Block diagram
5
L3
BPF
D8 L4
RF IF DET
24
IC1
1
3
6
RV-B550BU
11
12
7
KEY SWITCH
4
3
PICKUP
FOCUS
TRACKING
MOTOR
SPINDLE
FEED
COIL
CN601
D1
D2
35
IC601
36
RF & SERVO AMP
IC602
DRIVER
IC 2
PLL
CF1
10
T2
DIGITAL
SERVO
IC603
44
Tuner circuit
DIGITAL
SIGNAL
PROCESSOR
73
CD circuit
CN403
CN406
FUNCTION
2
IC401
3
1
IC901
SYSTEM
MICON.
LCD DISPLAY
Micon.circuit
CN407
CN408
E.VOLUME
CN631
2
HIGH CONTROL AMP.
CN632
IC501
IC831
J6301
BASS BOOST POWER AMP.
IC801
9
5
7
7
IC631
15
H.PHONE
Q6101
SPEAKER
CN633
Mute
NF
Q6301
REGULATOR
Amplifier circuit
POWER SUPPLY
2
REC/PB SWITCH
IC31
REC/PB AMP
16
IC32
12
14
13
CN304
L31
Q301
CN33
Q303
Cassette circuit
1
KEY SWITCH
ABCD E F G
2-1
RV-B550BU
C9
12P
100K
47K
10K
Standard schematic diagrams
Tuner section
C22
SVC344
R20
C74
220P
0.047
1K
QFP31HJ-431
C32
100K
R17
R46
10K
C23
Q6
C26
0.0047
100K
0.01
Q3
4.7P
QQR0775-001
QAX0403-001
R13
C21
R12
4.7K
R16
4.7K
D10
SVC344
C25
R21
10k
0.022
D8
5
L3
QQR0770-001
6.8P
C75
BP1
QQR0768-001
L13
QQR0874-001
C17
20P
4
D6
0.001
R71
L2
C52
100K
R7
QQR0769-001
D1 D2
0.001
6.8P
C3
C64
12P
C62
12P
0.001
R1
100K
C13
X1
L7
QAX0402-001
C63
R72
47K 4.7K
C56
47K
R2
0.001
C60
0.022
R9
1K
220
LC72136N
C6
100/10
C61
0.01
C7
R3
4.7
20P
12P
C9
L1
QQR0844-001
R54
2.2K
R56
C69
0.0022
R55
2.2K
IC2
1K
1K
1K
R60
R59
R61
C77
C16
0.01
3.3K
C70
2.2/50
R52
4.7K
0.001
C71
3.3/50
R57
1K
0.001
C65
Q16
L12
QQR0838-001
TP1
D5
3
TP2
2
Q4
R66
10k
Q5
R15
2.2K
2.2K
0.001
R44
C37
1K
R45
QAT7002-200Z
TC2
TC3
QAT7001-100Z
1K
R51
QQR0723-001
L6
C31
TA2008AN
CF1
L4
1K
R18
0.047
330P
C51
47K
10K
22K
R32
0.01
C44
10/16
QAX0404-001Z
R64
0.1/50
1K
0.47/50
C45
C35
R30
CF4
QAX0409-001
C47
0.012
0.01
100K
100/10
0.012
C33
D12
DSK10C
0.1/50
C49
C48
R35
39K
39K
R34
C50
0.1/50
CN1
QGF1205C1-09
GND
Rch
Lch
6V
MPX
DATA
CLOCK
PERIOD
SHEET 3/5
C43
C41
CF3
Q17
0.01
56
R28
C78
R37
5.6P
T2
QQR0719-001
5.1K
R48
R47
1K
470
C42
C36
4.7/50
C76
0.001
IC1
R33
100
R41
2.2K
2.2K
1
R40
FM/TUNER signal
AM signal
2-2
SHEET 1/5
HABC DEFG
RV-B550B U
C5203
R3793
Q3791
C5206
D6301
R3792
C3791
D3791
R3794
R3791
D8301
1K
100
10K
2SC2785/EF/-T
22K
0.12
0.1
100K
1/50
0.047
0.01
MTZJ6.2A-T2
68K
10K
Main amplifier section
VOL
TRE
R5303
0.047
C5306
BASS
100K
100K
R8201
2.2/50
R8303
C5304
R8102
22K
R5301
1/50
R8321
R8208
R8202
1.5K
R8209
R8108
0.68
5.6K
R8109
C8105
C8304
100
C8201
C8101
0.12
Q8203
C8205
Q8103
470K
R8117
4.7/50
IC801
BA15218N
C8103
22/25
R8203
C8102
R8105
820
1.8K
R8103
R8301
1.5K
R8217
C8322
47/16
R8213
10K
Q8201 R8111
R8211
100K
2SC2785/FE/-T
R8327
R8306
47K
C8301
C8202
R6207
R6107
5.6K
Q6301
DTA114ESA-T
C6321
10/16
2SC2001/LK/-T
Q6201
R6208
R6108
Q6101
C6201
C6202
220/16
C6301
150P
C8203
R8204
R8104
180K
R8214
R8205
820
R8114
47/16
D8303D8302
4.7K
R8113
Q8101
Q8102
MTZJ4.3B-T2
R8115
D8304
D8358
C8303
150K
R8216
R8116
Q8202
R8207
15K
0.1/50
R8302
R8107
R8215
470K
100K
33K
0.0056
C5106
C5309
0.47/50
C5303
C5103
R5305
R8101
R5302
C5302
2.2/50
150k
R5308
4.7/50
2.7K
C5307
100
C5305
10/16
R8304
22K
Q8301
DTC144TS
IC831
BA15218N
R5202
C8206
R5201
R8370
C5201
2.7M
Q5101
2SK301/R/-T
C5101
0.0022
C8106
SVB1
SVB2
5
Q8352
2SA1037AK/RS/-X
470K
R8355
Q8351
DTC124TS
100K
R8352
4
R8354
ACSLED
120K
R8356
Q8353
R8357
100
100
Q8354
D8355
D8351
0.0027
C8360
R8351
ACSCNT
C8361
R8363
R8365
47K
100
D8352
C8351
68P
R8360
8.2K
R8359
C8362
D8353
D8354
0.1
4.7M
R8358
C8356
100/16
0.01
C8364
R8366
220K
220P
C8352
1K
R8362
8.2K
0.047
150
R8367
C8359
10/50
C8358
R8368
R8372
22/50
C8354
R8361
C8353
100P
C8363
33P
47K
47K
R8364
0.039
C8355
220P
47K
10K
R8369
47K
R8373
C8357
100P
10K
C5301
C5202
R5204
Q5201
R5306R5307
4.7M4.7M
R5104
220K
C5102
R5101
15K
4.7/50
15P
R5102
12K
D8356
C8305
10/16
D8357
15K
R8305
10/50
Q8302
DTA114ES
IC501
BH3852S
C5204
C5205
C5105
0.056
C5104
0.056
SHEET 3/5
C6101
4.7/50
IC631
C6302
C6102
LA4705NA
33/25
100/25
CN633
QGB2501K1-04
120
J6301
QNS0072-001
39K
R6106
R6205
2.2/50
C6303
10K
R6301
2.2/50
C6304
D6303
C6309
R6303
15K
IC310
BA44W12ST-V5/Z1
R6105
C6307
1/50
D6302
R6206
39K
2.2
R6101
0.1
C6306
1/50
C6104
15K
R6302
C6308
0.047
C6314
2.2
R6102
R6201
R6202
6800/25
47/25
C6103
C6204
C6203
0.1
C6315
C6305
470
R6103
R6104
R6204
R6203
R3202
D6304
D3194
MTZJ7.5A-T2
1.5K
R3201
1.5K
CN631
QGF1205F1-13
3
SHEET 3/5
VOL
BASS
TRE
ACSCNT
ACSLED
SVB1
SVB2
CN632
QGF1205F!-14
R3204
R3203
2.2K
Q3198
DTC114TSA-T
10K
D3195
2
IC390
TA78DL06S
R3901
C3901
D3901
100/10
MTZJ8.2B-T2
1
4.7
C3902
R6325
15K
D3302
C1903
0.068
C3192
R3304
R3305
C1901
0.068
6.8K
3.9K
100/25
R3194
D1901
KBU603G-A3
F1902
D3192
2SC2785/FE/-T
C3191
10K
D3301
MTZJ3.0B-T2
Q3194
4.7/50
R3193
C1902
0.068
CN192
Q3192
2SB1565/EF/
100K
R3192
C1904
0.068
QGA7901C1-04
QGA3901C1-02
R3302R3303
CN193
390
6.8K3.9K
FW901
QSW0555-001
FW902
100/16
C3304
0.33
C3303
Q3193
2SA1175/HFE
S1901
R3191
C3302
390
100/16
F1901
C3301
R1901
R3195
R3196
R3197
1.2
1.2
1.2
0.01
10K
R3301
1K
Q3191
QGA2501C1-05
J1901
QNC0042-001
W1
DTA114TSA-T
CN191
F1904
FW601
D1902
1N5401-TM
J1902
QNA0016-001
MAIN signal
T1901
QQT0247-004
ABCD E F G
SHEET 2/5
2-3
System microprocessor section
R2514
D2509
D2508
S2513
R2515
R2503
D2504
R2518
R2502
R2516
C2501
Q2505
C2502
Q2504
CN901
D2506
CN251
FW914
D2505
R2520
Q2506
CN904FW251
R9002
FW261
CN902
CN252
L4354
R2522
R2521
D2507
390
47K
390
SLR-342MG-T15
22K
390
47K
22/10
2SC2412K/R/-X
47/16
*
UN2210-X
1K
1K
1K
10K
*
QGF1205F1-10
SLR-342VR-T15
QGF1205C1-10
390
DTC124TKA-X
QGA2501F2-02
0.01
QGF1205F1-08
QGF1205C1-08
QQR0779-001Z
1K
1K
1K
LED1
SCT1
ACS
RV-B550BU
R7364
10K
C7358
4.7/50
LIVE
S2502
5
QSW0622-001Z
S2511
Q2501
DTA124XKA-X
D2502
SLR-342VR-T15
R2501
270
S2514
R2523
S2515
4
3
R2511
S2503
390
R2510
S2504
R2509
270220
S2505
R2508R2506
S2506
150 560
R2507
S2507
120
S2508
100
R2505
S2509
100
R2504
S2510
3.3K
2
1
R2512
R2513
GP1U281X
1K
1.8K
IC903
S2512
S2501
DTC144TKA-X
Q9011
CN403
QGF1205C1-09
Q9010
R9079
R9080
R9086
C9035
C9036
C9037
C9038
C9019
C9020
C9034
C9013
C9015
C9031
C9021
C9016
C9017
R9020
100K
PERIODE
R9083
Q9013
DTC144TKA-X
47K
150P
150P
150P
150P
150P
150P
0.01
10/50
24K
10/50
24K
10/50
150P
150P
150P
2SA1037AK/RS/-X
39
R3361
Q3361
2SA1037AK/RS/-X
MPX
SHEET 1/5
Q9006
MTZJ3.9B-T2
D3362
2SC2412K/R/-X
D3363 D3361
680P
C4151
100/10
C3361
R4155
R3363
Q3362
18K
C4251
DI901
DI901
QLD0024-002
R9025
10K
10K
R9092
2.2K
R9003
2.2K
R9004
15K
R9005
4.7K
R9006
2.2K
R9007
1K
R9029
1K
R9009
10K
R9010
2.2K
R9011
2.2K
R9012
2.2K
R9013
1K
R9014
R9021
1K
R9022
6.8K
R9023
10K
10K
R9024
R9089
10K
R9026
1K
R9027
10K
R9028
1K
X9002
QAX0410-001Z
X9001
680
C9006
22P
22P
C9001
C9002
QAX0401-001
FTU
4.7K
C3362
4.7/25
R3362
1K
R4255
8.2K
R9018
Q9002
2SC2714/O/-X 2SC2714/O/-X
Q4301
2SD601A/R/X
R4249
Q4201
Q4101
2SD2144/VW
R4142
R4242
27K
R4244
R4144
R4241
20K
68K
R4141
J4301
QNS0047-001
TADOOR
STTA
BOUT1
BOUT2
BACKLIGHT
SCT1
XRST
POUT
BCTL
PBMUTE
SMUTE
FAUX
FTU
FCD
VOL
BASS
TRE
AC/DC
PHOTO
BUP
STAT
24P
36P
C9008
R4149
1K
COM3
2.2K
2.2K
R9087
R9088
NC
SEG19
MDATA
MCLK
MLD
1K1K10K
10K
1K
R9030
R9031
R9035
R9033
C9005
36P
C9007
R9017
FAUX
R4301
150P
C4343
COM2
RESET
R9032
24P
8.2K
2.2K
SEG18
COM1
100K
R9015
D4302
D4301
SEG17
Q9001
C4142
COM0
SEG16
220K
R9016
C4143
SEG0
SEG15
MN171603BJ
R9001
10P
4.7/25
SEG1
680
IC901
R4143
SEG14
SEG2
SEG13
C9003
220K
R4342
SEG3
150P
SEG4
SEG12
10K
R9095
10K
SEG11
IC401
C4341
SEG5
1K
R9036
SQCK
SEG6
SEG10
R9037
SEG7
SEG9
PERIODE
SUBQ
10K
1K
R9038
BA15218F-W
R4341
10K
47/16
SEG8
SEG8
10K
R9039
SEG7
MPX
C4342
SEG9
2.2K
R9044
SCK
SEG10
SEG6
C9024
SEG11
SEG12
SEG13
SEG4
SEG5
SEG3
CDREGSAFETY
REST/DOOR
REGSAFETY
REM
6.8K
10K
10K
R9047
R9046
R9048
100P
SO
R4243
C4242
C4243
100/16
QGF1205F1-10
SEG2
BATT
KEY1
KEY0
PIN
SEG1
SEG0
COM0
COM1
COM2
COM3
SEG14
R9094
R4343
CN405
47K
SEG15
R9019
100
SEG16
SEG17
100K
C4144
R4159
SEG18
R4160
SEG19
150P
C9023
4.7/25
820
R9084
R9057
R9056
R9055
R9054
R9053
R9052
R9051
R9050
R9049
R9098
C9039
C9040
150P
150P
C9026
C9025
C4244
R4259
QQL01BK-100Z
R4260
L4355
SHEET 5/5
R4158
R4161
68P
C9027
R4245
R4145
120K
0.01
1000p
20K
27K
R9093
39K
R9062R9063
R9061
100K
100K100K
R9082
1K
R9081
9.1K
QQL01BK-100Z
R4258
R4261
100K
R9041
Q4102
L9001
C9022
0.01
C9009
IC902
IC-PST9131-T
10K
R9074
C9011
PBMUTE
C4245
C4145
10/35
R4250
1K
R4150
C4344
Q4202
2SD596/4/-X
R9045
R9096
R9059
R9102
R9085
R9099
L9002
QQL01BK-100Z
100/10
C9018
K9001
QQR0779-001Z
R9073
0.01
C9012
4.7/25
STTA
TDATA
33K
1K
1K
9.1K
2.2K
22/50
R9065
56K
SCK
2.2K
10K
2.2K
2.2k
2.2K
2.2K
2.2K
2.2K
2.2K
10K
10K
SHEET 5/5
47K
R9101
R7351
100
IC751
BA15218F-W
22K
R7352
R7356
22/16
560K
C7351
R3571
4.7K
R3573
C3571
47/16
JACK
R9068
100K
Q9003
2SD601A/R/-X
BATT
D9001
R9071
22K
PHOTO
470P
C9004
CN406
QGF1205F1-09
KEY1
C7352
4.7K
R9066
D9006
R7353
22/16
Q3571
2SB624/4/-X
4.7K
R3572
47K
R9067
R9072
MA700A-T2
22K
33K
33K
C7353
39P
R7355
2.2K
Q3572
2SC2412K/R/-X
10K
R7354
D9002
Q7353
2SA1037AK/RS/-X
C7354
3.3/50
Q7354
DTC143TKA-X
C7355
0.47/50
R7362
1K
R7363
C7357
3.3/50
MTZJ5.1C-T2
FW401
QGA2501C1-02
CN907
L4351
QQR0779-001Z
FW402
FW256
VR731
QVQ0112-B24
QLL0043-002
R9097
D7351
R9069
R9070
R9075
R9076
R9077
R9078
PL1
68K
L4353
CD signal
TUNER signal
MAIN signal
R7366
Q7352
2SC2412K/R/-X
S2521
QSW0122-001
1K
1K
1K
1K
4.7K
22K
L4352
QQL01BK-100Z
R4151
L4356
QQR0779-001Z
100K
R7359
Q7351
2SC2412K/R/-X
QQR0779-001Z
82K
R4251
10K
47K
R7365
D7352
J7351
C7356
220K
R7357
33/16
SUBQ
SQCK
STAT
XRST
MCLK
MDATA
MLD
REST
CDSAFETY
DG
MG
6V
CDL
CDR
CN407
QGF1205F1-13
QNS0043-001
100K
SHEET 4/5
D7353
R4153
R4253
R7358
R7360
R7361
10K
SHEET 2/5
FCD
CDREGSAFETY
CN408
QGF1205F1-14
SMUTE
REGSAFETY
POUT
VOL
BASS
TRE
ACSCNT
ACSLED
SVB1
SVB2
AC/DC
LIVE
SHEET 2/5
TAPE P.B. signal
TAPE REC. signal
SHEET 3/5
2-4
HABC DEFG
CD servo section
RV-B550B U
130K
R605
91K
R606
R609
R612
110K
27K
0.1
C614
C629
C628
R607
1/50
C608
C620
47P
ARF
100P
0.027
C609
C610
0.047
100/10
R641
R642
270P
C619
R616
F
E
0.022
C605
BA6897FP
IC602
10/25
33
R621
LDON
R622
0.022
C615
C616
12K
R601
33
33
R623
T+
T-
C606
C607
0.001
B+D
A+C
47/10
A+C
B+D
F
C622R613
E
R615
91
F+
T+
TF-
FM+
SMSM+
FM-
12
120
Q601
2SA952/LK/
AN8806SB
IC601
R614
10
C631
470/10
0.001
5
PN3Q4K-( SL)
CN601
EMV7144-015
4
1.5
2k
QGF1008F1-15
3
QJK004-060601
CN602
2
0.0022
C611
R610
C618
BDO
56K
12K
0.01
C612
0.0022 150K
R643
R644
10K
0.022
FM-
OFT
1.2M
R603
C617
RFDET
FM+
C623
0.1
C604
C613
330P
TP601
8.2K
22K
KICK
C621
100/10
TRD
TVD
TRV
820P
TBAL
FBAL
RFENV
TRCRS
VDET
FE
TE
OFT
RFDET
BDO
LDON
ARF
FBAL
TBAL
FE
TE
RFENV
VDET
TRCRS
TRV
TVD
ECM
ECS
KICK
TRD
FOD
TP602
C661
470P
C653
0.022
K699
QQR0779-001Z
C662
0.022
R651
XRST
1K
1.5M
R662
STAT
R652
100K0.022
R661C663
SUBQ
1K
R653
120K1K470
R663
0.022
C664
SQCK
1K
R654
C694
150P
MN35510
R664
0.1
C665
IC603
C691
150P
C692
150P
C693
150P
MLD
MDATA
MCLK
470
R655
C651
C652
C655
0.047
C675
0.001
C674
0.022
C673
220/10
22
D661
R666
1SS254
470
R659
12P
X651
15P
VCX5016-934V
0.0022
C671
0.0022
C672
10K
R671
10K
R672
SUBQ
SQCK
STAT
XRST
MCLK
MDATA
MLD
REST
SHEET 3/5
R631
27K
330
R633
R632
100
C632
100/10
SM+
SM-
R645
R646
R647
22K
1.8K
5.6K
ECM
ECS
FOD
SHEET 3/5
CD signal
F-
F+
Q631
2SA952/LK/
1
SHEET 4/5
ABCD E F G
2-5
RV-B550BU
0
220/6.3
1.5
10
Cassette amplifier section
SG-10SF3
IC1
FA1A4ZX
100K
560P
4.7/25
0.033
FA1A4ZX
1.5K
Q306
0.01
0.0022
R105
C105
C104
R106
R103
2.4K2.4K
R203
Q201
12K
R332
3.3K
R102
C106
10/16
R202
1.8K
10/16
C206
3.3K
R206
100K
560P
0.0022
C207
R205
C205
L301
QQR0620-001
0.01
C316
22
C319
820P
C101
220P
C102
220P
C202
820P
C201
QVPA603-503AZ
QVPA603-503AZ
820P
Q307
2SC1623( 6) X
R101
C103
Q101
FA1A4ZX 1.8K
C204
0.033
C203
220/6.3
22
R201
VR31
VR32
R319
2SC1623( 6) X
5
IC31
BA3126N
R301
220
C301
C325
C326
0.0039
2SC1623( 6) X
Q311
2SC1623( 6) X
100/10
R207
12K
R107
12K
R121
1K
R221
1K
1.5K
R325
560P
Q310
C322
4
VGH0425-544
VMC0163-R06
CN31
3
R327
470K
R216
0.0015
Q309
2SC1623( 6) X
1K
R116
C110
0.0068
C210
0.0068
1K
C121
330P
C221
330P
1.5K
R322
Q308
2SC1623( 6) X
2
12K
R334
C324
0.01
47K
R326
C321
12K
0.01
R333
C318
22/16
22/16
C107
C109
C305
C304
C306
47/16
C108
4.7/25
220/6.3
0.039
4.7/25
C208
C303
C302
4.7/25
39K
C209
R303
L303
VQP0033-100Z
C311
0.0068
100/10
C313
C314C315
68k
R351
9.1K
R352
C351
10/16
IC32
AN7317
R109
1.2K
R108
5.6K
R104
1.2K
R304
100
1.2K
R204
5.6K
R208
R209
1.2K
R316
Q303
R310
R313
3.3
56
R311
2SC2001( K)
56
Q305
2SC2001( L,K)
1.5
Q102
2.7K
4.7K
R110
4.7K
R113
R114
C113
C112
0.068
0.0022
C111
R112
2.2K
0.0012
R111
33K
R211
33K
C211
R212
2.2K
0.0012
C212
C213
R210
4.7K
C309
22K
R317
B199
0.0022
0.0056
R213
4.7K
R214
Q202
FA1A4ZX
MA152WA-TX
Q304
2SC2001( L,K)
0.068
2.7K
D301
Q302
2SC2001( K)
C308
R315
Q323
2SC1623( 6) X
10
0.0056
C307
0.01
FN1L4MX
Q301
Q375
2SB562( C)
R305
2.2K
C310
0.022
22K
R314
R335
1.5K
D309
MA704AX
FA1L4MX
Q321
R306
2.2K
C375
100/10
Q376
2SC1623( 6) X
C376
0.01
D375
MA3051( M) TX
150
R376
R375
4.7K
VR37
QVPA603-103AZM
Q371
SW4
VWS304-06A13K
R371
2SA952( L,K)
R372
1K
Q372
FA1F4MX
IC33
R339
2.2K
R336
4.7K
SW5
FW31
12K
BU4094BCF
QSEC001-E03
SW6
SW1
SW2
MSI-5U2LWA
C374
100/10
R338
3.9K
R337
3.3K
C371
4.7/25
390
R340
47/16
C331
D1
1SR139-100T
R341
20K
R342
CN1
CN32
QGB2011M1-10
12K
R343
VGP2401-00A
EMV7159-010
18K
VMC0163-R10
CN34
SHEET 3/5
VMC0163-R09
CN33
SHEET 3/5
1
TAPE P.B. signal
SHEET 5/5
TAPE REC. signal
2-6
HABC DEFG
RV-B550B U
Printed circuit boards
Main board
Main board
5
Power supply board
4
3
Tuner board
2
Power Trans. board
1
ABCD E F G
2-7
SYSTEM CONTROL BOARD Block No. 0 1
RV-B550BU
Lamp board
CD Door switch board
Key switch board
5
System control board
4
3
2
LED board (Left side)
LED board (Right side)
1
2-8
HABC DEFG
RV-B550BU
SW1 SW2 SW3
SW4 SW5
P1
D1
IC1
CN1
SW6
T01
Head amplifier & mechanism board
Cassette switch board
5
4
3
2
1
ABC
2-9
RV-B550B U
-MEMO-
2-10
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