Sony DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) Service Manual ▷ View online
DSC-T20/T25_L2
3-3
3-3. POWER BLOCK DIAGRAM (1/2)
( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located.
CCD_12V
CCD_-7.5V
CAM_12V
CAM_-7.5V
1
39
CN301
CCD
IMAGER
IC001
HIGH SPEED
BUFFER AMP
IC002
CD-695 FLEXIBLE BOARD
45 BATT
47 LXSU
9 PVAFE
35 PVLED
29 PVBST
28 GD
13 PVSD
36 ONLED
VSEN
LXM 5
LXAFE
D_1.8V
MAX_5.0V
MAX_5.0V
8
DISW1P8_EN
DISW2P9_EN
DC/DC
CONVERTER
(1/8)
IC001
L002
L005
L006
LXSD
D_1.2V
EVER_3.0V
1.2V_INT
1.2V_INT
16
L009
L702
SWBST
CAM_12V
30
L004
LXINV
CAM_-7.5V
21
20
PVINV
4
PVM
MAX_5.0V
44
PVSU
43
SU
D012
D010
D007
SWLED
BL_H
34
FBLLED
BL_L
BL_H
BL_L
37
L003
D006
IC004
VOLTAGE
DETECTOR
(1/8)
D_1.8V
D_3.0V
3
VIN 4
VOUT 1
Vin
LDO_1P8_EN
DDR_1.8V
IC003
1.8V REG
(1/8)
4
CE
1
Vout 3
EN
EVER_PSB
IC002
DC/DC
CONVERTER
(1/8)
1
SW
9
LBI
7
VBAT
6
PS
8
VOUT 2
33
LXLED
Q006
Q003
Q014
D008
Q007
1.8V/3.0V
DISCHAGE
MAX_5.0V
Q707
AF SW
SW_1P8_EN
Q010, Q012
1.8V
SELECT SW
Vin
PANEL_EN
DDC5PSW_EN
PANEL_6.4V
AF_ANODE
IC006
LCD
POWER
REG
(1/8)
6
Vcont
1
Vout 4
D_1.8V
CAM_-7.5V
CAM_12V
D_1.2V
EVER_3.0V
D_3.0V
A_3.0V
D_3.0V
L001
A_3.0V
DDCPV_EN
TI_5.0V
A_3.0V
D_1.8V
D_3.0V
DDR_1.8V
TI_5.0V
TI_5.0V
L007
ST_UNREG
ACV_UNREG
ACV_UNREG
ACV_UNREG
ACV_UNREG
TI_5.0V
TI_5.0V
ST-161 BOARD
ST-163 FLEXIBLE
BOARD
BOARD
SY-170 BOARD (1/2)
CN701
D001
T001
L001
FLASH CONTROL,
CHARGE CONTROL
IC001
9
3, 4
2
D002
SELF-TIMER/
AF ILLUMINATOR
FLASH
UNIT
C901
CHARGING
CAPACITOR
+
VCCI
D901
BACKLIGHT
BL_H
CN706
39
38
33
VCC (3.0V)
35
VCC2 (6V)
34
BL_L
BL_H
BL_L
2.5 inch
COLOR
LCD
MONITOR
LCD901
FL701
B8
XPOWER_ON0
H7
DDC2P9_AD
XPOWER_ON1
32KHZ_IN
32KHZ_OUT
POWER/ENABLE SIG
CONTROLLER
(2/8)
IC101
A8
BL_EN1 F8
BL_EN2 F9
DDC1P8_AD
D_1.8V
1.2V_INT
J7
LDO1P8_EN H2
EVER_PSB J9
SW1P8_EN J1
PANEL_EN B1
DDCPV_EN C9
DDC5PSW_EN F7
DISW1P8_EN C2
DISW2P9_EN C1
LENS COVER
DETECT
S101
J4
J5
X102
32.768KHz
D_3.0V
D_1.8V
D_3.0V
C8
DDC1P2_RESET
CAM_12V_1
TI_5.0V
DDR_1.8V
MC-177
FLEXIBLE
BOARD
FLEXIBLE
BOARD
Q004, Q013
28
10
19
26
CN705
CHARGE_V
BATT_UNREG
BATT_XEXT
XACV_DET
ACV_UNREG
ACV_UNREG
ST_UNREG
XAV_JACK_IN
D002
D003
CN001
MULTI
MULTI
CONNECTOR
7
7
XPOWER_ON
23, 25
17, 21
34 - 39
29 - 33
XPWR_ON
BATT_UNREG
BT-034
FLEXIBLE
BOARD
FLEXIBLE
BOARD
CN702
+
−
BH001
BATTERY
TERMINAL
BATT_UNREG
VL_3V
VL_3V
XAV_JACK_IN
XACV_IN
BATT_SIG
BATT_GND
S
BATT_SIG
2
BT001
LITHIUM
BATTERY
9 - 12
3 - 7
8
F002
F001
A
POWER (2/2)
(PAGE 3-4)
B
POWER (2/2)
(PAGE 3-4)
08
L302
L303
D009
DSC-T20/T25_L2
3-4E
CN704
SY-170 BOARD (2/2)
Q706
IC203
CAMERA DSP,
LENS
CONTROL,
MODE
CONTROL,
FRONT
CONTROL,
(3/8, 4/8)
L203
FB217
L204
A_3.0V
A_3.0V
AVCC_3.0V
DDR_VDD
XHD_EN
D_3.0V
D_3.0V
BATT_SIG
VL_3V
D_1.8V
D_1.8V
D_1.8V
D_1.2V
DDR_1.8V
D_1.2V
08
DDR_1.8V
CAM_3.5V
CAM_3.5V
AU_AVCC
9
MEMORY
STICK
DUO
TXRX
IC201
DSC
CONTROL
(3/8)
E4
VDD
AVREF
AVREF
D_3.0V
D_3.0V
D_3.0V
D2, B4, A5, E1
D101
VCH
VIN
VRO
TI_5.0V
TI_5.0V
EVER_3.0V
BACKUP
POWER
REG
(2/8)
IC103
XAV_JACK_IN
XACV_IN
A1
A2
A4
AE10
VRP
XAV_JACK_IN
G9
GPE_06
XACV_IN
K8
GPE_05
MS_PWR_ON
MS_PWR_ON
T7
GPE_15
GPE_04
GPE_03
GPS_11
V7
VBUS
AA5
Q201
Q202, Q203, Q204
Y/PB/PR
MUTE
L201
VBUS
USB_ID
Y5
MAX_5.0V
MAX_5.0V
D_3.0V
D_1.8V
D_1.8V
A_3.0V
CAM_3.5V
2.8V REG
(7/8)
IC501
B2
VOUT
VIN
B1
VCONT
A2
1.5V REG
(7/8)
IC502
B2
VOUT
VIN
B1
IC503
OPTICAL
IMAGE
STABILIZATION
DRIVE
(7/8)
SE501
SE502
IC506
PITCH/YAW
SENSOR AMP
(7/8)
YAW
SENSOR
PITCH
SENSOR
D_3.0V
D_3.0V
CAM_3.5V
TI_5.0V
TI_5.0V
XDD_SYS_RST
XDD_SYS_RST
CAM_3.5V
EVER_3.0V
EVER_3.0V
3.5V REG
(5/8)
IC307
CCD SIGNAL
PROCESS,
TIMING
GENERATOR
(5/8)
IC304
A2
VOUT
STBY
A2 STBY
B1
VIN
B2
D_3.0V
HVDD1, HVDD2
2.3V REG
(5/8)
IC308
B2
VOUT
VIN
B1
Q304
3.5V
DISCHAGE
D_3.0V
D_1.8V
D_3.0V
1.8V REG
(5/8)
IC306
6
VOUT
VIN
4
CAM_12V
CAM_12V_1
CAM_12V_1
13.0V REG
(5/8)
IC303
1
Vout
Vcont
4
Vin
5
FB302
CAM_-7.5V
CAM_12V
CAM_-7.5V
CAM_-7.5V
FB301
D_1.8V
CLIVDD
FB305
DVDD
FB306
A_3.0V
D_3.0V
MAX_5.0V
L602
IC602
AUDIO/VIDEO
AMP
(8/8)
(8/8)
D_3.0V
IC401
LENS DRIVER
(6/8)
D_3.0V
CN401
ZM_SENS_VCC
29
FC_SENS_VCC
ZM_SENS_GND
XZM_RST_LED
30
FC_SENS_GND
XFC_RST_LED
33
32
FOCUS
SENSOR
ZOOM
SENSOR
LENS BLOCK
M8
J8
A
POWER (1/2)
(PAGE 3-3)
B
POWER (1/2)
(PAGE 3-3)
RSTB
RGVDD
E11
L3
1 Vcont
A2 Vcont
L5
A10
DRVDD
FB303
A2
FB216
FB215
3-4. POWER BLOCK DIAGRAM (2/2)
( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located.
DSC-T20/T25_L2
4-1
4-1. FRAME SCHEMATIC DIAGRAM
4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
FRAME
BT001
LITHIUM RECHARGEABLE
BATTERY
BH001
BATTERY TERMINAL
SP901
SPEAKER
LCD901
2.5 inch
COLOR
LCD MONITOR
CONTROL SWITCH BLOCK
(RL-073)
CONTROL SWITCH
BLOCK
(SW-495)
LENS BLOCK
LEVEL3
LEVEL3
C901
CHARGING CAPACITOR
FLASH UNIT
D002
D002
AF illuminator/
self-timer lamp
self-timer lamp
( )
2
1
38
39
2
1
38
39
1
12
13
14
1
12
13
14
2
1
38
39
2
1
38
39
2
1
16
17
1
10
12
11
2
26
27
28
1
25
CN401
CN301
IC001
(Not supplied)
IC002
(Not supplied)
CN701
CN702
CN705
CN706
CN707
CN704
MEMORY STICK
CONNECTOR
( )
CN001
(MULTI CONNECTOR)
MC-177 FLEXIBLE
BOARD
BOARD
ST-163
FLEXIBLE BOARD
FLEXIBLE BOARD
ST-161 BOARD
SY-170 BOARD (SIDE B)
BT-034 FLEXIBLE
BOARD
BOARD
CD-695 FLEXIBLE BOARD
SY-170 BOARD (SIDE A)
1
12
1
12
39
1
1
39
IC203
(Not supplied)
DSC-T20/T25_L2
ST-163 FLEXIBLE BOARD (AF ILLMINATOR)
CD-695 FLEXIBLE BOARD (CCD IMAGER)
ST-161 BOARD (FLASH DRIVE)
MC-177 FLEXIBLE BOARD
(MULTI CONNECTOR)
(MULTI CONNECTOR)
BT-034 FLEXIBLE BOARD
(BATTERY IN, MODE SWITCH)
(BATTERY IN, MODE SWITCH)
CONTROL SWITCH BLOCK
(RL-073, SW-495)
(RL-073, SW-495)
Link
Link
4-2. SCHEMATIC DIAGRAMS
COMMON NOTE FOR SCHEMATIC DIAGRAMS
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