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CASSETTE RECEIVER -
Service Manual, Part lists, Schematics
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1
3
4
2
J1
5
Block diagram
OUTLR OUTRR
CJ321
LINE OUT
CJ403
CJ402
CP701
CJ401
CP981
CP701
COM1 COM3 S3 S52
CJ701
A B C 2-1
SUBMO+,SUBMOOUTLF,OUTRF OUTLR,OUTRR
TAPEIN,STANDBY,14V MODE,REEL,PHOTO
FM ANT AM ANT
TU1 Tuner pack
Lch Rch
IC161 E.volume
IC301 Power amp.
IC401 Head amp.
FWD-L,FWD-R REW-L,REW-R COMMON-L COMMON-R
IC402 Motor driver
EQ,BAND,IFC,IFREQ S.METER,SD/ST,MONO EVOLSCK EVOLSO TAPE L, TAPE R STDBY,TAPEIN,REEL,FF/REW MODE,SUBMO+,SUBMODOLBY,F/R,MOTOR,MS
Front L+ Front LFront R+ Front RRear L+ Rear LRear R+ Rear R-
OUT1 OUT2
IC701 System CPU
IC901 Regulator
Front L Front R Rear L Rear R
LCD
VDD,CE DATA,CLOCK
ENC1,ENC2,KEY0,KEY1,KEY2 LCDSO,LCDSCK,LCDCE,DETACH
JBUS.SCKI JBUS.SI JBUS.INT JBUS.SO JBUS.IO
PCNT14V
IC651 LCD driver
Lch,Rch KEY0 KEY2
IC801 Bus buffer
KEY MATRIX
LED14V
CP801
SI/SO,SCK
KS-FX280
LED
MEMORY
KS-FX280
< MEMO >
2-2
KS-FX280
Standard schematic diagrams
Tuner & Main amp section
CJ321 QNN0170-001
5
TU1 QAU0257-001 IC301 LA4743K R353 J1 QNB0100-002 R91 L1 R81 4.7uH C82 1/50 C92 1/50 R343 1k 1k R354 R344 100 100
47k R322 R164 C199 R162 1.2k 2.2k 0.1
KRC102M-T R11
1SS133-T2
1SS133-T2
47k
R342
EVOLDA
47k
EVOLCLK
0.022
8.2k
R8
R321 R341
27k 27k 27k 27k C352 C332 2.2/50 C342 2.2/50
C322 2.2/50
2.2/50
0.01
0.01
10
10
Q4
0.1/50
10/16
10/16
120p
0.001
R9 22k
R161
22k
D1
D2
R331 R351
R7 10k
CH.L
C12
C10
C6
C2
C4
C1
C8
C81
C91
R1
C9
0.0082
R4
C164
R82
R92
1/50
1/50
R163 TAPE.L GND
3.9k
0.0056 C181
C163
C162
0.15
0.22
1/50
C182
1/50
470p
470p
470p
C165
C166
C167 0.033
C168
470p
C351
C331
C341
C321
TU.L
R6
C304
C303
C301
C305
2.2/50
10/16
0.01
0.01
R31 1k R32 1k R33 C33
R34 10k Q351 Q321 2SD2144S/VW/-T
MTZJ9.1C-T2
220/10
4
1k 2.2/50 C34 0.001 Q31
C308 C306 R301 C307 0.1 0.1 0.1
C309
0.1/50
0.1/50
C175
C178
0.0056 C191
1/50 C195
47/16 C173
C35
Q32
D31
1/50
R35
R173
3.9k
0.033
1/50 C192
C172
0.15 C176
C31
C32
0.22
TU.R
1/50
C177
D310 1SS254-T2 1SS133-T2 R325 2.2k 2.2k Q782 KRA102M-T D321 R355 Q781 KRA102M-T
4.7k
1.5K
R302
0.0082
R10
6.8
TAPE.R
C174
R171
R36
470
R174
22k
CH.R
MTZJ11B-T2
R303
KTC3199/GL/-T
1k
27k
1.2k
FM/AM.OSC
100/10 C198
1SS133-T2
S.METER
47/16 D782
100/10
C782
D32
C781
1SS254-T2
220/10 D781
Q301
R352
0.01
R195
10 C197
R332
47k
C196
R172
2.2k
47k
MONO
IFREQ
SD/ST
KRC102M-T
IFC
EO
IC161
REMOTE14V
PCNT5V
TEA6320T-X
AMVCC
FMVCC
9V
9V
PCNT14V
CP701
QGB1214J1-18S
Vdd5V
9V
PCNT5V
ANALOGUE.BUS
TU.R
TU.L
9V
C901
R245
10V
150k
TAPEIN MODE
150k
STDBY
Q905 2SA1855/RST/-T
12k
2200/16 D901
R243
180k
1N5401-F64 C243 0.047 RB721Q-T2 D242 R908 47k
R241
R242
SUBMO+ SUBMO9V PCNT14V
1/50
RB721Q-T2
R246
D241
C244
R248
100
LCDSCK
R247
JBUS.SCK
JBUS.IO
JBUS.SI
TAPE.R REEL MS IC701 LC72366-9A74
JBUS.SO
KTC3199/GL/-T
1k C242
22/16
3
LCDSO
LCDCE
R244
GND
0.47/50
TAPE.L
22k
56k
R909 1k
Q906 KRC102M-T
2.2k
2.2k
2.2k
4.7k
4.7k
4.7k
3.3k
3.3k
4.7k
F/R FF/REW MOTOR CJ701 VMC0334-001
100
Q977 R978 27k
Q976 KTA1267/YG/-T R976
R901
DOLBY
KTC3199/GL/-T
QQR0703-001
C241
Q241
L901
C302
0.1
4.7/25
82
CP981 QNZ0002-001 C902
R723
R722
R721
R720
R719
R718
R725
R724
R717
C702 22p
C701 27p
43k
R979
C711
68k
X701
R977
47k
10/16
QAM0013-005
D718
D760 RB721Q-T2 PCNT5V
1SS133-T2
D701
QAX0406-001Z
0.01 C705
IC902 ICTA7810PI
47uH
ILL10V
1SS133-T2
D702 0.22 IC901 C917 0.33 EO C704 ILL10V FM/AM.OSC 10V C911 0.1
REMOCON
1SS133-T2
D703
R902
6.8k
AN80T05
R903 11k
LCDSO LCDSCK LCDCE ACC5V KEY2 KEY1 KEY0 DETACH IFREQ MONO FF/REW Vdd5V R727 47K FM/AM Vdd5V 100/6.3
D704
R716
1SS133-T2
R728 R729
2.2k 2.2k
47k
9V PCNT5V IFC Vdd5V PCNT5V L902 47uH D902 1SS254-T2 D904 1A3G-T1 C909 0.01
C703 10/16
D705
D706
D707
D708
D715
D709
D710
D711
C710
0.01
0.01
2
Q903 KRA102M-T FMVCC
Q901 KTA1267/YG/-T D903
C712
C707
10k
0.1uF
10k
AMVCC
220/10
1A3G-T1
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
100/16
R736
R737
L903 ACC5V 47uH Q904 KRC102M-T Q902 KRC102M-T
C912 2200/6.3
C13
C906
C905
C904
2.2k
10k
10k
4.7k
R738
R733
R734
REMOTE14V
JBUS.SI JBUS.SO C801 R809 0.047 10k JBUS.IO
R701 R702 R703 R704 R705 R712 R713 R714
47k 47k 4.7k 4.7k 4.7k 47k 56k 47k
R743
R731
R735
MEMORY
R730 2.2k
4.7k
10k
R706 R707 R708 R709 R710 R711 R750
4.7k 47k 4.7k 47k 47k 47k 24k
MEMORY
Q907 KTA1267/YG/-T
KTC3199/GL/-T R801 100k R802 100k Vdd5V
Q701
SUBMO+
SUBMO-
MOTOR
TAPEIN
STDBY
R803 CP801
100 JBUS.INT
R810
REMOCON
DETACH
MODE
REEL
F/R
MS
DOLBY
KEY2
KEY1
100k
JBUS.SCK
R814
6.8k
R807
R808
R804
330k
2.4K
GND
330k
100k
QNZ0095-001 R813
CH.R
J.BUS
JBUS.INT
S.METER
FM/AM
SD/ST
100
22k
KEY0
C907 10/16
C903
C910
220/16
10/16
10/16
10/16
QMFZ047-150-T
R812
2.4k
R811
HD74HC126P CH.L
1
6.8k
R805
IC801
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
Tuner signal CD changer signal Tape signal Front signal Rear signal
A
B
R806
C
D
E
F
G
2-3
1 3 4 2 5
Head amp.Mecha control section
A B
CJ403 QGF1219F1-10 CJ402 390 R401 C401 100P 100k 100P 100k 100P 100k 100P 100k
C
R402 C402 R403 C403 R404 C404 R405 100P C405 100P C406 180 R406 0.015
C409
100P 22/16 C407 180 R407
100P C408
KS-FX280
2-4
C410 R409 24k R408 12k VR401 33k
0.015 C411
R411 12k VR402 33k
R410 24k
D
CJ401 QGB1214K1-18S
C414
22/16 R412 100 0.1 C412 0.1 C413 IC401 R413 C416 C418 0.1 220P C417 18k 0.1
KS-FX280
0.47/50 C419
R414 3.9k
E
R417 10k D402 R418 15k C421 0.01 R415 22k 1A3G-T1 Q403 2SB1322/RS/-T 3.3k R422 910k 0.1 C422 R416 Q402 DTC114EKA-X 47k R423 C415 0.01
F
MA3051/M/-X IC402 LB1641 D401 R424 3.3k C423 10/16 C425 0.01 0.1 C424 R425 33
G
Lch signal
H
1 3 4 2 5
LCD & Key control section
A
R649 820 R648 820 510 R647 D620 D619 R646 510 270 R645 D618 D617 D616 R644 270 D610 D615 D613 D614 R643 270
B
R642 270 1k R641 D609 D607 D612 D611 R640 R639 510 1k D608 R638 510 820 D606 R637 D605 D604 GND 5V LED10V R636 R655 R656 R635 820 R654 10k 10k CLOCK R5V KEY2 KEY1 D657 MA3062 R657 10K KEY0 CP701 VMC0335-001 10k 820 D603 D602 REMOCON
D601
C
IC652 RPM6938-SV4 C654 4.7/6.3 R658 47 R630 NSPW310BS/BRS/ D640 330 R631 NSPW310BS/BRS/ D641 330 D655 MA152WK-TX
LCD1
D
D654 S3 S4 D653 S5 S6 R653 S601 180K 680 S7 S8 S9 D652 R607 R601 S10 S11 S12 S13 C651 S14 R651 1.5k R652 S15 0.01 4.7/6.3 680p C653 S16 S602 S609 C652 47k S17 R614 S18 560 R608 560 560 R602 S19 S20 S21 S22 S23 S24 S617 S25 S603 S610 S26 R609 R603 680 680 INH S52 S51 S50 S49 OSC COM1 S27 COM3 CLOCK R615 680 S28 S48 S47 S3 S4 S5 S6 S611 S618 S604 S7 S8 R604 910 R616 910 S9 R610 910 S10 S11 S12 S46 S45 S44 S43 IC651 S42 S41 S40 S39 S38 S37 LC75823W S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 COM2 MA152WA-TX MA152WA-TX MA152WK-TX S615 S608 R613 680 680 S616
E F
S619 S620 S621
S13 S14 S15 S605 1.2k S612 S16 R605 R611 1.2k R617 1.2k 1.5k S613 R612 1.5k S606 R618 S614 S30 S31 S23 S24 S25 S26 S29 S17 S21 S32 S27 S28 S18 S19 S20 S22
S36 S35 S34 S33
S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 COM1 COM2 COM3
G 2-5
KS-FX280
KS-FX280
KS-FX280
Printed circuit boards
Main board
D601
Front board(Forward side)
D609
GEB10033A R601 CP801 S601 8 R 1 3 1 7 IC901 1 C901 9 C305 Q351 6 4 L901 S603 D619 D616 R603 S604 R611 C653 R652 S620 S1A R612
S613
5
T1A CJ321 L R354 E
S621 D606
R618
D640
R901 E R353 C35 R36 R34 R33 J1 C15 Q321 R325 R355 D32 2 1 CP701 E 18 17 D901 C308 C309 R602 S602 R605 D617 R604
D605
R617
S608
R615
R616
S618
C306
C304 E R321 25
IC301
D641
D604
C907
C906
Q906
D903
D620
S605
D618 LCD1 D607 D608 S617
S619 S606 D613 D614 S610 D615 S611 D610 S612 D611 D612
D31
D904
R343
D321
Q905
L1 TU1 AMANT FMANT NC NC 1
C342
R341 C322
IC652
S609
S615
R613
S616
R909 R908
E
C197
C34 R31 R32
R162 C82
C198 C168
C33
R161 C332
C31
C162 E R163 R173 R174 R814 R813 R164
C163 C166
C167 C181 C164 C182 1
C2
R1
4
D2 C4
FMVt GND GND Q31 Q32
R352 C331 R332
GND
5
C351
D1
C165
R322 R342 C321
C13
C909
C341
R344
C905 13
1 R331 R351 C781 C301
R35
R242
C12 10 R6
C172
R724
D310
R302
Q782
R4
C1
32
VCC
C92
17
R725
C782
C902
C303
C32
AMVt
C196
R301
FM/AM OSC FMVCC
C191
E
E
D782
GND
R902 R903
R303
AMVCC
Q301
C173
16
IC161
C352 C302
R171
C195
C199 R706
GND L-CH R-CH
15
C177
C5
R811
C175
C174
C241 E Q781 D781 R195 R243 R245 C243 R244
R978
C178
R92 R91 R7 R82 R81 B3 R701 R714 R713 R712
R812
C176 R241
C192
E E R977
C3
GND NC
Q701
R708
Q907
Q901
R979
R976
C81 C91
Q977
Q976 E
Front board(Reverse side)
R639 C651
R642
R172
R638
R728
C652
IFC/AGC
20
C242
C10
S.M. SD/ST SNC NC C8
D655
40
Q904
R246
R750 R711 R710
41
Q241
R8
R738
R729 R9 25 R11
E Q903
R651
D242
25
D640
C6
3
C9
R730
R709
D241
VCC MUTE
D902
B905
R655
R707
Q4 E D10
R733
C244 R248
R704 R703
R734
C910
64 65
24 D701
R718
R637
R631
D641
R630
R736
R717
C711
IC801 1
R746 R741 R742 R747
C903
R641
R727
R735
R705 R737 D707 D708 D715 D712 D713
C904
D702 80 1 IC701 D703
R716
C703
C704
R807
C705 X701
64 C911 C917 C912 1 15
1
IC652
14
L903
B761
R722
D711
R721
D704
15 1
C710
R743 D706 R702
R731
C701
C702
C707
D705
R719
R720
CJ701
R809
D760
2
C712 L718 D709 R723 D710
R411
R410
R416
C422
C421 R415
R414
C412 VR401 1
Q401 1
B407
VR402
B410 B411
R418 21 R413
C410
R408 B401
R420
R417
R401
T11 FSMW1093A
C424
B408
Q403
C417
R407 C402 C408 R403 C407 R402 C403
R423
R424 C423 R426 B406 B403
C401
R404
C411
C405 C406 R406 R405 C404
31
C409
B404
B412
D401
C425
IC402 R425
D402
C415
1
B413
2
CJ403
B405
CJ401 1
1
A
B
C
2-6
D
E
F
G
Q402
E
R247
Q902
R653
T1A R643
R635
D652
D654
R607
R608
R609
R610
R614
R648 D653 R656 R654 33 R649 32 R645 R646
R802 R804 R805
R803 7 R808 R801
R636 R640
48 14 49 CP701 IC651
17
D657 R644 R658 R657
R647
2
16
C654
R810
R806
L902 IC902 C801
Mecha control board
C413 C419 C414 C416 C418 R412 11
B402 IC401
1
B409
R422
2
D603
D602
CP981
S614
E
E
E
E
H