Panasonic TH-42PX20U-P Service Manual page 153

101
102
103
104
105
106
MAIN9V
R3140
47k
C3041
R3141
16V
47k
0.1
STB5V
C3040
16V 0.1
IIC SW
AC_SCL3
1 8
VDD
2 7
HI:ON
3 6
4 VSS 5
AC_SDA3
IC3517
C0JBAS000109
C3042
16V 0.1
1 8
R3142
2 7
SRQ
10k
EEPROMJ
3 6
SCL
8
4 SDA 5
DDC_SDA
JS110
7
DDC_SCL
IC3699
JS104
6
AC_SDA3
C3EBDC000046
5
AC_SCL3
4
3
DDC_WP
2
1
DG31
Configuration ROM
2kbit
107
108
JS4025
AB_SDA3 AC_SDA3
AB_SCL3 AC_SCL3
JS4024
109
110
111
TH-42PX20U-P
DG-BOARD (7 of 7) Schematic Diagram
55 56
IC3003
IC8071 sync input select
C1AB00000441
(GC/PC)
C0JBAR000241
L8002 1
SW1
10
R8505 0 9V
1 16 2
Y0 VDD SW0
C8332 C8334
2 15 3
Y2 X2 16V 50V DAC4=CS(S)
R8014 47
3 14 0 0.1 4
Y X1 DAC3=FAN_CONT
4 Y3 13 R3082 5
X DAC2=LPF(S)
100
R8008 0 5 12 R8015 0 6
Y1 X0 DAC1=SYNC_INH(S)
6 11 R462 7
INH X3 DAC0
10k
7 10 8
VEE A GND
8 9
VSS B
R8020
5.6k
GC PC
C3011
16V
0.1
R8099
R3028 R3032 STB5V 10k
10k
0
1 16
SW1=SL2_DET VCC
2 15
SW0=SL1_DET SCL
R3033 3 14
DAC4=IICSW SDA
0 R3039 330
R3026 4 13
DAC3=IICSW SAD2
10k R3040 330
5 12
DAC2 SAD1
R3041
6 11 330
DAC1 SAD0
R3042
7 10 0
DAC0 SW3
8 9 R3043 0
GND SL3_DET=SW2
IC3004
C1AB00000454
EX.I/O
HD
R8096
JW
VD
C8008
C8336
R8022
50V
50V
2.2k
470p
0.01
57 58
G-IN select
L3005
10
EX.I/O Green input / conposite sync(from HD input)
C3010
16V
0.1
9V
16
VCC
15
SCL
14 C8050
SDA
R3034 330 50V
13
SAD2 0.01
R3035
12 330
SAD1
IC8008
11 R3036 330
SAD0
10
SW3
C0JBAR000111
9
SW2
NP
C8047
25V
22
R8098
10k
C8051
16V
HI:ON 0.1
1 20
H.STATE CLP_TIM
2 19
V.STATE V.POL
IC8009
3 18
G_SEP_FIL H.POL
C8366 50V
C0JBAS000109 R8034 50V 4 17
G_IN CLP_OUT
100k
0.01
5 16
GND VCC
R8027 C8347
C8341 16V
330
16V 16V 10
10 6 15
COMP/H_IN HD-
7 14
COMP/H_DEP HD+
R8028
C8348
330
6.3V 4.7 8 13
VERT_IN VD+
JS8093
9 12
R8024 R8030 VERT_DET D-GND
D8302 D8304
2.2k 3300
MA2J11100L MA2J11100L 10 11
V_S/S_ADJ V_S/S_IN
C8014 C8020 C8022 C8354 C8034
16V 50V 16V 50V
R8032 IC8054
0.1 0.01 0.47 0.01 1000p
2200[F]
C1AA00000395
GC/PC_Gsync separation
59 60
DG-BOARD TNPA2816AB (7/7)
!
LC8003
10U
BUFFER
R8101
100
PC/-VD
1
I1
PC_VD2
2
O1
3
I2
4
O2
C8046
R8105 16V
5
10k 0.1 I3
R8104
270
6
R8103 O3
C8044
2.7k
16V 2.2
7
R8106 GND
Q8015
15k
R8102 C8045
2SD1819A-TX 50V
3.3k
33p
CLP-OUT
PC/-HD
R8410
100
R3254 R3257
4700
1500
REG12V
L8004 10
R8042
C8037
18K
50V
100p
C8031
C8302
R_SIG 6.3V
0.01 4.7
C8303
G_SIG
C8032 6.3V 4.7
47
C8304
B_SIG
6.3V 4.7
R8320
100
R8371
R8040
R8038 100
4700
4700
C8039
50V 50V
1000P
R_SIG
1
2
3
G_SIG
4
5
6
7
B_SIG
61
C8048
16V
1
14
VCC
13 PC_HD2
I6
12
O6
11
I5
R8112
HP
33 SW_HP
10
O5
R8109
100
9
I4 R8114
NCLP 100
SW_CLP
8
O4
R8110
100
R8113
VP 33
SW_VP
R8111
C8055
100
R8115 R8116 R8117
50V
1.5k
1.5k 1.5k
100P[JC]
G_OUT4
VFC
LPF_R
LPF_G
LPF_B
HD_S
R8308
1K
TEST SW
10 HP
R8405
9
1K
B_OUT
14
8
IC8030 R8306
13
7
1K
G_OUT
MC14066BF 12
6
R8307
11 5
1K
R_OUT
10 4
R8301
9 3
10K
8 2
1
R8302
10K
DG30
TH-42PX20U-P
DG-BOARD (7 of 7) Schematic Diagram
62 63