DOWNLOAD Sony CDX-GT450U / CDX-GT457UE / CDX-GT500U / CDX-GT500US / CDX-GT505U / CDX-GT50UMS Service Manual ↓ Size: 1.87 MB | Pages: 41 in PDF or view online for FREE

Model
CDX-GT450U CDX-GT457UE CDX-GT500U CDX-GT500US CDX-GT505U CDX-GT50UMS
Pages
41
Size
1.87 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-gt450u-cdx-gt457ue-cdx-gt500u-cdx-gt500us-cdx-.pdf
Date
PREV: Sony CDX-GT550UI / CDX-GT55UIW / CDX-GT600UI Service Manual

Sony CDX-GT450U / CDX-GT457UE / CDX-GT500U / CDX-GT500US / CDX-GT505U / CDX-GT50UMS Service Manual ▷ View online

CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
17
17
• Waveforms
– MAIN Board –
For Schematic Diagrams.
Note:
•  All capacitors are in μF unless otherwise noted. (p: pF) 50 
WV or less are not indicated except for electrolytics and 
tantalums.
•  All resistors are in Ω and 1/4 W or less unless otherwise 
specifi ed.
•      f  : Internal component.
•  C : Panel designation.
THIS  NOTE  IS  COMMON  FOR  PRINTED  WIRING  BOARDS  AND  SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•  A  : B+ Line.
•  B  : B– Line.
•  Voltages and waveforms are dc with respect to ground 
under no-signal (detuned) conditions.
  no mark : FM
  ( 
) : AM or MW
  < 
> : CD PLAY
        
*
   : Impossible to measure
•  Voltages are taken with a VOM (Input impedance 10 M
Ω).
  Voltage variations may be noted due to normal production 
tolerances.
•  Waveforms are taken with a oscilloscope.
  Voltage variations may be noted due to normal production 
tolerances.
•  Circled numbers refer to waveforms.
• Signal path.
  J : 
CD
  F : 
FM
  f 
: AM or MW
  L : 
AUX
  c : 
USB
• Abbreviation
  RU 
: Russian model
 AR  : 
Argentina 
model
  EA 
: Saudi Arabia model
  MX 
: Mexican model
  IND 
: Indian model
For Printed Wiring Boards.
Note:
•  X : Parts extracted from the component side.
•  Y : Parts extracted from the conductor side.
•      a : 
Through 
hole.
• 
 : Pattern from the side which enables seeing.
  (The other layers’ patterns are not indicated.)
• Abbreviation
  RU 
: Russian model
 AR  : 
Argentina 
model
  EA 
: Saudi Arabia model
  MX 
: Mexican model
  IND 
: Indian model
Caution:
Pattern face side: 
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen 
from the pattern face are indicated.
Parts on the parts face side seen from 
the parts face are indicated.
2.9 Vp-p
32.768 kHz
3.5 Vp-p
7.92 MHz
1 V/DIV, 20 ȝsec/DIV
2 V/DIV, 50 nsec/DIV
1
 IC501 
qa (XOUT)
2
 IC501 
qd (OSCOUT)
0.05 Vp-p
4 MHz
0.05 V/DIV, 50 nsec/DIV
3
 IC001 
qh (XTAL1)
Note: The components identifi ed by mark 0 or dotted 
line with mark 0 are critical for safety. 
 
Replace only with part number specifi ed.
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
18
18
4-3.  PRINTED  WIRING  BOARD  – MAIN Section –
• 
 : Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
IC001
IC401
IC403
IC601
IC301
IC501
IC402
KEY BOARD
CN901
A
AEP,UK,RU MODEL
1
AEP,UK MODEL
2
EXCEPT GT457UE
3
EXCEPT AEP,UK,RU MODEL
4
GT457UE
5
EXCEPT AR MODEL
6
AR MODEL
7
EA MODEL/GT457UE
8
EXCEPT EA MODEL
9
1
2
12
13
B1
A1
B14
A14
1
37
2
36
21
20
40
1
1
16
17
32
1
100
80
81
50
51
30
31
1
13
26
25
14
27
JW370
C20
R401
C21
R402
C22
R403
C23
R404
C24
R405
JC131
JW375
C25
R406
C26
R407
JW377
C27
C28
R409
R601
R602
R603
R604
R410
R605
R41
1
R606
R607
R608
R609
R415
R416
R417
JW387
R418
R419
JW389
FB801
FB802
R610
R611
CN402
R420
R421
R422
R423
JW393
R424
JW394
JC346
JW398
R429
JW399
R815
R816
R430
R431
R432
C203
R433
R434
R435
R436
JC356
R438
C401
C402
FB826
C403
C405
R441
JC361
JL001
JC362
JL002
JC363
JL003
C407
JL004
JL005
C409
JC366
JL006
JL007
C600
JL008
C602
C603
C604
C410
C605
C411
C606
C412
C607
C413
C414
C609
C415
C416
C417
C418
C419
C611
C612
C613
C614
C420
C615
C421
C422
C423
C424
C425
S401
C426
R858
C436
C437
C438
C1
R862
C517
R865
C5
R866
C442
C6
R867
C443
C444
C8
C445
C9
C447
JW201
JW202
JW207
JW208
JW209
JW400
Q301
JW212
Q303
JW214
JW215
JW216
JW217
D401
JW219
D403
D404
JW222
D601
L301
JW225
L302
JW226
JW227
JW230
JW231
JW232
JW234
JW235
D806
JW236
D807
JW237
JW240
JW245
JW246
JW247
JW250
JW253
JW256
JW257
JW258
JW259
JW260
JW261
JW456
JW262
JW263
JC408
JW264
JW265
JW266
JW268
JW269
FB501
JW270
JW271
R301
JW272
R302
R303
JW273
R304
JC418
R305
JC419
JW275
R306
R308
JW279
R116
FB704
R500
FB705
R501
FB706
R502
R503
R310
R504
JW281
R505
CN102
22
21
19
1
20
2
JW282
R506
JW283
R507
R508
JW284
R315
R121
JW285
L1
R509
R316
R122
L2
R317
R318
JW288
R319
R701
R702
L6
L7
L8
R510
CN301
R705
R511
R512
R707
R513
R320
R514
R708
R321
R709
R516
JW293
R517
JW294
R325
R519
JW296
JW297
R710
CN501
8
1
R71
1
JW299
R713
R520
R521
R716
R522
R523
C100
R524
C101
R525
C103
R528
R529
CN701
JC256
JC257
R530
C300
C301
R531
C302
R532
C303
R533
JC260
C304
R534
R535
JC261
C305
JC262
C306
R536
R537
JC264
C308
R538
R539
JC265
CL001
CL002
JC267
CL003
JC268
CL004
JC269
CL006
C502
CL007
R540
CL008
C504
CL009
C312
R542
C313
C507
R543
C508
R544
JC271
C315
R11
C316
R12
JC273
R13
JC274
C318
CL010
R14
C319
JC469
JC275
CL011
R15
C701
R549
CL012
R16
JC277
CL013
C703
CL014
C704
C510
CL015
X501
CL016
C512
X502
CL017
C513
C320
CL018
C514
R550
C321
CL019
R551
C322
R552
CAM001
C323
C518
C324
R554
R555
JC475
JC281
JC282
R556
C327
C328
C710
CL020
R558
C329
JC479
CL021
A001
C71
1
CL022
CL023
CL024
C520
JC289
CL025
C521
CL026
C522
CL027
C523
C330
CL028
CL029
R561
C332
R562
C333
R563
C334
JC290
R564
C335
JC291
R565
C336
R566
R560
C337
R567
CL030
R568
JC295
CL031
R1
R2
R3
R570
R571
R572
R573
R574
R575
R577
CL040
CL041
VR1
JW102
C158
R580
R581
R583
R584
JW300
R585
D101
JW301
D102
D103
R587
D104
R588
R589
D105
D106
D107
D108
D109
JW309
R591
D301
D302
R592
D303
R593
D1
10
D304
JW310
R594
Q401
JW31
1
R595
D306
Q402
JW312
R596
Q403
JW313
Q404
R598
Q405
JW315
R599
CL061
Q406
BCE
BCE
ECB
ECB
BCE
BCE
BCE
ECB
D116
JW316
Q407
D1
17
JW317
CL063
D1
18
JW318
CL064
Q409
D1
19
JW319
D501
CL065
JW126
CL066
CL067
D310
CL068
D31
1
CL069
D312
D313
D314
D315
D316
JW322
D317
D318
CL070
CL071
L402
CL072
CL073
CL074
L405
JW329
CL075
Q802
CL076
JW137
CL077
D320
JW138
CAM002
CL078
D321
CL079
D322
D323
JW523
Q807
D324
JW330
JW524
Q808
L601
L602
JW526
JW332
L603
JW334
JW335
JW529
CL081
JW336
CL082
JW339
JW147
JW148
JW533
JW340
JW341
JW342
JW343
JW344
JW345
CAM003
X1
JC103
JW347
JW348
JW349
JC106
JW350
JW351
JC301
JW352
JC302
JW353
JW354
JW355
D731
JC307
JW357
JW358
JC116
FB401
FB402
JW362
C12
FB403
JW363
C13
JC120
JW364
JC121
JW365
C16
JC123
JW367
C17
JW368
C18
JW369
C19
E,EA,MX,IND MODEL
AEP,UK,RU,AR MODEL
AEP,UK,RU MODEL
(AEP,UK,RU)
J401
(EXCEPT AEP,UK,RU)
J402
-2
R
-1
L
-4
R
-3
L
J801
(REMOTE IN)
REAR/SUB
AUDIO OUT
AUDIO OUT
FRONT
FLASH
PROGRAMMING
S401
RESET
FU601
16
19
18
17
8
1
9
1-882-749-
(11)
11
CD MECHANISM
UNIT
(MG-101N)
(2/2)
CD MECHANISM
UNIT
(MG-101N)
(1/2)
J1
(ANTENNA)
3
45
1
4
12
3
BCE
ECB
BCE
BCE
BCE
5
1
6
7
8
4
9
1
4
5
7
6
3
1
3
4
1
2
(Page 22)
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
19
19
• See page 24 for IC Block Diagrams.
4-4.  SCHEMATIC  DIAGRAM  – MAIN Section (1/3) –
12
A
6
B
8
E
14
9
4
3
F
D
H
7
2
10
I
G
11
C
5
13
1
1
MAIN BOARD 
(2/3)
MAIN
(3/3)
BOARD
2
IC B/D
IC B/D
1.3
3.3
(EXCEPT AEP,UK)
(AEP,UK)
3.1
7.2
3.1
7.1
14.4
7.2
7.2
4.4
4.1
4.1
4.1
4.1
4.3
7.1
7.1
14.4
7.1
3.2
7.2
3.2
13.9
13.9
8.5
3.3
6.1
10.5
14.4
14.1
4.9
0.6
14.4
0
5.4
0
3.1
3.3
0
14
13.7
13.7
0
4.9
4.9
AEP,UK,RU,AR MODEL
E,EA,MX,IND MODEL
AEP,
UK,RU
MODEL
AEP,UK,RU
MODEL
AEP,UK MODEL
5.4
2.7
0
0
0.6
0
AEP,UK,RU MODEL
AEP
,UK,RU MODEL
AEP,UK,RU
MODEL
3300
MAIN BOARD (1/3)
IC403
IC402
IC301
1000p
C328
0.22
C301
1A4-A2
D317
1
C321
1A4-A2
D321
16V
C336
R319
10k
1000p
C335
2.2
C315
1
C319
0.22
C305
1
C322
1
C324
25V
22
C303
1A4-A2
D310
16V
C312
10
47k
R315
1
C318
0.1
C337
1000p
C334
4.7k
R316
0.47
C333
1
C316
0.22
C330
1A4-A2
D302
1A4-A2
D304
0.22
C302
1
C320
1
C323
1A4-A2
D316
1A4-A2
D31
1
0.22
C300
1A4-A2
D312
0.22
C308
1A4-A2
D303
CN301
16P
1
FL+
2
RL+
3
RR+
4
FR+
5
AMP-REM
6
ANT-REM
7
ACC
8
GND
9
FL-
10
RL-
11
RR-
12
FR-
16
+B
13
TEL-ATT
14
ILL
15
TEST
17
+B
18
+B
19
+B
150
R308
0.22
C329
1A4-A2
D306
1A4-A2
D314
1A4-A2
D313
R320
47k
0.47
C332
1
C306
0.22
C304
1A4-A2
D315
R318
10k
S401
16V
47
C416
MA2J1
110GLS0
D401
10V
1000
C409
0.1
C407
C445
1000p
22
R429
100k
R401
PST8228UL
IC403
RESET
VOUT
VIN
NC
VSS
5
4
3
4
3
2
1
1
2
TK11133CSCL-G
IC402
+3.3V REG
CONT
GND
NOISE
VOUT
VIN
0
FB401
0.1
C402
0.1
C401
R862
220k
R858
220k
R815
1k
1k
R816
4.7k
R325
MA2J1110GLS0
D404
R321
1k
220
R303
220
R304
MA2J1110GLS0
D403
47k
R317
220
R305
220
R306
1A4-A2
D324
1A4-A2
D318
DRC5114E0L
Q802
BACK-UP CHECK
DRC5114E0L
Q409
MUTE DRIVE
DRA5114E0L
Q407
MUTE DRIVE
100
R301
100
R302
2SC4154TP-1EF
Q301
ACC DETECT
J801
2SC4154TP-1EF
Q808
BACK-UP CHECK
RKZ18B2KGP1
D807
RKZ18B2KGP1
D322
RKZ18B2KGP1
D320
47k
R310
47p
C327
6.3V
330
C41
1
DRC5144E0L
Q807
BACK-UP CHECK
D806
RKZ7.5B2KGP1
2SC4154TP-1EF
Q303
TEL-ATT DETECT
RKZ18B2KGP1
D323
RKZ18B2KGP1
D301
6.3V
C403
330
250uH
L301
1
2
10V
100
C447
IC301
1
TA
B
2
I2C_SIO
3
OUT
-FL-
4
I2C_SCK
5
OUT
-FL+
6
VP2
7
OUT
-RL-
8
P-GND1
9
OUT
-RL+
10
SVR
11
IN-RL
12
IN-FL
13
S-GND
14
IN-FR
15
IN-RR
16
BEEP
17
OUT
-RR+
18
P-GND3
19
OUT
-RR-
20
VP1
21
OUT
-FR+
22
STB
23
OUT
-FR-
24
P-GND4
25
DIAG
26
RST
27
ANT
-REM
28
CRES
29
AMP-REM
30
AUDIO+B(8.5V)
31
SER
VO+3.3V
32
GND
33
MECHA+6V
34
PA
N
EL
+B
35
VP
36
CBU
37
BU+B
16V
47
C313
L302
0
1
2
4
3
5
6
7
8
BUS1
BUS2
BUS3
BUS4
11
12
13
14
15
16
17
FB826
FB802
FB801
JC363
0
ACC
BEEP
STB
DIAG
RESET
I2C_SIO
I2C_SCK
ILL+B
RCIN0
RCIN1
BU_IN
TEL
RESET
FU601
10A
(REMOTE IN)
TDF8556AJ/N3
TDF8556AJ/N3/M5
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
FR–
11
L-CH
8
+
4
RR–
FL–
GND
RR–
BATT
FL+
2
7
6
RL+
8
FR+
7
AMP REM
REAR
6
16
ACC
10
FR+
+
RR+
–
2
BATT
L-CH
10
GND
1
8
14
14
16
9
1
4
RL–
1
4
ACC
7
R-CH
3
6
–
15
2
ANT REM
–
5
AMP REM
+
R-CH
2
RL+
+
13
4
5
FRONT
–
FL+
3
15
9
BATT
RL–
5
RR+
3
ANT REM
REAR
3
FL–
13
11
ACC
FRONT
6
8
7
FR–
1
5
GND
ANT REM
12
12
ATT
(Page 21)
(Page 20)
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
20
20
12
15
A
6
B
8
E
14
9
4
3
F
D
H
7
2
10
I
G
11
C
5
13
1
(3/3)
BOARD
MAIN
3
1
(1/3)
MAIN BOARD 
BOARD
4
MAIN
(3/3)
1 2
IC B/D
3.3
0
3
14.4
6.3
14.4
5.2
5.2
0.7
0.8
0.8
5.1
5.1
14.4
0.6
1.1
3.3
3
5.1
5.1
3.2
3.2
3.2
3.2
3.2
3.2
3.3
3.3
0
0
0
3
3
0
0
0
0
3
3.3
0
3.3
3.2
0
0
0
3
3.3
3.2
2.6
3
0
0
0
0
0
0
3.3
3.2
3.2
0
0
0
0
3.3
0
3.7
0
0
0
0.3
1.4
3.1
1.7
0.7
3.3
3
3
2.7
3.3
0
3.2
3.3
1.1
0
3.1
3.1
*
8
*
6
(AEP,UK,RU)
*
5
(EXCEPT AEP,UK,RU)
(EXCEPT EA)
*
2
*
4
(EXCEPT AR)
(EA/GT457UE)
(EXCEPT GT457UE)
(GT457UE)
(AR)
*
7
*
3
*
1
*
2
*
8
*
3
*
4
*
1
*
6
*
7
*
5
*
8
*
5
*
1
*
2
*
8
*
2
*
4
*
3
MAIN BOARD (2/3)
IC601
IC501
0.01
C510
100k
R561
100k
R528
0
R509
1k
R510
1k
R512
470
R570
100k
R519
100k
R513
100k
R532
10k
R536
100k
R533
10M
R501
220k
R508
18p
C508
22p
C507
100
R540
100k
R514
0.01
C513
1000p
C502
100
R539
0.5%
10k
R530
100
R503
0.5%
10k
R505
100
R502
0.5%
10k
R504
1000p
C512
1000p
C514
0.01
C523
0.01
C522
R599
R558
R507
R573
R538
R537
R549
R551
R550
100k
R574
R575
R524
R523
R552
100k
0.01
C504
R520
R506
10k
R500
10k
R534
100k
R531
100k
R584
R556
1k
R591
1k
R585
10k
R535
10k
R589
0
R517
100k
R567
0
R516
2.2k
R522
2.2k
R521
47p
C521
47p
C520
1
2
3
4
5
6
7
8
8P
CN501
RESET
CLK
BUSY
TXD
RXD
BU3.3V
FLASH_W
GND
R577
100k
7.92MHz
X501
100k
R571
CAM001
R560
100k
R562
100k
CL001
CL002
CL003
CL004
0
R542
0
R543
0
R555
0
R529
R581
1M
R583
100k
100k
R587
R588
100k
100
R592
100
R593
100k
R596
100
R598
100
R544
100k
R568
16V
C615
100
470
R611
10uH
L602
18k
R607
C604
4.7
0.1
C609
3.3k
R604
C603
150p
1
C61
1
16V
100
C600
0.047
C602
C612
10V
470
3.3k
R610
C605
0.1
IC601
BD9070FP-E2
USB VBUS POWER SUPPLY
1
VREGB
2
VIN
3
NCO
4
NCO
5
PGND
6
GND
7
RT
8
SYN/EN
9
HSDCTL
10
FLG
11
NCO
12
HSDSW
13
HSDSW
19
FB
14
NCO
15
VDD
16
VDD
17
OVP
18
INV
20
NCO
21
SW
22
SW
23
NCO
24
PV_IN
25
PV_IN
26
TA
B
27
TA
B
25V
100
C614
MA24D5000BS0
D601
R702
0
0.01
C704
100
R707
R710
100
R713
100k
R705
0
16V
10
C703
R708
0
BAT54ALT1G
D731
0
R701
0.01
C710
FB501
R566
100k
10V
100
C701
0
R716
470
R602
47uH
L601
0.033
C606
0.01
C711
28P
CN701
14 DR_6V
13 DR_GND
12 RXD
11 TXD
10 NC
9
CDM_ON
8
CD_ON
7
VBUS_ON
6
Z_MUTE
5
A_ATT
4
BU_3.3V
3
BU_GND
2
USB_GND
28
A_GND
27
VDD_3.3V
26
D_GND
25
NC
24
SP_DATA
23
SP_CLK
22
OPEN_REQ
21
EJECK_OK
20
X_FLASH
19
SYS_RST
18
WAKEUP
17
BU_CHECK
16
USB_GND
1
USB_D+
15
USB_D-
1000p
C518
100k
R565
R709
100k
L603
47uH
R554
100k
100k
R595
100k
R594
0.5%
820
R608
0.5%
2.2k
R603
2.2k
R609
0.5%
1
C613
47k
R601
C607
1
470
R605
470
R606
R525
100k
470
R511
32.768kHz
X502
JL001
JL002
JL003
JL004
JL005
JL006
JL007
100k
R572
IC501
R5F3650KBDZ99FA
SYSTEM CONTROL
1
LCD_SO
2
LCD_CLK
3
NOSE_SW
4
SIRCS
5
UNISO
6
UNISI
7
UNISCK
8
BYTE
9
CNVSS
10
XIN
11
XOUT
12
RESET
13
OSCOUT
14
VSS
15
OSCIN
16
VCC1
17
NMI
18
RC_IN1
19
BUIN
20
SYSRST
21
BUS_ON
22
MC_RX
23
NCO
24
MC_TX
25
NCO
26
SYNC_OUT
27
NCO
28
BEEP
29
I2C_SCK
30
I2C_SIO
31
FW_TXD
32
FW_RXD
33
FW_CLK
34
FW_BUSY
35
NCO
36
NCO
37
CD_ON
38
CDM_ON
39
WAKE_UP
40
Z_MUTE
41
EPM
42
MODELNAME_SEL0
43
MODELNAME_SEL1
44
MODELNAME_SEL2
45
MODELNAME_SEL3
46
CE
47
NCO
48
SA_DATAIN
49
SA_CLKOUT
50
USBON
51
VBUS_ON
52
USB_OVR
53
EXT
ATT_XEN
54
NCO
55
NCO
56
TELA
TT
57
ACC_IN
58
AT
T
59
DIAG
60
AMPSTB
61
CYRIL_SEL
62
VCC2
63
NCO
64
VSS
65
ILLUMI SEL
66
COLSW SEL
67
NCO
68
B-OUT
 SEL
69
AREASEL3
70
AREASEL2
71
AREASEL1
72
AREASEL0
73
R/S SW SEL
74
NCO
75
NCO
76
INITCOL_SEL
77
NCO
78
NCO
79
DEBUG_1
80
DEBUG_2
81 RE-IN1
82 RE-IN0
83 NCO
84 NCO
85 NCO
86 NCO
87 NCO
88 NCO
89 NCO
90 NCO
91 KEYACK0
92 KEYACK1
93 NCO
94 KEYIN1
95 KEYIN0
96 AVSS
97 RC_IN0
98 AVRH
99 AVDD
100 LCD_CE
CL006
CL007
CL008
CL009
CL010
CL011
CL012
CL013
CL014
CL015
CL016
CL017
CL018
CL019
CL020
CL021
CL041
CL024
CL025
CL031
CL040
CL026
CL028
CL022
CL027
CL029
CL023
CL030
JL008
RKZ6.8B2KGP1
D501
0
R563
100
R580
R564
100
R711
0
C517
0
R865
1k
R866
4.7k
R867
FB704
FB705
FB706
1
2
4
3
5
6
7
8
BUS1
BUS2
BUS3
BUS4
18
19
20
21
BUS5
BUS6
BEEP
RESET
VBUS_ON
MC_TX
MC_RX
SYS_RST
BU_IN
USB_OVER
USB_ON
SYNC_OUT
BUSY
CD_ON
CDM_ON
WAKE_UP
Z_MUTE
SA_DA
SA_CLK
LCD_CLK
VBUS_ON
CDM_ON
MC_TX
CD_ON
Z_MUTE
A_ATT
SYNC_OUT
TXD
STB
SIRCS
ACC
DIAG
USB_ON
TXD
LCD_DA
TA
MC_RX
USB_D+
CNVSS
EJECT_OK
RCIN1
CLK
RE1
SYS_RST
USB_D-
BU_IN
WAKE_UP
EJECT_OK
SA_CLK
SA_DA
NOSE_SW
RXD
I2C_SCK
I2C_SIO
I2C_SCK
CLK
RESET
USB_OVER
RXD
BUSY
CNVSS
RE0
I2C_SIO
TEL
A_A
TT
KEY1
KEY0
RCIN0
LCD_CE
UNIT
(MG-101N)
(1/2)
CD MECHANISM
(CHASSIS)
(
PROGRAMMING
FLASH
)
R520,538 100k
R549 100k
R564,573,575 100k
R524,558 100k
R523,599 100k
R507,556,574 100k
R551 100k
R506,537 100k
• See page 17 for Waveforms.   •  See page 24 for IC Block Diagrams.   • See page 26 for IC Pin Function Description of IC501.
4-5.  SCHEMATIC  DIAGRAM  – MAIN Section (2/3) –
(Page 19)
(Page 21)
(Page 21)
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