Sony CyberShot DSC-P72 Service Manual page 68

COVER
COVER
For Schematic Diagram
• Refer to page 4-39 for printed wiring board.
1 2 3 4
SY-85 BOARD(5/10)
LCD DRIVE,TIMING GENERATOR(RGB-TG BLOCK)
A
XX MARK:NO MOUNT
PANEL_13.2V
23
PANEL_2.9V
(9/10)
REG_GND
B
C
D
L801
R801
22uH
0
} 10%
C802
68u
6.3V
B
TA
PANEL_B
C808
0.01u
PANEL_G
C809
16
E 0.01u
(3/10)
PANEL_R
C810
PANEL_V 0.01u
HDO
F
CL803
VG
G
CL804
20
(4/10) VCOM
XCS_PANEL_TG
L802
10uH
14
(3/10)
14
H
XRST_SYS
(4/10)
14
(6/10)
I
1
(1/10)
R856
0
1 XCAM_SCK
(2/10)
J
CAM_SO
1
(4/10)
K
L
16
4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS
5 6 7 8
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
C818
L803
2.2u C817
10uH 25V 0.01u
TA A
C815
C812
R808
2.2u
0.01u
15k
B
36 35 34 33 32 31 30 29 28 27
R805
470k 14
C BG/NC
1.2
XC_SAVE
XC.SAVE
2.9
XSCK
2.9
XTG_SO
SI
2.0 IC801
XCS
2.9
LCD DRIVE
Vcc1
2.9
R803
XX IC801
TRAP_ADJ
2.9 RB5P004AM1
LPF_ADJ
1.5 15
XP_SAVE
XP.SAVE
2.9
B_IN
1.8
16
G_IN
1.8
R_IN
1.8
17
1 2 3 4 5 6 7 8 9 10
R810
47k
R812
22k
C807 C806
0.1u XX
C832
100p
B
R848
10
36 35 34 33 32 31 30 29 28 27
19
BGP 2.8
XCLP
PRG 2.9
PRG
BLK 0
SBLK
FRP 1.5
FRP
IC802
1.5
PFRP
PFRP
2.9
TIMING GENERATOR
XSCK
2.9
IC802
VDD
CXD3512R-T4
2.9
XCS
1.9
XTG_SO
SO
R1.2/P0.5
SI
20
VDO
2.9
XVD
18
1 2 3 4 5 6 7 8 9 10
4-15
SY-85 BOARD SIDE A SY-85 BOARD SIDE A SY-85 BOARD SIDE B SY-85 BOARD SIDE B
9 10 11
R829
100k
V_P
26 25
13
POFF
7.0 V_B
C821
VB 2.2u
B
1.7
B_DC_DET
12 7.0 V_G
C822
C824
VG 2.2u
XX
B
1.7
G_DC_DET
7.0 V_R
C823
VR
2.2u
11
B
1.7
R_DC_DET
VST
VCK
GND2
EN
GND1
DWN
VREF
13.3
Vcc3
COM_OUT
WIDE
COM_IN HST
R820
100k
R824
100k
HCK1
R826
HCK2
XX
11 12
R815
D802 R816
100k
C816 1SV290(TPL3) 100k
0.1u RGT
B
R814
C819
R813 1M
0.001u
68k
C820
L804
100p
6.8uH
CH
13.3
2
7.0
6.5
Q802
26 25
XP4601-TXE
R828
47k
Q802,804
0
VST PSIG DRIVE
VST
1.5
VCK
VCK
2.6
EN
EN
2.9
DWN
DWN
0.2 WIDE
WIDE
2.9
VDD
0
HST
HST
1.5 HCK2
HCK2
1.5 HCK1
HCK1
2.9
RGT
RGT
2.9 POFF
POFF
NC
SIGNAL PATH
11 12
REC
PB
12 13 14 15
R854
13.0
10k 2
13.3 13.3
0.1
Q805
UMF18NTR 2.9
D806 SP+
SWITCH
MA111-(K8).S0
SP-
R830
1k
CN702 39P
1 REG_GND
2 SP-
C825
C826
0.01u
XX 3 SP+
4 REG_GND
LI_3V
C829
C827 5 LI_3V
0.1u
4.7u
B
6 REG_GND
7 COM
8 VST
9 VCK
10 EN
11 DWN
12 VDD
D803
C830
13 REG_GND
MA8036-TX
1u
R837
14 VDDG
150k
15 REG_GND
D804 XX
16 WIDE
17 HST
18 REF
19 CREXT
20 HCK2
21 HCK1
22 PSIG
23 VG
24 VR
25 VB
26 RGT
27 REG_GND
BL_THH
28 BL_THH
BL_THL
29 BL_THL
BL_H
30 BL_H
BL_L
R831
R845 31 BL_L
47k XX
32 REG_GND
KEY_AD1
Q804
33 KEY_AD1
XP4601-TXE
KEY_AD0
7.5 13.3 34 KEY_AD0
4 6
R847
MODE_DIAL
82k
5 2 35 MODE_DIAL
KEY_AD3
7.0 7.5 36 KEY_AD3
3 1
7.0 37 REG_GND
7.0 XRST_IN
1.6 38 XRST_IN
6 4
1.0 39 REG_GND
6.5
5
1 3
C831
R846
0.1u C833
6800
B 0.1u
B
LI_3V
LI_3V
KEY_AD0
KEY_AD0
KEY_AD1
KEY_AD1
KEY_AD3
KEY_AD3
MODE_DIAL
MODE_DIAL
XRST_IN
XRST_IN
BL_THH
BL_THH
R851 BL_THL
10k BL_THL
BL_H
BL_H
BL_L
BL_L
BL_LEVEL
BL_ON
VIDEO SIGNAL
AUDIO
CHROMA Y Y/CHROMA SIGNAL
4-16
DSC-P72
16
24
(7/10)
TO
CONTROL SWITCH
BLOCK(SW-391)
(PAGE 4-31
of LEVEL 2)
25
(6/10)
26
(9/10)
SY-85 (5/10)