Read Sony DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) Service Manual online
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
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
MULTI
CONNECTOR
34 - 39
29 - 33
08
ST-161 BOARD
ST-163 FLEXIBLE
BOARD
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
: 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
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
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
BOARD
2
BT001
LITHIUM
BATTERY
9 - 12
3 - 7
8
XPWR_ON
CN707
CN002
CONTROL SWITCH BLOCK
(RL-073)
(RL-073)
CONTROL SWITCH BLOCK
(SW-495)
(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
Q013
(MICROPHONE)
Ver. 1.4 2007.11
The changed portions from
Ver. 1.3 are shown in blue.
Ver. 1.3 are shown in blue.
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