Read Sony DSC-P20 Service Manual online
DSC-P20
3-10
3-9
3-5. MODE CONTROL BLOCK DIAGRAM
S202
33
6
16
34
19
95
96
20
39
80
12
73
97
75
76
78
79
32
14
77
8
6
24
35
18
4
3
SY-66 BOARD (4/6)
19
TO
LCD BLOCK
(SEE PAGE 3-13)
LCD BLOCK
(SEE PAGE 3-13)
ZOOM
S261
S262
T
W
CN703 (2/3)
BT201
LITHIUM
BATTERY
D253
(FLASH/CHARGE (AMBER) )
S201
05
IC402
FRONT CONTROL
(SEE PAGE 4-24)
CN201 (2/3)
LED
DRIVE
Q253
BATTERY
CHARGE
DETECTOR
IC403
INITIAL RESET
BACK UP VCC
(SEE PAGE 4-23)
5
7
3
D408
EVER 5.5V
MODULATOR
Q404, 415
S
+
–
13
TO
CAMERA BLOCK2
(SEE PAGE 3-5)
CAMERA BLOCK2
(SEE PAGE 3-5)
4
TO
CAMERA BLOCK1
(SEE PAGE 3-4)
CAMERA BLOCK1
(SEE PAGE 3-4)
10
TO
CAMERA BLOCK1
(SEE PAGE 3-4)
CAMERA BLOCK1
(SEE PAGE 3-4)
BT901
BATTERY
TERMINAL
BATTERY
TERMINAL
14
TO
CAMERA BLOCK2
(SEE PAGE 3-6)
CAMERA BLOCK2
(SEE PAGE 3-6)
20
TO
USB/FLASH
BLOCK
(SEE PAGE 3-11)
USB/FLASH
BLOCK
(SEE PAGE 3-11)
DC IN
J001
VL 3V
XRESET
XLENS_CAP_ON
VRO
VOUT
RESET
VBAT
VIN
XSTB FULL
X401
10MHz
XCHARGE/XSTB LED
85 KEY AD3
STB CHG
XSTB FULL
10MHz OUT
10MHz IN
82 KEY AD0
83 KEY AD1
XRST FLASH
9
XLENS_CAP_ON
XREST
BACK UP VCC
EVER B+
SYS V
XRST SYS
USB JACK IN
LANC IN
LANC OUT
LANC JACK IN
MELODY ENV
MELODY
XMS IN
MC WAKE UP
MC HELP
HI SI
HI SO
BATT SI
BATT SO
89
DRY BATT IN1
17
DRY BATT IN2
XHI SCK
PAL/XNTSC
BATT/XEXT
LANC OUT
CPC IN
LANC IN
XRST FLASH
SYS V
XRST SYS
USB JACK IN
BEEP OUT
BZ701
BUZZER
XMS IN
XMC NMI
XMC HELP
HI SI
PAL/XNTSC
DD-158 BOARD (1/2)
CN002
(SEE PAGE 4-35, 36)
CN003 (1/2)
CN704 (1/2)
CN004 (1/2)
CN705 (1/2)
CN001
BATT UNREG
ACV UNREG
BATT SIG
BATT SIG
BATT/XEXT
BATT/XEXT
BATT SIG
DRY BATT IN1
DRY BATT IN1
DRY BATT IN2
DRY BATT IN2
BATT/XEXT
Q405
1
18
10
9
39
13
1
9
31
10
30
1
3
2
5
DRY BATT DET1
4
DRY BATT DET2
3
S252, 253
FUNCTION
KEY
100
99
X402
32.768kHz
32kHz OUT
32kHz IN
XRST SYS
BUZZER
AMP
Q703, 704
DRY
BATTERY
DETECT
Q505, 506
74
XCS MC
XMC CS
HI SO
XHI SCK
PAL/XNTSC
JK-215 BOARD (2/3)
(SEE PAGE 4-29)
S251
CONTROL
11
10
25
7
8
86
(SHUTTER)
(POWER LED (GREEN) )
POWER
ON/OFF
MODE
DIAL
XPWR LED ON
XPWR ON
XPB ON
MODE DIAL
XAE LOCK ON
XSHTR ON
XPWR LED ON
XPWR ON
XPB ON
MODE DIAL
CN708
9
11
12
14
4
XMOVIE ON
2
1
3
88
XSET UP ON
XAE LOCK SW
XSHTR ON
XSET UP ON
CONTROL SWITCH BLOCK
(SEE PAGE 4-23)
6
7
7
1
2
2
9
CN702
1
12
7
RESET
LENS COVER
OPEN/CLOSE
OPEN/CLOSE
STB CHG
IC402
4
REC/PB
2.7 Vp-p
10 MHz
IC402
ol
REC/PB
32.768 kHz
3.0 Vp-p
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