Page 1
KS-FX925R
SCHEMATIC DIAGRAMS
CASSETTE RECEIVER
KS-FX925R
CD-ROM No.SML200205
SOUND
ATT
U
SOURCE
R
D
VOL
Contents
F
VOL
EQ
DAB
TAP
E
Area Suffix
EE --------- Russian Federation
Block diagram
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
2-1
2-3
2-6 7
No.49742SCH
May. 2002
Page 2
1
AB C
2
3
4
5
Block diagram
SUB
MOTOR
SWITCH
TAPE END.STANDBY
MAIN
MOTOR
HEAD
2-1
TO CD CHANGER
J801 CP901
SCK
SI/SO
IC801
CHANGER CONTROL
HD74HC126FP-X
JBUS SI
JBUS SO
JBUS I/O
J1
AM
FM
JBUS SCK
TU1
AM/FM TUNER PACK
QAU0222-001
COMP OUT
IC71
SEEK/STOP
RDS DETECTOR
SAA6579T-X
Tuner.Power AMP.Changer/System Controller
CD RCH
CD LCH
SD/ST
SMETER
TO SPEAKER
CONNECTOR TO REAR LINE OUT
J321
L/R F
L/R R
IC301
POWER AMP.
LA47505
OUT LR
OUT RR
OUT LF
OUT RF
IC161
E.VOLUME
TEA6320T-X
TUNER L/R
TAPE L/R
IC701
SYSTEM CONTROL MICON
UPD178018AGC-624
RDSDA
RDSCK
FRONT L/R
REAR L/R
F/R
MODE
STANDBY
FF/REW
MOTOR
SUBMO
TAPE IN
DOLBY
MS
REEL
KEY 0 – 2
CP401
CJ601
CN403
MOTOR
TAPE IN
MODE
STANDBY
TAPE END
REEL
DOLBY
F/R
MS
LCH
RCH
FF/REW
SUBMO+
CN401
SUBMO-
IC602
REMOTE SENSOR
RPM7138-V4
REMOCON
LCDDA
LCDCK
LCDCE
CN601
CN402
LCH
RCH
METAL
IC401
PB EQ
CXA2560Q
IC402
DC MOTOR DRIVER
LB1641
MECHANISM CONTROL
LCD1
QNZ0450-001
S1 – S68
COM1 – COM3
IC601
LCD DRIVER
LC75873NW
KEY
S601
–
S617
LCD DRIVER/KEY SWITCH CIRCUT
KS-FX925R
Page 3
KS-FX925R
< MEMO >
2-2
Page 4
Standard schematic diagrams
Main amp section
TU1
QAU0221-001
5
J1
QNB0100-002
L1
4.7u
D5
D6
1SS133-T2
1SS133-T2
C33
C43
150P
1k
R34
R44
R33
1k
R32
1.5k
C31
0.012
2SC3661-X
4
Q32
Q31
2SC3661-X
R748
68k
Q701
2SC2412K/R/-X
R43
10k
C32
R42
1k
0.056
C41
0.001
2SC2412K/R/-X
Q42
1k
Q41
R31
2SC2412K/R/-X
S5V
10V
STANDBY
TAPEIN
MODE
SUB02
SUB01
3
REEL
MSOUT
DOLBY
F/R
FF/REW
MOTOR
CP401
QGB1214J1-18S
R706
2
D703
D702
D701
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
1
SLR-56MC3F
R752
D712
510
10K
R705
R704
D705
D704
MTZJ5.6B-T2
MTZJ5.6B-T2
REMOCON
10K
ENC2
10K
ENC1
LCDCE
LCDDA
R703
0R0
LCDCK
R702
0R0
KEY2
R701
0R0
KEY1
KEY0
R744
10K
DIMOUT
D710
D706
D707
D708
D709
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
MTZJ5.6B-T2
J801
QNZ0095-001
0.47/50
1k
C42
2.2/50
FMEO
9V
CH.R
CH.L
2SA1037AK/RS/-X
R2
1.5k
R41
AMEO
4.7k 47k
Q1
DTC114EKA-X
C1
100/16
R1
33
FM/AM
10V
C77
47/16
0.01
C76
C75
47p
R73
X71
2.2k
QAX0263-001Z
C74
2.2k
82p
R72
R750
SAA6579T-X
47K
RDSCK
R58
15K
R59
Q52
470
2SC2412K/R/-X
C55
0.47/50
R806
R807
100k
R808
100k
R809
100
330k
R810
IC801
HD74HC126FP-X
KS-FX925R
LA47503
IC301
47/16
J321
QNN0489-001
R301
27K
C308
2.2/50
RR
270
4.7/25
4.7/25
STAGE0
FM&AM_OSC
SK/ST
0.015
C244
RL
R351
R331
R352
R342
100
100
1K
FR
FL
2SA1855/RST/-T
Q904
R891
D353
1SS355-X
R353
2.2K
1SS355-X
R333
2.2K
D333
2SD1048/6-7/-X
0R0
B904
D902
D903
Q902
47k
R907
47k
1K
R906
R905
10k
Q901
DTC114EKA-X
R908 R909
2.2k
Q903
DTC114EKA-X
R892
47K
D891
1SS355-X
C891
C909
2200/6.3
1K
1SS355-X
D892
0.1
FL
RL
SDA
PCNT
DIMIN
SCL
9V
RR
FR
MUTE
LMETER
Q976
UN2211-X
MEMDET
R976
ACCDET
9V
10V
PCNT
S5V
SD/ST
47K
R711
FMEO
AMEO
C702
0.1
TELMUTE
FM/AM
MONO
AFCK
R247
1SS355-X
220k
0.047
C713
LMETER
C243
D242
0.047
D241
1SS355-X
22/16
R307R6R308
R306
R309
47K
47K
47K
47K
B903
0R0
27K
R977
12K
R978
Q977
2SA1037AK/RS/-X
100K
L903
L902
2SA1037AK/RS/-X
C703
220/10
330P
C714
R243
12k
R242
180K
Q241
C241
1/50
100
R245
2SD601A/R/-X
22K
R244
1K
R246
C242
Q891
UN2211-X
47K
R241
1K
1K
R322
R332
Q351
2SD1048/6-7/-X
Q331
R782
R781
4.7K
47K
Q784
DTC114EKA-X
D782
1SS355-X
D783
1SS355-X
1SS355-X
1SS355-X
0.1/50
18k
4.7K
1/50
220/10
C905
R904
C907
R903
C908
C5
1/50
C6
R12
0R0
220/10
C9
C2
47p
Q2
R3
IC71
C54
0.1
2SC2412K/R/-X
R57
C53
10K
0.0047
10k
0.047
C3
D7
R55
R11
2SA1037AK/RS/-X
Q3
D3
D2
1SS355-X
R4
3.3k
C72
560P
C73
2.2/50
R71
2.2k
10K
Q51
R56
2.2K
R803
100
C801
0.047
Q9
22K
DTC114EKA-X
47k
R5
1SS355-X
1SS355-X
SK/ST
SMETER
MONO
SD/ST
SEEK/STOP
0.022
C71
R751
47K
RDSDA
TAPE.L
TAPE.R
R53
47K
C52
0.01
R60
47K
47K
330P
C51
Q53
R54
DTC114EKA-X
ENC2
ENC1
DIMOUT
47K
R709
REMOCON
BUSSI
BUSSO
BUSIO
KEY0
100K
R805
BUSSCK
KEY1
KEY2
22k
LCDCE
R804R802
LCDDA
LCDCK
330k
100k
R801
1/50
0.1/50
Q8
47p
0.015
0.015
C8
2SC2412K/R/-X
C81
C82
Q4
DTA114EKA-X
D4
1SS355-X
Q5
8.2
DTA114EKA-X
AFCK
FMOSC
9V
SM
RDSDA
RDSCK
C708
C707
27P
C706
27P
C705
C704
R81
12k
R82
12k
C7
Q7
4.7k
R8
4.7k
R9
Q10
0.1
DTA114EKA-X
C4
C164
R162
1/50
0R0
TAPE.L
0R0
R164
0R0
R163
R161
C163
0R0
330P
C10
ACCDET
47k
R732
QAX0406-002Z
MODE
47k
R733
R726
MOTOR
47k
R734
MTZJ5.6B-T2
S703
R728
R727
C162
C161
S702
MSIN
47k
R735
R730
1/50
1/50
2.2/50
C711
QSW0451-001
SUBMO1
SUBMO2
47k
47k
R737
R736
D711
QSQ1A11-V06Z
4.7k
4.7k
4.7k
TAPE.R
TU.R
CH.R
C710
C709
0.1
R731
10k
0.1
X701
0.1
100/6.3
18k
Q6
R83
2SC2412K/R/-X
2SC2412K/R/-X
4.7k
R10
C165
100k
S701
R739
QSW0451-001
PCNT
DIMIN
MEMDET
TELMUTE
STANDBY
47k
R738
390
R729
47K
R749
100
R718
R719
R720
R721
R722
R723
R724
R725
TU.R
TU.L
18k
0.001
0.001
C83
C84
R84
R168
CH.L
C166
2.2/50
C168
MUTE
UPD178018AGC624
100/16
47k
R747
IC161
TEA6320T-X
47k
R746
2.2K
22K
R167
C172
0.15
C173
0.0082
C178
0.0056
C176
0.033
C174
0.22
C171
0.22
C175
0.033
C169
C170
0.0082
22K
R165
R166
47k
R740
STAGE0
FF/REW
TAPEIN
IC701
4.7k
R717
BUSIO
C177
0.15
0.0056
2.2K
220K
R169
R170
47K
R741
R742
REEL
4.7k
4.7k
4.7k
R716
R715
R714
BUSSCK
BUSSO
BUSSI
1SS355-X
220K
1SS355-X
56K
R743
SCL
SDA
F/R
DOLBY
Q841
R841
1k
C841
0.1/50
C181
4.7/25
4.7/25
C183
270
R173
R172
C184
C182
10
C179
D161
D162
47k
R171
0.082
C180
100/16
47k
R745
9V
R707
4.7K
R708
4.7K
R712
47K
C701
0.001
R713
SEEK/STOP
10k
R842
2.2K
BZ841
QAN0002-001Z
DTC114EKA-X
TU.L
1/50
C167
47/16
10k
10k
10k
10k
10k
4.7k
4.7k
4.7k
C309
R302
2.2/50
27K
R311
27K
R312
27K
1K
D343
1SS355-X
1SS355-X
D323
D781
4.7K
390p
390p
C303
C304
390p
390p
C318
2.2/50
C313
C314
2.2/50
C319
R343
2.2k
R323
2.2k
2SD1048/6-7/-X
Q781
C781
MTZJ11C-T2
100/16
DTA114EKA-X
DTA114EKA-X
C782
220/10
IC901
HA13164A
R910
CRS03-W
D982
C982
100/16
C906
10/16
C328
C321
0.22
C322
0.22
100
100
R341
R321
Q341
2SD1048/6-7/-X
Q321
Q782
10k
R902
CRS03-W
C981
D981
0.1
1K
C301
R305
0.1
4.7/25
4.7/25
C305
C307
47k
R881
Q881
C881
DTC114EKA-X
2.2
C910
22/16
C302
C327
0.1
C306
R882
4.7K
C882
0.1
22/16
0.047
C904
2200/16
C903
1N5401-F64
D901
L901
QQR0703-001
10/16
0.047
C901
C902
FRONT SIGNAL
REAR SIGNAL
TUNERSIGNAL
TAPE SIGNAL
CD CHANGER SIGNAL
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
C329
0.10.1
C323C324
150P
C911
0.1
C325C326
0.1
47
R901
QMFZ047-150-T
QAM0160-001
AB C D E F G
2-3
Page 5
Mecha control section
KS-FX925RKS-FX925R
5
680
CN403
QGF1219F1-10S
4
3
CN402
VMP3501-001
2
R401
100P
C401
100K
R402
100P
C402
100K
R403
100P
C403
100K
R404
100P
C404
100K
R405
C409
100P
100P
22/16
100P
100P
C408
C407
C406
C405
180 180
R406 R407
0.015
C411
0.015
C410
R408
R409
12K
24K
R410
R411
24K
12K
33K
VR402
33K
VR401
0.10.1
22/16
C414
18K
C413C412
R413
IC401
CXA2560Q
100
R412
0.1
C417
0.1
C416
220P
C418
R414
3.9K
0.47/50
C419
R417
10K
Q403
2SB1322/RS/-T
DSK10C-T1
D402
R418
15k
22K
R415
0.01
C421
R422
3.3K
Q402
DTC114EKA-X
R416
1.5M
0.1
C422
47K
R423
C415
0.01
IC402
LB1641
D401
MA3047/H/-X
3.3K
R424
10/16
C423
C425
0.01
0.1
C424
33
R425
CN401
QGB1214K1-18S
1
TAPE SIGNAL
2-4
HAB C DE FG
Page 6
KS-FX925R
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
RPM7138-V4
S43
S44
S18
S19
IC602
ACC5V
R660
10k
REMOCON
10V
S42
S20
S21
D659
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
R661
47
JOG-0
C606
4.7/6.3
UDZS5.6B-X
JOG-1
LCDCE
LCDDA
LCDCL
KEY2
KEY1
KEY0
R662
R663
R664
R631
0
CN601
QNZ0006-001
3.3k
3.3k
3.3k
IC601
LC75873NW
LCD1
QLD0217-001
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
S608
820820
S601
S602S603S604S605
D601
R606R607
8201.2k3.9k
R612R613R614
8201.2k1.8k
S615S616S617
S607
S614
R611
S606
820
S613
820
R621
SML-310LT/MN/-X
820
R620
820
910
910
820
R622
D602
D603
820
R624
R623
R625
R626
D606
510
510
510
510
820
R627
R628
R629
R630
R631
D612
D609
D613
D610
D607
D608
D611
D614
910
910
820
820
820
910
910
R633
R634
R632
D615
D616
820
R635
D617
R639
R636
R637
R638
D619
D618
D620
1.2k1.8k
R610
R609 R608 R605
2.7k
1.8k 820
S612
S609S610S611
2
S68
EN601
QSW0976-001
R650
R643
C608 C609
0.01 0.01
430
D643
NSPW310BS/B/
0
Q641
2SB815/7/-X
Q642
0
R680
820
R640
430
430
R642
R641
D642
D604
D605
D641
NSPW310BS/B/
NSPW310BS/B/
JOG0
JOG1
R652
47k
R651
47k
KEY1
KEY2
KEY0
10V
ACC5V
R644
470
1k
R646
UN2211-X
LCDCE
LCDCL
LCDDA
47k
R645
R653
R654
1k
220
D651
UDZS5.1B-X
330k
1SS355-X
1SS355-X
1SS355-X
D655
D654
D653
1SS355-X
1SS355-X
D656
D657
R656
1SS355-X
1SS355-X
R655
390k
D658
D652
C601
4.7/6.3
S62
S63
S64
S65
S66
S67
COM1
COM2
COM3
C602
0.01
220P
C603
R659R658R657
10k10k
10k
C605
C604
0.22
0.22
S1
S60
S61
S3
S2
S58
S59
S4S5S6S7S8S9S10
S52
S53
S54
S55
S56
S57
S46
S47
S48
S49
S50
S51
S11
S12
S13
S14
S15
S16
1
AB C D E F G
2-5
Page 7
Printed circuit boards
KS-FX925RKS-FX925R
Main board (Forward side)
Main board (Reverse side)
5
R161
R808
R162
R805
C708
R164
C707
IC901
R717
R750
C163
R802
R715
R807
C801
C713
R801
R730
1
2
1
C904
C905
R902
R903
R904
Q901
B904
C907
R163
C164
R167
R168
16
IC161
17
C167
R170
R169
D161
1
D162
Q241
R241
C168
R729
R246
C705
R245
C706
X701
R752
B955
C704
D710
R744
B816
R905
R906
C245
R701
R907
C908
R739
D704
R728
C241
D242
D705
C242
R718
D901
C172
C183
Q902
R719
R901
C173
R165
C169
R702
L901
C982
C901
Q891
C174
C176
C178
B806
C181
B930
1
32
R247
C244
R727
R726
R720
D706
R703
D241
D707
C180
D891
D708
C243
C184
R166
R724
D982
C182
R243
D709
R171
R725
R244
R242
D892
R881
C902
C882
C170
R312
C881
R891
C891
C171
9
Q881
R306
C179
R723
R892
C175
5
R302
C309
C319
C177
R782
13
R303
Q904
R704
CP901
1
C303
Q903
D701
R309
R308
B903
D783
Q781
R705
10
R781
Q976
1
C910
D903
C318
CJ601
R307
R977
D702
14
R314
C314
2
C981
R313
C308
R301
C781
Q782
D703
R882
C782
D782
Q977
18
4
8
R304
R731
16
C329
C326
C709
C909
R842
BZ841
GEB10039A
17
19
C327
C306
24
25
C323
C324
C325
2
1
C305
IC301
C301
C307
R978
L903
L902
C711
S701
3
7
D981
C911
15
12
11
R311
C304
C328
C302
R909
R305
D902
R908
R976
D781
Q784
C903
R841
R709
R706
C841
Q841
C905
IC901
D707
R901
B203
C183
D706
C242
C241
Q902
D705
L901
B502
B722
B601
C907
C704
D710
C164
C167
C168
X701
B505
C908
B204
C245
D704
CP401
B503
B404
B403
B207
C163
B402
D712
B103
C319
CJ601
D901
B4
B101
C982
C901
C882
B711
B724
B702
C181
C182
C184
C180
D708
D709
C327
4
3
2
S701
B3
B721
B1
C329
B723
IC301
B712
B8
C328
B205
C301
C307
L903
L902
C909
C903
BZ841
C302
B202
B206
D781
B701
C841
B5
CP901
B2
C309
B501
C318
B201
B301
C308
B504
B401
C781
C782
D701
D702
D703
GEB10039A
C166
J801
C906
B602
B209
B208
C161
C703
X71
J321
B303
J1
S1A
B210
B6
C165
D1
B102
C42
TU1
C9
C43
C6
C5
C162
B302
C73
B211
C7
B7
C77
C55
D711
S703
L1
D5
D6
S702
C1
T1A
J1
L1
TU1
D5
B901
C33
D6
C3
10
C2
C8
C82
R11
C51
C81
R54
C52
C53
R56
Q51
R53
R55
R57
C54
Q52
R58
R60
R59
C710
R722
S702
R341
R342
1
Q3
15
20
R721
RL
R351
Q351
Q341
R352
R322
R343
R353
D343
C31
R33
C32
R32
R31
R34
Q32
Q31
B902
D3
R4
R5
D2
C10
R12
B807
C9
C43
R83
C6
B911
R81
C84
R82
C5
B803
R84
C71
Q9
D4
R8
Q53
C7
Q4
C55
S703
D711
FL
R321
Q321
Q331
R323
D353
C1
R43
D1
D323
R1
B801
R42
C42
C41
Q42
R41
Q41
R44
D7
Q7
R9
C83
C165
C162
C701
Q6
R10
Q10
C4
R740
R711
R741
Q5
C73
Q8
C77
R751
R810
R716
R732
R738
R809
R749
R710
R713
R747
3
2
1
8
7
J321
R331R332
R333
D333
B810
Q1
R6
C702
C72
R733
R73
C74
C75
4
6
5
J801
2
C906
1
CP401
B802
B920
R2
R3
Q2
C703
Q11
R746
R734
X71
C166
C161
C714
R712
B805
41
R743
R735
R745
R737
R72
C76
R71
1
16
IC71
R742
IC801
R736
R910
L-CH
TP01
Q701
R748
TP02
R-CH
R172
R707
R708
R173
21
IC701
61
R803
R804
D712
R714
1
14
R806
Front board (Forward side)
S614
S617
D602
D603
D605
R611
R612
R614
D601
1
D604
S615
S613
D606
S606
R605
IC602
S616
R613
D608
LCD1
D641
D642
R602
D615
D643
D616 D617
S602
D607
EN601
D609
S607
R606
D610
S608
R607
D611
S609
R608
D612
S610
R609
D613
S611
R610
S601
R601
D614
S612
D618
D620
R637
R635
R636
R638
S605
R604
D619
R603
S604
J601
S603
2-6
Front board (Reverse side)
R631
R633
D658
D652
R632
D641
R634
D657
D642
R655
D643
J601
R668
R669
R643
R642
R667
R666
C602
C603
R641
R680
R658
C601
R656
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
R640
R639
HAB C DE FG
Page 8
Mecha control board
R411
1
T11
R424
IC402
FSMW1093A
R426
C423
D401
VR402
B409
R425
C413
B407
C425
Q401
C424
R410
B406
D402
R401
R416
C419
C422
C414
B408
C421
B403
C416
R420
Q403
B413
R417
R415
B410
C415
1
B411
C418
KS-FX925R
R412
11
R414
R418
21
R413
C417
B404
2
CJ403
C412
31
B412
1
IC401
C411
B405
B402
R423
VR401
C410
CJ401
R408
B401
C409
C405
R407
C406
C408
C402
R406
C407
R403
1
R405
C403
R402
1
C404
R404
R422
C401
2
Q402
2-7
Page 9
KS-FX925R
VICTOR COMPANY OF JAPAN, LIMITED
MOBILE ELECTRONICS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49742SCH)
200205
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