CDX-GT48UM/GT480U/GT480US/GT484US
CDX-GT48UM/GT480U/GT480US/GT484US
21
21
4-6. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
• See page 17 for Waveforms. • See page 26 for IC Block Diagrams. • See page 27 for IC Pin Function Description.
H
B
2
A
C
I
E
F
D
11
12
5
4
7
14
10
1
13
J
3
9
8
15
G
6
2
3
MAIN BOARD (1/3)
2
3
( 2 / 3 )
BOARD
MAIN
IC B/D
IC B/D
IC B/D
3.3
0
0
14.4
14.4
14.4
14.4
14.4
5.7
14.4
12.7
5.7
5.7
5.7
14.4
14.4
12.7
0.5
3.9
1.3
0.7
5.7
3.3
5.2
1.3
2.6
0
0.1
3.1
3.3
2.6
0.9
0
1.4
3.3
3.3
0
3.3
0
3.1
0
3.3
0
0
0
3.3
0
3.3
3.1
3.1
3.3
0
3.3
0
3.3
0.1
3.3
0
1.9
0
3.2
0
3.3
0
1.6
3.2
3.3
1.2
3.3
0
0
0
3.1
1.8
3.3
0.1
1.2
1.7
0
0
2.8
0.5
0
3.3
3.3
3.3
0.2
3.2
3.2
3.3
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
0
3.3
3.3
0
0
3.3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IC401
MB90F882
PF-G-105E1
CYRIL_SEL
B-OUT_SEL
COL_SW
ILLUMI_SEL
NCO
NCO
NOSE_SW
NCO
NCO
NCO
RE_IN0
RE_IN1
X_OUT
X_IN
VCC
VSS
C
UNISI
UNISO
UNISCK
USB_ON
I2C_SIO
I2C_SCK
USB_OVER
BUS_ON
SYS_RST
CD_ON
CDM_ON
ACC_IN
TEL_A
TT
ATT
AVCC
AVRH
RC_IN1
AVSS
QUALITY
VSM
SA_IN
KEY_IN1
KEY_IN0
RC_IN0
NCO
NCO
VSS
KEY_ACK0
KEY_ACK1
EXTATT_XEN
LCD_CE
LCD_SO
LCD_SCK
MD2
MD1
MD0
RESET
AREA_SEL2
AREA_SEL1
AREA_SEL0
W
AKE_UP
MC_RX
MC_TX
CLK_IN
Z_MUTE
NCO
TEST
VCC
VSS
NCO
AMP_STB
DIAG
VBUS_ON
SA_OUT
SA_CLK
NCO
TU_A
TT
NSMASK
RDS_ON
FLASH_EN0
FLASH_EN1
NCO
NCO
NCO
TU_ATTIN
BU_CHECK
DAVN
NCO
NCO
NCO
NCO
NCO
VCC
VSS
OSC_IN
OSC_OUT
NCO
SIRCS
NCO
BEEP
ZAPPIN
SYNC_OUT
DD_ON
0.1
C517
16V
120
C502
8765
4
3
2
1
TC7WH123FU(TE12R)
IC502
A
B
CLR
GND
Q
Cx
Rx/Cx
VCC
8
7
6
5
4
3
2
1
TPS40200DRG4
IC501
RC
SS
COMP
FB
GND
DR
V
ISNS
VCC
0.5%
100k
R516
RT1N141C-TP-1
Q501
MA24D5000BS0
D504
15p
C509
1k
R519
1.5k
R511
1
C503
100k
R510
0.1
C504
330k
R514
0.1
C501
1k
R505
470p
C505
MAZ8120GMLS0
D503
68k
R504
470p
C506
1
C507
10k
R513
56k
R502
1500p
C508
470p
C515
56k
R501
0.5%
22k
R517
R717
0
100k
R710
16V
22
C702
0.01
C707
100
R707
0.01
C705
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
28P
CN701
NCO
NCO
SYS_RST
BU_3.3V
BU_GND
NCO
VBUS_ON
Z-MUTE
Z/Y_CHECK
D_GND
TXD(MC_BUS)
RXD(MC_BUS)
AUDIO_8.5V
USB_GND
DR_6V
DR_GND
CD_ON
CDM_ON
A_ATT
AU_LCH
AU_GND
AU_RCH
A_GND
A_3.3V
EJECT_OK
OPEN_REQ
BU_CHECK
WAKE_UP
100
R709
2A
F501
R41
1
100k
R417
100k
100k
R419
10k
R421
10k
R424
0.01
C417
0.01
C418
32.768kHz
X402
R426
2.2k
2.2k
R427
100k
R432
100k
R433
100
R435
100
R436
0.5%
10k
R441
0.5%
10k
R440
0.5%
10k
R439
100k
R434
100
R438
100
R437
1000p
C425
1000p
C426
1000p
C427
1000p
C428
100k
R448
100k
R447
100k
R446
100k
R454
R452
100k
100
R455
10k
R456
220k
R405
1000p
C413
100k
R408
2.2k
R407
100k
R406
10uH
L503
1k
R523
1k
R524
1k
R525
100k
R703
100k
R713
R415
100k
0
R508
1
2
3
4
5
6
7
8
8P
CN401
RESET
CLK_IN
UART_CLK
Ucom-TX(CD-RX)
Ucom-RX(CD-TX)
3.3V
FLASH_W
GND
100k
R428
100k
R430
100k
R431
100
R409
100
R420
100
R422
100
R423
10k
R515
100
R706
0
R704
47uH
L501
68uH
L502
0.01
C706
0
R701
RT1P141C-TP-1
Q402
100k
R402
RT1N141C-TP-1
Q701
JL029
JL030
JL031
JL032
JL033
JL034
JL035
JL036
560p
C201
560p
C101
1k
R101
1k
R201
RT1N141C-TP-1
Q401
10V
100
C701
2.2uH
FB701
0.01
C421
0.01
C424
0.01
C423
0.01
C704
0.01
C416
0.01
C429
LRB751V
-40T1G
D401
LBAT54ALT1G
D701
10V
330
C514
1
2
3
4
5
NJM2387ADL3(TE2)
IC503
R
T1N141C-TP-1
Q504
R
T1N141C-TP-1
Q505
MAZ8039GLLS0
D510
1
C519
0.1
C516
0.1
C513
MAZ8056GMLS0
D505
10V
C523
100
10V
220
C518
12k
R503
0.5%
56k
R518
0.5%
10k
R520
0.5%
3.3k
R521
FB705
0
R512
100
R462
100
R460
100
R464
100
R463
100
R459
100
R461
0
R465
0.1
C435
1
C422
27p
C419
33p
C420
0.01
C434
0.01
C436
16V
10
C703
6
5
4
3
2
1
D
D
G
S
D
D
TPC6108(T5RSONYF,M
Q502
6
5
4
3
2
1
D
D
G
S
D
D
RSQ035P03TR
Q503
X401
7.92MHz
470
R410
FB702
0
R466
R714
0
R712 0
MA2J1110GLS0
D502
MA2J1110GLS0
D511
MA2J1110GLS0
D512
R467
0
470p
C521
2.2k
R443
2.2k
R444
2.2k
R442
100k
R468
FB707
FB301
29
30
32
40
41
13
14
15
16
17
18
21
22
23
24
25
26
27
28
12
33
34
35
39
CAM001
S402
R445
100k
R414
100k
MC_TX
MC_RX
RE0
RE1
LCD_CE
Z_MUTE
W
AKE_UP
NOSE_SW
CLK_IN
WAKE_UP
VBUS_ON
AT
T
CD_ON
CDM_ON
SYSRST
ACC
DD_ON
VBUS_ON
UAR
T/CLK
XFLASH
I2C_SCK
BU_IN
Z_MUTE
MC_RX
MC_TX
CD_ON
SYNC_OUT
I2C_SIO
KEY1
KEY0
SYNC_OUT
CDM_ON
LCD_DATA
LCD_CLK
RC0
ZAPPIN
SA_CLK
SA_DA
UAR
T/CLK
XFLASH
MC_TX
MC_RX
CLK_IN
XFLASH
SYSRST
SA_IN
RC1
VIN
CONT
Vout
Vadj
GND
MAIN BOARD (3/3)
(2/2)
(MG-101Y)
UNIT
CD MECHANISM
BU_IN
PROGRAMMING
BUFFER
FLASH
BUFFER
PROGRAMMING
FLASH
FLASH
SYSTEM CONTROL
IC401
USB OVER CURRENT
IC503
DETECT
Q504,505
USB POWER
CONTROL SWITCH
CONTROL
IC502
DC/DC CONVERTER
USB POWER
CONTROL
IC501
DC/DC CONVERTER
USB POWER SWITCH
SWITCHING
REGULATOR
PROGRAMMING
FLASH
BUFFER
PROGRAMMING
DD_ON
( )
SELECT
FREQUENCY
-1
FM(200k)
AM(10k)
FM(50k)
AM(9k)
-2
SIRCS
(Page 20)
(Page 19)