Panasonic TH-42PX20U-P Service Manual page 307

14.61. C3-Board (1 of 2) Schematic Diagram
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TO
A
D-BOARD
C31
(D33)
5V
5V A1
5V
A2
5V
NC
A3
5V DET
LED_G
A4
LED_R
GND
A5
REMOCON
GND
A6
KEY_SW
STB5V
OPT A7
GND
A8
DRVRST
DMLL
A9
DMHL
DSLL
A10
DSHL
HZ
A11
GND
CLKL
A12
GND
GND
A13
NCLKL
PCL
A14
BLKL
B CEL
A15
GND
CLK4L
A16
CLK3L
D22-6
A17
D22-5
D22-4
A18
D22-3
D22-2
A19
D22-1
GND
A20
GND
D21-6
A21
D21-5
D21-4
A22
D21-3
D21-2
A23
D21-1
GND
A24
GND
D20-6
A25
D20-5
D20-4
A26
D20-3
D20-2
A27
D20-1
GND
A28
GND
D19-6
A29
D19-5
D19-4
A30
D19-3
D19-2
A31
D19-1
C
GND
A32
GND
D18-6
A33
D18-5
D18-4
A34
D18-3
D18-2
A35
D18-1
GND
A36
GND
D17-6
A37
D17-5
D17-4
A38
D17-3
D17-2
A39
D17-1
GND
SOS A40
D
E
TH-42PX20U-P
C3-BOARD (1 of 2) Schematic Diagram
1
C3-BOARD TNPA3061 (1/2)
DL7508
ELKE103FA
1
2
R7547
22k
R7548
100k
B1
DL7507
ELKE103FA
B2
1
2
B3
B4
B5
B6
B7
B8
B9
B10
B11
AE_CLKL
AI_D224
B12
AE_NCLKL
B13
AE_PCL AI_D225
B14
AE_CEL
AI_D226
B15
C7575
AH_D214
B16
AI_D226 50V
AI_D225 100p
B17
AI_D224
AI_D223
B18
AI_D222
AI_D221
B19
B20
AH_D216
AH_D215
B21
AH_D214
AH_D213
B22
AH_D212
AH_D211
B23
AH_D215
B24
AF_D206
AF_D205
AH_D216
B25
AF_D204
AF_D203
B26
AF_D204
AF_D202
AF_D201
B27
AF_D205
B28
AG_D196
AG_D195
B29
AG_D194
AG_D193
B30
AG_D192
AG_D191
B31
B32
B33
B34
B35
B36
AF_D206
B37
B38
AG_D194
B39
AG_D195
B40
TERM
AG_D196
2
5V
3
C7510
R7542
1u
16V 10k
D7502
R7541
MA3X152K0L
10k
Q7561
2SB0709A0L
D7501
MA3X152K0L
3
AK_REMOCON
AK_KEY_SW
AK_OPT
BUFFER
1 1OE VCC 20
2 19
1A1 ^2OE
R7558 R7562
AB_BD81 47
3 2Y4 1Y1 18
47
4 17
1A2 2A4
R7563 47
R7559
AB_BD82 47
5 2Y3 1Y2 16
6 15
1A3 2A3
R7560 R7564 47
AB_BD83 47
7 2Y2 1Y3 14
8 13
1A4 2A2
R7565 47
R7561
AA_BD71 47
9 2Y1 1Y4 12
10 11
GND
2A1
BUFFER
C7551
1 1OE VCC 20
2 1A1 ^2OE 19
R7574 R7578 47
AA_BD72 47
3 2Y4 1Y1 18
4 17
1A2 2A4
R7575 R7579 47
AA_BD73 47
5 2Y3 1Y2 16
6 15
1A3 2A3
R7576 R7580 47
AD_BD61 47
7 2Y2 1Y3 14
8 13
1A4 2A2
R7577 R7581 47
AD_BD62 47
9 2Y1 1Y4 12
10 11
GND
2A1
BUFFER
1 20
1OE VCC
2 19
1A1 ^2OE
R7590 47 R7594 47
AD_BD63
3 18
2Y4 1Y1
4 17
1A2 2A4
R7591 47 R7595 47
AC_BD51
5 16
2Y3 1Y2
6 15
1A3 2A3
R7592 47 R7596 47
AC_BD52
7 14
2Y2 1Y3
8 13
1A4 2A2
R7593 47 R7597 47
AC_BD53
9 12
2Y1 1Y4
10 11
GND
2A1
3
TO
K-BOARD
(K24)
C44
R7544
10k
R7543
10k Q7562
2SB0709A0L
D7504
MA3X152K0L
R7615
0
AJ_LE5
C7550
C7572
16V 6.3V AJ_LE6
1u
10u
AB_BD84
AI_D221 AJ_LE7
AB_BD85
AI_D222
AB_BD86 AJ_LE8
AI_D223
AA_BD74
AH_D211
C7573
16V 6.3V
1u
10u
AA_BD75
AH_D212
AA_BD76
AH_D213
AD_BD64
AF_D201
AD_BD65
AF_D202
TO
DATA
TERM
DRIVER
C7574
C7552
6.3V
16V
1u 10u
AD_BD66
AF_D203
AC_BD54
AG_D191
AC_BD55
AG_D192
AC_BD56
AG_D193
TO
DATA
TERM
DRIVER
CLO
1
1OE
AE_PCL
2
1A1
R7606
3
2Y4
47
AE_CLKL
4
1A2
R7607
5
2Y3
47
6
1A3
R7608
7
2Y2
47
AE_NCLKL
8
1A4
R7609
9
2Y1
47
10
GND
R7624
120
R7589
120
4
123