Schematic Diagram - Main Section (2/3) - Sony DSX-A40UE Service Manual

4-6.

SCHEMATIC DIAGRAM - MAIN Section (2/3) -

1 2 3
MAIN BOARD (2/3)
A
B
FB103
J101
FB102
(REMOTE IN)
C FB101
D
20
19
18
3
17
16
MAIN
15
BOARD
(3/3)
14
(Page 18)
E 12
11
10
F
CN101
8P
JL101
RESET
1
JL102
CLK
2
G JL103
RE_1
3
JL104
TXD (UCOM–›JIG)
4
(NC) JL105
RXD (JIG–›UCOM) 5
JL106
BU3.3V 6
JL107
FLASH_W 7
JL108
C502
GND 8
1
CN103 L501
H
15P 10uH
C504
GND 1
10
GND
2
RE_1
3
RE_0
4
KEY_1 5
KEY_0 6
SIRCS 7
I
KEY
LCD_DATA 8
BOARD
LCD_CE
9
LCD_CLK 10
ILL
11
PANEL_SW 12
GND 13
C505
NC 14 10
GND 15
J
C518
47
25V
R502
K
470
DSX-A40UE/A40UI/A42UI
• See page 13 for Waveforms. • See page 19 for IC Block Diagrams. • See page 21 for IC Pin Function Description.
4 5 6
R115
100k
FW_CLK
FW_BUSY
2 1
FW_TXD
IC105
FW_RXD
RESET SIGNAL
GENERATOR
CNVSS
IC105
PST8228UL
3 4
RE_1
RE_0
KEY_1
IC501
IC B/D
KEY_0
SIRCS
4 DC/DC CONVERTER
LCD_SO
IC501
R501 OZ529IGN
LCD_CE
C509
100
0.01
LCD_CLK 10.2 5.8
BST
1 16
VREF
5.1 1.5
LX
PANEL_DET 2 15
RT
14.3
VIN
3 14
GNDA
C515
0.01
3.3 5.8
EN_SYS
4 13
D501
SS_SYS
R509
DB2441600L
5.1 3.3 8.2k
5 USB_OUT
12
EN_USB
1 0
L502 FB_US
6 11
47uH VIC_USB
C516
5.1 1 0.1
7 USB_IN
10
ISET_USB
1 3.3
SYNC
8 9
FLT_USB
C510
R505
680p
39k
C508 C511 R503 R504 C513 C517 R513 R516
10 22 10k 220k 0.01 100 470 470
16V
7 8 9
C144
0.01
C143
0.01
C274
47p
R130
3.3k
RE_0
RE_1 R131
R132
1k
1k
R133
3.3k
Q102
LTA014EUBFS8TL
B+ SWITCH
3.2 3.3
R184
100k
0
C149 1000p
R185
100
R139 10k
KEY_1
R159
100
R140 10k
R160 100
KEY_0
R161
R143
100
C151 10k
1000p
C155 C150
0.1 1000p
R157 R162 R167
C152
470 1k 1k
0.01
C136
0.1
R172
100k
R168
100k
R803
C276
0
47p
R176
10M
C514
2.2
R177
X101
220k
32.768KHz
R506
100k
C157 C158
18p 22p
R507
82k
R508
82k
Note 1: When the KEY board is defective, exchange the
FRONT PANEL ASSY (Ref. No. FP1).
17 17
10 11 12 13
C252
0.01 R303
220k
R174
100
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54
76
77 NC
78 NC BT_RX(A50)
0
79 RE-IN0
0
80 RE-IN1
81 BT_MIC_ON(A50)
82 BT_RTS(A50)
83 BT_CTS(A50)
84 BT_RESET(A50)
85 BT_POWER(A50)
86 NC
IC101
0
87 SYS_ON
3.2
88 RCIN1 SYSTEM CONTROLLER
3.3
IC101
89 KEYACK0
R5F3650KCDZ94FB
3.3
90 KEYACK1
91 NC
3.3
92 KEYIN1
3.3
93 KEYIN0
94 AVSS
3.3
95 RC_IN0
3.3
96 AVRH
3.3
97 AVDD
0
98 LCD_CE
0
99 LCD_SO
3.3 LCD_CLK
100
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
2
R169
100 R175
100k
3
X102 R181
R180
7.92MHz 1M
0
C160
10
Note 2: When IC101 on the MAIN board is replaced, the destination setting is necessary. Refer to "NOTE OF
REPLACING THE COMPLETE MAIN BOARD OR SYSTEM CONTROLLER (IC101)" on page 4.
DSX-A40UE/A40UI/A42UI
14 15 16
R198 R202 C161
100k 100k 0.01 R804
0
R194 100k
R222 47k
EN_SYS
R203
100
R216
53 52 51
10k
R204
100
3.3 FLT_USB
50
R206
FLT_USB NC 49
100
3.3 EN_USB
EN_USB 48
R207 100
3.3 HIT2_RST
HIT2_RESET 47
R208 100
2.5 HIT2_SCL
HIT2_SCL 46
R209 100
2.3 HIT2_SDA
HIT2_SDA 45
3.2
CE 44
R212
CL014
DEBUG_4 43 100k
CL013
DEBUG_3 42
CL012
DEBUG_2 41
R213
CL011
DEBUG_1 40
100k
0
EPM 39
R219
NC 38
100k
NC 37
NC 36
NC 35
NC 34
R210
NC 33
100
0
FW_BUSY 32
0 R214 100
FW_CLK 31
R211 100
3.2
FW_RXD 30
3.2 R220
FW_TXD 29 100k
R215
NC 28 100
R221
NC 27 100k
0
BEEP 26
R335
47k
23
24
25
26
(Page 16)
R390
100
R101
100k
2
MAIN
BOARD
(1/3)