Panasonic TC-20LB30 Service Manual page 51

A-BOARD TNPH0580 (5/5)
51
52
53
54
55
56
57
58
TC-20LB30 A-Board (5 of 5) Schematic Diagram
37 38
STBY3.3V
C1004
16V
47u
STBY3.3V
R1123
10k
R1124
22k
R1002
10k
Q1001
R1127 4.9
2SC584500L
10k
4.1
0.6
R1128
3.5
10k AA_SCL1_5
AA_SDA1_5
MAIN5V
C1061
50V
0.01u
R1125
22 4.3 5.0
AA_SDA5_5
1 8
R1126
AA_SCL5_5 22 4.3 5.0
2 7
0 0
3 6
0 0
4 5
IC1008
C1ZBZ0001893
TEMPERATURE
SENSOR
39 40
STBY3.3V
C1010
C1003 C1005 C1009
10V
4V 10V 10V
100u 1u 1u 1u
R1024 R1025
2.7k 2.7k
IC1003 3.3
3.3
C0EBE0000341
3.3
RESET/STB 3.3V
C1022 3.3
D1002
10V
MAZ80620ML
C1006 C1076 1u
10V 6.3V
1u 1u
R1003
47k
RESET
IIC-BUS
C1026
16V
0.1u
R1152 R1121 R1030
100 100
2.7k
R1005
47k R1135
100
AF_PC_SYS
AF_PC_TXD R1136 100
Q1003
AF_PC_RST
R1137 100
2SC584500L C1008
0
AF_PC_RXD
50V
100p
R1138
2.2 100
0
C1016
50V
C1011 18p
10V
3.2
1
4.7u
0.1
R1141 2
R1004
100
47k AB_LCDMUTE 3.2
3
0
R1017 4
Q1002 NC
PC_TXD
1k 3.2
2SC584500L 0 C1007 C1014 5
RESET NC
16V
16V 0
STOP MODE 6
0.022u STOP_MODE PC_RST
0.1u 3.3
2.2 7
TEST
0 0
8
R1010
YS
100
AB_SP_ON 0
9
Surrund ON
R1007 AB_GLP_RST 1.6
10 IC1001
10k NC
0
11 GLP_RST
R1009
MN102H57KLF
3.0
0 0 R1012 12
H SYNC
100
AB_GC3FM_RST 3.1
Q1004 13
GC_RST
2SC584500L 1.4 MCU
14
OSDXI
0 1.6
R1013 C1015 15
NC
16V 0.1u
0 4.8
R1014 16
SCL1
VIDEO_AGC
0 4.7
R1015 17
SDA1 YM
AA_SCL0 0 3.2
18 OSD(B)
SCL0
R1006 R1008
AA_SDA0 3.2
19
2.7k 2.7k
1.4
R1016 20
0
R1020 1.4
21
SUB5V 150
R1022
3.3k
C1013
50V
3900p
MAZ80430ML
OSDBM,OSDCLKM,OSDGM,OSDHM,OSDRM,OSDVM,OSDYMM,OSDYSM
MAIN5V
MAIN5V
5.0
C1012
R1027
50V
12k 2.1
Q1006
0.01u
2SC584500L
4.9
R1018 C1039
R1028
470 16V 2.4
1.9 Q1005
10k
0.1u
2SC584500L
C1025
3.5 4.8
10V
R1023 R1026
220 240 1u 2.8
Q1007
R1019 2SC584500L
10k
2.1
C1020 C1023 R1029
R1021
50V 50V
1k 1M
470p 560p
R1033
1k
CC
OSDCLK
OSDV
OSDB
OSDG
OSDR
41
FOR
FACTORY USE
IC1002
TVRN353
R1040
EEPROM
47k
SDA
VSS
5 4 Q1008
0
UNR521100L
SCL
E2 3.2
6 3
0
WC
E1
7 2 0
0
0
VCC
8 E0 1
0
R1038
100
R1042
390k
R1048
0
63 10k
0 AB_SS_NR_SW
62
3.2
61
D1007
0.4
60 MA2J72800L R1064
SBI
A_MUTE 100
3.2
59 R1056
BS_CN SRQ
2.7 100 AB_SUB_ON
NC 58
BS_ON
1.2 AB_AGC_ADJ
AGC_ADJ 57 R1057
3.2 100 AB_LEDR
56 R1053 R1058 C1032
LED(R)
0 7.15k 100 50V 100p
AB_LEDG
55
LED(G)
3.2 AB_KEY
54
KEY
1.7 R1065 AB_ECO_AI
53
ECO_AI
1k
3.2 R1066 AB_INV_ON
52
INV_ON
1k
0.8 R1067
51 R1051
A_TREBLE
10k 100
0
50
A_BASS R1059
1.9 100
49
A_VOL
0
48
AGC_CONT R1061
PC_FID_DET
3.0 100 AB_PANEL_ON
47
Vpp PANEL_ON
0
46
CLH
SBI
3.2
45
3.1
44
R1047
100
0
43
MAIN5V
R1074
0
C1031
R1043
16V
0
0.1u
SUB5V
R1045
R1077
18k
4.7k
D1003
C1029
R1151
6.3V
33k
47u R1145
0
Q1013
UNR221500L
0
1.8
0
C1055
50V
0.01u
R1079
0
R1080
OSDHM 0 OSDH
R1081
0
R1082
0
R1086
0
OSDYSM OSDYS
R1085
0
R1084
OSDYMM 0 OSDYM
R1083
0
TC-20LB30 A-Board (5 of 5) Schematic Diagram
42 43
K1KA08A00138
A12
5.0
R1099 R1103
R1097
100 100
4.7k
C1046
R1098
50V
4.7k
0.01u
R1113
0
R1114
0
MAIN5V STBY3.3V
C937
C930
10V 10V
1u
1u
R1104
100
R1105
0 MAIN5V
R1107 R1110
11k 0
C1048
R1147
10V
4.64k
1u
R1093 R1094
100 100
R1095
0
R1087
11k
C1040
R1144
10V
4.64k
1u
R1088
4.7k
Z009-0005
C1041 C1043
R1146 R1096
10V 16V
4.7k 0
10u
1u
OSDCLKM
OSDVM
OSDBM
OSDGM
OSDRM
44 45