LG 26LD330 Service Manual page 26

EAX61532102
LP91H
+3.5V_MST
26_32INCH
2SC3875S
Q1005
26_32INCH
R1000
26_32INCH
4.7K
R1001
4.7K
READY
R1004
0
26_32INCH
3
R1003
RL_ON 26_32INCH
2
2SC3875S
1
10K
Q1000
Power on
1
READY
24V
R1006 3
100K
GND
5
P_24V_SMALL_15V GND
7
3.5V
9
P_3.5V
3.5V
11
GND
13
GND
15
12V
17
P_12V_SMALL_15V
12V
19
12V
21
LED Block GND/P-Dim2
23
+3.5V_MULTI
+3.5V_MST
R1002 R1005
10K 1.2K
LD1002
SAM2333
<OS MODULE PIN MAP>
PIN No LGD CMO(09) AUO SHARP
18 INV_ON A-DIM INV_ON INV_ON
V4:VBR-A
20 Err_out Err_out NC
V5:VBR-A
22 PWM_DIM PWM_DIM NC PWM_DIM
24 Err_out INV_ON PWM_DIM GND
*ST 3.5V->3.3V
+3.5V_MST
+3.3V_MST
READY C1053
C1065 C1052
ZD1000
0.01uF
2.2uF 10uF
3.6V
50V 10V 16V
**DC-DC CONVERTER
*12V -> 5V_MULTI
R1074
180K
26_32INCH
R1007
0
19_22INCH
L1000 D1000
P_12V_SMALL_15V
500 50V C1001
10uF
25V
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.
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
CIC21J501NE
L1003
P_24V_SMALL_15V
500
19_22INCH
L1004
R1010 P_3.5V
120-ohm
0
26_32INCH
P1000
FW20020-24S
19_22INCH
P1001
SMAW200-12
24V
15V 2
P_24V_SMALL_15V
1
24V
15V 4
2 P_24V_SMALL_15V
GND
GND 6
3
GND
GND 8
4
3.5V
3.5V 10
5 P_3.5V
3.5V
3.5V 12
6
GND +3.5V_MULTI
GND 14
7
19_22INCH
GND
OLP 16 R1028 0
R1046
8 OLP
3.3K
EXCEPT_BIGCMO
INV ON
INVERTER_ON 18 R1029 100
9
2SC3052
C
A-Dim Q1002
PWM_Dim 20 OPT
10
R1037 B R1047
6.8K
P-Dim 10K
A_Dim 22
11
BIG_CMO E
26_32INCH
Error out R1071 R1030
NC 24
12
0 100
R1015
BIG_CMO
0
R1031 0
19_22INCH
R1080
R1032 0
C1044
2.2uF
BIG_LGD
R1033 0 10V
BIG_AUO
R1034 0
+3.3V_MULTI_MST
READY
R1072 R1084
0 0
READY
R1040
BIG_LGD/SHARP FHD 4.7K
R1035
0
READY
R1082
0
BIG_NON_AUO
R1021
IPS SMALL
0
BIG_AUO/IPS
R1017 R1023 E-DIM
NON_OPC
INV_ON INV_ON
0 OPT 0 OPT R1038 NON_OPC
1K
C1008 C1012 R1060
R1083 0.1uF 1uF 6.2K
0 16V 25V
Err_out PWM_DIM
OPC_OUT
HD_OPC
NC A-DIM R1039 HD_OPC
R1075
1K
6.2K
PWM_DIM NC
IC1005
EP[GND]
MP20045DQ-LF-Z
R1061
4.7K
VIN_1 EN
1 8
C1067
2.2uF
READY VIN_2 PG
10V
L1011 2 7
120-ohm
VOUT_1 GND
3 6
1% READY
R1041 C1066 VOUT_2 FB
12K 4 5
100pF
50V
R1062
100K
1%
R1042
R8044
10K
470K
V0 = 0.8*(1+(R1/R2))
+3.5V_MULTI
26_32INCH
19_22INCH
R1013 R1036
10
10K
19_22INCH
IC1003 26_32INCH
C1064
R1008 R1016
R1
MP2212DN 0.1uF
75K 2K
50V
FB 1 8 EN/SYNC
R1009 MAX 3A
R2
15K
L1001
GND 2 7 SW_2
C1071
3.6uH C1006 C1034 C1072
10uF 10uF 0.1uF
100uF
16V 16V 16V
IN 3 6 SW_1 16V
C1002
C1003
10uF
0.1uF
25V 50V R1022
BS 4 5 VCC
+3.5V_MULTI
10
C1004 C1007
1uF 0.1uF
C1050
25V 50V
0.1uF
50V
R1014
0
**5V_MULTI->3.3V->1.2V
+16V_NTP
C1043 C1046 C1058
68uF 0.01uF 0.1uF
35V 50V 50V
+3.5V_MST
C1045 C1057 C1011
10uF 0.01uF 0.01uF
16V 50V 50V
+3.5V_MULTI
C1059
10uF
16V
C1054
DISP_EN/VAVS_ON 0.1uF
50V
+3.5V_MST
I-DIM
10K
PANEL_STATUS
**Switch 12V:P12V **Switch 3.5V:3.5.V_MULTI
Close to Q1003
R1048
PANEL_ON
10K
R1020
10K
R1068
POWER_SW
10K
**DC-DC CONVERTER
**12V->TUNER 5V
+5V_MULTI
19_22INCH
D1001
50V
26_32INCH
L1008
R1012
P_12V_SMALL_15V
0
500
IC1001
BD9130EFJ-E2
ADJ EN R1044
1 8
10K
VCC PVCC
2 7
L1002
ITH SW 2.2uH
3 6
C1017
R1045
10uF READY R2
R1043 GND PGND R1078 2K
16V C1014 C1018
C1013
12K 4 5 3.3
0.1uF 10uF
10uF
16V
16V
READY 16V
MAX 2A
C1060 C1055 R1053
R1
560pF 2200pF 3.3K
50V 50V
V0 = 0.8*(1+(R2/R1))
C1016
10uF
10V
READY
L1010
120-ohm
IC1007
MP20045DQ-LF-Z
VIN_1
1 8
C1070
2.2uF
VIN_2
10V
2 7
VOUT_1
3 6
C1068
1%
READY
2.2uF
R1063 VOUT_2
C1069
10V
12K 4 5
100pF
50V
1%
R1064
R8043
10K
470K
+5V_MULTI P_12V_SMALL_15V
19_22INCH 26_32INCH
L1005 L1006
120-ohm
120-ohm
Q1003
C1056
READY R1049
1uF SI4925BDY
C1027 33K
25V
EBK32753101
68uF
35V
26_32INCH
R1065
19_22INCH
S1 D1_2
33K
R1065-*1 1 8
C1005
10K
C
0.1uF
G1 D1_1
50V
B
2 7
Q1001
RT1C3904-T112
E
S2 D2_2
3 6
P_3.5V
G2 D2_1
4 5
C1019
10uF
16V
C1048
R1070
1uF
22K
25V
R1069
1.6K
C
RT1C3904-T112
Q1004
B
E
OUT:6.8V
READY
V0 = 0.8*(1+(R1/R2))
26_32INCH
R1059
10K
+3.5V_MULTI
IC1006
R1 R1057
MP2212DN
43K 19_22INCH
R1056
10
FB 1 8 EN/SYNC
R1058 MAX 3A
19_22INCH
26_32INCH
5.6K
R1018 C1024
R2
2K 0.1uF
GND 2 7 SW_2 50V
L1009
IN 3 6 SW_1
C1030 C1031 C1032 3.6uH
10uF 10uF 0.1uF
25V 25V 50V R1024
BS 4 5 VCC
C1035 C1029 10
1uF 0.1uF
25V 50V
C1033
0.47uF
50V
R1011
0
OUT:1.27V
+1.2V_VDDC_MST
READY
C1036
1uF
25V
IC1002
V0 = 1.25*(1+(R2/R1))
AP1117EG-13
OUT:1.85V
L1013
IN 2 OUT
3
MAX 1A
C1015 C1022 C1023 READY
120-ohm
1 C1037
0.1uF R1054 10uF 0.1uF
R1
1uF
50V ADJ/GND 120 6.3V 50V READY
25V
R1076
0
R1055
56
R2
IC1008
AP1117EG-13
OUT:1.85V
IN 2 OUT
3
MAX 1A
C1051 C1073
1
R1077
R1 10uF 0.1uF
ADJ/GND 120
6.3V 50V
+3.5V_MULTI
EP[GND]
READY R1079
R1066 56
R2
4.7K
EN R1081
POWER_SW
READY
10K
R1073
PG 47K
GND
FB
closed IC1007
READY
+3.3V_MULTI_MST
C1028 READY C1062 C1063
R1067
100uF ZD1002 10uF 0.1uF
100K 16V 3.6V 6.3V 50V
L1007
+5V_+12V_LCD
120-ohm C1009 C1010
R1050 R1051 R1052
100uF 0.01uF
2.2K 2.2K 2.2K
16V 50V
READY
+3.5V_MULTI
C1021 C1061 READY
0.01uF 100uF ZD1001
50V 16V 3.6V
READY
C1026 C1000 C1020 C1025
C1038
10uF 10uF 0.1uF
100uF
1uF C1040
16V 16V 16V
16V 25V 0.1uF
50V
R1026
330
R1025
110
C1047 C1042
0.1uF 100uF
16V
16V
C1039
0.1uF
50V
R1027
+3.5V_MULTI
R1019 330
110
READY READY
C1049 C1041
0.1uF 100uF
16V 16V
2009/12/23
LD330/LD420
9
POWER
LGE Internal Use Only
+1.8V_DDR
DDR2, Vref
+1.8V
NTP,AUDIO DSP
+1.8V
READY NTP,AUDIO DSP
C1074
1uF
25V
+5V_TUNER
+5V_USB
9