Sony DSC-U20 (serv.man2) Service Manual ▷ View online
DSC-U20
COVER
COVER
4-2. SCHEMATIC DIAGRAMS
4-3. PRINTED WIRING BOARDS
4-2. SCHEMATIC DIAGRAMS
4-3. PRINTED WIRING BOARDS
4-1
4-2
4-1. FRAME SCHEMATIC DIAGRAM
FRAME
SECTION 4
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
1
10
10P
VSS
1
BS
2
VCC
3
DIO
4
N.C
5
INT
6
N.C
7
SCLK
8
VCC
9
VSS
10
2P
CN002
1
BUZZER
2
GND
29P
CN401
1
FL_-VO
2
FL_+VO
3
REG_GND
4
P
ANEL_13.5V
5
P
ANEL_13.5V
6
P
ANEL_2.8V
7
P
ANEL_2.8V
8
VG
9
VR
10
VB
11
VP
12
REG_GND
13
P
ANEL_B
14
P
ANEL_G
15
P
ANEL_R
16
REG_GND
17
XRST_SYS
18
XHD
19
XVD
20
LCD_SO
21
XLCD_SCK
22
XCS_LCD
23
REG_GND
24
TG_CLK
25
REG_GND
26
D_2.8V
27
XCHARGE_LED
28
VL_3V
29
KEY_AD0
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
31P
CN902
1
CD_GND
2
CAM_15V
3
CAM_-7.5V
4
FE3V
5
DRV3V
6
TG3V
7
XCAM_RESET
8
CA_HD
9
CA_FD
10
CD_GND
11
TG_CLK
12
CD_GND
13
MCK
14
CD_GND
15
XCAM_SCK
16
CAM_SO
17
XCAM_CS
18
XTG_CS
19
CA_AD0
20
CA_AD4
21
CA_AD8
22
CA_AD1
23
CA_AD5
24
CA_AD9
25
CA_AD2
26
CA_AD6
27
CA_AD10
28
CA_AD3
29
CA_AD7
30
CA_AD11
31
CD_GND
15P
1
DRIVE-
2
DRIVE+
3
HALL-
4
BIAS+
5
BIAS-
6
HALL+
7
F_SENS_RST
8
F_SENS_VCC
9
F_SENS_GND
10
N.C.
11
LENS TEMP
12
FOCUS_B
13
FOCUS_A
14
FOCUS_B
15
FOCUS_A
25P
CN903
1
ST_UNREG
2
ST_UNREG
3
ST_UNREG
4
STB_CHARGE
5
REG_GND
6
REG_GND
7
REG_GND
8
XSTB_FULL
9
M_5V
10
STRB_ON
11
DRIVE-
12
DRIVE+
13
HALL-
14
BIAS+
15
BIAS-
16
HALL+
17
XFC_RST_SENS
18
F_SENS_VCC
19
F_SENS_GND
20
N.C.
21
LENS_TEMP
22
FOCUS_B
23
FOCUS_A
24
FOCUS_B
25
FOCUS_A
6P
CN908
1
XRESET_SW_ON
2
REG_GND
3
XCPC_IN
4
EVER_4.0V
5
LANC_IN
6
LANC_OUT
6P
CN001
1
XSELF_TIMER_LED
2
D_2.8V
3
XLENS_CAP_OPEN
4
GND
5
STATIC_GND
6
N.C.
51P
CN901
1
ST_UNREG
2
ST_UNREG
3
ST_uNREG
4
REG_GND
5
REG_GND
6
CAM_15V
7
CAM_15V
8
CAM_-7.5V
9
CAM_-7.5V
10
D_1.5V
11
D_1.5V
12
D_1.5V
13
A_2.8V
14
A_2.8V
15
CAM_DD_ON
16
M_5V
17
M_5V
18
D_2.8V
19
D_2.8V
20
P
ANEL_2.8V
21
P
ANEL_2.8V
22
P
ANEL_13.5V
23
P
ANEL_13.5V
24
FL_-VO
25
REG_GND
26
REG_GND
27
REG_GND
28
REG_GND
29
REG_GND
30
REG_GND
31
REG_GND
32
REG_GND
33
REG_GND
34
REG_GND
35
ACV_UNREG
36
BA
TT_UNREG
37
DD_CON_SENS
38
EVER_4.0V
39
EVER_4.0V
40
EVER_3.0V
41
XCS_DDCON
42
UNREG_SO
43
UNREG_SCK
44
SYS_DD_ON
45
USB_UNREG_SW
46
F
AST_CHARGE
47
REG_GND
48
USB_5V
49
USB_5V
50
BUZZER
51
BUZZER_15V
51P
CN001
1
BUZZER_15V
2
BUZZER
3
USB_5V
4
USB_5V
5
REG_GND
6
F
AST_CHARGE
7
USB_UNREG_SW
8
SYS_DD_ON
9
UNREG_SCK
10
UNREG_SO
11
XCS_DDCON
12
EVER_3.0V
13
EVER_4.0V
14
EVER_4.0V
15
DD_CON_SENS
16
BA
TT_UNREG
17
ACV_UNREG
18
REG_GND
19
REG_GND
20
REG_GND
21
REG_GND
22
REG_GND
23
REG_GND
24
REG_GND
25
REG_GND
26
REG_GND
27
REG_GND
28
FL_-VO
29
P
ANEL_13.5V
30
P
ANEL_13.5V
31
P
ANEL_2.8V
32
P
ANEL_2.8V
33
D_2.8V
34
D_2.8V
35
M_5V
36
M_5V
37
CAM_DD_ON
38
A_2.8V
39
A_2.8V
40
D_1.5V
41
D_1.5V
42
D_1.5V
43
CAM_-7.5V
44
CAM_-7.5V
45
CAM_15V
46
CAM_15V
47
REG_GND
48
REG_GND
49
ST_UNREG
50
ST_UNREG
51
ST_UNREG
27P
CN402
1
LED_A
2
N.C.
3
LED_K
4
TEST2
5
RGT
6
B
7
R
8
G
9
PSIG
10
HCK1
11
HCK2
12
CRext
13
DSUT
14
REF
15
HST
16
WIDE
17
CS
18
VSSG
19
VDDG
20
VSS
21
VDD
22
DWN
23
EN
24
VCK
25
VST
26
COM
27
TEST
23P
CN906
1
XAE_LOCK_LED
2
XTALLY_LED
3
XSELF_TIMER_LED
4
D_2.8V
5
XLENS_CAP_OPEN
6
XPOWER_LED
7
D_2.8V
8
GND
9
XPOWER_ON
10
XAE_LOCK_SW
11
XSHUTTER
12
MODE_DIAL
13
GND
14
MS_VSS
15
MS_BS
16
MS_VCC
17
MS_VCC
18
MS_DIO
19
MS_INT
20
MS_SCLK
21
MS_VCC
22
MS_VCC
23
MS_VSS
33P
CN904
1
XRESET_SW_ON
2
XPOWER_LED
3
XPOWER_ON
4
MODE_DIAL
5
KEY_AD0
6
VL_3V
7
XCHARGE_LED
8
D_2.8V
9
REG_GND
10
TG_CLK
11
REG_GND
12
XCS_LCD
13
XLCD_SCK
14
LCD_SO
15
XVD
16
XHD
17
XRST_SYS
18
REG_GND
19
P
ANEL_R
20
P
ANEL_G
21
P
ANEL_B
22
REG_GND
23
VP
24
VB
25
VR
26
VG
27
P
ANEL_2.8V
28
P
ANEL_2.8V
29
P
ANEL_13.5V
30
P
ANEL_13.5V
31
REG_GND
32
FL_+VO
33
FL_-VO
5P
CN050
1
VCC
2
D-
3
D+
4
ID
5
GND
LENS
LCD901
FP-532 FLEXIBLE BOARD
FP-533 FLEXIBLE BOARD
DD-182 BOARD
PD-174 BOARD
TY-15 BOARD
MS CONNECTOR
BZ901
CD-425
CCD
SW-376
US-4
FLASH UNIT
ST-79
SL-59
RS-85
OP-17
BT901
BATTERY
LED FRONT LIGHT
TERMINAL
1inch
COLOR LCD
PANEL UNIT
BUZZER
FLEXIBLE
IC101
CAMERA MODULE
(CH-124 BOARD)
BOARD
BOARD
FLEXIBLE
BOARD
FLEXIBLE
BOARD
FLEXIBLE BOARD
STICK
MEMORY
MEMORY STICK
FLEXIBLE
BOARD
FLEXIBLE
BOARD
D
8
14
10
E
H
18
3
15
19
20
1
11
2
M
J
F
I
FRAME SCHEMATIC DIAGRAM
L
17
4
C
B
7
6
N
16
05
13
9
A
K
12
G
5
(USB)
C601
CHARGING
CAPACITOR
4-5
DSC-U20
COVER
COVER
4-2. SCHEMATIC DIAGRAMS
4-2. SCHEMATIC DIAGRAMS
Link
(For schematic diagrams)
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF :
µ
µ
F. 50 V or less are not indicated except for electrolytics
and tantalums.
• Chip resistors are 1/10 W unless otherwise noted.
k
Ω
=1000
Ω
, M
Ω
=1000 k
Ω
.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.
• Some chip part will be indicated as follows.
Example
C541
L452
22U
10UH
TA A
2520
• Constants of resistors, capacitors, ICs and etc with XX
indicate that they are not used.
In such cases, the unused circuits may be indicated.
In such cases, the unused circuits may be indicated.
• Parts with
★
differ according to the model/destination.
Refer to the mount table for each function.
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• Signal name
XEDIT
→
EDIT
PB/XREC
→
PB/REC
•
2
: non flammable resistor
•
5
: fusible resistor
•
C
: panel designation
•
A
: B+ Line
•
B
: B– Line
•
J
: IN/OUT direction of (+,–) B LINE.
•
C
: adjustment for repair.
•
A
: VIDEO SIGNAL (ANALOG)
•
A
: AUDIO SIGNAL (ANALOG)
•
A
: VIDEO/AUDIO SIGNAL
•
A
: VIDEO/AUDIO/SERVO SIGNAL
•
A
: SERVO SIGNAL
• Circled numbers refer to waveforms.
(Measuring conditions voltage and waveform)
(Measuring conditions voltage and waveform)
• Voltages and waveforms are measured between the
measurement points and ground when camera shoots
color bar chart of pattern box. They are reference values
and reference waveforms.
(VOM of DC 10 M
color bar chart of pattern box. They are reference values
and reference waveforms.
(VOM of DC 10 M
Ω
input impedance is used)
• Voltage values change depending upon input
impedance of VOM used.)
1. Connection
2. Adjust the distance so that the display of Fig. a can be
obtain.
When indicating parts by reference number, please
include the board name.
include the board name.
THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
(In addition to this, the necessary note is printed in each block)
Kinds of capacitor
Case Size
External dimensions (mm)
Note :
Les composants identifiés par une marque
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifie.
le numéro spécifie.
Note :
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
4-2. SCHEMATIC DIAGRAMS
Front of the lens
Pattern box
L
L = About 30 cm
A B
B
C
D
A
A=B
C=D
Fig.a (Picture on LCD display)
DSC-U20
COVER
COVER
Link
Link
4-2. SCHEMATIC DIAGRAMS
US-4 FLEXIBLE BOARD
(USB CONNECTOR)
ST-79 BOARD
(FLASH DRIVE)
RS-85, FP-532, FP-533 FLEXIBLE BOARD
SL-59 FLEXIBLE BOARD
(CHARGING CAPACITOR, FLASH UNIT)
SW-376 FLEXIBLE BOARD
(CONTROL SWITCH, MS CONNECTOR)
CD-425 FLEXIBLE BOARD (2/2)
(CAMERA MODULE)
OP-17 FLEXIBLE BOARD
(LENS COVER DETECT)
CD-425 FLEXIBLE BOARD (1/2)
(CCD IMAGER)
US-4 FLEXIBLE BOARD
(USB CONNECTOR)
ST-79 BOARD
(FLASH DRIVE)
RS-85, FP-532, FP-533 FLEXIBLE BOARD
SL-59 FLEXIBLE BOARD
(CHARGING CAPACITOR, FLASH UNIT)
SW-376 FLEXIBLE BOARD
(CONTROL SWITCH, MS CONNECTOR)
CD-425 FLEXIBLE BOARD (2/2)
(CAMERA MODULE)
OP-17 FLEXIBLE BOARD
(LENS COVER DETECT)
CD-425 FLEXIBLE BOARD (1/2)
(CCD IMAGER)
COMMON NOTE FOR SCHEMATIC DIAGRAMS
WAVEFORMS
COMMON NOTE FOR SCHEMATIC DIAGRAMS
WAVEFORMS
DSC-U20
COVER
COVER
For Schematic Diagram
• Refer to page 4-37 for printed wiring board.
• Refer to page 4-57 for waveform.
• Refer to page 4-37 for printed wiring board.
• Refer to page 4-57 for waveform.
4-7
4-8
CD-425 (1/2)
Precautions for Replacement of CCD Imager
• The CD-425 flexible board mounted as a repair part is not
equipped with a CCD imager.
When replacing this board, remove the CCD imager from the
old one and mount it onto the new one.
When replacing this board, remove the CCD imager from the
old one and mount it onto the new one.
• If the CCD imager has been replaced, carry out all the
adjustments for the camera section.
• As the CCD imager may be damaged by static electricity from
its structure, handle it carefully like for the MOS IC.
In addition, ensure that the receiver is not covered with dusts
nor exposed to strong light.
In addition, ensure that the receiver is not covered with dusts
nor exposed to strong light.
4-2. SCHEMATIC DIAGRAMS
CD-425 FLEXIBLE BOARD
4-2. SCHEMATIC DIAGRAMS
CD-425 FLEXIBLE BOARD
1
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
R:REC MODE
P:PB MODE
R11.1/P0
Note:The voltage and
waveform of IC302
cannot be measured,
because it is mounted
by the side of lens.
cannot be measured,
because it is mounted
by the side of lens.
R15.1/P0
R11.8/P0
(2/2)
1
IC302
2200p
C307
L301
100uH
C312
CH
XX
35V
1.5u
C302
2SC4250(T5LSONY1)
Q302
25V
0.22u
C301
0
R304
0.01u
C313
100k
R301
0
R306
MA111-(K8).S0
D301
5.6k
R308
25V
0.22u
C305
R302 0
16V
0.1u
C310
FB301
0
R303
C309
16V
0.1u
16V
0.1u
C306
CCD_OUT
CAM_15V
GND
TEST
H1
RG
H2
V3B
V3A
V2B
V2A
V4
V1
VSHT
GND
CAM_-7.5V
GND
GND
C314
10u
35V
1.5u
C315
C303
10u
IC302
ICX454JQF-13
1
V4
2
V3A
3
V3B
4
V3C
5
VHOLD
6
V2A
7
V2B
8
V2C
9
V1
10
VOUT
11
VDD
12
RG
13
GND
14
GND
15
VL
16
H1
17
H2
18
φ
SUB
V3C
V2C
R311
0
R307
3.9k
R309
XX
R310
XX
1
A
HS601
CCD IMAGER
VIDEO
SIGNAL
Y/CHROMA
SIGNAL PATH
REC
BUFFER
7
F
5
6
D
8
C
E
H
9
CD-425 FLEXIBLE BOARD (1/2)
CCD IMAGER(CCD1 BLOCK)
XX MARK:NO MOUNT
4
B
3
2
G
05
CH
C311
XX
Q303
XX
Q304
XX
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