Block diagram
KS-FX911/KS-FX811
FM
5
AMANT
L1
CD-CH
2
FM/AM
1
TUNER
16
17
LCH
RCH
16
17
13
20
18 15
IC161
E.VOLUME
4
29
3
30
FRONT LCH
FRONT RCH
REAR LCH
REAR RCH
14
12
15
11
IC301
POWER AMP
17
19
23
21
3
5
7
9
REAR LIGHT (+)
REAR LEFT (-)
FRONT LEFT (+)
FRONT LEFT (-)
FRONT RIGHT (-)
FRONT RIGHT (+)
REAR RIGHT (-)
REAR RIGHT (+)
4
LCH
RCH
LINE OUTPUT
3
24
Dolby B type noise reduction system
with playback equalizer amp.
PBFIN 1/2 PBRIN 1/2
34/37 32/39
2
Head relay sectionReel disk section
IC401
7
RL
F/R
TAPE IN
49
45
MOTOR
IC701
MAIN MICON
IC601
LCD DRIVER
LCD
LED & KEYCONTROL PWB
1
MECHA CONTROL PWB
MAIN PWB
AB CD E F G
2-1
Standard schematic diagrams
Main amp.section
KS-FX911/KS-FX811KS-FX911/KS-FX811
CJ321
C318
0.1
2200/16
QQR0703-001
L901
R901
R902
C913
C909
D904
1A3G-T1
DSK10C-T1
IC301
LA47503
10/16
0.022
C301
C304
C901
1N5401-F64
D901
100
C902
10/16
6.8k
R903
11k
0.22
0.22
R910
10k
D906
22/16
C315
0.1
C317
QMFZ047-150-T
2.2/50
C314
4.7/25
C302
0.1
C316
QNZ0002-001
CP981
QAM0013-005
TU1
QAU0257-001
5
4
3
2
J1
QNB0100-002
CP701
QGB1214J1-18S
CJ701
QNZ0007-002
QNZ0095-001
R811
6.8k
MTZJ5.6B-T2
MTZJ5.6B-T2
D705
D706
CP801
R812
MTZJ5.6B-T2
MTZJ5.6B-T2
D707
D708
2.4k
MTZJ5.6B-T2
D709
R813
2.4k
4.7uH
0.1/50
C31
MTZJ5.6B-T2
MTZJ5.6B-T2
D710
D711
R814
A.GND
L1
1SS133-T2
D1
R31
1k 10k
R33
R32
1k
1k
C34
0.001
0.1/50
Q32
C32
KTC3199/GL/-TKTC3199/GL/-T
STDBY
TAPEIN
MODE
SUBMO+
SUBMO-
TAPE.L
A.GND
TAPE.R
REEL
DOLBY
F/R
FF/REW
MOTOR
REMOCON
JOG1
JOG0
LCDCE
LCDDA
LCDCL
KEY2
KEY1
KEY0
MTZJ5.6B-T2
MTZJ5.6B-T2
D712
D713
R801
R802
R803
6.8k
CH.R
R804
CH.L
1SS133-T2
D2
2.2/50
MS
100k
100k
100
330k
10/16
C3
10k
D3
ACC5V
MEMORY
PCNT14V
Vdd5V
100
R807
2SA1706/ST/-T
R5
Q3
22k
R808
330k
R805
82
R6
C12
0.01
Q2
R3
10k
1k
KRC102M-T
BAND
Vdd5V
JBUS.SI
JBUS.SO
JBUS.IO
JBUS.INT
100k
R810
JBUS.SCK
100k
R806
10k
10/16
120p
C8
C1
R7
C81
C91
R10
6.8
IFC
TUNER9V
IFREQ
MONO
S702
0.022
10/16
10
C2
C4
R1
KTA1267/YG/-T
Q1
R34
C33
Q31
R35
1.5k
EO
MTZJ5.6B-T2
D715
C801
R809
HD74HC126P
220/10
C35
PCNT14V
IC801
10V
0.1
C706
MTZJ9.1C-T2
D31
R36D32
9V
0.1
C707
0.047
10K
1SS254-T2
D4
470
1SS133-T2
PCNT14V
R2
R4
750
R753
D753
SLR-56MC3F
1SS254-T2
2.2k
PCNT14V
IFREQ
QSW0923-001
Q4
R8R9
8.2k
0.01
C6
22k
SD/ST
S.METER
1SS133-T2
D701
1SS133-T2
D702
1SS133-T2
D703
47k
R727
FF/REW
2.2k
R728
2.2k
R729
R701
47k
47k
R714
56k
R713
47k
R712
47k
R702
4.7k
R703
4.7k
R704
4.7k
R705
47k
R749
c14
56p
KRC102M-T
MONO
LC72366-9A81
0.001
C10
TUNER.BUS
10
C13
C11
IC701
REEL
Q701
KTC3199/GL/-T
0.1/50
C9
220/10
MOTOR
R91
R81
SUBMO+
1/50
C92
1/50
C82
R82
R92
4.7k
R706
C709
0.1
SUBMO-
TAPEIN
STDBY
EVOLCLK
EVOLDA
TU.R
TU.L
3.3k
3.3k
3.3k
2.2k
R748
R739
R724
R725
2.2k
2.2k
10k
10k
R730
R741
R742
R743
MS
MODE
F/R
JOG0
JOG1
SD/ST
S701
QSW0923-001
2.2k
R723
4.7k
R731
JBUS.INT
LCDCE
2.2k
R722
4.7k
R732
REMOCON
A.GND
IC161
R164R174
1.5k1.5k
TEA6320T-X
CH.L
R163
3.9k
TAPE.L
TU.L
TU.R
TAPE.R
R173
3.9k
CH.R
LCDCL
LCDDA
JBUS.IO
JBUS.SO
JBUS.SI
JBUS.SCK
2.2k
4.7k
4.7k
4.7k
4.7k
R721
R720
R719
R718
R717
10k
10k
2.2k
R734
R733
R738
DOLBY
BAND
10k
R735
KEY2
S.METER
C162
C172
1/50
C195
1/50
22p
C702
QAX0406-001Z
C163
1/50
C173
1/50
47/16
C196
X701
D704
10k
10k
R736
R737
KEY1
KEY0
27p
C701
1SS133-T2
R162
C167
C181
C182
1/50
C168
0.033
0.15
C165
C177
0.15
C175
C174 C164
0.0082 0.0082
22k 22k
R171 R161
2.2k 2.2k
R172
100/10
0.0047
C17
C705
0.22
C704
100/6.3
C708
47k
0.01
R716
C703
10/16
47k
R707
4.7k
R708
47k
R709
47k
R710
47k
R711
24k
R750
C178
C191
C176 C166
0.22 0.22
0.033
C192
1/50
0.0056 0.0056
47k
R195
R175
9V
PCNT14V
ILL10V
EO
TUNER9V
10V
Vdd5V
9V
PCNT5V
Vdd5V
IFC
PCNT5V
ACC5V
MEMORY
47k
47k
R165
R166
1/50
1/50
0.01
10
C197
47k
C198
R176
100/10
R243
150k
150k
C241
R241
R242
1/50
R244
KIA7810PI
R911
100
1k
R354
R353
R343
R333
R323
9V
180k
12k1k
R245R247
KTC3199/GL/-T
C243 D242
Q241
0.047
47
R246
16k
C242
IC902
L902
KRA102M-T
Q903
1k
R907
KRC102M-T
Q904
1k
1k
1k
RB721Q-T2
D241
22/16
0.1
C911
R906
47uH
100
R344
100
100
R334
100
R324
27k
R331
27k
R351
27k
R341
27k
R321
Q351Q341Q331 Q321
2SD2144S/VW/-T
R325
D321
2.2k
R355
1SS254-T2
2.2k
R345
D341
2.2k
R335
1SS254-T2
2.2k
C199
470p
Q905
56k
C244
R248
RB721Q-T2
0.47/50
C910
0.33
Q930
47k
KTA1267/YG/-T
R930
47k
QSQ1A11-V06Z
S930
R931
22k
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
1
C362
0.22
C361
0.22
47k
R322
KRA102M-T
Q782
2SA1855/RST
47k
R908
R909
1K
Q906
470p
KRC102M-T
C882
KTA1267/YG/-T
1SS254-T2
Q901
1k
R905
Q902
Tuner signal
CD signal
Tape signal
Front signal
C322
C782
1SS254-T2
R904
KRC102M-T
470p
C321
D310
1SS133-T2
R892Q891
KRC102M-T
47k
2.2/50
2.2/50
47/16
D782
47k
1SS254-T2
C15
KTC3199/GL/-T
R979
D909
2200/6.3
C912
C342
47k
R342
Q781
MTZJ11B-T2
D892
Q977
47k
D908
2.2/50
C332
C352
2.2/50
47k
47k
470p
470p
470p
R352
R332
C341
C351
C331
4.7/25
4.7/25
C303
C313
R301
4.7k
R305
C319
4.7k
KRA102M-T
D781
1SS254-T2
C781
220/10
9V
PCNT5V
PCNT5V
PCNT5V
1k
R891
1200p
47k
R882
Q881
KRC102M-T
D891
1SS254-T2
C891
0.1
Q976
R978
KTA1267/YG/-T
27k
IC901
AN80T05
10/16
10/16
10/16
10/16
C905
C907
C914
C906
KTA1267/YG/-T
Q907
R302
10k
KRC102M-T
C881
220/10
C904
0.1
R303
1k
Q301
R881
4.7k
22/16
R976
43k
R977
68k
DSK10C-T1
D907
D903
1A3G-T1
220/10
C903
Rear signal
2-2
HAB C DE FG
KS-FX911/KS-FX811
Mecha control section
Q403
5
390
R401
CJ403
QGF1219F1-10
24k
0.015
C411
R410
12k
R411
33k
VR402
18k
0.1
0.10.1
C413C412
R413
C417
IC401
CXA2560Q
4
C408
100p
2SB1322/RS/-T
3.3k
1A3G-T1
D402
47k
R422
Q402
DTC114EKA-X
R423
R417
10k
R418
15k
22k
R415
C421
0.01
R416
1.5M
C422
0.1
C415
0.01
IC402
MA3051/M/-X
D401
3.3k
R424
LB1641
10/16
C423
C425
0.01
0.1
C424
33
R425
C407
100p
22/16
C409
180 180
100p
C406
100p
C405
R406 R407
0.015
C410
R408
24k
R409
12k
33k
VR401
22/16
100
R412
C414
QGB1214K1-18S
0.1
C416
CJ401
220p
C418
R414
0.47/50
3.9k
C419
3
100k
R404
100p
C404
100k
R405
CJ402
100p
C401
100k
R402
100p
C402
100k
R403
100p
C403
2
1
AB CD E F G
Tape signal
2-3
KS-FX911/KS-FX811KS-FX911/KS-FX811
LCD & Key control section
5
S28
S27
S26
S31
S30
S29
S37
S36
S35
S34
S33
S32
S43
S41
S40
S39
S38
S42
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
S45
S17
RPM6938-SV4
S43
S44
S18
S19
IC602
ACC5V
R660
10k
REMOCON
10V
C606
UDZS5.6B-X
4.7/6.3
R661
47
JOG-0
JOG-1
LCDCE
R662
LCDDA
R663
LCDCL
R664
KEY2
KEY1
KEY0
R631
0
S42
S20
S21
D659
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
CN601
QNZ0006-001
3.3k
3.3k
3.3k
IC601
LC75873NW
LCD1
S1
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S8
S12
S9
S10
S11
S2
S3
S4
S5S6S7
3
R601R602R603R604
680560680910
S601
S602S603S604S605
D601
R620
820
820
R621
SML-310LT/MN/-X
R610
R609 R608 R605
1.2K
S612
910 680
2
R606R607
5606801.5K
S608
S609S610S611
R612R613R614
560680910
S615S616S617
S607
S614
R611
S606
680
S613
820
R622
D602
D603
R623
820
910
910
820
R626
R624
R625
D606
D607
D608
510
R627
510
R628
D609
D610
D611
510
R629
510
R630
D612
D613
D614
820
R631
820
R632
D615
D616
R633
910
910
R634
D617
910
R635
R636
820
910
820
820
R639
R638
R637
D619
D618
D620
820
R640
D604
D605
R680
S68
0
EN601
QSW0976-001
R641
430
430
R642
D642
D641
NSPW310BS/BRS/
NSPW310BS/BRS/
C608 C609
0.015 0.015
430
R643
D643
NSPW310BS/BRS/
R650
0
Q641
2SB815/7/-X
Q642
R644
470
1k
R646
UN2211
R652
R651
S46
S47
S48
S49
S50
S51
S52
S53
S54
S55
S56
S57
S58
S59
S60
S61
JOG0
JOG1
47k
47k
KEY1
KEY2
KEY0
10V
ACC5V
1SS355-X
1SS355-X
D654
D653
LCDCE
LCDCL
LCDDA
47k
R645
1SS355-X
1SS355-X
D656
D657
R653
1k
1SS355-X
D655
1SS355-X
D658
D651
R655
R654
220
UDZS5.1B-X
390k
C601
4.7/6.3
330k
R656
1SS355-X
D652
C602
C603
0.01
220P
C604
S62
S63
S64
S65
S66
S67
COM1
COM2
COM3
R659R658R657
10k10k
10k
C605
0.22
0.22
S1
S3
S2
S4S5S6S7S8S9S10
S11
S12
S13
S14
S15
S16
1
2-4
HAB C DE FG
Printed circuit boards
Main board(Forward side)
C901
KS-FX911/KS-FX811
IC301
DETACH
S701
IC901
C781
C909
C913
D901
Q782
D708
C182
C198
C197
D709
Q930
C906
C178
R805
D710
C181
Q701
R807
D711
L901
C905
B903
C709
D712
C177
C168
D782
C782
R808
R731
D713
C914
C167
C176
R749
R720
D714
CP981
C314
C315
B301
C316
C317
B302
C302
C303
B303
C341
R342
R341
R248
C321
R322
R321
D242
R246
C15
C244
C304
C17
D241
R247
Q891
R245
C243
S1A
C912
R243
C241
C891
D892
R891
Q241
C911
C313
C301
R892
D891
C242
IC902
C351
C910
R882
Q881
C902
R244
C322
C331
R351
R911
Q902
R905
R979
R331
C318
C881
C332
C352
R977
Q903
B901
D903
R901
Q977
C882
D705
D904
D906
R910
D310
R195
Q301
D908
R165
R166
C192 C195
D909
R176
R175
D715
Q976
Q904
Q906
C706
R909
Q907
C707
D781
C199
R750
R738
R733
R908
D706
R931
R930
Q905
C191
D707
R242
R241
Q781
B902
D907
C319
R302
R303
R301
R305
C342
R881
R902
R903
Q901
R904
R976
R978
R906
R907
R724
R712
R727
D703
R714
R713
D701
R701
R806
C166
R172
C904
CJ701
R719
R171
R746
D702
C175
R718
R162
B904
R747
R725
R739
C907
R161
C196
C174
R748
R717
L902
B905
CP701
R729
R728
R803
R804
GEB10027A
C903
C164C165
C172 C173
C702
D753
C163
CJ321
B304
C362
R723
R743
Q32
D31
R721
R343
R334
R333
Q331
Q341
R345
NON-POL
Q31
C34
R31
R34
Q3
R5
D3
Q1
D4
C82
C92
R91
R92
C93
Q4
R9
R8
R722
R735
R736
R801
R802
CP801
R323
R324
R335
C162
B906
R706
R734
IC801
C705
R707
R709
R730
R710
R708
R809
C704
R711
R732
R716
R702
R705
R704
C35
D704
R741
C703
D32
R36
Q2
R3
R2
B
C708
R703
R742
C801
S930
R163
R164
R812
R811
R814
R813
R174
R173
A
X701
C701
B801
B802
R753
R810
B305
C361
R355
C33
C31
R33
R32
R35
C4
R1
C5
R6
R4
C83
R82
R7
C8
C7
C10
C6
C13
R737
J1
R354
R353
R344
Q321
Q351
R325
D2
L1
D321D341
C32
C12
R81
C81
C91
R10
R11
D1
C3
C2
C1
TU1
C11
C9
OPEN
C14
S702
Front board(Forward side)
LCD1
D607
EN601
D609
S607
D601
S614
S617
D602
D603
D605
R611
R612
R614
D604
S615
S613
D606
S606
R605
IC602
S616
R613
D608
R606
D618
D620
R637
D641
R635
R636
R638
S605
R604
D642
R602
D643
J601
D610
S608
R607
D611
S609
R608
D612
S610
R609
D613
S611
R610
S601
R601
D614
S612
D615
D616 D617
S603
S602
R603
D619
S604
2-5
KS-FX911/KS-FX811
Main board(Reverse side)
5V
R162
R717
ILL10V
PCNT
25
24
R746
ACC5V
C904
R171
R701
R714
R713
R718
REMOCON
FM
R172
D701
R719
1
IC901
TU
10V
D901
C914
C166
C167
IC161
C176
D703
D702
R727
R749
C709
R731
R720
R806
D714
1
C168
C905
R712
R808
D713
R807
C177
R242
C782
Q701
D712
C181
C178
D782
Q930
C198
C781
D711
C906
C182
C191
R241
Q782
E
R750
R733
R805
D710
D709
Q781
9
10
12
11
2
3
C197
R738
D708
1
D904
C909
C913
C192
R176
E
D903
D907
R910
D906
E
R302
R303
D310
R195
R301
Q301
Q905
D706
R908
E
R305
D908
D909
C352
R175
C882
R881
E
Q906
R902
R909
R901
E
Q901
R904
Q977
Q976
E
Q904
R978
E
Q907
E
R907
R906
D715
D705
C706
C707
R165
R166
E
E
D781
C199
R931
R930
E
D707
L901
Q902
R976
Q903
4
C319
15
C881
R977
CJ701
C332
R331
R351
C342
R903
13
C902
E
C322
E
R905
R911
5
C318
Q881
C331
C351
E
14
R979
C316
15
16
6
7
8
CP981
C314
C317
C302
C303
C313
C341
R342
R341
R891
R882
C891
R892
C241
D892
D891
R244
E
Q241
R247
C242
R246
C912
IC902
C911
C910
C301
E
R243
R245
R248
C304
Q891
1
C321
R322
R321
C315
C243
25
C244
D241
C17
IC301
C15
D242
DETACH
S701
C901
24
2
CH.L
R711
R710
R707
R709
R730
C704
IC801
R708
R706
SI/SO
C705
R814
R813
R174
R173
CP701
C162
TAPE.L
R812
TAPE.R
IC701
R810
12
TU9V
NC
9V
ANT
R164
C702
C164
C172
KEY0
C196
KEY1
C195
40
KEY2
18
C903
C174
R804
LCDSCK
LCDSO
MEM
R161
R747
R725
R724
R748
R739
L902
LCDCE
C165
ENC2
14V
C907
R729
R728
R803
C175
ENC1
GND
C163
R163
R811
C173
41
1
80
X701
C701
D753
R753
GNDNCNC
NC
T04
E
R721
1
S930
R723
CONT
SCK
CH.R
AGND
CP801
1
E
R323
R335
Q331
R334
R333
R343
R344
C35
D31
R36
D32
E
Q2
E
Q1
C703
C708
C83
R734
64
R716
65
D704
R702
R705
R704
R703
R742
R732
R741
14
C801
R809
GEB10027A
CJ321
R324
C362
C361
R353
R354
OPEN
E
R325
E
L1
Q321
D321
NON-POL
C33
C31
C32
C4
R1
C5
R6
C12
C81
R81
R91
R92
C93
C91
R7
C8
R10
C10
R11
C13
S702
Q351
E
R345
R355
Q341
D341
Q31
R33
Q32
C34
E
R31
R32
R34
R35
Q3
E
R5
D3
D4
R3
R4
R2
C82
R82
C92
Q4
C7
R9
E
R8
C6
R743
R722
R737
R735
R736
R802
R801
T1A
J1
D2
D1
AMANT
FMANT
NC
NC
GND
FMVt
C3
GND
GND
C2
AMVCC
GND
C1
FMOSC
FMVCC
VCC
AMVt
GND
Lch
Rch
TU1
GND
NC
IFC
S.METER
C11
SD/ST
SNC
C9
NC
VCC
MUTE
C14
Front board(Reverse side)
R631
2-6
R633
D658
D652
R632
R634
D657
D642
R655
D643
J601
R668
R669
D641
R643
R642
R667
R666
C602
C603
R641
R680
C601
R656
R658
C607
C604
C605
R659
R670
R657
CN601
R681
D660
D653
D656
D654
D655
R653
R651
R652
D651
R654
R664
R663
R662
R645
R644
R661
IC602
R660
D659
R646
R625
Q642
R626
C608
Q641
EN601
R627
R650
R628
C609
R621
R629
C606
R622
R630
R620
R623
R624
R639
R640
Mecha control board
R411
VR402
C423
D401
R426
B409
R425
T11
R424
IC402
FSMW1093A
1
C413
B407
C425
R410
Q401
C424
B406
D402
R401
R416
C419
C422
C414
B408
C421
B403
C416
R420
Q403
B413
R417
R415
C415
B410
1
B411
C418
2
R418
C417
R414
R413
B404
R412
21
CJ403
KS-FX911/KS-FX811
11
C412
1
IC401
31
C411
B405
B412
B402
R423
VR401
C410
CJ401
R408
B401
C409
C405
R407
C406
C408
C402
R406
C407
R403
1
R405
C403
R402
2
C404
R404
C401
1
R422
Q402
2-7
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