Panasonic TH-42PX20U-P Service Manual page 249

14.32. DG-Board (1 of 7) Schematic Diagram
DG-BOARD TNPA2816AB (1/7)
!
A
MAIN_DEF
B
C
C003
6.3V
100/10V
C001
6.3V
100/10V C002
50V
0.01
IC004
PQ1L333M2SP
D
C004
50V
1/50V
E
F
TH-42PX20U-P
DG-BOARD (1 of 7) Schematic Diagram
1
D2255
R2261
MA3X152K0L
2200
C2251
R2254
25V R2257
22K
220/10V 18K
VAO MUTE
R2260
1K
Q2251
2SB1218A-TX_M
AC OFF MUTE
Q2255
2SB1218A-TX_M
R2259
R2251
270
22K
Q2254
2SB1218A-TX_M
Q2252
2SB1218A-TX_M
R2252
Q2253
22K
2SD1819A-TX
C2252 R2258
47K
50V
0.01
POFF_DEF
MAIN_DEF
VAO_MUTE
REG3.3V
TP013 TP014
JS001
RESET
Vo Vin
R007
Nr GND ON/OFF
C009
3900
50V
0.01
C005
VCC VO
16V
0.1
C006 C007 C008
NC SUB GND
35V 16V
35V
0.1
47/16V 47/16V
STB_3.3V
R026
SBOJPG
R027
GC_VP
R028
RESET
GC_HFR
R017
OSD_YS
R018
GC_HP
R022
FM_TRAP
Q001 R010
R001 2SD1819A-TX
22
R004 VIDEO_MUTE
R024
10K
2RF_SW
R025
HDMIWP
R003
SCLHDMI
R012
22K
SDAHDMI
R013
R008
R009
R023
DG40
AUDIO_MUTE25
R032
1
100
2
OSD_YM
OSD_B
OSD_G
OSD_R
Q029
TEST_SW
2SD1819A-TX
DG41
1
FA1
2
3
4 SCL1
SDA1
5
SCL2
6
SDA2
7
REMOTE_BC
8
9
2
MAIN9V
VAO SOUND DEFEAT
C2253
R2265
50V
Q2258 47K
0.01
2SD1819A-TX
R048
2700
R054
2700
STB3.3V
X001
LN-M8-335
C018 C016
50V
50V
100P 100P
R031
47K
100
220
1
[SBOJPG]
100
2
/VSYNC
3 (CEC_OUT)
R015
4
NC
220
5
/RST
100
6 HFR(ATSCINT)
7 /TEST
100 8
YS
9 IC001
(XRSTPKS)
10 SYSCLK
TVRN062
11 (HFR)
100 12 /HSYNC
1K MAIN MICON
13
FM_TRAP(DA_SWPKS)
C049 50V 0.1 14
OSDXI
1K C050 50V 0.1
15
OSDXO
16 2RF_SW
1K
17
HDMIWP
0 18
SCLHDMI
0 19 SDAHDMI
2700 C013 20 VCOI
C012
50V 50V PDO
2700 21
100P 100P
10K R030
R016
3300
150
C014
50V
3900P
1%
R055
680
R149
4700
1%
R152
22K
R053
R047
2700
4700
3
STB3.3V
3.3V 5V
R121
R069
100K
100
Q020
2SD1819A-TX
R120 R122
100
10K
REMOTE
5V
C022
R123
50V 100K
100P
R060
R059
1200
2700
C030 C031
C028
50V 50V
50V
100P
22P[JC] 22P[JC]
R070
0
R071
1K
R158
1200
LEDCTRL_SOS
R132 2200
63
NC
47K
R128
PANEL_SOS 62
R073 0
AFC2 61
HDMIINT
R074 1K
60
HDMIINT
59 R081 1K
[JPGINT]
NC 58
T_SENSOR 57
56
ATSCONOFF
47K
R129
55
(HP_DET)
NC 54
R130 47K
(TVON_OPT) 53
POWDET_5V 52
INT1JPG
R085 1K
51
[INT1JPG]
R086 INT0JPG
50 1K
[INT0JPG]
R087 XRSTJPG
1K
[XRSTJPG] 49
47K
HP_DET(RELAY) 48 R131
R077 10K
47
SBT1
R078 10K
46
NC(SBIPKS)
AC_SW(SBOPKS) 45
R080 1K AUDIO_MUTE
AUDIO_MUTE 44
POW_ST
43
C034
Q004
6.3V
2SB1218A-TX_M
6.8
R092
10K
Q005
2SB1218A-TX_M
C035
R072
16V
47K
0.1
C024
50V
C025 C027
0.01
C032 16V
C029 6.3V
16V 1000P[KB]
16V 47/16V
47/6.3V
47/6.3V
R138
4700
R137
4700
2SD1819A-TX
Q023
2SD1819A-TX
4
SWITCH
IC005
C0JBAR000241
1 16
Y0 VDD
C047
2 15
Y2 X2
50V
0.01
3 14
Y X1
4 Y3 13
X
SWITCH
5 12
Y1 X0
6 11
INH X3
7 10
VEE A
8 VSS 9
B
KEY_SCAN1
STB3.3V
C037 C038
6.3V 50V
100/6.3V 1
IC002
BR24C64F-E2
8 1
A0
VCC
7 2
A1
WP
SCL1 100
R093
6 A2 3
SCL
AFC1
SDA1 100
R094 5 4
VSS
SDA
EEPROM
AFC2
JPGINT
R380
560
STB3.3V
R164
Q030
15K
2SD1819A-TX
R165
6800
R166
6800 2S
Q008
2SD1819A-TX
R100
R099 12K
10K
R
2
Q006
C039
MAIN_Y_1
C041
10V
2SD1819A-TX
50V
1[ZF]
R095 560P[J
1K
Q009
2SD1819A-TX
R102
12K
R101
10K
2
SUB_Y_1 C040
C042
Q007
10V
50V
1[ZF]
R096 2SD1819A-TX
560P[J
1K
Q024
R140
0
D002
MAZ30910ML
5
94