Sony VPL-PX20 Service Manual page 124

CN803
1
1
TO QB BOARD
2
CN1203
3
CN805
4
3
TO QC BOARD
CN1804
5
A B
R/G/B MON
QA(INPUT SELECT)
IC823
RGB SELECT
BR R
1 BR OUT 10
A12 AR
5 AR SW3 11
B12 BNC R V-R
7 BNC R SW1 12
A13
SW2 13
B13
IC824
RGB SELECT
BG G
1 BG OUT 10
A16 AG
5 AG SW3 11
B16 BNC G V-G
7 BNC G SW1 12
A17
SW2 13
B17
IC825
RGB SELECT
BB B
1 BB OUT 10
A20 AB
5 AB SW3 11
B20 BNC B V-G
7 BNC B SW1 12
A21
SW2 13
B21
A23 AH
B23
IC805
A25 AV CS OUT
B25 CS CV
1 2
OUT IN
A1 IRDA Q809
B1
BUFF
A2 MS5V
B2
A3 DS2-
IC811
B3 SYNC SW Q821
A4 DS2+ BH H
2 X0 OUTX 13
B4 AH BUFF
14 X1
CS
15 X2
BNCH
11 X3
A6 AUDIO AL Q824
B6 BV V
1 Y0 OUTY 3
BUFF
A9 AUDIO AR AV
5 Y1 SW1 10
B9 BNCV
2 Y2 SW2 9
4 Y3 SW3 6
A12 BR
B12
A13
B13
A16 BG
B16
A17
B17
A20 BB
B20
A21
B21
A23 BH
B23
A25 BV
B25
A1 IRDB
B1
A2 SUB5V
B2
A6 AUDIO BL IRDA,IRDB,DS2-,DS2+
B6
A9 AUDIO BR
B9
C
QA QA
IC808
R DRV
IC801
VIDEO SW,AMP
R MON OUT R
3 6
R
3 A1 OUT1 1
SHDN 7
4 B1
IC809
G DRV
OUT G
G MON
3 6
G
6 A2 OUT2 8
SHDN 7
OUT B
5 B2
IC810
B DRV
B MON
3 6
B OUT H
12 A3 OUT3 10
SHDN 7
11 B3 A/B 16
R,G,B OUT V
A/B
AUDIO OL
AUDIO OR
Q822,823
H PEAK
HOLD
Q825,826 BNC R/G/B
V PEAK
HOLD
G
V-R,V-G,V-B
IC813 IC814
COMP BUFF
H
5 IN2- OUT2 3 1 1A 1Y 3
6 IN2+
V
7 IN1- OUT1 2 6 2A 2Y 5
1 IN1+
RE H
RE V
Q802
SW
Q808
SW
8-4 8-4
D E
R,G,B
CN806 BNC R/G/B
A9 BNC H/V
B9
IC802 IC803(1/2)
A10
SYNC PROCESS BUFF W/SW
B10
G
4 G IN CLP 17 6
A13
B13 REH COMP/H HD
6 15 2
IN -OUT
A14
B14 REV VD
8 V IN 13 4
+OUT
A17
18 H POL 8
B17
19 V POL
A18 1G
1
B18
IC803(2/2)
A21
IC804
4 BUFF W/SW
V-CLP OUT
B21
A22 TO QC BOARD V-CLP
1 1A 1Q 13 15
CN1805
B22
V-HD
17
A24
B24 V-VD
13
A25 Q810
B25
INV 11
A1 2G
19
B1
A2
B2
A5
B5
A6
B6
R,G,B
BNC,R/G/B
Q805
G G
BUFF
V-R,V-G,V-B
IC806
D/A CON.
3 DAC4 SW1 1
A/B
4 DAC3 SW2 2
BNC H/V MON OUT OFF INPUTA SW1
5 DAC2 SW3 3
INPUTA SW2
6 DAC1 SW4 4
SDA 14
7 DAC0 SCL 15
Q813
BNC-R
BUFF
Q812
BNC-G
BUFF
Q811
BNC-B
BUFF
IC807
D/A CON.
2 SW0 SDA 14
D871 SCL 15
3 DAC4
4 DAC3
SRS ON
D872 5 DAC2
SPEAKER MUTE
6 DAC1
IC817 +5V REG
+5V O
IC818 -5V REG
-5V O I
IC816 +9V REG
+9V O
F
CN801
R A12
B12
G A10
B10
B A8
B8
14
BNC R A35
B35
18
BNC G A33
B33
16
BNC B A31
B31
12
BNC H A29
B29
BNC V A27
B27
CLP A1
5
B1
H A6
3 6
B6
V A4
7 TO BB BOARD
B4
CN303
9
AUDIO MUTE A14
SCLK B14
SDAT A15
AUDIO CE B15
US+ A17
B17
US- A18
B18
USB P.FLG B19
DS1+ A20
DS1- B20
MS P.ENA A21
US VBUS B21
USB P.ENA B22
SUB 5V A23
CN802
RGB SYNC A17
B17
V-R A19
B19
V-G A21
B21
V-B A23
B23
V-HD A25
B25
V-VD A26
B26
V-CLP A28
B28
R/R-Y A7
B7
G/Y A9
B9
7
B/B-Y A11
B11 TO BB BOARD
CN305
H A13
B13
V A15
B15
SDA100K A30
SCL100K B30
YC/OTHER A5
CV/OTHER B5
IRD A A1
IRD B B1
DS2+ A3
B3
DS2- A4
B4
+6V A32
I
+10V A34
-6V B34
I
MS 5V USP P.FLG,MS P.ENA,USB P.ENA,SUB5V,MS5V
SUB 5V US+/-,DS1+/- US VBUS,SUB5V
AUDIO MUTE,SCLK,SDAT,AUDIO CE
INPUTA AW1/SW2
SRSON,SPEAKER MUTE
AUDIO OL/OR
AUDIO AL/AR,BL/BR
VPL-PX20/PX30
G H