Read Sony DSC-P20 Service Manual online
DSC-P20
4-17
4-18
SY-66 (VIDEO, MEMORY) SCHEMATIC DIAGRAM
• See page 4-7 for SY-66 printed wiring board.
• See page 4-44 for waveforms.
VIDEO, MEMORY
SY-66 (4/8)
22u 6.3V
C318
2SB1462J-QR(K8).SO
Q307
2200
R323
2200
R327
2200
R325
FB304
PANEL_B-Y
2200
R319
PANEL_Y
PANEL_R-Y
XX
C339
820
R316
XX
C338
XX
R317
XX
C337
XX
L305
0.1u
C348
XX
R349
VOUT_ON
0.1u
C335
47u
6.3V
C332
47uH
L307
LCD_POWER
UN9111J-(K8).SO
Q311
UN9214J-(K8).SO
Q312
2SB1462J-
QR(K8).SO
QR(K8).SO
Q306
2SB1462J-QR(K8).SO
Q305
2SB1462J-
QR(K8).SO
QR(K8).SO
Q308
2SB1462J-
QR(K8).SO
QR(K8).SO
Q309
±
0.5%
1200
R339
±
0.5%
100
R342
2SB1462J-QR(K8).SO
Q313
±
0.5%
100
R359
±
0.5%
4700
R358
±
0.5%
820
R340
0
R312
XX
R314
XX
R313
C321
XX
XX
Q302
*
2200
R360
HN1C01FE-Y/GR(TPLR3)
Q304
6
2
1
3
5
4
XX
Q303
6
2
1
3
5
4
MA111-(K8).S0
D302
MA111-(K8).S0
D301
IC302
MB81F641642J-15PB-ER-WJ
1
VCC
2
DQ0
3
VCCQ
4
DQ1
5
DQ2
6
VSSQ
7
DQ3
8
DQ4
9
VCCQ
10
DQ5
11
DQ6
12
VSSQ
13
DQ7
14
VCC
15
DQML
16
WE~
17
CAS~
18
RAS~
19
CS~
20
A13
21
A12
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VCC
28
VSS
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC
37
CKE
38
CLK
39
DQMU
40
NC
41
VSS
42
DQ8
43
VCCQ
44
DQ9
45
DQ10
46
VSSQ
47
DQ11
48
DQ12
49
VCCQ
50
DQ13
51
DQ14
52
VSSQ
53
DQ15
54
VSS
±
0.5%
150
R361
6.3V
C654
XX
A_4.9V
A_3.2V
XX
R658
XX
R657
R655
XX
CPC_C
R652
XX
VDR651
XX
XX
R654
XX
L653
CPC_Y
6.3V
XX
C659
XX
C656
R660
0
XX
IC651
1
Y
-IN
2
GND
3
V
-OUT
4
Vsag
5
VCC
6
PowerSave
7
C-MUTE
8
C-IN
6.3V
XX
C660
R659
0
XX
Q651
4V
XX
C657
C658
XX
XX
R656
V_OUT
D_3.2V
27-1
27-2
27-3
27-4
27-5
27-6
REG_GND
CNT_C
29-1
29-3
29-2
1
A
A_3.2V
0
C655
0
C653
0
C322
PE_AQ13
PE_AQ12
PE_AQ10
PE_AQ00
PE_AQ01
PE_AQ02
PE_AQ03
PE_AQ08
PE_AQ07
PE_AQ06
PE_AQ05
PE_AQ04
PE_AQ09
PE_DQ15
PE_DQ14
PE_DQ13
PE_DQ12
PE_DQ11
PE_DQ10
PE_DQ09
PE_DQ08
PE_DQ00
PE_DQ02
PE_DQ03
PE_DQ04
PE_DQ05
PE_DQ06
PE_DQ07
PE_QDML
PE_XWE
PE_XCAS
PE_XRAS
PE_QDMH
PE_AQ11
PE_QCLK
PE_DQ01
PE_XCS0
1608
64M SDRAM
IC302
13
2
4
F
12
5
G
K
11
8
7
6
E
05
B
H
SY-66 BOARD (4/8)
I
9
3
D
C
10
J
14
6
SY-66 BOARD (2/8)
17
SY-66 BOARD (5/8)
11
SY-66 BOARD (8/8)
30
SY-66 BOARD (7/8)
SY-66 BOARD (7/8)
31
SY-66 BOARD (3/8)
27
29
SY-66 BOARD (3/8)
VIDEO,MEMORY(CAMERA DSP)(P2K BLOCK 2/2,VI BLOCK)
-REF.NO.:1,000 SERIES-
XX MARK:NO MOUNT
XX MARK:NO MOUNT
Q304,313
CHROMA CONTROL
BUFFER
BUFFER
Q307-309
BUFFER
Q311,312
B+ SWITCH
CHROMA
SIGNAL PATH
PB
Y
REC
VIDEO SIGNAL
NO MARK:REC/PB MODE
7
6
5
1.6
1.2
0.7
0.2
0.1
0.1
0
0.6
0
0.6
2.6
3
3.1
0
0.8
0.2
0.9
0.3
0.9
0.3
Note:Resistors are mounted to the location
where C322,C653 and C655 are printed.
where C322,C653 and C655 are printed.
(Note)
(Note)
(Note)
Click on the first or last page to see other DSC-P20 service manuals if exist.