D401
MA3047/H/-X
3.3K
R424
10/16
C423
C425
0.01
0.1
C424
33
R425
To CP701
(SHEET 1)
SHEET 2
2-3
Page 6
LCD & Key control section
GND
To CJ701
(SHEET 1)
ILL10V
REMOCON
LCDSO
LCDSCK
LCDCE
ACC5V
KEY2
KEY1
KEY0
VMC0335-001
CP701
LCD
QLD0251-001
820
R649
D619
D620
820
R648
510
R647
D616
D617
D618
R646
R659
2.2k
D655
330
330
R631
D640
NSPW310BS/B2RS/
MA152WK-X
D641
NSPW310BS/B2RS/
D654
MA152WK-X
MA152WA-X
D653
R653
180K
D652
MA152WA-X
2.2k
10k
10k
10k
R654
R656
R655
220
R643
D611
D609
D612
D607
820
R637
D603
D602
820
R636
D601
820
R635
D604
D608
220
1.2k
1.2k
R642
R641
R640
D605
D606
510
510
R638
R639
D613
D614
D615
D610
220
510
220
R644
R645
R660
IC652
RPM6938-SV4
47k
R657
4.5V
D657
0
R650
MA3062/H/-X
470
R630
R658
0v
4.5v
C654
4.7/6.3
UDZS5.6B-X
D651
0.022
C651
C652
10/6.3
47k
R652
C653
680p
R601
680
S601
R607
680 910
S608
R613 R614 R615
680 560
S615
S616
S602
S609
R608
R661
10k
R602
560
560
S603
S610
S617
R603
R609
IC651
PT6523LQ
680
680
680
R604
910
S604
R610
S611
R616
910 1.2k
S618
S605
S619
S612
R605
1.2k
R611
1.2k
R617
S613
S620
S606
R612
R618
1.5k
1.5k
S614
S621
2-4
SHEET 3
Page 7
Printed circuit boards
Main board
CP801
R344
R343
R325
C35
R355
D32
TU1
D712
D713
R36
D31
R34
R33
C33
C31
R1
C2
C12
R6
C1
C32
C81
C91
R7
C8
R729
R11
Q4
D10
R741
R746
C904
C710
R743
D705
J1
L1
D1
D2
C4
C5
C3
C10
C9
C903
R737
D715
R705
D707
D708
B761
R910
Q351
Q321
CP701
D321
R353
R354
C34
R31
R32
Q701
R709
C707
R707
R164
C703
C162
C173
C172
C92
C195
R734
C704
R163
R173
R736
R704
C711
R701
R714
R713
R712
R703
C712
L718
R735
L903
R174
R814
R813
D709
R730
R723
R811
R812
R716
D704
D710
Q31
Q32
R35
R4
R92
R91
R82
R81
B3
R728
R8
R9
C6
C910
R747
R742
R702
D706
CJ701
R162
C196
R750
R711
C163
R710
R722
C82
R242
C705
D711
C15
R721
IC901
C175
R161
C166
C176
C165
C13
C177
X701
C701
C168
IC161
R241
C905
C164
D903
C167
R171
IC701
C174
R172
D702
D904
C181
C702
C909
C197
C178
R708
L901
C182
R725
D901
D703
C713
C907
C192
D701
C906
C198
R724
C241
R195
C191
CP981
D310
C242
R247
R727
D760
Q906
R909
R352
R908
C331
R332
D242
R322
D79
Q905
R342
C332
C321
R246
R248
C306
D241
R731
Q782
C244
C307
R321
Q301
C782
R243
R245
C243
R244
C308
R809
R331
R351
R341
D782
Q781
D781
R719
C781
C902
Q241
D902
IC801
C322
R902
R903
Q901
R810
R720
C199
C341
R706
C342
R303
C303
C351
R806
Q907
Q902
R803
IC902
C301
R718
C309
C302
Q904
B905
C352
Q903
R901
Q977
R804
R805
R808
Q976
R807
C917
R302
C911
L902
C801
C901
IC301
R979
R738
R801
R301
R978
R977
R802
R717
R976
C305
C304
C912
2-5
Page 8
Front board
D601
D619
R602
S601
S603
S602
D620
R603
S605
D616
S608
R605
D618
IC652
S604
R601
R604
D617
LCD1
S606
R607
D613
S609
R608
D614
S610
Forward side
S611
D615
R609
Reverse side
D610
R610
S612
D611
S615
D612
R613
R614
R611
D609
S616
S613
D607
S617
R612
C653
R652
D608
D640
D641
D604
S620
D605
S621
D606
R615
R617
R618
R616
S618
S619
S614
D602
D603
D654
D653
R655
C652
D655
D652
C651
R656
D640
D641
R654
R631
R638
R637
R636
R639
R641
R660
R659
D651
R653
R640
Mecha control board
C423
D401
R661
R642
R426
R643
VR402
B409
R425
R411
R630
R424
IC402
C413
CP701
B407
C425
R410
Q401
C424
B406
D402
R401
R416
C419
C422
C414
B408
C421
B403
C416
R420
Q403
B413
R417
R415
C415
B410
B411
C418
R414
R418
R413
C417
R412
B404
CJ403
IC651
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
R657
D657
Q402
IC652
R650
R635
R645
R644
R658
C654
R646
R648
R649
R647
2-6
Page 9
< MEMO >
Page 10
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MA104SCH)
Printed in Japan
WPC
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