Sony CX-LEM550 / XR-EM550 Service Manual ▷ View online
17
17
CX-LEM550
— MAIN SECTION —
AC
DETECT
Q333, 338
R-CH
+
80
INPUT SELECT,
ELECTRICAL VOLUME
IC302
79
28
REC-O-L
18
OUT-L
13
CONT
21 CD-L
23 TUNER-L
2 TAPE-L
19 AUX-L
REC/PB
SWITCH
Q326 – 332
R-CH
CD
A
• Signal Path
: CD PLAY
: TAPE PLAY
: REC
• R-ch is omitted due to same as L-ch.
: TUNER
CD SERVO
Section
J303
R
MD
L
: AUX IN
J301
PHONES
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
+
–
–
–
+
R
L
J302
FM/AM TUNER PACK
TU LCH
TU RCH
TU CE
CE
R-CH
TUNED
TUNED
STEREO
STEREO
MUTE
TU-MUTING
TU DI
DO
TU DO
DI
TU CL
CLK
CE
TUNED
STEREO
DO
DI
CLK
RDS DATA
RDS DATA
RDS CLOCK
RDS CLOCK
BIAS OSC
T301
REC BIAS
SWITCH
Q346 – 348
B +10V
BIAS OSC
Q344, 345
ERASE
HRPE301
(REC/PB/ERASE)
TAPE MECHANISM
DECK BLOCK
L-CH
R-CH
R-CH
DC
DETECT
Q342, 343
+
POWER
AMP
IC501
75
TU DI
74
TU CLOCK
73
TU CE
71
TU TUNED
70
TU STEREO
76
TU DO
RDS DATA
RDS CLOCK
25
TA RP
26
TA BIAS
RDS-DATA
RDS-CLK
TU MUTE
TU-MUTING
77
18
I-POWER_MONITOR
28
F-DATA
83
AMP MUTE
84
AU MUTE
82
AMP-STBY
CAPSTAN/REEL
MOTOR DRIVE
Q804, 805
SWITCH
Q806
PLUNGER
DRIVE
Q802, 803
M M
(CAPSTAN/REEL)
(DECK-A)
SOL 10V
MOTOR 10V
PACK
R RFC
PLAY SW
END SW
TA PLAY SW
TA END SW
TA END SW
24
68
67
TA-SW
81 TA SOL
78 TA MO
RMC_IN
29
SYSTEM CONTROLLER
IC801 (2/2)
(EXCEPT SP, E51)
(EXCEPT SP, E51)
(SP, E51)
FAN MOTOR
DRIVE
Q349, 350
+
D307
D388
D319
–30V
REGULATOR
Q334 – 337
(AC IN)
SUB POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
T902
AC 3.6V
SYS +3.2V
SYS +3.1V
TO
FLUORESCENT
INDICATOR TUBE
FL –30V
RECT
D911-914
D810
D809
D312, 313
D320
D922, 923
D905
RECT
RECT
D920, 921
AMP B+
TO
POWER AMP
AMP B–
VOLTAGE
SELECTOR
S901
+10V
REGULATOR
IC305
VM +10V
+3.9V
REGULATOR
Q312 – 314
RECT
D916, 917
RECT
D918, 919
RECT
D907 – 910
SYS +3.3V
AM
ANTENNA
FM ANT
AM ANT
ANT GND
ANT GND
FM 75
Ω
COAXIAL
VOLTAGE
DETECT
IC803
MAIN POWER
RELAY DRIVE
RELAY DRIVE
Q311, 315
+3.3V
REGULATOR
D304
+3.3V
REGULATOR
Q317
M +7V
D +3.3V
CD +1.5V
B+ SWITCH
Q319, 320
94
CD ON
85
POWER ON
23
I_POWER_DOWN
11
RESET
REMOTE CONTROL
RECEIVER
IC802
DS G/I-BASS LED
88
LED DRIVE
Q808
D811
i-Bass
ST-BY LED
87
LED DRIVE
Q809
D814
(STANDBY)
X801
32.768kHz
13
12
O-XT2
I-XT1
16
15
X802
10MHz
XOUT
XIN
FL801
FLUORESCENT
INDICATOR TUBE
S1 – 16
G1 – G12
31 – 42
43 – 45, 47 – 50,
52 – 60
22 VOL_ENCODER
66 CD OPEN
ROTARY
ENCODER
RV801
VOLUME
S801 – 815
(FRONT PANEL KEYS)
S820
(CD LID OPEN/CLOSE DETECT)
KEY0,
KEY1
KEY1
27, 20
RESET SWITCH
Q801
RY901
+1.5V
REGULATOR
IC303
8
13
14
6
3
11
+INA
+INB
STANDBYB
MUTEA
11
MUTEB
OUTA
OUTB
SWITCH
Q806
M301
(FAN)
(FAN)
18
18
CX-LEM550
7-2. PRINTED WIRING BOARD — CD BOARD —
•
See page 15 for Circuit Boards Location.
:Uses unleaded solder.
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
R161
C161
C211
C212
R204
C213
IC301
C313
M
E
(COMPONENT SIDE)
CD BOARD
1-861-619-
12
(12)
30
31
60
120
91
1
61
90
(CONDUCTOR SIDE)
CD BOARD
1-861-619-
12
(12)
(SPINDLE)
M
(SLED)
1
3
5
4
1
16
17
32
64
49
48
33
(LIMIT)
1
27
A
MAIN
BOARD
CN305
TP
(RFACO)
OPTICAL
PICK-UP
BLOCK
(KSM-213EDP/C2NP)
TP
(VC)
1
7
14
8
28
22
15
21
• Semiconductor
Location
Ref. No.
Location
IC101
C-6
IC251
B-4
IC301
B-6
IC303
A-6
Q10
D-3
(Page 20)
19
19
CX-LEM550
7-3. SCHEMATIC DIAGRAM — CD BOARD —
/C2NP
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
R161
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
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
22p
22p
220p
DVDD
16P
IOP1
TC94A34FG-002
0
2SB169KT146
0.1
22p
470
1M
0
SW+
SW-
0.1
BA5947FM
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
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
• See page 28 for Waveforms.
• See page 28 to 30 for IC Block diagrams.
(Page 21)
20
20
CX-LEM550
7-4. PRINTED WIRING BOARD — MAIN BOARD —
•
See page 15 for Circuit Boards Location.
:Uses unleaded solder.
E
E
E
Q333
Q315
Q338
E
Q342
Q343
E
E
Q329
Q330
Q328
Q332
Q331
E
E
E
E
E
Q320
E
Q327
Q326
E
E
E
IC302
E
E
E
E
E
E
E
E
E
E
E
E
E
E
JR302
JR303
E
CD
BOARD
CN201
A
AMP
BOARD
CN308
B
CONTROL
BOARD
CN303
C
MAIN BOARD
R
L
1-861-718-
5
6
7
1
2
3
4
L-CH
REC/PB
HEAD
R-CH
ERASE
HEAD
1
3
28
15
1
14
2
6
5
4
HP
BOARD
CNB501
D
POWER
BOARD
CN903
E
AMP
BOARD
CN307
F
CONTROL
BOARD
CNB302
G
R
L
+
+
−
−
MD
J303
SPEAKER
IMPEDANCE
USE6-16
Ω
J302
(Page 18)
(Page 22)
(Page 24)
(Page 22)
(Page 26)
(Page 22)
(Page 24)
• Semiconductor
Location
Ref. No.
Location
D301
F-6
D302
C-3
D303
D-3
D304
E-4
D305
B-5
D306
B-5
D307
E-6
D308
F-5
D309
A-4
D310
E-5
D311
E-6
D312
D-3
D313
D-3
D317
E-6
D318
F-4
D319
G-4
D320
C-3
D386
D-5
D387
D-4
D388
D-3
D389
D-3
D390
B-1
D392
C-2
D393
B-2
D396
A-3
IC302
B-5
Q311
F-5
Q312
E-4
Q313
E-4
Q314
E-4
Q315
F-6
Q317
C-4
Q319
D-3
Q320
C-3
Q326
B-6
Q327
B-6
Q328
A-6
Q329
A-6
Q330
A-6
Q331
A-6
Q332
A-7
Q333
F-6
Q334
G-5
Q335
G-5
Q336
G-5
Q337
F-4
Q338
F-6
Q342
C-5
Q343
C-4
Q344
D-6
Q345
D-6
Q346
C-6
Q347
C-5
Q348
D-6
Q349
D-4
Q350
G-4
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