Sony CX-LMN75 / XR-MN75 Service Manual ▷ View online
29
29
CX-LMN75
CX-LMN75
— MAIN SECTION —
: TUNER
: CD
• Signal Path
• R-CH is omitted due to same as L-CH
: AUX
: PB (TAPE)
: REC (TAPE)
BIAS
OSC
VDD
ERASE
HEAD
REC/PB
HEAD
DECK BLOCK
27
22
SYSTEM CONTROLLER
IC901 (2/2)
25
L
R
AUX IN
J202
HEADPHONES
R CH
L
R
FUCTION
KEY
S924-931,942
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
L451
BIAS OSC
Q601
T SOL
DRIVE
DRIVE
Q903,905
MOTOR
DRIVE
Q902,904
43
89
23
FUCTION
KEY
S932-941
95
VOL
ENCODER
S921
92
100
D251-254
RELAY
DRIVE
AC
IN
PT251
POWER TRANSFORMER
(SUB)
Q008
RY251
97
+9V
FUNCTION
IC601
33
28
35
2
31
27
R-CH
7
24
STEREO
TUMUT
21
R-CH
R OUT
R-CH
L OUT
51
54
94
53
R-CH
J201
SPEAKER
FL
DISPLAY
FL901
POWER
CONTROL
Q021
+Vcc
IC001
1
3
AC
DET
Q063,064
S250
120V
230-240V
220V
D009
65
MECHA BLOCK
PLAY
R REC
F REC
PACK
END
DECK
MOTOR
J602(1/2)
SFR451
Q453,454
BIAS
SWITCH
Q451,452
VM
44
M
40
18
50
19
8
6
9
BOOST
CONT
Q501,503,505,507
BASS
SWITCH
Q508-510
41
42
MUTE
CONT
CONT
Q235
Q607
55
39
88
87
I-BASS
IC501
MUTE
Q101
Q117,119
Q103,105,107,109
Q111,113,127
PRE
AMP
POWER
AMP
DC
DET
THERMAL
DET
Q123
Q280,281
TH101
OVER LOAD
DET
Q250,251
SUB
WOOFER
J602(2/2)
FAN
DRIVE
Q291-293
VM
2
40
46
FR VDD
+VM
BASS
ENCODER
S922
91
TREBLE
ENCODER
S923
90
D901
STAND BY
LED
DRIVE
DRIVE
Q994
3
D902
i-BASS
10
11
X901
32.768kHz
15
13
X902
16MHz
+VP
VP
SWITCH
Q201
DC
DET
Q203,205
-VP
SWITCH
Q202,204,206
-VL
+VL
120V
120V
110V
0V
0V
PT253
POWER TRANSFORMER
PT252
POWER TRANSFORMER (AEP,UK)
12
16
6
6
5
2
2
3
4
7
7
13
15
12
16
13
15
RY252
D001
D002
VM
REG
Q006,011
Q012,015
Q012,015
VCC
REG
REG
Q009,010
VDD
REG
REG
Q018,019
3.3V
REG
REG
Q020
012
D010-
+VH
-VH
+VL
-VL
VM
VCC
CD 7V
FR VDD
D VDD(3.3V)
A VDD(3.3V)
D022
D026
OVER CURR
DET
Q060-062
D027
D029
D036
D031
D038
D037
RESET
Q065
-VP
38
IC902
4
2
3
RESET
SWITCH
SWITCH
Q901
Q906
12
IC904
1
3
20
V STBY
D906
D703
µCON +B
D905
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
I-KEY1
I-ENC0
O-ST LED
I-KEY0
I-STEREO
O-TUMUT
I-PLAY SW
O-MOTOR
I-END SW
O-SOL
O-BIAS
FUNC CLK
BASS0
BASS1
O-MUTE
I-PROTECT
I-LEVEL-L
I-LEVEL-R
LED
Q995
O-LCD SCK
1
O-LCDAT
O-LCD-RS
O-LCD CD
52
O-LCDCS
I-ENC1
I-ENC2
BASS-LED
LED
DRIVE
Q996
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
3
1
IN L
OUT L
VOLTAGE
SELECTOR
7V
REG
REMOTE
CONTROL
RECEIVER
RESET
VDD
REG
REG
EXCEPT E
EXCEPT E
E
E
A
SWITCH
SWITCH
Q608
D905-907
(BACK LIGHT)
D028
D023
(AEP,UK)
(SP,E51,AUS)
(SP,E51)
(SP,E51,AUS)
30
30
CX-LMN75
CX-LMN75
8-2. PRINTED WIRING BOARDS — BD SECTION —
• See page 27 for Circuit Boards Location.
Ref. No.
Location
IC101
C-6
IC251
B-4
IC301
B-6
IC303
B-6
Q10
D-3
• Semiconductor
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
C161
C211
C212
R204
C213
IC301
C313
C401
M
E
(COMPONENT SIDE)
BD BOARD
1-861-619-
12
(12)
30
31
60
120
91
1
61
90
(CONDUCTOR SIDE)
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 36)
TP
(RFACO)
OPTICAL
PICK-UP
BLOCK
(KSM-215CFP)
TP
(VC)
TP
(FEO)
TP
(RFDCO)
TP
(TEO)
1
7
14
8
28
22
15
21
1
2
A
B
C
D
E
3
4
5
6
7
31
31
CX-LMN75
CX-LMN75
8-3. SCHEMATIC DIAGRAM — BD SECTION —
MAIN
BOARD
(5/6)
CN902
(Page 41)
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
2SB1690K
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
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
POW
VCC
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)
32
32
CX-LMN75
CX-LMN75
8-4. PRINTED WIRING BOARDS — CHANGER SECTION —
• See page 27 for Circuit Boards Location.
•
: Uses unleaded solder.
Ref. No.
Location
D701
C-4
D711
C-4
D721
C-4
IC701
C-4
IC711
D-4
IC721
C-4
IC751
C-2
Q731
B-5
• Semiconductor
Location
IC701
IC721
IC711
IC751
In the midst disc is moving
between play position and stocker
ON : disc is play position side
OFF : disc is stocker side
between play position and stocker
ON : disc is play position side
OFF : disc is stocker side
OFF: In the Midst disc is moving
between play position and
stocker
stocker
S716 (STOCKER IN/OUT)
S717 (DISC POSITION)
S718 (STOCKING)
ON:The moment disc in/out
from stocker
36
1
2
A
B
C
D
E
3
4
5
6
7
9
8
CN701
R733
C768
C767
C766
C769
JW729
JW730
JW731
JW732
JW733
JW734
S715
M761
S714
S713
S713
S714
S711
S711
LP761
CN761
S716
JW726
JW735
JW725
JW728
C756
C755
C753
C752
C751
C761
CN721
CN711
CN731
CN741
S718
S717
C754
C758
CN708
CN707
CN706
CN704
CN705
JW712
JW711
JW710
JW702
JW701
JW703
JW704
JW705
JW708
JW706
JW707
JW714
JW713
JW719
JW715
JW716
JW717
JW718
JW721
JW723
JW724
JW727
JW709
JW720
JW722
CN710
M771
M781
S771
CN771
CN781
CN751
S771
CN702
C771
C711
C765
C764
C763
C762
Q731
R732
R731
R734
R701
R722
R721
C781
S702
CN703
R711
R712
R702
D701
D721
D711
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