Schematic Diagram -Main Section (3/3) - Sony CDX-GT48UM Service Manual

4-6. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
1 2
A
MAIN BOARD (3/3)
CN701
28P
WAKE_UP 28
B
BU_CHECK 27
OPEN_REQ 26
EJECT_OK
25
A_3.3V
24
A_GND
23
AU_RCH
22
AU_GND
21
AU_LCH
20
A_ATT 19
CDM_ON 18
C
CD_ON 17
DR_GND
16
CD MECHANISM
DR_6V
15
UNIT
(MG-101Y)
USB_GND
14
(2/2)
AUDIO_8.5V
13
RXD(MC_BUS)
12
TXD(MC_BUS)
11
D_GND 10
Z/Y_CHECK 9
Z-MUTE 8
D
VBUS_ON
7
NCO
6
BU_GND
5
BU_3.3V
4
SYS_RST
3
NCO
2
NCO 1
E
Q502
L501 TPC6108(T5RSONYF,M
47uH
USB POWER SWITCH
F501
2A
F
4 5 6
S D D
G D D
3 2 1
G
IC501
DC/DC CONVERTER
R501
56k
0
H
Q501
RT1N141C-TP-1
USB POWER
CONTROL
3.3
D502
MA2J1110GLS0
I
J
CDX-GT48UM/GT480U/GT480US/GT484US
• See page 17 for Waveforms.
3 4 5
R717
0
C701
C704
100 FB701
0.01
2.2uH
10V
WAKE_UP
R701 0
BU_IN
R703 100k
C101 C201
R201
1k 560p 560p
FB301
R101 1k
CDM_ON
R704 0 CD_ON
C702 C705 C706 R713
22 16V 0.01 0.01 100k
FB702
MC_TX
R706 100 MC_RX
R707 100
R712 0
Z_MUTE
VBUS_ON
R709
R714
100
0
C703
C707
10 16V
0.01
FB705 FB707
R710 100k
D701
LBAT54ALT1G
3.3
Q701
0
RT1N141C-TP-1 XFLASH
FLASH
PROGRAMMING
BUFFER
Q503
RSQ035P03TR
L502
IC503
SWITCHING
68uH
REGULATOR NJM2387ADL3(TE2)
R508
0
4 5 6
S D D
1 2 3 4 5
R511
1.5k
G D D
3 2 1
C506
470p
R520 R521
10k 3.3k
IC B/D
R512 0.5% 0.5%
C521
0
470p
C516 0.1
IC501 C518
TPS40200DRG4 220 10V
8 7 6 5
1 2 3 4
R504
0
68k
C514
330
10V
2.6
C505 R514
C508
C507 330k
470p 1500p
R510
1
100k
C509
15p
IC502
TC7WH123FU(TE12R)
R515 10k
0
A VCC
R513 10k
1.4
R505
B Rx/Cx
1k
3.3
CLR Cx
GND Q
IC502
DC/DC CONVERTER
CONTROL
• See page 26 for IC Block Diagrams. • See page 27 for IC Pin Function Description.
6 7 8 9
MAIN BOARD (1/3)
2
SYSRST
3.3
3.3
Q402
0
RT1P141C-TP-1
FLASH
PROGRAMMING
BUFFER
80
81 NCO
R465
TU_ATTIN
82
BU_IN 0 2.8
BU_CHECK
83
R405
DAVN
84
220k
85 NCO
86 NCO
C413 87 NCO
1000p
88 NCO
C416
89 NCO
0.01
3.3
90 VCC
VSS
91
1.9
X401
OSC_IN
92
7.92MHz
1.2
OSC_OUT
93
R410
94 NCO
470
3.2
95 SIRCS
96 NCO
IC B/D 0
97 BEEP
0
R467 R407
98 ZAPPIN
IC503
SYNC_OUT 0 2.2k
1.7
99 SYNC_OUT
DD_ON
3.3
USB POWER
DD_ON
100
CONTROL SWITCH
R408
100k
1
R503
12k
Q504,505
USB OVER CURRENT
DETECT
D512
MA2J1110GLS0
D511
MA2J1110GLS0
0.1
C519
1
3.1
3.3
R519
2.6
1k
C515
470p
C517
0.9
L503
0.1
10uH
IC B/D
C523 R523 R524 R525
100
1k 1k 1k
10V
21 21
CDX-GT48UM/GT480U/GT480US/GT484US
10 11 12
(Page 19)
0
R446
R402 100k
100k
C429
0.01
R445
100k
79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
LCD_SCK
LCD_SO
LCD_CE
EXTATT_XEN
KEY_ACK1
KEY_ACK0
IC401
VSS
SYSTEM CONTROL
NCO
NCO
IC401
RC_IN0
MB90F882
PF-G-105E1 KEY_IN0
3
KEY_IN1
SA_IN
VSM
QUALITY
AVSS
RC_IN1
2
AVRH
AVCC
ATT
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
R466
0
C436 0.01 JL035
JL034
JL033
CAM001
JL032
JL031
C435 0.1 JL036
JL030
C434 0.01
JL029
13 14 15
29
30
32
33
34
3.1
Q401
35
RT1N141C-TP-1
FLASH
PROGRAMMING
BUFFER
FM(200k)
AM(10k)
FM(50k)
-2 -1
AM(9k)
S402
( )
FREQUENCY
SELECT
R444 2.2k LCD_CLK
3.2
50
R443 2.2k LCD_DATA
3.2
49
0.2 R442 2.2k LCD_CE
48
3.3
47
3.3
46
3.3
45
44
MAIN
3
43 R441
BOARD
C428 10k 0.5%
1000p ( 2 / 3 )
42
3.3 RC0
(Page 20)
41
3.3 KEY0
40
3.3 R438 100 KEY1
39
0 R437 100
38
0.5 R436 100
37
R439
R440
36 10k 10k
0.5% 0.5%
35
3.2 RC1
34
R435
3.3
R434
33 100
100k
3.3
32
0
31
39
40
41
CN401
8P
R464 100
1 RESET
R463 100
2 CLK_IN
R462 100
UART_CLK
3
R461 100
Ucom-TX(CD-RX)
4 FLASH
R460 100 PROGRAMMING
Ucom-RX(CD-TX)
5
3.3V
6
R459 100
FLASH_W
7
GND
8