Sony DSX-A40UE / DSX-A40UI / DSX-A42UI Service Manual ▷ View online
DSX-A40UE/A40UI/A42UI
9
SECTION 3
DISASSEMBLY
2 Insert a flathead screwdriver between the
cover and the chassis and raise the cover.
2 Insert a flathead screwdriver between the
cover and the chassis and raise the cover.
5 cover
4 five claws
3 two bosses
3 two bosses
1 fuse (blade type) (auto fuse)
(10A/32V)
(FU101)
•
This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
3-2. FUSE (BLADE TYPE) (AUTO FUSE) (10A/32V) (FU101), COVER
3-2. FUSE (BLADE TYPE) (AUTO FUSE) (10A/32V) (FU101), COVER
(Page
(Page
9)
3-3. SUB PANEL BLOCK
(Page
(Page
10)
3-4. MAIN
BOARD
(Page
10)
SET
FRONT PANEL ASSY
Note: Illustration of disassembly is omitted.
Note: Illustration of disassembly is omitted.
DSX-A40UE/A40UI/A42UI
10
3-3. SUB PANEL BLOCK
3-4. MAIN BOARD
2 two claws
1 two claws
1 two claws
3 sub panel block
1 screw
(PTT2.6
u 8)
1 screw
(PTT2.6
u 8)
2 two ground point screws
(PTT2.6
u 6)
3 MAIN board
Note: When the complete MAIN board is re-
placed, the destination setting is necessary.
Refer to “NOTE OF REPLACING THE
COMPLETE MAIN BOARD OR SYSTEM
CONTROLLER (IC101)” on page 4.
Refer to “NOTE OF REPLACING THE
COMPLETE MAIN BOARD OR SYSTEM
CONTROLLER (IC101)” on page 4.
DSX-A40UE/A40UI/A42UI
DSX-A40UE/A40UI/A42UI
11
11
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM - MAIN Section -
1
9
J302
CN102 (1/2)
69
1
UDP1
LFOUT
4
DACOUT_L
83
CP-SDA
82
CP-SCL
POWER AMP
IC304
12
5
IN_FL
FL+
FL–
FL+
3
FL–
9
RL+
7
RL–
11 IN_RL
2
LROUT
56
ATT
68 UDM1
3 LVRIN
13 L3_IN_P
3
2
1
D+
D–
VBUS
USB VBUS
CN201
14 L3_IN_N
X12OUT
SDA
9 L1_IN
54
20
45 HIT2_SDA
46 HIT2_SCL
47 HIT2_RESET
46 HIT2_SCL
47 HIT2_RESET
R-CH
J304
J303
(ANTENNA IN)
AUX
TU252
TUX-DSP03 (TUNER UNIT)
RF_ANT_IN
AUDIO_OUT_L
AUDIO_OUT_R
SDA
SCL
RSTN
R-CH
SIFDO
SDI
53
22
SIFDI
SDO
52
21
SIFCK
SCK
55
19
SIFCE
CE
22
MUTE
16
AC_GND
4
STBY
56
17
BUSYB
BUSY
86
16
CMDERR
CMD_ERR
62
23
USBINS1
USB_IN
47
25
SMON1
WDT_MON
51
18
RESETB
SYSRST
LINE AMP
IC302
EEPROM
IC202
MUTING
Q305
MUTING
Q303
X201
12MHz
75
2
SCL
6
74 X12IN
CENTER VOLTAGE
GENERATOR
IC303
+8.5V
MUTING
CONTROL
Q109, 110
57
AMP_MUTE
26
BEEP
58
AMPSTB
R-CH
4
12
FR+
FR–
2
10
RL+
RL–
R-CH
R-CH
3
11
RR+
RR–
R-CH
R
REAR
AUDIO OUT
L
MUTING
SWITCH
SWITCH
Q304
: USB
: TUNER
: AUX
SIGNAL PATH
: AUDIO
R-ch is omitted due to same as L-ch.
USB CONTROLLER, INPUT SELECTOR,
AUDIO DSP, ELECTRICAL VOLUME
IC201
SYSTEM CONTROLLER
IC101 (1/2)
DSX-A40UE/A40UI/A42UI
DSX-A40UE/A40UI/A42UI
12
12
4-2. BLOCK DIAGRAM - DISPLAY/POWER SUPPLY Section -
REGULATOR
IC401
DC/DC CONVERTER
IC501
5
8
VDD (BACKUP5V)
VCC
9
FL
T_USB
12
EN_USB
4
EN_SYS
8
SYNC
16
18
CN102 (2/2)
3
VIN
9
VCC1
13
AMP12V
+B
FU101
19
5
AMP-REM
3 AUDIO 8.5V
2 AUDIO_EN
2 AUDIO_EN
6
ANT-REM
7
ACC
SYSTEM CONTROLLER
IC101 (2/2)
J101
(REMOTE IN)
X101
32.768kHz
88 RCIN1
80 RE-IN1
79 RE-IN0
79 RE-IN0
1 NOSE_SW
9 XOUT
8 XIN
2 SIRCS
92 KEYIN1
93
93
87
KEYIN0
SYS_ON
95 RC_IN0
99 LCD_SO
100 LCD_CLK
98 LCD_CE
89
FLT_USB
74
AUDIO_EN
73
SYS_EN
10
RESET
90
KEYACK0
KEYACK1
KEY BOARD
LCD_DATA
LCD_CLK
LCD_CE
SIRCS
KEY_1
KEY_0
KEY_0
RE_1
RE_0
RE_0
PANEL_SW
X102
7.92MHz
11 OSCOUT
13 OSCIN
+3.3V
REGULATOR
IC102
RESET SIGNAL
GENERATOR
IC105
B+ SWITCH
Q102
SYS+3.3V
+5V
REGULATOR
IC603
TU+5V
59
ILL_ON
+9V
REGULATOR
IC402
ILL+9V
AUDIO+8.5V
15 REG 3.3V
10 REG_EN
10 REG_EN
72
AMP_REM
48
EN_USB
24
SYNC_OUT
51
EN_SYS
50
12 AMP_EN
2 LX
7
USBIN
5 USBOUT
VDD+3.3V
USB VBUS
ACC_IN 55
BU_IN 66
BU B+
BU+3.3V
D404
D107
D106
BATTERY
CHECK
Q103
ACCESSORY
CHECK
Q106
BACK UP
VOLTAGE DETECT
Q101, 104
Click on the first or last page to see other DSX-A40UE / DSX-A40UI / DSX-A42UI service manuals if exist.