LG 50PS2000-ZB (CHASSIS:PD92A) Service Manual ▷ View online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPDIF_OUT
001:V12
Fiber Optic
JST1223-001
JK1000
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
0 . 1 u F
50V
C1005
+5V_GENERAL+5V_GENERAL
3 . 3
R1017
MS_LRCK
0 0 1 : Z 1 3
0
R1006
+3.3V_DVDD
0 . 0 1 u F
C1012
0 . 0 1 u F
C1025
3 . 3
R1019
DBF-0822DM
EAP53148301
L1000
2S
1S
1F
2F
33
R1005
SDA_SUB/AMP
0 0 4 : H 1 6 ; 0 0 1 : Y 1 5
2200pF
C1015
22K
R1004
0 . 0 1 u F
C1036
0 . 0 1 u F
C1024
AC_DET
0 1 1 : I 1 7 ; 0 0 1 : V 1 0
+3.3V_AU_AVDD
0.047uF
C1014
1000pF
OPT
C1002
200
1%
R1010
0 . 0 3 3 u F
50V
C1020
470
R1013
18K
1%
R1012
0 . 0 3 3 u F
50V
C1028
0 . 1 u F
C1016
0 . 0 1 u F
C1035
1uF
C1018
AVSS
AVSS
4700pF
C1011
MS_SCK
0 0 1 : Z 1 3
+3.3V_DVDD
470
R1014
0 . 1 u F
C1003
33
R1008
100
R1002
OPT
22K
R1015
0 . 0 3 3 u F
50V
50V
C1019
0 . 0 3 3 u F
50V
C1027
AMP_RST
001:O19
3 . 3
R1016
DBF-0822DM
EAP53148301
L1001
2S
1S
1F
2F
0 . 0 1 u F
C1022
+3.3V_DVDD
MUTE
0 0 1 : F 9
SCL_SUB/AMP
0 0 4 : H 1 6 ; 0 0 1 : Y 1 4
AUDIO_MASTER_CLK
0 0 1 : Z 1 3
0 . 0 4 7 u F
C1009
0 . 0 1 u F
C1004
2K
OPT
R1007
MS_LRCH
0 0 1 : Z 1 2
+3.3V_DVDD
P_17V
10uF 16V
C1010
+3.3V_AU_AVDD
0 . 0 1 u F
C1037
33
R1009
0 . 0 1 u F
C1021
1K
R1003
P_17V
10uF 16V
C1001
0 . 0 1 u F
C1038
33pF
OPT
C1008
AVSS
3 . 3
R1018
1uF
C1017
0
OPT
R1011
33pF
OPT
C1007
1000pF
50V
50V
OPT
C1000
4700pF
C1013
+3.3V_CI
0
R1001
OPT
AVSS
0 . 3 3 u F
C1029
0 . 3 3 u F
C1030
0 . 3 3 u F
C1033
0 . 3 3 u F
C1034
0 . 3 3 u F
C1032
0 . 3 3 u F
C1031
47uF
C1043
47uF
C1026
47uF
C1045
47uF
C1046
47uF
C1023
47uF
C1044
120-ohm
L1003
120-ohm
L1002
TAS5709PHPR
IC1000
1
OUT_A
2
PVDD_A_1
3
PVDD_A_2
4
BST_A
5
GVDD_OUT_1
6
SSTIMER
7
OC_ADJ
8
NC
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
TESTOUT
15
MCLK
16
OSC_RES
17
DVSS_1
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS_2
29
GND
30
AGND
31
VREG
32
GVDD_OUT_2
33
BST_D
34
PVDD_D_1
35
PVDD_D_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
PVDD_C_1
41
PVDD_C_2
42
BST_C
43
BST_B
44
PVDD_B_1
45
PVDD_B_2
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
10uF
16V
16V
C1006
SMW250-04Q
P1000
1
2
3
4
5
4.7K
R1000
OPT
100pF
50V
50V
C1047
AMP
1 0 1 1
AMP
SPDIF OPTIC JACK
PULL DOWN
T h i s p a r t s a r e L o c a t e d
o n A V S S a r e a .
Separate DGND AND AVSS
SPK_L+
2 0 0 9 . 0 4 . 1 5
EAX57566204
SPK_R-
SPK_L-
SPK_R+
AMP
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
0 . 1 u F
50V
50V
C1166
0 . 0 1 u F
50V
C1138
0 . 1 u F
50V
C1149
0 . 1 u F
50V
50V
C1129
1/4W
0
5%
R1133
0 . 1 u F
50V
50V
C1147
0 . 1 u F
50V
50V
C1139
0 . 1 u F
50V
50V
C1170
47uF
16V
C1165
VAVS_ON
001:V15
0 . 1 u F
50V
50V
C1168
+5V_ST
0 . 1 u F
C1107
+3.3V_AVDD_LPLL
+3.3V_AVDD_MPLL
0 . 0 1 u F
50V
C1196
0 . 1 u F
50V
50V
C1127
0 . 1 u F
50V
50V
C1174
+1.25V_MULTI
0 . 1 u F
50V
50V
C1191
AZ1117D-1.8TRE1
IC1104
1
ADJ/GND
2
OUTPUT
3
INPUT
0 . 0 1 u F
50V
C1169
0 . 0 1 u F
50V
C1123
+5V_GENERAL
0 . 0 1 u F
50V
C1144
0 . 1 u F
50V
50V
C1195
1/4W
0
5%
R1134
0 . 1 u F
50V
50V
C1145
0 . 1 u F
50V
50V
C1153
0 . 1 u F
50V
50V
C1186
+5V_CI
+1.25V_VDDC
AZ1085S-ADJTR/E1
IC1107
1
ADJ/GND
2
OUTPUT
3
INPUT
100uF
16V
C1130
100
R1157
+3.3V_AVDD_ADC
22K
R1159
OPT
4.7K
R1148
+3.3V_AVDD_OTG
+3.3V_VDDP_ST
0 . 1 u F
50V
50V
C1133
0 . 1 u F
50V
50V
C1189
+3.3V_CI
+5V_ST
0 . 1 u F
C1109
+3.3V_AVDD_AU
10K
R1122
+1.25V_MULTI
47uF
16V
C1167
0 . 1 u F
50V
50V
C1141
15pF
50V
50V
C1103
15pF
50V
C1112
0 . 1 u F
50V
50V
C1183
0 . 1 u F
50V
50V
C1181
+5V_SYS
2SC3875S(ALY)
Q1101
E
B
C
5V_MNT
001:V11
0 . 1 u F
50V
50V
C1175
+5V_ST
100
R1143
+1.8V_TU
39
1%
R1139
0 . 1 u F
50V
50V
C1172
100uF
25V
C1106
0 . 1 u F
50V
50V
C1197
0 . 1 u F
50V
50V
C1151
100uF
16V
C1182
0 . 1 u F
50V
50V
C1136
0 . 1 u F
50V
50V
C1124
0 . 1 u F
50V
50V
C1131
0 . 1 u F
50V
50V
C1190
22K
R1125
0 . 1 u F
50V
50V
C1193
P_17V
0 . 0 1 u F
50V
C1178
AC_DET
0 1 0 : C 1 2 ; 0 0 1 : V 1 0
RL_ON
001:V15
+3.3V_TU
0 . 1 u F
50V
50V
C1194
+1.8V_DDR2_MAIN
0 . 0 1 u F
50V
C1171
AZ1117D-3.3TRE1
IC1103
1
ADJ/GND
2
OUTPUT
3
INPUT
0 . 0 1 u F
50V
C1140
100uF
16V
16V
C1108
0 . 1 u F
50V
50V
C1179
+3.3V_AVDD
+3.3V_AVDD_MEMPLL
0 . 1 u F
50V
50V
C1134
+3.3V_AVDD
+3.3V_AVDD_VIF
+5V_TU
0 . 4 7 u F
C1102
0 . 1 u F
50V
50V
C1105
+1.25V_AVDD_DVI
100
R1156
+5V_ST
0 . 0 1 u F
50V
50V
C1173
0 . 0 1 u F
50V
C1132
0 . 0 1 u F
50V
C1135
+3.3V_VDDP_ST
+3.3V_VDDP
P_12V
0 . 1 u F
50V
50V
C1125
5V_ON
001:V12
AZ1085S-ADJTR/E1
IC1102
1
ADJ/GND
2
OUTPUT
3
INPUT
+3.3V_AVDD_DVI
+1.8V_EXPANDER
+3.3V_EXPANDER
100uF
16V
C1126
47uF
16V
C1148
47uF
16V
16V
C1150
POWER_ON/OFF1
0 . 1 u F
50V
C1155
+5V_SYS
0 . 1 u F
50V
50V
C1142
100uF
16V
16V
C1156
+3.3V_AVDD
+3.3V_AVDD
+3.3V_AVDD
1K
1%
R1130
22
1%
R1128
+3.3V_VDDP_ST
AZ1085S-3.3TR/E1
IC1106
1
ADJ/GND
2
OUTPUT
3
INPUT
+5V_SYS
1/10W
360
1%
R1120
1/10W
4.3K
1%
R1121
SMW200-24C
P1100
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
0 . 1 u F
C1201
100uF
16V
16V
C1200
+5V_MULTI
+5V_MULTI
100
R1160
RSR025P03
Q1102
S
D
G
0 . 1 u F
50V
C1111
0 . 1 u F
50V
50V
C1203
0 . 1 u F
50V
50V
C1202
KEY_ON
0 0 4 : T 8
15pF
50V
C1206
47uF
16V
C1210
+5V_TU
0 . 1 u F
50V
50V
C1209
0 . 1 u F
50V
50V
C1207
10uF
16V
16V
C1159
OPT
1/10W
1.8K
5%
R1126
120-ohm
L1103
CB4532UK121E
470uF
16V
16V
C1188
100uF
16V
16V
C1122
220uF
16V
16V
C1110
CB3216PA501E
L1119
CB3216PA501E
L1120
CB3216PA501E
L1117
CB3216PA501E
L1114
CB3216PA501E
L1100
CB3216PA501E
L1102
CB3216PA501E
L1101
CB3216PA501E
L1125
CB3216PA501E
L1109
CB3216PA501E
L1106
CB3216PA501E
L1121
CB3216PA501E
L1126
CB3216PA501E
L1108
CB3216PA501E
L1115
CB3216PA501E
L1111
CB3216PA501E
L1113
CB3216PA501E
L1116
CB3216PA501E
L1112
0 . 1 u F
50V
50V
C1212
0 . 1 u F
50V
50V
C1128
15pF
50V
50V
C1104
100uF
16V
C1213
AP2121N-3.3TRE1
IC1105
1
GND
2
VOUT
3
VIN
82
1%
R1140
10uF
16V
C1137
Power
1 1 1 1
R2
V 0 = 1 . 2 5 ( 1 + R 2 / R 1 )
+3.3V_AVDD
Stand-by&Multi +3.3V_+1.25V_MST_Core
V 0 = 1 . 2 5 ( 1 + R 2 / R 1 )
TUNER_CI +3.3V & +1.8V
+1.8V_DDR
POWER
R1
R2
DDR2 1.8V POWER change to ADJ TYPE_080402
R1
EXPANDER POWER 3.3V & 1.8V
Change LDO because of PM REV.
2 0 0 8 . 0 9 . 0 4
2 0 0 8 . 0 7 . 1 0
Change LDO because of PM REV.
M U S T B E c h e c k e d c u r r e n t s p e c .
P M C o n t r o l
EAX57566204
PM for GPIO4
⁄
!
B
5V MULTI
KEY ON(NEW POWER B/D
FOR 0.2W
2 0 0 9 . 0 4 . 1 5
OWER
PDP TV Repair Process Index
- Trouble shooting by worst symptom
A. Picture Problem
8
No sound/ Sound distortion
C. Sound Problem
8
No.
Symptom (L)
Symptom (M)
Page
Remark
1
No Picture/Sound OK
1
2
No Picture/No sound
2
3
Mal-discharge/Noise/dark picture
3
4
Picture broken/Freezing
4
5
Vertical bar/ Horizontal Bar
5
6
B. Power Problem
No Power (Not turn on)
6
7
Turn off (Instant, under watching)
7
9
E. General function Problem
Remote control & Local switch checking
9
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
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