Read Sony DSC-P20 Service Manual online
DSC-P20
4-25
4-26
SY-66 (LCD DRIVE, TIMING GENERATOR) SCHEMATIC DIAGRAM
• See page 4-7 for SY-66 printed wiring board.
• See page 4-44 for waveforms.
LCD DRIVE, TIMING GENERATOR
SY-66 (8/8)
10k
R803
MAKER_RECOG
0
R859
C811
2.2u
D_3.2V
FB803
HDO
0.1u
C822
SI2301DS-T1
Q810
XCAM_SCK
XCS_LCD_DAC
100k
R879
0.47u
C833
0
R856
PANEL_3.2V
BL_L1
0
R840
27k
R816
39k
R834
C836
0.1u
16V
4.7u
C817
R862
±
0.5%
33k
CAM_SO
R861
±
0.5%
220k
0
R858
XX
R852
R903
±
0.5%
33
XX
R857
XX
R813
NJM2125F(TE2)
IC806
1
2
3
45
0.01u
C807
R904
2200
2200
XX
R804
BL_ON
47k
R819
IC801
AN12511A-BB
1
PICTURE
2
XRGB
3
AGC.FIL
TER
4
AGC.OUT
5
AGC.LEVEL
6
COLOR
7
H.FIL
TER.IN
8
G/Y
9
R/R-Y/CR
10
B/B-Y/CB
11
H.FIL
TER.OUT
12
REG.OUT
13
SYNC.SEP
14
EXT.BGP
15
SYNC.IN
16
SYNC.OUT
17
GND1
18
GND2
19
R.DC.DET
20
ROUT
21
G.DC.DET
22
G.OUT
23
B.DC.DET
24
B.OUT
25
VCC2
26
VREF
27
BLACK.LIMIT
28
RGBBLK
29
FRP
30
WHITE.LIMIT
31
SUB.BR
T
.B
32
SUB.BR
T
.R
33
GAMMA1
34
GAMMA2
35
PSIGGRA
Y
36
PRG
37
PSIG.OUT
38
XTEST
39
BRIGHT
40
CONTRAST
41
PSIG.DET
42
SUB.CONT.B
43
SUB.CONT.R
44
VCC1
45
SHA
46
SHB
47
SHG
48
SHR
BL_VO-
FB801
FB802
C812
2.2u
0.1u
C821
2SA1832F-Y/GR(TPL3)
Q811
470k
R880
33k
R854
CN805 24P
1
TESTL
2
COM
3
VST
4
VCK
5
EN
6
DWN
7
VDD
8
VSS
9
VDDG
10
VSSG
11
CS
12
WIDE
13
HST
14
REF
15
SDUT
16
CRext
17
HCK2
18
HCK1
19
PSIG
20
G
21
R
22
B
23
RGT
24
TESTR
REG_GND
4700
R810
C830
1u
0.001u
C829
PANEL_B-Y
47k
R818
R830
220
XX
R868
2.2u
C801
20V
0.1u
C816
33k
R881
CN806
6P
1
2
3
4
5
6
0
R822
10u
C818
6.3V
27k
R801
0.01u
C808
L803
47uH
56k
R883
XX
R814
XP4601-TXE
Q806
3
5
4
6
2
1
CXD3510R-T4
IC804
XCLP
1
SHR
2
SHG
3
SHB
4
SHA
5
GND
6
SBLK
7
PRG
8
FRP
9
RGT
10
HCK1
11
HCK2
12
NC
13
NC
14
NC
15
HST
16
WIDE
17
TEST
18
VDD
19
TESTI
20
DWN
21
EN
22
VCK
23
VST
24
SLSH0
25
CKO
26
CKII
27
TEST
28
SLSH1
29
TEST
30
GND
31
RPD
32
SLSH2
33
XVD
34
HPOS0
35
HPOS1
36
XHD
37
HPOS2
38
XWIDE
39
HPOS3
40
NT/PAL
41
HPOS4
42
VDD
43
VREV
44
HDO
45
HREV
46
COMTST
47
XCLR
48
68k
R848
330k
R845
XX
R882
220k
R836
27k
R846
XX
R806
47k
R833
XP4601-TXE
Q805
3
5
4
6
2
1
XX
R878
150k
R885
R872 XX
PANEL_V
39k
R843
0.1u
C804
100uH
L801
PANEL_13.5V
C813
2.2u
UN9213J-(K8).SO
Q808
XX
R844
10k
R835
PANEL_Y
XX
C815
VG
PSIG
0.33u
C831
22k
R837
XX
R807
6.8uH
L804
1SV290(TPL3)
D802
3300p
C826
47k
R823
0
R808
0.1u
C823
0
R886
22k
R824
0
R867
0.01u
C809
15k
R821
47k
R847
0.1u
C802
XX
C814
0
R802
33k
R841
R829
220
R828
220
0
R887
R849
10k
XX
R805
XX
C810
0.1u
C805
33k
R815
XX
R839
C806
XX
XX
R875
XP4601-TXE
Q804
3
5
4
6
2
1
100k
R842
0.01u
C824
10u
6.3V
6.3V
C832
100k
R860
XX
R874
MB40D001PFV-G-BND-ER
IC802
1
BRIGHT
2
COLOR
3
BRT_R
4
BRT_B
5
CONTRAST
6
B.LIMIT
7
VREF
8
VCO
9
COM
10
BL_LEV
11
P_GRAY
12
BRT_TST
13
VDD
14
VCC
15
H_REV
16
V_REV
17
NTSC
18
COMTST
19
SCK
20
SI
21
SO
22
EN
23
VDDA
24
VSS
4.7u
C825
0
R866
100k
R809
1M
R832
HSY
2200p
C803
XX
R812
10k
R851
R817
15k
XX
R876
XX
D801
XX
R826
MA8036-TX
D803
56p
C827
XX
R850
10k
R820
0
R853
1k
R855
XX
R873
100uH
L802
XX
R838
0.1u
C820
MA8068-L-TX
D804
10k
R827
PANEL_R-Y
NJM2904V(TE2)
IC803
1
OUT
2
IN(-)
3
IN(+)
4
GND
5
IN(+)
6
IN(-)
7
OUT
8
VCC
XX
R811
XX
Q807
XX
R890
XX
R889
XX
R892
XX
R891
XX
R899
XX
R898
XX
R897
XX
R896
XX
R894
XX
R895
XX
R902
XX
R901
Q816
XX
XX
R900
A_4.9V
Q813
UN9213J-(K8).SO
2SD2216J-QR(K8).SO
Q812
1u
20V
C837
BL_L2
2.2u
20V
C838
Q814
2SB1218A-
QRS-TX
Q817
2SB1218A-QRS-TX
±
0.5%
33
R907
1k
R905
R906
10k
2200
R869
10k
R908
0.1u
C839
1
A
D901
BACK LIGHT
R909
100
R910
10k
VR
PSIG
VG
VB
VB
VR
COLOR
CONT
BRT_B
BRT
BRT
BRT_R
COLOR
COM
VCO
VREF
CONT
B_LIM
SI
SCK
SCK
SI
PRG
XCLP
TEST
P_XVD
SHR
SHG
SHB
SHA
P_XHD
XCLP
PRG
FRP
V_REV
H_REV
H_REV
XHDO
V_REV
NTSC
SBLK
COMTST
NTSC
COMTST
FRP
SBLK
B_LIM
COM
SHR
SHG
SHB
SHA
BR
T_B
BR
T_R
VCOM
VREF
TEST
VCOM
VCO
P_GRA
Y
P_GRAY
EN
EN
P_XVD
P_XHD
XHDO
PSIG
VG
PANEL_3.2V
NC
BL_FB
BL_H
NC
BL_L
VCC
13
2
4
F
12
5
G
K
11
8
7
6
E
05
B
H
SY-66 BOARD (8/8)
I
16
9
17
3
D
18
C
15
10
J
14
LCD901
COLOR
LCD
UNIT
1.5INCH
PANEL UNIT
SY-66 BOARD (3/8)
10
11
SY-66 BOARD (4/8)
SY-66 BOARD (7/8)
12
13
SY-66 BOARD (5/8)
SY-66 BOARD (7/8)
14
IC804
LCD TIMING GENERATOR
IC801
LCD DRIVE
VREF AMP,VCO
IC803
IC802
EVR(D/A CONVERTER)
IC806
XX MARK:NO MOUNT
-REF.NO.:1,000 SERIES-
LCD DRIVE,TIMING GENERATOR
(RGB,TG BLOCK)
(RGB,TG BLOCK)
CHROMA
VIDEO SIGNAL
REC
Y
SIGNAL PATH
PB
Q808,810
B+ SWITCH
Q804,805
PSIG DRIVE
COM DRIVE
Q812,814,817
BACK LIGHT
DRIVE
BACK LIGHT SWITCH
BACK LIGHT
CONTROL
REF.VOLTAGE GEN.
NO MARK:REC/PB MODE
3
3
0
0
6.8
7
7.6
13.5
6.4
13.5
7
7.2
13.5
6.5
6.6
6.9
6.9
6.9
6.9
6.9
6.9
2.9
3
7
2.9
1.3
2.1
0
1.6
1.6
2.9
0
0
0
0
0.7
2.9
2.5
1.5
1.5
1.5
2.9
1.8
13.5
3
1.1
1.6
1.4
1.9
1.3
1.3
1.5
1
7.1
0
13.5
7.1
3.9
2.3
2.3
7.1
2.7
3
3
3
3
0
3
3
3
3
0
0.3
0
1.5
2.7
3.1
3
3.1
0
0
0
0
0
0.2
0
3
1.5
1.5
0.1
0
0
3
3.1
2.9
1.7
1.5
2.9
0
0
0
3
0
3
1.5
1.5
4.9
2.7
2.7
3.1
2.1
2.6
2.1
2.7
2.1
2.7
-1.3
0.1
3
1.6
2.9
3.1
3.1
3.1
3.1
3.1
2.9
0.5
3.1
0
2.5
1.3
1.1
1.9
1
1.4
2
1.1
1
0.5
2.9
21
20
19
18
16
15
17
24
25
23
22
1.6
1
0
1.8
1.8
0
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