DSC-T20, DSC-T20HDPR, DSC-T25 (serv.man2) - Sony Digital Camera Service Manual (repair manual). Page 17

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HELP
DSC-T20/T25_L2
HELP
Sheet attachment positions and procedures of processing the flexible boards/harnesses are shown.
PLATE (CCD), FIXED
SHEET (CCD), ADHESIVE
PLATE (CCD), FIXED
CCD BLOCK ASSY
SHEET (CCD), ADHESIVE
DSC-T20/T25_L2
Link
Link
3. BLOCK DIAGRAMS
OVERALL BLOCK DIAGRAM (2/2)
OVERALL BLOCK DIAGRAM (1/2)
POWER BLOCK DIAGRAM (1/2)
POWER BLOCK DIAGRAM (2/2)
DSC-T20/T25_L2
3-1
3. BLOCK DIAGRAMS
3-1. OVERALL  BLOCK  DIAGRAM (1/2)
( ) : Number in parenthesis (  ) indicates the division number of schematic diagram where the component is located.
 : VIDEO SIGNAL
SY-170 BOARD (1/2)
IC203_3_SO
VSUB_CONT_PRE, VSUB_CONT_POST
C25
D19
XIC203_3_SCK
AF22
CA_FD
CA_FD
AE23
CA_HD
CA_AD00 - CA_AD13
LENS
CCD
IMAGER
IC001
CD-695 FLEXIBLE BOARD
18
14
1
10
L7
J8
LENS BLOCK
CN301
ZOOM
MOTOR
M
FOCUS
MOTOR
M
FOCUS
SENSOR
ZOOM
SENSOR
YAW
MOTOR
M
HALL
ELEMENT
21, 24 - 28, 32 - 37
5 - 7
D1, D2, H1,
H2, K1, K2
16
LENS TEMP
SENSOR
IC002
HIGH SPEED
BUFFER AMP
27
28, 29, 30
9
L2
38
3 - 14
CCD_OUT
POWER_SAVE
POWER_SAVE
H1, H2, H3
H1, H2, H3
V1, V2, V3A, V3B, V4, V5A, V5B, V6 - V10
V1, V2, V3A, V3B, V4, V5A, V5B, 
V6 - V10
LH1
20
11
25
Q301
CCD SIGNAL
PROCESS,
TIMING
GENERATOR
(5/8)
IC304
1
G7
F11
SUB
SUB_CONT
Q302
L10
K10
XLENS_DRIVER_PS
H11
D4
E10
D11
R7, AF25
AE3
Y10
AD26
IRIS
(METER)
IRIS
MOTOR
M
IC401
36 - 39
18 - 21
22 - 25
FOCUS
MOTOR
DRIVER
IRIS_DIR_A, IRIS_BRK_A, IRIS_DIR_B, IRIS_BRK_B
FC_DIR_A, FC_DIR_B, FC_BRK_A
ZM_DIR_A, ZM_DIR_B, ZM_BRK_A
ZOOM
MOTOR
DRIVER
IRIS MOTOR
DRIVER
FOCUS_A, A, B, B
FC_SENS
ZM_SENS
LENS_TEMP
FC_SENS
ZM_SENS_1ST
LENS_TEMP
IRIS_A, A, B, B
IRIS_A, IRIS_A, IRIS_B, IRIS_B
CN401
F2, E2, D2, B1
D6, E6, B7, C6
B4, B5, B3, A3
LENS DRIVER
(6/8)
27
31
28
M8
FC_SENS_GND
XFC_RST_LED
33
J8
ZM_SENS_GND
XZM_RST_LED
30
TZ HALL TEMP
SENSOR
AF3
AB18
TZ_HALL_TEMP
TZ_HALL_TEMP
5
08
XDD_SYS_RST
XDD_SYS_RST
XDD_SYS_RST
2
OVERALL (2/2)
(PAGE 3-2)
CAMERA DSP,
LENS CONTROL,
MODE CONTROL,
FRONT CONTROL
(3/8, 4/8)
IC203
(1/2)
OVERALL (2/2)
(PAGE 3-2)
3
LCD_CK, LCD_HD, LCD_VD
LCD_D0 - LCD_D7
U19
XCS_ PANEL
IC203_0_SI, IC203_0_SO,  XIC203_0_SCK
IC203_2_SO, XIC203_2_SCK
IC203_2_SO, XIC203_2_SCK
C4, D9, F7, F9,
D10, E5, F5, F6, 
J9, E9, G5, G9
22, 23, 29 - 31
15, 16, 31 - 33
VHLD1, VHLD2, LV, VST1, VST2
LH1
20
3
L4
RG
RG
24
12
CSUB
CSUB
SUB
SUB_CONT
VHLD1, VHLD2, LV, VST1, VST2
C8, E7, E6, 
B5, C5
A3 - A8, B4, B6 - B10,
C6, C7
AE18 - AE21, AF19 - AF21,
AC18 - AC21, AB19 - AB21
F5, E5, D3, F1
D5, A6, B6, C5
A2, C3, C4, A1
B23, E18
B18, D18, B17
W16, Y18, AD25, Y17
A17, D16, A18, E16,
A19, E17, B19, D17
W18, AB26, W17
AB23, AC26, AA23
FOCUS_A, FOCUS_A, FOCUS_B, FOCUS_B
ZOOM_A, ZOOM_A, ZOOM_B, ZOOM_B
13, 17
3, 4, 6, 7
PITCH
MOTOR
M
HALL
ELEMENT
OPTICAL IMAGE
STABILIZER
YAW
±
YAW_HALLBIAS
±
,
YAW_HALL
±
9 - 12
15, 16, 1, 2
PITCH
±
PITCH_HALLBIAS
±
,
PITCH_HALL
±
ZOOM_A, A, B, B
SE501
SE502
PITCH_AD
YAW_AD
IC506
PITCH/YAW
SENSOR
AMP
(7/8)
IC503
OPTICAL
IMAGE 
STABILIZATION
DRIVE
(7/8)
21
18
J5
G5
D5
13
10
24
CPU_PIO_0
D6
25
CPU_PIO_1
CLK_IC503
XCS_IC503
A3
A7
C9
A5
XIC503_IC203_RST
A6
W13
U8
H10
YAW
SENSOR
PITCH
SENSOR
B10, D10
G6, J8,
J9, J7
J3, J2,
H2, J4
B1, D1
B4, A4, B5
D901
BACKLIGHT
3 - 10
CN706
2.5 inch
COLOR
LCD
MONITOR
LCD901
BL_H
BL_L
OVERALL (2/2)
(PAGE 3-2)
1
16
17
BL_H
38
BL_L
39
11, 12, 13
14, 15
RESET
DCK, HD, VD
XCS
D0 - D7
SI, SCK
E11
5
1
16
GEN_TG_CLK
GEAR_ON
AF18
Y13
J5
X201
36MHz
IC202
LOW POWER
CLOCK GEN
(4/8)
1
BATT_SIG
3
GEN_SYS_CLK
Y12
IC203_1_SI
G18
IC203_1_SO
B24
5
2
IC201
DSC
CONTROL
(3/8)
D5
C5
XIC203_1_SCK
H18
B5
XCS_IC201
W20
B1
E4
XDD_SYS_RST
XDD_SYS_RST
B2
4
OVERALL (2/2)
(PAGE 3-2)
DSC-T20/T25_L2
3-2
3-2. OVERALL  BLOCK  DIAGRAM (2/2)
( ) : Number in parenthesis (  ) indicates the division number of schematic diagram where the component is located.
DIRECT_PB
MS_IN
SY-170 BOARD (2/2)
V_LINE_OUT
AU_LINE_OUT
USB_VBUS
AUDIO, VIDEO AMP
(8/8)
IC602
A6
E2
A3
F1
SP+, SP-
V_LINE_OUT
AU_LINE_OUT
B6
F3
D6
IC203_2_SO, XIC203_2_SCK
D5, E6
A1, C1
MEMORY
STICK
DUO
2 - 5, 7, 8
6
CN704
XMS_IN
XACV_DET
D003
D002
AF_SW
Q704, Q707
MAX_5.0V
ACV_UNREG
BATT_UNREG
XPWR_ON
VL_3V
BL_H
BL_L
V_OUT
A_OUT_L
XAV_JACK_IN
USB_VBUS
CN705
24
18, 20
22
28
16
USB_DP, USB_DM
10, 12
6
20
16
26
MC-177 FLEXIBLE
BOARD
BATT_XEXT
HD_PR
10
8, 9
12
UART_Tx, UART_Rx
15, 9
ACV_UNREG
23, 25
CHARGE_V
17, 21
19
2
XPOWER_ON
7
7
HD_PB
14
4
HD_Y
26
24
CN001
MULTI
CONNECTOR
34 - 39
29 - 33
08
ST-161 BOARD
ST-163 FLEXIBLE 
BOARD
ST_UNREG
Q001
FLASH
DRIVE
FLASH
UNIT
FLASH
CONTROL,
CHARGE
CONTROL
6
4
9
7
IC001
XE_H
TRIGGER
TRIGGER_GND
XE_L
+
C901
CHARGING
CAPACITOR
D001
3
4
1
2
15
T001
10
CN701
5
1
2
8
7
6
1, 2
 : VIDEO SIGNAL
 : AUDIO SIGNAL
 : VIDEO/AUDIO SIGNAL
STRB_CHG
XSTRB_FULL
STB_CHG_CONT
STRB_ON
STRB_ON1
XAF_LED
AF_ANODE
D002
SELF-TIMER/
AF ILLUMINATOR
E2
A1
B9
XPWR_OFF
XCS_FR
XIC203_RST_REQ
IC203_1_UO, IC203_1_UI
IC203_1_UO, IC203_1_UI
IC203_AUOUT
USB_DP, USB_DM
USB_DP, USB_DM
AE8
AF8
IC203_AUIN
V8
XCS_AUDIO
IC203_AUOUT
IC203_AUIN
XCS_AUDIO
XHD_EN
AB13
IC203_CVOUT
IC203_YOUT
IC203_CVOUT
MSX_BS, MSX_D0 - MSX_D3, MSX_CLK
MSX_BS, MSX_D0 - MSX_D3, MSX_CLK
Y1, AA1
G19, D26
A14, A13, B14,
B13, A15, B15
AF12
VOUT_1
IC203_PBOUT
AC12
VOUT_2
IC203_PROUT
Q202, Q203, Q204
MUTE
A_3.0V
Q201
V7
Y16
H9
V2
H15
STRB_CHG
XSTRB_FULL
STB_CHG_CONT
STRB_ON1
G15
AF_LED_CONT
AF_LED_CONT
G9
XVA_JACK_IN
XVA_JACK_IN
Y9
XPWR_LED
R19
X_SHUT_SW
N19
XAE_LOCK_SW
AC8
KEY_AD_1
AF6
KEY_AD_2
H8
A23
XCS_FR
W12
G8
XPWR_OFF
K8
XACV_IN
XIC203_RST_REQ
CAMERA DSP,
LENS CONTROL,
MODE CONTROL,
FRONT CONTROL
(3/8, 4/8)
IC203
(2/2)
D706
MS ACCESS
LED
MEMORY STICK
DETECT
Q101
BACKUP POWER
REG
(2/8)
IC103
POWER/ENABLE SIG
CONTROLLER
(2/8)
IC101
TI_5.0V
A1
B4
EVER_3V
A2
J4
C6
XUSB_JACK
XMS_IN
USB_VBUS
D8
DISW1P8_EN
1.8V/3.0V
DISCHARGE
1.8V
SELECT SW
Q007
C2
DISW2P9_EN
C1
XRSTX
D7
B2
LCD POWER REG
(1/8)
IC006
PANEL_EN
B1
1
DC/DC CONVERTER
(1/8)
IC002
EVER_PSB
J9
8
1.8V REG
(1/8)
IC003
LDO_1P8_EN
H2
1
B7
XPWR_ON
B8
XDD_SYS_RST
BATT_SIG
XDD_SYS_RST
B4
A8
J5
X102
32.768KHz
LENS COVER
DETECT
S101
DDCPV_EN
SW
Q014
C9
BL_EN2
SW
Q006
F8
SW_1P8_EN
Q010, Q012
J1
5V LOAD SW
DDC5PSW_EN
Q003
F7
CAMDD_EN, DDC1P2_EN, 
DDC1P8_EN, DDC2P9_EN, 
BL_EN1, VSU_EN
B2, D9, E8,
E9, F8, J8
DC/DC
CONVERTER
(1/8)
IC001
D_1.8V
D_3.0V
A_3.0V
D_1.2V
CAM_-7.5V
MAX_5V
CAM_12V
AVC/BATT UNREG
8
5
16
21
30
34
37
43, 44
1, 3, 10, 15,
22, 36, 46
SP901
SPEAKER
BATT_UNREG
BATT_SIG
VL_3V
CN702
+
BH001
BATTERY
TERMINAL
BATT_UNREG
VL_3V
BATT_GND
S
BATT_SIG
BT-034 FLEXIBLE
BOARD
2
BT001
LITHIUM
BATTERY
9 - 12
3 - 7
8
XPWR_ON
CN707
CN002
CONTROL SWITCH BLOCK
(RL-073)
CONTROL SWITCH BLOCK
(SW-495)
4
XPWR_LED
5
XSHUTTER_SW
10
XAE_LOCK_SW
11
DIRECT_PB
12
KEY_AD_1
MIC_SIG
13
2
KEY_AD_2
15
SP+, SP-
7, 8
1, 2
CN001
6
POWER
S001
S002
D001
(POWER)
(SHUTTER)
S001
4
2
S003
W
(ZOOM)
S008
(REVIEW)
S005
MENU
S007
(SET)
S004
(FLASH)
(MACRO) (SELF-TIMER)
S002
T
(ZOOM)
S010
S006
S009
HOME
OVERALL (1/2)
(PAGE 3-1)
1
OVERALL (1/2)
(PAGE 3-1)
4
OVERALL (1/2)
(PAGE 3-1)
2
OVERALL (1/2)
(PAGE 3-1)
3
IC203_0_SI, IC203_0_SO,  XIC203_0_SCK
H17, A24, G17
D1, D2, E1
Q004,
Q013
(MICROPHONE)
Ver. 1.4  2007.11
The changed portions from
Ver. 1.3 are shown in blue.

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