Schematic Diagram - Main Section (2/3) - Sony DSX-A50BT Service Manual

DSX-A50BT
5-4.

SCHEMATIC DIAGRAM - MAIN Section (2/3) -

1 2 3
MAIN BOARD (2/3)
A
B
C
14
13
12
D
11
10
1
9
8
MAIN
7
BOARD
(1/3)
6
(Page 17)
5
4
E
3
2
1
CN101
8P
JL101
RESET 1
JL102
F FW_CLK
CLK 2
JL103
FW_BUSY
BUSY 3
JL104
FW_TXD
TXD(UCOM->JIG) 4
JL105
(NC) FW_RXD
RXD(JIG->UCOM) 5
JL106
BU3.3V 6
JL107
CNVSS
FLASH_W 7
JL108
GND 8
IC105
G
RESET SIGNAL
GENERA TOR
IC105
PST8228UL
C502
1
H
R501
100
I
L501
10uH
C509
0.01
J
C504 C505
10 10
L502
47uH
K
C510
680p
C518 R502 C51 1
47 470 22
25V
DSX-A50BT
• See page 16 for waveforms. • See page 26 for IC Block Diagrams. • See page 27 for IC Pin Function Description.
4 5 6
R804
0
BT_TX
C143
0.01
C144
0.01
R138
100k
R149
100k
R130
3.3k
BT_RX
RE_0
RE_1
R132
R133
3.3k
BT_MIC_ON
Q102
DRA51 14E0L
BT_RTS
B+ SWITCH
R184
BT_CTS
100k
3.3 3.3
BT_RESET
BT_POWER
0
C149
R1 15
KEY_1
100k
KEY_0
C150
1000p
2 1
C151
1000p
C152
0.01
C155
3 4
C136
0.1
0.1
EN_SYS
SYNC
EN_USB
FLT_USB
IC B/D
IC501
R175
100k
DC/DC CONVERTER
3
IC501
OZ529IGN
C514 C157
2.2 18p
10.1 5.7
1 BST
16
VREF
R506
100k
5.1 1.5
2 LX
15
RT
14.1
3 VIN
14
GNDA
C515
0.01
3.3 5.7
4 EN_SYS
13
C158
SS_SYS
22p
5.1 3.3
5 USB_OUT
12
C516
EN_USB
0.1
0.9 0
6 FB_US
11
VIC_USB
5.1 0.9
7 USB_IN
10
ISET_USB
R507
1 3.3 82k
8 SYNC
9
FLT_USB
R509
8.2k
4
R505
39k
C508 R503 R504 C513 C517 R513 R516
10 10k 220k 0.01 100 470 470
16V
7 8 9 10
C252 R303 R179
0.01 220k 100
R152 R174
100 100
75 74 73 72 71 70 69 68 67 66 65 64
R165
100
3.3
76 BT_RX(A50)
R131 1k
77 NC
78 NC
0
1k 79 RE-IN0
0
80 RE-IN1
R158 100
3.3
81 BT_MIC_ON(A50)
R153 100
0
82 BT_RTS(A50)
R154 100
0
83 BT_CTS(A50)
R155 100
3.3
84 BT_RESET(A50)
R156 100
3.3
85 BT_POWER(A50)
86 NC
IC101
0
87 SYS_ON
R185 100
3.3
88 RCIN1 SYSTEM CONTROLLER
1000p
3.3
89 KEY ACK0
R5F3650KCDZ98FB
R139 10k
3.3
90 KEY ACK1
R159
91 NC
100
3.3
92 KEYIN1
R160 100
3.3
93 KEYIN0
94 A VSS
3.3
95 RC_IN0
R143 R161 3.3
100 96 A VRH
10k
3.3
97 A VDD
0
R140
98 LCD_CE
10k
0
99 LCD_SO
3.3
100 LCD_CLK
R157 R162 R167
470 1k 1k
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
R172
100k
R169
R168 100
100k
R176
10M
X101 R177 2
32.768kHz 220k
1
R180
0
18 18
11 12 13
R194
100k
R198 R202
C161
100k 100k
0.01
R203
100 R222
47k
63 62 61 60 59 58 57 56 55 54 53 52 51
R216 R221
10k 100k
R204
100
3.3
50
FLT_USB
R206
49
100
NC 3.3
EN_USB 48
3.3 R207 100
HIT2_RESET 47
R208 100
2.6
HIT2_SCL 46
R209 100
2.4
HIT2_SDA 45
3.3
CE 44
R212 R220
DEBUG_4 43 CL014 100k 100k
CL013
DEBUG_3 42
CL012
DEBUG_2 41
R213
DEBUG_1 40 CL01 1
100k
0
EPM 39
NC 38
IC101
NC 37
NC 36
R219
NC 35
100k
NC 34
R210
NC 33
100
0
FW_BUSY 32
R214 100
0
FW_CLK 31
R21 1 100
0
FW_RXD 30
0
FW_TXD 29
R215
NC 28 100
NC 27
0
BEEP 26
R390
100
R803
0
R181
X102
1M
7.92MHz
Note: When the system controller (IC101) in this unit is replaced, the des-
tination setting is necessary. Refer to "NOTE THE MAIN BOARD
OR SYSTEM CONTROLLER (IC101) REPLACING" (page 4).
14 15 16 17
FLT_USB
EN_USB
HIT2_RST
HIT2_SCL
HIT2_SDA
FW_BUSY
FW_CLK
FW_RXD
FW_TXD
28
3
29
30
MAIN
31 BOARD
(3/3)
32
(Page 19)
CN103
15P
KEY_GND
1
KEY_GND
2
RE_1
RE_1
3
RE_0
RE_0
4
KEY_1
KEY_1
5
KEY_0
KEY_0
6
A
SIRCS
SIRCS
7
LCD_SO
LCD_DA T A
8
KEY
LCD_CE
BOARD
LCD_CE
9
CN001
LCD_CLK
10 LCD_CLK (Page 25)
ILL
11
P ANEL_DET
P ANEL_SW
12
13 GND
14 NC
15 GND