Read Sony DSC-U20 Service Manual online
DSC-U20
COVER
COVER
For Schematic Diagram
• Refer to page 4-39 for printed wiring board.
• Refer to page 4-58 for waveforms.
• Refer to page 4-39 for printed wiring board.
• Refer to page 4-58 for waveforms.
4-2. SCHEMATIC DIAGRAMS
TY-15 BOARD
4-2. SCHEMATIC DIAGRAMS
TY-15 BOARD
4-17
4-18
TY-15 (4/4)
NO MARK:REC/PB MODE
:Voltage measurment of the CSP ICs
and the Transistors with mark,are
not possible.
and the Transistors with mark,are
not possible.
3.3
4
0
3
2.9
3
3
4
3
0
1.9
1.8
0
0
2.8
5
6
2.9
2.9
0
3
(2/4)
13
(2/4)
(3/4)
14
(2/4)
9
7
(2/4)
(2/4)
6
(2/4)
10
USB
USB
USB
USB
MS MS
MS MS
KEY_AD0
XSTB_FULL
STB_CHARGE
FAST_CHARGE
XMC_HELP
XCS_MC
SYS_V
D_2.8V
XRST_SYS
FR_SO
FR_SI
XFR_SCK
XPWR_LED
XPWR_ON
XMC_NMI
BATT_UNREG
XCHARGE_LED
MODE_DIAL
EVER_4.0V
UNREG_SO
XCS_DDCON
UNREG_SCK
EVER_3.0V
DD_CON_SENS
BUZZER_15V
XDP_PULL_UP
USB_PWR_ON
USB_CLK_EN
USB_UNREG_SW
USB_HOLD
USB_VBUS
XRESET_SW_ON
ACV_UNREG
REG_GND
BUZZER
USB_5V
MS_POWER_ON
VL_3V
C405
0.1u
0.1u
C410
XX
C418
C411 0.47u
XX
C419
4700p
C403
9p
C420
9p
C421
0.1u
C413
0.1u
C406
0.01u
C412
C408 3300p
0.1u
C409
0.47u
C407
0.1u
C906
R415
1k
R417
1k
47k
R414
1k
R450
10k
R451
R434
0.5%
1M
470k
R410
33
R428
470k
R405
R416
1k
470k
R402
10M
R443
0.5%
1M
R433
470k
R407
470k
R435
470k
R442
1k
R437
0.5%
1M
R436
0.5%
1M
R431
R454
10k
10k
R452
1M
R430
100k
R422
1k
R449
1k
R408
1k
R406
1M
R411
10k
R453
10k
R455
470k
R412
R419
100k
470
R423
470
R424
470
R413
470k
R404
470k
R409
470k
R439
150k
R444
470k
R403
1k
R438
1k
R401
100k
R420
150
R429
0
R426
470k
R432
470k
R425
33k
R418
R421
XX
R458
470k
10k
R459
3300
R902
330k
R904
XX
X402
32.768kHz
X403
MB89097LGA-G-126-ER
IC401
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
BD4201FV-E2
IC402
1234
5
6
7
8
X401
10MHz
1
2
3
10V
4.7u
C402
6.3V
10u
C404
10V
4.7u
C401
6.3V
10u
C422
10V
4.7u
C905
L401
47uH
47uH
SSM3K03FE(TPL3)
Q401
RQ5RW33AA-TR
IC403
1
GND
2
VIN
3
VOUT
4
CE
MA2SD24008S0
D402
RN1904FE(TPLR3)
Q402
3
5
4
6
2
1
UNRL21300AS0
Q405
1
4
3
2
2SD2216L0AS0
Q404
1
4
3
2
2SD2216L0AS0
Q403
1
4
3
2
6P
CN908
1
XRESET_SW_ON
2
REG_GND
3
XCPC_IN
4
EVER_4.0V
5
LANC_IN
6
LANC_OUT
8P
CN907
1
USB_JACK_IN
2
USB_5V
3
USB_5V
4
REG_GND
5
USB_D+
6
USB_D-
7
USB_GND
8
USB_GND
MA4L11100AS0
D901
1
4
3
2
23P
CN906
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
USB_D-
USB_D+
MS_SCLK
MS_DIO
MS_BS
SYS_DD_ON
USB_SUSPEND
R460
0
0.1u
C423
Q903
UNRL21300ASO
Q902
MCH3317-TL-E
100k
R903
C907
0.022u
KEY_AD0
BA
TT_UNREG
ACV_UNREG
XRESET
XSTB_FULL
UNREG_SO
XCS_DDCON
DD_CON_SENS
USB_UNREG_SW
UNREG_SCK
FR_SI
FR_SO
XFR_SCK
XCS_MC
SYS_V
XMC_HELP
STB_CHARGE
FAST_CHARGE
XDP_PULL_UP
USB_VBUS
USB_HOLD
USB_UNREG_SW
XRESET
USB_CLK_EN
SYS_DD_ON
XMC_NMI
USB_PWR_ON
BUZZER
BATT_UNREG
DD_CON_SENS
KEY_AD0
USB_SUSPEND
XCHARGE_LED
XRST_SYS
ACV_UNREG
LANC_OUT
MODE_DIAL
MS_DIO
MS_BS
MS_SCLK
XPWR_LED
XPWR_ON
XRESET_SW_ON
XRESET_SW_ON
XPWR_LED
XPWR_ON
MODE_DIAL
XCHARGE_LED
STB_CHARGE
XSTB_FULL
BUZZER
MS_SCLK
MS_DIO
MS_BS
USB_SUSPEND
USB_PWR_ON
USB_CLK_EN
USB_HOLD
USB_VBUS
FR_SI
FR_SO
XFR_SCK
XCS_MC
XDP_PULL_UP
XRST_SYS
SYS_V
FAST_CHARGE
USB_UNREG_SW
SYS_DD_ON
UNREG_SCK
UNREG_SO
XCS_DDCON
XMC_HELP
XMC_NMI
A
VCC
GND
GND
LCD_COM/XDATA
10MHz_OUT
BATT_SI
XSTB_FULL
DD_CON_SENS
KEY_AD0
FR_SI
USB_CLK_EN
UNREG_SO
A
Vss
MC_W
AKE_UP
XCS_LCD
VRO
MS_IN
USB_UNREG_SW
XRST_SYS
VSS
XMC_HELP
USB_SUSPEND
DEW_SENS
VOUT
BATT/XEXT
(RESERVED)
BA
TT_IN
VBAT
MOD0
SYS_V
KEY_AD1
XLANC_ON
USB_PWR_ON
XPB_ON
BATT_SO
XSHTR_ON
10MHz_IN
BA
TT_SENS
BACK_UP_VCC
VCH
DR
Y_BA
TT_IN1
UNREG_SCK
VIN
LANC_OUT
MODE_DIAL
USB_VBUS
XPWR_ON
KEY_AD3
32kHz_OUT
XAE_LOCK_ON
CS
ACV_SENS
XCS_DDCON
CHARGE/STB_LED
XRESET
FR_SO
XLENS_CAP_OPN
LANC_IN
XLANC_PWR_ON
RESET
SYS_DD_ON
XSTB_POPUP
XSETUP_ON
AV_JACK_IN
XDP_PULL_UP
BACK_UP_VCC
(AN13)
A
VREF
MELODY
FAST_CHARGE
XPWR_LED_ON
Program_Dial_A
ZOOM_AD_KEY
STB_CHG
LANC_JACK_IN
XFR_SCK
KEY_AD2
KEY_AD4
XTALLY_LED
32kHz_IN
MOD1
USB_HOLD
INIT_CHARGE
Program_Dial_B
XCS_MC
SELF_TIMER_LED
XUSB_JACK_IN
XSTB_PWRSA
VE
MS_VSS
MS_INT
XPOWER_ON
MS_DIO
MS_VCC
MODE_DIAL
GND
XTALLY_LED
XSELF_TIMER_LED
XPOWER_LED
MS_VCC
MS_VCC
MS_VSS
MS_BS
MS_SCLK
MS_VCC
XAE_LOCK_SW
GND
XAE_LOCK_LED
XSHUTTER
D_2.8V
XLENS_CAP_OPEN
D_2.8V
IC402
INITIAL RESET,
Q404,405
MODULATOR
HI CONTROL
IC401
INVERTER
BUFFER
LED DRIVE
BACK UP VCC
3.3V REG
IC403
FLEXIBLE
LND001-006
(PAGE 4-31)
RS-85
US-4
LND050-057
(PAGE 4-27)
FLEXIBLE
FLEXIBLE
(PAGE 4-29)
LND001-023
SW-376
D
8
14
10
E
H
3
15
1
11
2
J
F
I
TY-15 BOARD (4/4)
17
4
C
B
7
6
16
05
13
9
A
K
12
G
5
HI CONTROL(FR BLOCK)
XX MARK:NO MOUNT
Y/CHROMA
REC
PB
SIGNAL PATH
VIDEO SIGNAL
Q902,903
MS_VCC SWITCH
1
4
3
2
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