Sony CDX-M50IP / CDX-MR50IP Service Manual ▷ View online
21
21
CDX-M50IP/MR50IP
CDX-M50IP/MR50IP
5-1. BLOCK DIAGRAM — MAIN SECTION —
(Page 22)
1
4
8
7
15
14
10 11
9
5
DN
4 B2
3 B1
6 C2
39 VSM
12 TU ATT
33
I2C_CKO
55
FUNC_SEL
SCL
SCL
SDA
SDA
SA_IN
SA_IN
MUTE
R-CH
SA_CLK
SA_CLK
MUTE
SYSRST
BUSON
UNISCK
UNISCK
BUIN
UNISI
UNISO
LINK_OFF
DOOR_SW
SA_DATA
34
I2C_SIO
46
SA_IN
10
SA_CKO
9
SA_DATA
14
VOLATT
5
BEEP
6
AMPSTB
7
DIAG
99
ACC_IN
25 EEP_CKO
24 EEP_SIO
38 QUALITY
89 EJECT_OK_SW
13 NSMASK
59 UNISO
58 UNISI
60 UNISCK
61 Z-MUTE
91 CD_ON
92 CDM_ON
88 SYSRST
77 RESET
95 BUSON
54
76
BUIN
1 VOUT
+3.3V
2
VDD
ATT 100
OPEN-MUTE
5 C1
4 SCL
IPOD-ATT
2 SDA
16 ACGND
22 STB
25 DIAG
13 RST
3
BATT
BATT
BATT
CNJ400
(BUS CONTROL IN)
D603
D602
TH400
2
RST
1
BUS ON
4
CLK
6
5
6
4
2
3
1
7
8
DATA I/O
DISP+B (+9V)
ACC
ANT-R
AMP-R
R-CH
RR-
RR+
FR-
FR+
+B
RL-
RL+
FL-
FL+
11 IN-RF
12 IN-RR
3
LF-
5
LF+
7
LR-
9
LR+
27
SW2
29
SW1
33
REG4
34
REG5
31
REG3
30
REG1
37
REG2
35
VP
29
SCL
30
SDA
17
CLK
19
SOUT
28
MUTE
24
OUTR1
26
OUTF1
23
OUTR2
25
OUTF2
21
OUTS2
18
DATA
9 DP2
1 A1
2 A2
7 DP1
R-CH
R-CH
R-CH
ANT
10 VCC8.3V
12C-SCL
12C-SDA
12C-SCL
BATT
R-CH
12C-SDA
VSM
TUATT
TUATT
EEPCKO
EEPSIO
AU_LCH
AU_RCH
EJECT_OK
UNISO
UNISI
UNICLK
Z-MUTE
CD-ON
CDM-ON
LINK_OFF
SYS_RST
LINK_OFF
SYS_RST
BUS_ON
B/U_CHECK
A-ATT
D_3.3V
A_3.3V
BU_3.3V
D_3.3V
A_3.3V
BU_3.3V
BUIN
UNISCK
UNISI
UNISO
IPOD-SYSRST
DR_6V
MECHA6V
+3.3V
SERVO3.3V
UNISI
UNISO
UNISCK
SYSRST
LINK_OFF
BUSON
BUIN
BUIN
R-CH
D511
D400
D800
D493
D491
D495
D494
11 VDD5V
15 E2PVDD
AU8V
TU+5V
+3.3V
L
3
R
14
SDA
13
SCL
7
TUN_MUTE
6
S-METER
17
E2PSDA
5
QUALITY
9
RDS OUT
11
1
9
9
2
4
12
3
11
5
6
16
7
10
15
21
22
24
21
22
24
26
16
16
5
7
7
28
27
25
9
18
19
8
1,2
6
16
E2PSCL
-2
R
-1
L
J451 (1/2)
CN803
IPOD
CONNECTOR
BUS
AUDIO
IN
J901
J1
(ANTENNA)
CN350
S101
RESET
AUX
TU1
TUNER UNIT
ELECTRONIC VOLUME
IC401
IPOD/AUX GND FILTER
IC403
IPOD/AUX SELECT SWITCH
IC402
POWER AMP, MULTI
VOLTAGE REGULATOR
IC300
CN300
SYSTEM CONTROL
IC501 (1/2)
BUS INTERFACE
IC601
RESET
IC602
R-CH
R-CH
R-CH
R-CH
R-CH
IPOD-AUD-L
IPOD-AUD-R
IPOD-AUD-GND
CD
MECHANISM
UNIT
(MG-101FC)
53 TU_ATTIN
SA_DATA
R-CH
R-CH (FRONT)
22
OUTS1
R-CH (REAR)
MR50IP
MUTE DRIVE
Q491,492
MUTE
CONTROL
SWITCH
Q496
ACC DETECT
Q702
+5V REG
Q3
LINK ON/OFF CONTROL
Q600,601
BATTERY CHECK
Q605
MUTE
Q470
MUTE
Q440
MUTE
Q430
MECHA6V
SERVO3.3V
AU8V
U-COM (+5V)
BATT
FU601
R-CH
J451 (2/2)
-5
L
-6
R
-3
L
-4
R
FRONT AUDIO OUT
REAR/SUB AUDIO OUT
97
ILL_IN
ILL
14
ILL DETECT
Q703
98
TELATT
TEL–ATT
13
TEL–ATT
DETECT
Q701
12 BUSIN
11 CLK-IN
10 B/U-C
8 DATA OUT
9 DATA IN
3 VOUT
U-COM (+5V)
+3.3V
2
VIN
+3.3V REG
IC502
TU+5V
AU8V
: AUDIO
: AM or MW
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD
: AUX
: iPod
: FM
DISPLAY
SECTION
SECTION
A
DISPLAY
SECTION
SECTION
C
DISPLAY
SECTION
SECTION
B
RDS RECEIVER
IC50
NS
MASK
Q1
11
SCL
12
SDA
15
INTN
16 MPX
SDA
SCL
8
MUTE_CON
X50
8.664MHz
10
9 XTI
XTO
26 RDSON
56 DAVN
B+ SWITCH
Q50
+3.3V
IPOD/AUX
SELECT CONTROL
Q401
2
1
12
13
1
3
2
(Page 22)
(Page 22)
22
22
CDX-M50IP/MR50IP
CDX-M50IP/MR50IP
5-2. BLOCK DIAGRAM — DISPLAY SECTION —
KEY ACK
ENABLE
Q501
LED DRIVER
Q589,590
40
28
29
27
41
52
48
SYSTEM CONTROL
IC501 (2/2)
REMOTE CONTROL
SIGNAL RECEIVER
IC971
KEYIN1
71 RC_IN1
RC1
RC0
D501
43 RC_IN0
LCD_SO
LCD_CKO
LCD_CE
30
DOOR_IND
64
3
SIRCS
OUT
KEYIN0
32 RE–IN1
RE-0
DOOR_SW
RE-1
31 RE–IN0
XOUT
XIN
KEY ACK
AD_ON
70 DOOR_SW
75 NOSE_SW
LED201
(DISC IN)
LED202
KEY MATRIX
S901–915
VOLUME
CONTROL
DIAL/
SELECT
BUTTON
RE901
IPOD-ATT
BUIN
IPOD-SYSRST
UNISCK
UNISO
UNISI
ROTARY
ENCODER
J370
REMOTE
IN
(
)
CN201
CN901
14
14
+
80
79
X501
32.768kHz
OSCIN
OSCOUT
83
82
X500
18.432MHz
57 BUSON_A
S201
Z
MAIN
SECTION
A
MAIN
SECTION
B
MAIN
SECTION
C
3 AREASEL2
S102
(FRONT PANEL DETECT)
3
IPOD ADAPTOR
IC250
IPOD CHARGE CONTROL
IC800
CN801
IPOD
CONNECTOR
14 OC1A
XTAL1
XTAL2
BATT
3
1
2
12 INT1
SCK
1
MOSI
D510
2
MOSO
D250
4
RESET
41
T1
11
INT0
IPOD-CHARGE
IPOD-RX5V
IPOD-3.3V
IPOD-TX5V
IPOD-DET
42
AIN0/INT2
16
OC2
LCD DRIVER/LED CONTROL
IC901
CL
CE
77
78
76
80
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
3
|
64
65
|
68
S1
I
S62
DIMMER
DI
LED930,931
(
)
LCD BACK
LIGHT
LCD BACK LIGHT
DIMMER CONTROL
Q901
Z
S501
FREQUENCY
SELECT
(
)
+3.3V
M50IP
FM(200k)
AM(10k)
FM(50k)
AM(9k)
GREEN
2
GREEN LED
CONTROL
Q919
RED LED
CONTROL
Q920
LED902–916,
943,947,
948,950
DISP+B
(
)
RED
1
KEY/VOLUME
ILLUMINATION
(
)
D946,949,
951–966,993
KEY
ILLUMINATION
BUS ON/OFF
SWITCH
Q824
IPOD DETECT
SWITCH
Q806
7 RXD
IPOD TX+5V
CONTROL
SWITCH
Q801,802
IPOD RX+5V
CONTROL
SWITCH
Q803,804
X250
7.3728MHz
7
8
1
4
6
7
8
(Page 21)
(Page 21)
(Page 21)
23
23
CDX-M50IP/MR50IP
CDX-M50IP/MR50IP
: Uses unleaded solder.
5-3. PRINTED WIRING BOARD — MAIN SECTION —
(Page 29)
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
M50IP
MR50IP
R501
R502
R503
R505
R560
R559
R302
C319
R
301
C318
R
510
R
554
R
455
R
545
C504
R514
R515
R516
Q590
R
549
R
548
JC301
C507
C509
C511
R540
C510
R539
R520
C512
R371
R513
R523
R524
R525
R526
R541
R527
JC35
JC34
R529
R590 R528
D502
Q
601
Q
600
R608
R547
R530
JC501
D494
Q496
R370
R546
R509
C519
R543
D
400
IC602
R536
L500
C506
R601
R610
R602
R553
R519
C135
R358
R357
C362
IC402
JC402
R484
R433
C484
Q
450
R452
C452
Q
430
R432 C432
R
471
Q
470
R472
C466
C472
R461
Q
460
R
462
C465
C462
JC302
C315
C313
C312
C320
C301
C323
C304
C324
C305
C307
C309
R521
R
507
R550
R512
IC401
R441
Q
440
R442
C442
R
421
Q
420
R422
C422
C447
C443
C446
C
423
C515
C516
C402
R401
C418
FB403
R402
C
412
C410
FB401
JC502
JC30
C417
FB407
IC601
C415
FB
404
R
351
R
562
R
563
R533
R532
D702
R706
R707
Q702
R708
R710
D704
D705
R711
R712
Q703
R534
C901
R
701
D701
R703
R704
Q701
R702
C902
C602
R611
R606
R607
D604
R
605
C601
Q
605
D602
D603
R604
R603
JC
300
D493
JC36
D605
D606
R537
R531
Q
802
Q
801
Q
804
Q
803
D
800
Q
806
R808
R807
R807
C
802
D
801
D
802
D
803
C
803
C806
C
N801
D804
R500
D510
R825
Q824
CN800
JC503
R517
R518
C520
C523
C521
C812
R822
R494
C807
R819
R818
C809
IC403
D806
R812
R813
R814
R817
R
816
R815
Q492
Q491
D491
R491
C502
C325
JC505
C508
C513
IC502
C813
C704
C705
D495
JC506
L901
JC504
JC406
IC501
JC507
Q
1
L1
Q50
R57
R58
L5
D
107
D
106
D
105
Q589
D
101
D109
D110
R12
R3
R2
R1
C
4
R4
R5
D108
D114
R522
Q
501
D
501
Q401
R9
R8
R
542
D
104
D
115
C116 C117
C103
D
102
D
103
D
116
R356
R
355
C360
C56
C57
C58
R55
C50
C51
C
52
C53
C54
R
53
C60
C55
R
52
C8
C9
D2
C7
L4
R10
C3
R481
C482
C483
R483
R482
R419
R417
R418
R416
C413
C414
C327
C328
IC50
C
10
R480
C111
JC50
R820
R821
C14
C998
C419
C808
C810
JC401
R361
R565
C815
R
803
R
802
JC303
L801
C816
JC600
R555
R556
R557
R558
JC601
C137
C804
R
431
R451
R495
FB358
FB359
FB357
C524
D496
D497
C517
C518
JC508
D861
C824
C825
C6
Q3
IC800
L303
L302
L301
R806
R810
R809
FB405
FB406
R620
R
826
R811
FB402
JC101
R535
L2
L3
R54
R11
JC821
C63
C64
C62
R440
JC495
R7
R6
R13
C317
S501
C1
L101
X50
C5
C2
C481
C300
C321
C363
C364
C485
C487
C471
C461
C303
D312
D311
D
310
D
309
D307
D
306
D305
D
308
D301
D303
D302
D304
C316
C314
C306
C308
C
N350
IC300
C441
J451
C421
C480
X500
S102
S101
C401
C403
R705
C
702
C703
CNJ400
TH400
C805
C811
C491
C
405
D
511
CN300
FU601
L300
D607
C701
CN803
JW101
JW103
JW104
JW
105
JW106
JW
107
JW
108
JW109
JW113
JW114
JW115
JW
116
JW
117
JW118
JW
119
JW
120
JW
121
FB
408
JW122
JW123
JW124
JW
125
JW
112
JW
126
JW
127
JW129
JW130
JW131
JW132
JW134
JW135
JW
139
JW
140
JW
141
JW
142
JW
143
JW
144
JW
145
JW146
JW147
JW148
JW149
JW150
JW151
JW152
JW
153
JW
154
JW
157
JW
158
JW
159
JW160
JW
161
JW162
JW163
JW164
JW165
JW166
JW167
JW
169
JW
171
JW
172
JW173
JW174
JW175
JW176
JW
178
JW
179
JW
180
JW184
JW185
JW
186
JW187
JW188
JW189
JW190
JW191
JW192
JW
193
JW
194
JW
195
JW
196
JW197
JW199
JW201
JW202
JW204
JW205
JW
206
JW
207
JW
208
JW209
JW211
JW212
JW213
JW214
JW215
JW
216
JW217
JW218
JW
220
JW221
JW222
JW223
JW224
JW225
JW226
JW227
JW230
JW238
JW133
TU1
J1
CN802
JW237
JW
239
JW
240
X501
JW
241
JW
242
J370
JW
243
JW
244
JW
245
JW
246
C61
JW102
C310
C600
JW
247
JW
181
JW198
JW200
JW155
JW248
JW249
JW250
C361
JW
251
C817
JW203
JW
111
JW110
JW
258
JW259
JW260
JW252
JW257
JW219
JW255
JW254
JW253
JW256
C431
C451
JW228
JW229
JW
232
JW
233
JW
234
JW
235
JW
236
JW
231
JW
128
JW
182
JW
136
JW210
JW
156
JW168
JW
262
JW
138
JW
137
C326
C501
C
311
C505
R538
(Page 28)
(Page 28)
D496
I-6
D501
H-6
D502
G-7
D510
F-9
D511
E-9
D602
D-10
D603
D-10
D604
D-10
D605
D-9
D606
D-9
D607
C-9
D701
C-8
D702
D-8
D704
C-8
D705
D-8
D800
G-9
D801
H-9
D802
H-9
D803
G-9
D804
G-9
D806
G-8
D861
G-3
(IC50)
G-2
IC300
B-6
IC401
D-3
IC402
G-3
IC403
F-3
IC501
G-6
IC502
D-6
IC601
D-9
Ref. No.
Location
D2
F-3
D101
I-3
D102
I-4
D103
I-4
D104
I-4
D105
I-3
D106
I-3
D107
I-3
D108
H-3
D109
H-3
D110
H-3
D114
I-3
D115
I-3
D116
I-4
D301
C-8
D302
C-8
D303
C-9
D304
C-9
D305
C-6
D306
C-7
D307
C-7
D308
C-6
D309
C-7
D310
C-7
D311
C-7
D312
C-7
D400
G-8
D491
E-5
D493
E-6
D494
G-8
D495
G-8
• Semiconductor Location
Ref. No.
Location
IC602
G-7
IC800
F-9
(Q1)
E-3
Q3
E-3
(Q50)
G-2
Q401
G-4
Q420
B-4
Q430
B-3
Q440
B-4
Q450
B-4
Q460
C-4
Q470
C-4
Q491
E-5
Q492
E-6
Q496
G-8
Q501
H-6
Q589
H-2
Q590
H-3
Q600
E-10
Q601
E-10
Q605
D-10
Q701
D-8
Q702
E-7
Q703
D-8
Q801
H-8
Q802
H-8
Q803
H-8
Q804
H-8
Q806
G-9
Q824
G-9
Ref. No.
Location
( ): CDX-MR50IP only
24
24
CDX-M50IP/MR50IP
CDX-M50IP/MR50IP
IC B/D
IC B/D
C701
D303
D304
D301
D302
C600
R610
R611
D604
D605
C306
D305
D306
D307
D308
D309
D310
D311
D312
C317
R301
R302
R604
D602
R603
R706
C702
R708
R707
R703
R704
D702
Q600
R608
D607
D705
R711
R712
C703
Q492
C491
R491
D491
D704
D511
R605
R620
JC504
JC303
Q601
Q491
C466
C465
C309
C307
C305
C324
C304
C323
C301
JC301
JC300
C472 C462
C704
C705
C602
JC601
C601
JC30
C320
C310
C312
C313
C314
C315
C316
C311
C318
C319
IC300
L901
C308
FU601
CN300
L303
L302
L301
CNJ400
R701
D701
R710
C902
C901
JC36
R702
R606
R607
R601
R602
D510
JC302
R705
TH400
JC600
J370
Q605
Q703
Q701
Q702
C303
L300
D603
D606
IC601
5-4. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) —
• Refer to page 32 for IC Block Diagrams.
(Page 2
7)
(Page 25)
(Page 26)
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