Panasonic TH-42PX20U-P Service Manual page 302

Vda75V
75V
5V
AG_D046
AG_D054
AG_D055
AG_D056
AC_D035
AC_D036
AC_D044
AC_D045
AB_D024
R7229
AB_D025
0
AB_D026
AB_D034
12
120
R7108
0
75V
20
C7107
R7106 19
100V
220k
0.1u
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SIDE
C12
BUFFER
1 1OE VCC 20
2 19
1A1 ^2OE
AD_BD33 R7158 47 R7162 47
3 2Y4 1Y1 18
4 17
1A2 2A4
R7163 47
AF_BD41 R7159 47
5 2Y3 1Y2 16
6 1A3 2A3 15
R7164
AF_BD42 R7160 47
7 14
2Y2 1Y3
8 1A4 2A2 13
R7161 47
AF_BD43 R7165
9 12
2Y1 1Y4
10 GND 11
2A1
BUFFER
1 20
1OE VCC
2 19
1A1 ^2OE
R7174 47 R7178 47
AH_BD22
3 18
2Y4 1Y1
4 17
R7175 47 1A2 2A4
R7179 47
AH_BD23
5 16
2Y3 1Y2
6 15
R7176 47 1A3 2A3 R7180 47
AD_BD31
7 14
2Y2 1Y3
8 13
R7177 47 1A4 2A2 R7181 47
AD_BD32
9 12
2Y1 1Y4
10 11
GND
2A1
BUFFER
1 20
1OE VCC
2 19
1A1 ^2OE
R7190 47 R7194 47
AI_BD11
3 18
2Y4 1Y1
4 17
1A2 2A4
R7191 47 R7195 47
AI_BD12
5 16
2Y3 1Y2
6 15
1A3 2A3
R7192 47 R7196 47
AI_BD13
7 14
2Y2 1Y3
8 13
1A4 2A2
R7193 47 R7197 47
AH_BD21
9 12
2Y1 1Y4
10 11
GND
2A1
13
Vda75V
Vda75V
Vda75V
Vda75V
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
GND
GND
GND
GND
GND
TO
GND
C2-BOARD
(C22)
DL7107
ELKE103FA
1 3
2
R7230
0
C7150
C7176
6.3V 16V
10u 1u
AD_BD36
AG_D043
AF_BD44
AG_D051
R7147
22k
47
AF_BD45
AG_D052
AF_BD46
47
R7148
AG_D053
100k
C7177 C7151
6.3V 16V
1u
10u
AH_BD25
AC_D032
AH_BD26
AD_BD34
AD_BD35 AE_CLKR
AE_NCLKR
AE_CER
AG_D056
C7152
C7178
6.3V 16V AG_D054
10u 1u
AG_D052
AI_BD14
AB_D021
AI_BD15 AC_D045
AG_D046
AB_D022
AG_D043
AI_BD16
AC_D044
AB_D023
AC_D041
AH_BD24
AC_D042
AB_D031
AC_D036
AB_D034
AC_D032
AB_D031
AB_D026
AB_D024
AB_D022
TH-42PX20U-P
C1-BOARD (2 of 2) Schematic Diagram
14
TO
D-BOARD
(D31)
C11
B40
5V
A40
5V
B39
5V
A39
5V
B38
DRVRST
A38
5V DET
B37
GND
A37
GND
B36
GND
A36
GND
B35
NC
A35
NC
B34
NC
A34
3.3V
B33
A33 GND
NC
B32
SDA2
A32
SCL2
B31
GND
A31
GND
B30
A30 DMLR
DMHR
B29
DSLR
A29
DSHR
B28
GND
A28
GND
B27
GND
A27
GND
B26
HZ
A26
GND
B25
CLKR
A25
GND
B24
A24 GND
NCLKR
B23
PCR
A23
BLKR
B22
CER
A22
C7179
GND
50V
100p B21
CLK4R
A21
CLK3R
B20
D5-6
A20
AG_D055
D5-5
B19
D5-4
A19
AG_D053
D5-3
B18
D5-2
A18
AG_D051 D5-1
B17
GND
A17
GND
B16
D4-6
A16
D4-5
B15
D4-4
A15
D4-3
B14
D4-2
A14
D4-1
B13
GND
A13
GND
B12
D3-6
AC_D035
A12
D3-5
B11
D3-4
A11
D3-3
AC_D033
B10
D3-2
A10
D3-1
B9
GND
A9
GND
B8
D2-6
A8
AB_D025
D2-5
B7
D2-4
A7
AB_D023
D2-3
B6
D2-2
A6
AB_D021
D2-1
B5
GND
A5
GND
B4
D1-6
A4
D1-5
B3
D1-4
A3
D1-3
B2
D1-2
A2
D1-1
B1
GND
A1
SOS
SIDE
15