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 4-39 for printed wiring board.
4-15
4-16
TY-15 (3/4)
4-2. SCHEMATIC DIAGRAMS
TY-15 BOARD
4-2. SCHEMATIC DIAGRAMS
TY-15 BOARD
4
(2/4)
(4/4)
14
(2/4)
12
11
(2/4)
(2/4)
8
5
(2/4)
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
R:REC MODE
P:PB MODE
:Voltage measurment of the CSP ICs
and the Transistors with mark,are
not possible.
and the Transistors with mark,are
not possible.
R1/
P0.1
R0.9/P1.1
0.7
0.9
0.9
0.9
0.9
0.1
0.1
2.9
0.9
0.9
1.1
0.9
0.9
2.9
0.9
0.9
1
R0.8/P2.7
R0.8/P2.9
R0.8/P2.9
R0.8/P1.7
R0.9/
P2.9
P2.9
R0.8/
P2.9
P2.9
R0.8/
P1.5
R0/P5
R5/
P0
P0
R0/
P5
P5
5
R2.9/P0
A_2.8V
XFC_RST_SENS
PE_DIR0A
PE_DIR0B
PE_EN0
HALL_AD
MSHUT_ON
XLENS_RST_LED
M_5V
HALL_OFFSET
IRIS_CONT1
HALL_GAIN
CAM_DD_ON
STRB_ON
LENS_TEMP
XSTB_FULL
STB_CHARGE
ST_UNREG
D_2.8V
REG_GND
56k
R205
150k
R234
0.5%
22k
R224
0.5%
100k
R225
0.5%
1k
R220
0.5%
R226
16k
0.5%
100k
R223
0.5%
1200
R229
0.5%
180k
R230
0.5%
180k
R231
0.5%
100k
R212
0.5%
47k
R215
0.5%
10k
R213
0.5%
100k
R214
0.5%
R211
4700
4700
0.5%
10k
R241
24k
R242
0.5%
1200
R233
4700
R206
R207
10
10k
R232
0.5%
330
R219
22k
R222
12k
R228
1200
R227
R208
1k
220
R239
0
R253
0
R254
0
R255
22k
R901
C219
10u
6.3V
10uH
L201
10uH
L202
0.022u
C203
C233
0.1u
C213
XX
0.1u
C217
0.1u
C209
0.033u
C208
0.1u
C215
0.1u
C237
10u
C238
1SS401(TE85L)
D201
C231
1u
XX
C216
C218
XX
0.001u
C212
0.01u
C214
0.01u
C211
0.022u
C210
3300p
C207
0.1u
C205
1u
C206
WTGA-UPD16877W
IC204
1
VM1
2
A1_F
A
3
PGND
4
A2_FB
5
A3_ZA
6
PGND
7
A4_ZB
8
VM4
9
IN1
10
EN1
11
IN2
12
EN2
13
IN3
14
EN3
15
IN4
16
EN4
17
B4_ZB
18
PGND
19
B3_ZA
20
VM2_3
21
B2_FB
22
PGND
23
B1_F
A
24
VDD
IC206
LMV324MTX
OUT
1
IN(-)
2
IN(+)
3
VCC
4
IN(+)
5
IN(-)
6
OUT
7
OUT
8
IN(-)
9
IN(+)
10
GND
11
IN(+)
12
IN(-)
13
OUT
14
NJM12902V(TE2)
IC202
1
OUT
2
IN(-)
3
IN(+)
4
VCC
5
IN(+)
6
IN(-)
7
OUT
8
OUT
9
IN(-)
10
IN(+)
11
GND
12
IN(+)
13
IN(-)
14
OUT
FB202
2SB1462L0AS0
Q201
1
4
3
2
2SD2216L0AS0
Q202
1
4
3
2
2SD2216L0AS0
Q204
1
4
3
2
MA4L11100AS0
D202
1
2
3
4
25P
CN903
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
RN4983FE(TPLR3)
Q901
3
5
4
6
2
1
DRIVE-
STRB_ON
FOCUS_A
BIAS-
FOCUS_B
NC
REG_GND
ST_UNREG
REG_GND
M_5V
REG_GND
FOCUS_B
F_SENS_GND
DRIVE+
LENS_TEMP
BIAS+
F_SENS_VCC
STB_CHARGE
HALL-
XSTB_FULL
ST_UNREG
HALL+
ST_UNREG
XFC_RST_SENS
FOCUS_A
D_2.8V SWITCH
IC202
IRIS DRIVE,
IRIS DRIVE,
IC206
FLEXIBLE
(PAGE 4-25)
LND601-625
SL-59
D
8
10
E
H
3
1
11
2
F
I
TY-15 BOARD (3/4)
4
C
B
7
6
05
13
9
A
12
G
5
HALL BIAS CONTROL,
HALL GAIN CONTROL
IRIS DRIVE
GAIN CONTROL
M_5V SWITCH
HALL AMP
IC204
SHUTTER DRIVE,
FOCUS DRIVE
LENS DRIVE(LD BLOCK)
XX MARK:NO MOUNT
0.5%
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