Panasonic TH-42PA25U-P Service Manual page 300

DG-BOARD TNPA2816 (2/8)
1
2
3
D2255 R2261
MA3X152K0L
2200
C2251
R2254
25V
22K R2257
220/10V
18K
Q2251
2SB1218A-TX_M R2260
1K
VAO MUTE
Q2255
2SB1218A-TX_M
AC OFF MUTE
R2251
22K
R2259
270
Q2254
2SB1218A-TX_M
R2252
22K
Q2253
Q2258
2SD1819A-TX
Q2252 2SD1819A-TX
2SB1218A-TX_M C2252 VAO SOUND DEFEAT
R2258
0.01
47K
MAIN_DEF
POFF_DEF
MAIN_DEF
RESET
VAO_MUTE
IC003
JS001 PST9128NR STB3.3V
C001
C003
6.3V C011
6.3V
R007
4R7[KB]
100/10V 100/10V
3900
C002 VCC VO
Vo Vin
0.01
IC004
Nr GND ON/OFF NC SUB GND
PQ1L333M2SP
STB_3.3V
R026
AD_MODE
C005 C009
100
16V
0.01
0.1 SBOJPG R027
GC_VP
R028
C006 C007 C008
35V 16V 35V
47/16V 0.1 47/16V
RESET
GC_HFR
R017
OSD_YS R018
R010
FM_TRAP 1K
GC_HP
R001
Q001
22 1K
VIDEO_MUTE R024 OSD_CLK
2SD1819A-TX
2RF_SW
C004
HDMIWP
50V
R004
1/50V 10K SCLHDMI R012 0
R003
SDAHDMI R013 0
22K
R008 2700
R009 2700
10K
R023
AUDIO_MUTE25
DG40
1
2
OSD_YM
OSD_B
OSD_G
OSD_R
TEST_SW
DG41
1 Q029
FA1 2SD1819A-TX
2
3
SCL1
4
SDA1
5
SCL2
6
SDA2
7
8
REMOTE_BC
9
4
TH-42PA20U DG-Board(2of8)Schematic Diagram
10 11
IC005
C0JBAR000241
1
Y0
2
Y2
3
R121 Y
100K 4
Y3
3.3V
5
Y1
Q020 6
INH
7
B1ABCC000004 VEE
R120
2SD1819A-TX 8 VSS
100
R122 R069
10K 100
C022
C2253 R2265
100P
0.01 47K REMOTE
R123
5V
100K
STB3.3V
X001
C015 LN-M8-335
6.3V
6.8
C023
27P
R070
0
R071
LEDCTRL_SOS
1K
R158
R132 2200 1200
220 1 63
NC
[SBOJPG] 47K
100 2 62 R128
PANEL_SOS
/VSYNC
R073 AFC2
3 61 0
(CEC_OUT) AFC2
1K
R015 4 60 R074
NC HDMIINT
220
1K JPGINT
5 59 R081
/RST [JPGINT]
100
6 58
HFR(ATSCINT) NC
7 57
/TEST T_SENSOR R129
100 47K
8 56
YS IC001 ATSCONOFF
9 55
(XRSTPKS) (HP_DET)
R130
10 54
SYSCLK MN102HF75KBF NC
47K
11 53
(HFR) (TVON_OPT)
R022 100 12 52
MAIN MICON
/HSYNC POWDET_5V
13 51 R085 1K INT1JPG
FM_TRAP(DA_SWPKS) [INT1JPG]
0.1 14 50 R086 1K INT0JPG
C049
[INT0JPG]
OSDXI
C050 0.1 15 49 R131 R087 1K XRSTJPG
[XRSTJPG]
OSDXO
16 48
2RF_SW HP_DET(RELAY)
R025 1K 17 47 47K R077 10K
HDMIWP SBT1
18 46 R078 10K
SCLHDMI NC(SBIPKS)
19 45
SDAHDMI AC_SW(SBOPKS)
1K
20 44 R080
VCOI AUDIO_MUTE
R030 AUDIO_MUTE
21 PDO POW_ST 43
3300
C014 C026
1/50V
3900P
R138
50V
4700
R032 C033
R057
50V
6800
100 1/50V
Q004
C029
C032
16V 2SB1218A-TX_M
16V
R051 C019 R092
47/6.3V 47/6.3V
0.01
910
C034 10K
6.3V Q005
6.8
R072 2SB1218A-TX_M
R055
47K
680
1%
1% C024
R149
0.01
4700
C025
6.3V
R152
22K
47/16V
R137
4700
Q024
Q023
2SD1819A-TX
2SD1819A-TX
12 13
SWITCH
16
VDD
15
X2
C047
14
X1 0.01
13
X
MAIN_5V
12
X0
11
X3
10
A
9
B
KEY_SCAN1
STB3.3V
C3802
C037 C038
Q3804 16V
100/6.3V 1 8 1
0.1
VCC A0
6.3V 2SB1218A-TX_M
7 2
A1
WP R3809
IC002 330
R093 100 SCL2
SCL1 6 3
A2
SCL
SDA2
R094 100
SDA1 5 4
VSS
SDA R3806
R3810
1K 10K LOADER_MODE
EEPROM
Q3801
BR24C64F-E2 B1ADCC000004
VPP12V
24LC64T-I/SN 2SB1218A-TX_M
R3805
22K
STB3.3V
R164 Q030
R3803
R3802
15K
2SD1819A-TX 27K
3300
R165 Q3803
2SD1819A-TX
6800
Q3802
R166
6800
2SD1819A-TX C3801
R3804
16V
220K
0.1
Q008 R100
12K
2SD1819A-TX
R099
10K
Q006
R103
2SD1819A-TX R097
C039 220
240
1[ZF]
MAIN_Y_1
10V
R095
1K
C041
C043
560P[JC] 470P[JC]
MAIN/SUB_Y_CC
Q009 R102
12K
2SD1819A-TX
R101
10K
Q007
2SD1819A-TX R098
C040 240
R104
10V
SUB_Y_1
220
1[ZF]
R096
1K
C042 C044
560P[JC] 470P[JC]
R140
0
D002
MAZ30910ML
14 15
TO
K-BOARD
(K12)
DG12
Q027
R148
2SD1819A-TX
220
R163
4700
R3815
0
L3801
10U
R3811
10K
C3803 49 32
IC3801
P37/_SRDY3 P20
6.3V 50 31
100 P36/SCLK3 P21
C3806 0.01 51 30 TVRN013
P35/TXD3 P22
C3807 0.01 52 29
P34/RXD3 P23
CONVERT MICON
53 28
P33/SCL P24
R3812 22
54 27
P32/SDA P25 X3801
22
R3813 55 26
NX1255GA9.216MHZ
P31/DA2 P26
C3813
R3814 100 56 25
P30/DA1 P27
33P[JC]
57 24
VCC VSS
58 21.P40/INT40/XCOUT 23 R3837
VREF XOUT
C3804 C3805 20.P41/INT00/XCIN
59 19._RESET 22 1M
16V 16V AVSS XIN
18.CNVSS/VPP
0.1 47/16V 60 17.P42/INT1 21
P67/AN7
61 20
P66/AN6 C3814
62 19 33P[JC]
P65/AN5
63 18
P64/AN4
64 17
P63/AN3 C3811
2.2 R3836
1K
C3812
16V
0.1
C3815
0.056
R3826
IC3803
47K
RESET
C3808 C3809
IC3802
16V 0.01
M51957BFP-600C
47/16V
C0JBAR000241
1 16
Y0 VDD
R3834 R3835
2 15
Y2 X2
R3829
3 14 10K 10K
Y X1 10K
4 13
Y3 X
5 12
Y1 X0
11 C3810 D3801
6
INH X3
1000P MA3X152K0L
10
7
VEE A
9
8 VSS
B
SWITCH
D3802 C3816
MA3X152K0L
1000P
TXDRXD
TH-42PA20U DG-Board(2of8)Schematic Diagram
16
11
12
13
14
15
16
17
18
HDMI
19
20
21
17 18