Sony CX-LDB30 / CX-LDB50 / XR-DB30 / XR-DB50 Service Manual ▷ View online
25
25
CX-LDB30/LDB50
CX-LDB30/LDB50
7-1. BLOCK DIAGRAM — BD SECTION —
MIACK
8
PO11/BUCK/AD14
36
MILP
5
RESET
2
MICS
4
MIDIO
6
MICK
7
MP3 DECODER
IC301
A/D
CONVERTER
CH2OUTF
CH2OUTR
23
24
22
4
5
6
7
17
18
16
15
RFACI
ASYO
ASYI
FILTER
FILO
PCO
CLTV
FILI
DIGITAL PLL
ASYMMETRY
CORRECTOR
EFM
DEMODULATOR
CD DSP
IC101 (1/2)
MDP
DIGITAL
CLV
PROCESSOR
32K
RAM
ERROR
CORRECTOR
INTERNAL BUS
SQCK
SQSO
EXCK
AOUT1
C4M
XTSL
XTAO
XTAI
AOUT2
R-CH
D/A
DIGITAL
INTERFACE
D/A
CONVERTER
SELECTOR
CLOCK
GENERATOR
SUBCODE
PROCESSOR
SCOR
WFCK
XUGF
GFS
EMPH
SENS
DATA
CLOCK
XLAT
SBSO
O-SENS
I-DATA
I-XLT
TEI
FEI
FOCUS/
TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
PWM GENERATOR
SFDR
CH3FIN
CH4IN
CH3RIN
CH3OUTF
CH3OUTR
CH1FIN
CH1RIN
CH2FIN
CH2RIN
20
MUTE
SRDR
TFDR
TRDR
FFDR
FRDR
SSTP
COUT
MIRR,
DFCT, FOK
DETECTOR
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
CPU INTERFACE
SCLK
TO CPU INTERFACE
FOK
MIRR
DFCT
2
OPIN+
CH4OUTF
CH4OUTR
27
OPOUT
M101
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
CH1OUTF
CH1OUTR
COIL
DRIVE
M
M
M102
(SLED)
MOTOR/COIL DRIVE
IC251
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
CD DSP
IC101 (2/2)
• Signal Path
: CD PLAY
14
13
11
12
O-SCOR
A
MAIN
SECTION
CD
13
11
12
9
10
14
119
108
21 23
3
1
2
7
TO SERVO AUTO
SEQUENCER
42
51 53
XPCK
112
50 52
45
46
6
XRST
100
O-X-RST
60
96 97
81
78
117
93
77
86
98 99
115
107
102 105 104
110 111 113 68
35
I-CLK
37 36
LRCK
BCK
PCMD
LRCKIA
SDI0
63 66 65
16
BCKIA
15
SFSY/LRCKIB
19
SBSY/BCKIB
18
14
LRCKI
BCKI
PCMDI
SDO0
62 60 61
11
56 19
26
27
28
29
24
22
20
19
37
36
E
B
A
D +3.3V
F
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR
AMP
TRACKING
ERROR AMP
RFACO
FEO
TEO
E
F
AUTOMATIC
POWER
CONTROL
Q10
APC LD
AMP
LD
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-215CFP)
PD
I-V AMP
D
C
EQ_
IN
41
35
34
EQ
AC_
SUM
RFAC
VCA
X171
16.9344MHz
SYSTEM CONTROLLER
IC901 (1/2)
S101
(LIMIT)
I-MP3DAT 6
O-MP3DAT 5
O-MP3CLK 7
I-MI-CS 47
I-MP3-ACK 32
I-MP3-REQ 33
O-MILT 48
MP3-RST 45
I-XTACN 57
STANDBY
3
I-MP3-STBY 49
• R-ch is omitted due to same as L-ch
XTACN
95
EMPH1
69
VDDT
42
VDDT
9
VDDX 57
VDDX 40
VDD 21
VDDP 1
5
1
LD OUT
LD IN
I-CDMSW2
I-CDMSW3
I-CDMSW1
82
83
OUT1
FIN
OUT2
RIN
IC701 LOADING MOTOR DRIVE
IC303
+1.5V REG
M701
(LOADING)
MP3
3.3V
3.3V
M
7
9
4
2
S702 (CHUKING)
S703 (TRIGGER)
S701 (DISC IN/OUT)
85
86
84
(ON : When disc insert)
S701
S702
S703
(ON : Play position)
(ON : Play position)
26
26
CX-LDB30/LDB50
CX-LDB30/LDB50
7-2. BLOCK DIAGRAM — MAIN SECTION —
: TUNER
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
: AUX
: PB (TAPE)
: REC (TAPE)
BIAS
OSC
+VL
ERASE
HEAD
REC/PB
HEAD
DECK BLOCK
27
22
SYSTEM CONTROLLER
IC901 (2/2)
25
J201
SPEAKER
R CH
RY201
L
R
FUCTION
KEY
S511-516,929
TUNER PACK
L-CH
L-CH
R-CH
R-CH
R-CH
D OUT
D IN
CLK
CE
TUNED
R-CH
26
REC/PB
SWITCH
Q305,307,309
L301
BIAS OSC
Q313
T SOL
DRIVE
DRIVE
Q903,905
MOTOR
DRIVE
Q902,904
43
89
23
FUCTION
KEY
S504-510,936
95
VOL
ENCODER
S501
88
100
97
+9V
J291
AUDIO IN
FUNCTION
IC601
POWER AMP
IC401
33
28
35
2
31
27
R-CH
7
79
STEREO
TUMUT
80
R-CH
R OUT
R-CH
L OUT
51
54
94
53
R-CH
J292
PHONES
LCD
LCD501
POWER
CONTROL
Q105
+Vcc
IC102
1
2
65
MECHA BLOCK
PLAY
REC
PACK
END
DECK
MOTOR
Q310
BIAS
SWITCH
Q311, 312
+7V
44
M
40
18
50
19
8
6
9
MUTE
CONT
CONT
Q407
55
39
42
OVERLOAD
DET
Q403
TH401
PROTECT
DET
Q108-110
FAN
DRIVE
Q112-115
VM
R-CH
R-CH
2
40
46
FR VDD
+VM
BASS
ENCODER
S502
91
TREBLE
ENCODER
S503
90
D504
STAND BY
D505
XR-DB50 ONLY
VOLUME
10
11
X901
32.768kHz
15
13
X902
16MHz
+VP
VP
SWITCH
Q201,203,205
-VP
SWITCH
Q202,204,206
-VL
+VL
D101
D102
VCC
REG
REG
Q106
VDD
REG
REG
Q102,103
3.3V
REG
REG
Q104
122
D120-
+VH
-VH
+VL
-VL
VM
TU9V
CD 7V
FR VDD
D VDD(3.3V)
A VDD(3.3V)
MP3VD
D110
D111
D112
D114
D115
-VP
38
IC501
4
3
1
RESET
SWITCH
SWITCH
Q901
Q906
12
IC904
1
3
20
V STBY
D905-1
µCON +B
D905-2
IC902
1
4
CD SECTION
O-CD ON
O POWER
I-RMC
RESET
AC-CUT
O-PLLCLK
O-PLLCE
I-PLLDATA
I-TUNE
O-PB2
I-HALF SW
O-PLLDATA
59
I_AUDIO IN
I-KEY1
I-ENC0
O-ST LED
I-KEY0
74
I-WAKEUP
I-STEREO
O-TUMUT
58
I-RDSDAT
18
I-RDSCLK
I-PLAY SW
O-MOTOR
I-END SW
O-SOL
O-BIAS
FUNC CLK
O-MUTE
I-PROTECT
O-SP-ON
O-LCD SCK
1
O-LCDAT
O-LCD-RS
O-LCD CD
52
O-LCDCS
I-ENC1
I-ENC2
LED
DRIVE
Q503
28
O-BKLIGHT
32kHz-IN
32kHz-OUT
16MHz-IN
16MHz-OUT
AUX-L
OUT-L
TUNER-L
PBP-L
CD L
OUT-R
PBOR
PBOL
RECOUT-L
SI
SC
VOL INR
VOL IN L
7V
REG
REG
REMOTE
CONTROL
RECEIVER
RESET
VDD
REG
REG
A
D502, 503
(BACK LIGHT)
D113
AEP, RU
E51,AUS,KR
RDSDATA
RDSINT
AEP ONLY
LED
DRIVE
Q502
3
O-VOLUME LED
D908
11 IN-CH1
13
ST-BY
5
OUT-CH1
THERMAL
DET
Q406
R-CH
ON
DET
Q111
PROTECT
DET
Q208
DC
DET
R-CH
SWITCH
Q207
41
I-HP
IC101
1
2
12V
REG
REG
D004-007
RELAY
DRIVE
PT003
POWER TRANSFORMER
(SUB)
Q101
120V
S001
230-240V
220V
PT002
POWER TRANSFORMER
6
5
2
5
3
4
6
2
1
8
6
3
3
4
4
7
12
16
13
15
RY002
VOLTAGE
SELECTOR
PT001
POWER TRANSFORMER
PT004
POWER TRANSFORMER (SUB)
12
16
6
2
7
13
15
RY001
6
8
1
4
AC
IN
AC
IN
D002
Ver. 1.2
27
27
CX-LDB30/LDB50
CX-LDB30/LDB50
7-3. PRINTED WIRING BOARD — BD BOARD —
•
See page 24 for Circuit Boards Location.
:Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
IC101
D-6
IC251
B-5
IC301
B-6
IC303
A-7
Q10
D-3
C10
C260
C14
C15
C16
C18
C11
R405
C316
R354
R353
R352
R351
R302
R253
C315
R191
R172
R171
R162
R313
X171
R121
R12
R11
R10
Q10
C116
C312
C184
C183
C303
C302
C305
C259
C258
C257
C255
C203
C196
C195
C201
C182
C171
C172
C308
C151
C134
C125
C123
R165
R13
C17
FB301
C318
R201
C174
R173
R205
C209
C210
C314
M102
S101
M101
IC251
IC101
CN101
CN201
R419
R412
R411
R410
R409
R408
R407
R406
R404
R403
R402
R401
R305
R303
R301
R252
R251
R182
R181
R163
R151
R143
R142
R141
R133
R132
R131
R114
R113
R112
R111
R307
C311
C310
C309
C307
C306
C252
C251
C194
C181
C320
C163
C162
C143
C142
C141
C133
C132
C131
C124
C111
C122
C115
C114
C113
C112
C185
C186
R306
IC303
C317
R203
C161
C211
C212
R204
C213
IC301
C313
M
E
BD BOARD
1-861-619-
12
(12)
30
31
60
120
91
1
61
90
BD BOARD
1-861-619-
12
(12)
(SPINDLE)
M
(SLED)
1
3
5
4
1
16
17
32
64
49
48
33
(LIMIT)
1
27
C
MAIN
BOARD
CN902
(Page 31)
TP
(RFACO)
OPTICAL
PICK-UP
BLOCK
(KSM-215CFP/C2NP)
TP
(VC)
TP
(FEO)
TP
(RFDCO)
TP
(TEO)
1
7
14
8
28
22
15
21
(COMPONENT SIDE)
(CONDUCTOR SIDE)
28
28
CX-LDB30/LDB50
CX-LDB30/LDB50
7-4. SCHEMATIC DIAGRAM — BD BOARD —
•
See page 42, 43 for IC Block Diagrams.
•
See page 42 for Waveforms.
MAIN
BOARD
(5/5)
CN902
(Page 37)
C
R406
R407
R408
R409
R411
R412
R410
C151
R203
C141
R143
R142
R141
C133
R133
R132
R131
C134
TP125
TP124
C125
R121
C15
C122
C123
C132
C142
R151
C111
C113
C112
C114
R111
TP429
TP428
TP430
TP431
C115
C195
TP432
IC101
C163
R163
C196
R162
C210
C194
R253
TP418
JPO004
C251
R252
R251
C16
R12
JPO10
R11
C17
C18
R10
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
TP19
C182
C201
C181
C258
C257
C252
C255
C260
R181
R182
C183
C184
C203
C162
C161
R352
TP427
TP103
TP104
TP105
C209
TP436
TP420
TP421
C186
C185
R191
TP251
TP252
TP253
TP250
C306
R405
R404
R419
R403
R402
R401
R302
C317
R305
R301
C316
C315
R313
C307
C302
C303
C305
TP422
C312
C313
C314
C311
C309
C308
R303
C310
R353
R354
C11
C10
C14
C116
C318
R307
R351
TP433
TP187
TP401
TP409
TP411
TP410
TP434
TP419
TP412
TP413
TP414
TP415
TP416
TP417
TP408
TP407
TP406
TP405
TP404
TP403
TP402
TP186
R205
C320
C213
C212
C211
TP435
CN101
TP423
IC301
R173
Q10
C143
C171
R171
R172
R165
TP425
TP426
S101
C259
IC251
M102
M101
R201
R204
CN201
FB301
IC303
TP102
R306
R113
JPO102
JPO103
R13
TP424
R112
R114
TP177
C124
C172
C131
C174
X171
100
100
100
100
100
100
100
100
10V
10V
0
0.1
3.3k
1k
4.7k
0.01
180k
10k
1M
0.1
RFACI
RFACO
0.1
15k
0.1
0.1
0.1
0.47
1500p
0
3300p
3300p
470p
470p
1k
FFDR
FRDR
TRDR
TFDR
0.1
0.1
MDP
CXD3059AR
0.1
100
0.1
47k
0.1
0.1
10k
GAIN_SW
MDP
6800p
22k
10k
1
100k
APC
0
220
4V
1000p
3.3
E
D
A
B
C
PD
F+
F-
T-
F-
0.1
100
10V
10V
0.1
0.1
0.1
0.1
0.1
220
10V
10V
100
100
22
6.3V
22
6.3V
100
10V
10V
0.1
0.1
100
PCMDI
LRCK
PCMD
BCK
0.01
AVDD
AGND
DGND
470p
470p
0
SP+
SL+
SL-
SP-
0.1
100
100
100
100
100
100
10k
0.01
100k
100k
0.0022
0.1
220
0.1
0.1
0.1
220
4V
MP3GND
0.1
0.1
47
4V
4V
0.1
0.1
47
4V
4V
100k
0.1
100
100
10
10
0.1
100
10V
10V
0.01
10k
100
MP3VDD
MGND
MP3STB
DOUT
LOUT
ROUT
AVDD
XTCN
XRST
DATA
XLT
CLK
SENS
SCOR
MP3RST
MICS
MILP
MIDIO
MICK
MIACK
MP3REQ
MVDD
0
0
C401
0
22p
22p
220p
DVDD
16P
IOP1
TC94A34FG-002
0
2SA2119K
0.1
22p
470
1M
0
SW+
SW-
0.1
BA5947FM-E2
27P
BH15FB1WG
F
0
1k
FEI
TEI
1
IOP2
15k
15k
VC
330p
27p
100p
0.1
16.9344MHz
E
F
F
E
D
A
B
C
MIACK
MICK
MIDIO
MILP
MICS
SCOR
SENS
CLOCK
DATA
XRST
XLT
CLOCK
SENS
SCOR
XRST
MP3REQ
DATA
MP3STB
XTACN
XTACN
MP3STB
D
C
B
A
MP3RST
XLT
MP3REQ
MIACK
MICK
MIDIO
MILP
MICS
MP3RST
MDP
SFDR
SFDR
SRDR
SRDR
FRDR
FRDR
FFDR
FFDR
TFDR
TFDR
TRDR
TRDR
F+
F+
T+
T+
T-
T-
F-
F-
MDP
DOUT
AOUT1
AOUT2
AOUT1
AOUT2
VC
VCC
PD
LD
T-
F-
T+
F+
VR
AGND
F
C
B
A
E
D
OPIN-
OPIN+
SW
CH1FIN
CH1RIN
CH2FIN
CH2RIN
GND
CNF4
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OUTVREF
OPOUT
PREVCC
MIRR
NC
DFCT
FOK
VSS
LOCK
MDP
SSTP
IOVSS1
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
IOVDD1
AVDD0
AVSS0
NC
E
F
TEI
TEO
FEI
FEO
VC
A
B
C
D
NC
AVDD4
RFDCO
PDSENS
AC_SUM
EG_IN
LD
PD
RFC
AVSS4
RFACO
RFACI
AVDD3
BIAS
ASYI
ASYO
NC
VPCO
VCTL
AVSS3
CLTV
FILO
FILI
PCO
AVDD5
DDVROUT
DDVRSEN
AVSS5
DDCR
NC
BCKI
LRCKI
LRCK
VSS
PCMD
BCK
VDD
EMPH
EMPHI
IOVDD2
DOUT
TEST
TEST1
IOVSS2
NC
XVSS
XTAO
XTAI
XVDD
AVDD1
AOUT1
VREFL
AVSS1
AVSS2
VREFR
AOUT2
AVDD2
NC
IOVDD0
RMUT
LMUT
NC
XTSL
IOVSS0
XTACN
SQSO
SQCK
SBSO
EXCK
XRST
SYSM
DATA
VSS
XLAT
CLOCK
VDD
SENS
SCLK
ATSK
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
VDD
C4M
WDCK
COUT
PCMDI
VIN
GND
STBY
NC
VOUT
LOUT
AGND
ROUT
MP3RST
DOUT
MGND
MP3GND
MILP
MICS
MP3REQ
MIACK
MIDIO
MICK
MP3STB
MP3(3.3V)
DVDD(3.3V)
AVDD(3.3V)
MGND
DGND
XTCN
SCOR
SENS
XLT
DATA
XRST
CLK
M+7V
SBSY/BCKIB
SFSY/LRCKIB
TXO
VDD
CKI/CLOCK/
IRQ/FIO
VSS
PIO0/SDI2/IO0
PIO1/SDI3/IO1
PIO2/IO2
PIO3/IO3
PIO4/FI1/BUS0/IO4
PIO5/FI2/BUS1/IO5
PIO6/FI3/BUS2/IO7
PIO7/BUS3/IO7
AD4/PO04
AD3/PO03
AD2/PO02
AD1/PO01
AD0/PO00
VSS
VDD
CKO/PO13/AD16
VDDX
XO
XI
VSSX
TEST
MIMD
VSSP
VCOI
VDDP
RESET
STANBY
MICS
MILP
MIDIO
MICK
MIACK
VDDT
VSS
BCKO
LRCKO
SDO0
SDI0
BCKIA
LRCKIA
DATA
SDI1/
SDO2
CS/RAS/
AD15/CAS/
PO12
SDO3/OE
PO11/BUCK/AD14
PO10/CCE/AD13
PO9/AD12
PO08/AD11
SRMSTB
VDDT
AD10
AD9
AD8
PO07/AD7
PO06/AD6
AD5/
PO05
VDDM
WE/SDO1
AUTOMATIC
CD DSP
(LIMIT)
MOTOR/COIL
(SPINDLE)
(SLED)
+1.5V REGULATOR
MP3 DECODER
CONTROL
POWER
DRIVE
CH1OUTF
(KSM-215CFP/C2NP)
NO MARK: FM
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