Read Sony DSC-U20 (serv.man2) Service Manual online
DSC-U20
COVER
COVER
3. BLOCK DIAGRAMS
3. BLOCK DIAGRAMS
3-7
3-8 E
3-4. POWER BLOCK DIAGRAM (2/2)
( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located.
PD-174 BOARD
FP-533 FLEXIBLE
BOARD
BOARD
FP-532 FLEXIBLE
BOARD (2/2)
BOARD (2/2)
SL-59 FLEXIBLE BOARD
CD-425 FLEXIBLE BOARD
SW-376 FLEXIBLE BOARD
OP-17 FLEXIBLE BOARD
ST-79 BOARD
TY-15 BOARD (2/2)
DD-182 BOARD (2/2)
IC401
HI CONTROL
(4/4)
CN401
48
67
28
D402
VL 3V
FAST CHARGE
BATT SENS
72 USB UNREG SW
76 SYS DD ON
22 XCS DDCON
21 UNREG SCK
20 UNREG SO
SYS DD ON
XCS DDCON
UNREG SCK
UNREG SO
CN901 (2/2)
66 DD CON SENS
68 ACV SENS
78
46
USB PWR ON
BATT UNREG
DD CON SENS
EVER 4.0V
EVER 3.0V
ACV UNREG
05
CAM DD ON
D 2.8V
Q901
D902
(MS ACCESS)
Q501, 502
Q503
T502
D502
Q508
Q504
Q201
Q902, 903
CN904
6
BT480
LITHIUM
BATTERY
C601
CHARGING
CAPACITOR
IC402
VIN
VRO
8
VIN
2
CE
4
VOUT
6
7
VOUT 3
VBAT 3
INITIAL RESET, BACK UP VCC
(4/4)
IC403
3.3V REG
(4/4)
VIN
2
CE
5
VOUT 3
IC606
USB 3.1V REG
(2/4)
VIN
2
2
1
VOUT 3
IC605
USB 1.5V REG
(2/4)
BackUp Vcc
L401
40
37
36
35
42
43
41
44
39
38
38
SYS DD ON
XCS DDCON
UNREG SCK
UNREG SO
CN001 (2/2)
BATT UNREG
DD CON SENS
EVER 4.0V
EVER 3.0V
ACV UNREG
12
15
16
17
FL –VO
24
FL –VO
28
10
9
11
8
USB UNREG SW
FAST CHARGE
46
45
USB UNREG SW
FAST CHARGE
6
7
CN903
M 5V
ST UNREG
ST UNREG
9
10
4
8
F SENS VCC
MS VCC
D 2.8V
CAM 15V
CAM –7.5V
TG3V
D 2.8V
18
1
ı
3
CN902
13
14
14
PANEL 13.5V
23
22
22
PANEL 13.5V 29
30
PANEL 2.8V
PANEL 2.8V
21
20
20
PANEL 2.8V 31
32
M 5V
17
16
16
M 5V 35
36
A 2.8V
A 2.8V
14
13
13
A 2.8V 38
39
CAM 15V
7
6
6
CAM 15V 45
46
CAM –7.5V
9
8
8
CAM –7.5V 43
44
D 2.8V
19
18
18
D2.8V 33
34
ST UNREG
3
ı
1
ST UNREG 49
ı
51
D 1.5V
EVER 4.0V
D 1.5V
12
ı
10
D 1.5V
CAM DD ON
15
CAM DD ON
37
BUZZER 15V
BUZZER 15V
51
BUZZER 15V
1
40
ı
42
A
POWER (1/2)
(PAGE 3-6)
B
IC204
SHUTTER DRIVE,
FOCUS DRIVE
(3/4)
L202
L501
CL616
ı
CL622
CL501
ı
CL507
CL636, 637
CL521, 522
CL641
CL526
CL623
CL508
CL631
CL516
CL536, 537
CL606, 607
CL531
ı
CL533
CL601
ı
CL603
3
4
5
L201
L602
IC206
IRIS DRIVE,
HALL AMP
(3/4)
IC602
CAMERA DSP,
MAIN CPU
(1/4)
IC202
IRIS DRIVE,
HALL BIAS/GAIN
CONTROL
(3/4)
IC604
EEPROM
(2/4)
L604
L605
L601
IC401
LCD DRIVER
IC461
FRONT LIGHT
CONTROL
L401
L402
L403
FB202
FB603
L901
L904
L301
FB902
FB301
IC603
16M FLASH ROM
(2/4)
IC101
CAMERA
MODULE
MODULE
(2/2)
IC302
CCD IMAGER
(1/2)
FB602
CAM DD ON 228
STRB ON
STRB ON
STB CHARGE
XSTB FULL
STB CHARGE
XSTB FULL
STB CHG
XSTB FULL
STB CHARGE
XSTB FULL
STRB ON 107
MS PWR ON
MS PWR ON 234
M 5V
TRANS
DRIVE
Q505 - 507
FLASH
DRIVE
+
FLASH
UNIT
XE A(H)
XE K(L)
34
FOCUS
SENSOR
8
F SENS VCC
LENS BLOCK
2
3
6
FE3V
4
DRV3V
5
D001
(POWER)
D102
(SELF TIMER)
VCC
VCC
(MS CONNECTOR)
3
D 2.8V
2
D 2.8V
CN906
4
D 2.8V
7
9
MEMORY
STICK
26
8
FL –VO
1
33
FL +VO
2
32
16
17
17
28
27
27
6
7
7
PANEL 13.5V
30
29
29
4
5
5
MS VCC 21
22
D481
59
POFF E3
CN402
FRONT LIGHT
LCD901
COLOR
LCD
3
1
12
CRext
14
REF
19
VDDG
21
VDD
LED K
LED A
REF VOLTAGE
GEN.
Q410
FRONT LIGHT
DRIVE
Q462
Q408, 409
PANEL UNIT
POWER (1/2)
(PAGE 3-5)
P
S
L902
L903
F
Click on the first or last page to see other DSC-U20 (serv.man2) service manuals if exist.