LG 37LG30RA / 37LG32R (CHASSIS:LP81A) Service Manual ▷ View online
C
2008
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.
MADR[4]
0 . 1 u F
C903
MADR[1]
MADR[11]
MADR[9]
SBA0
MADR[2]
150
READY
R903
LDQM
CKE
MADR[2]
MADR[3]
MDATA[0-15]
MADR[9]
MCLK
MADR[7]
MADR[5]
1000pF
C907
MADR[6]
0 . 1 u F
C904
+2.5V_VDDM_MST
0 . 1 u F
C906
0 . 1 u F
C909
WEZ
+2.5V_VDDM_MST
UDQM
0 . 1 u F
C905
MADR[0]
CASZ
DQS1
1K
R906
MADR[3]
MADR[0-11]
MADR[4]
MADR[8]
150
R905
MADR[0]
MADR[1]
1K
R909
MCLKZ
0 . 1 u F
C901
SBA1
MADR[8]
MADR[6]
DQS0
RASZ
0 . 1 u F
C908
MADR[11]
MADR[10]
MADR[7]
0 . 1 u F
C902
MADR[5]
MADR[10]
0 . 1 u F
C900
1/16W
56
AR903
1/16W
56
AR902
1/16W
56
AR901
1/16W
56
AR900
HYB25DC256163CE-4
IC900
26
BA0
27
BA1
28
A10/AP
29
A0
30
A1
31
A2
32
A3
33
VDD_3
34
VSS_1
35
A4
36
A5
37
A6
38
A7
39
A8
40
A9
41
A11
42
A12/NC_5
43
NC_6
44
CKE
45
CK
46
CK
47
UDM
48
VSS_2
49
VREF
50
NC_7
17
A13/NC_2
3
VDDQ_1
6
VSSQ_1
16
LDQS
15
VDDQ_3
14
NC_1
13
DQ7
12
VSSQ_2
11
DQ6
10
DQ5
9
VDDQ_2
8
DQ4
7
DQ3
4
DQ1
5
DQ2
25
NC_4
24
CS
23
RAS
2
DQ0
22
CAS
21
WE
1
VDD_1
20
LDM
19
NC_3
18
VDD_2
51
UDQS
52
VSSQ_3
53
NC_8
54
DQ8
55
VDDQ_4
56
DQ9
57
DQ10
58
VSSQ_4
59
DQ11
60
DQ12
61
VDDQ_5
62
DQ13
63
DQ14
64
VSSQ_5
65
DQ15
66
VSS_3
MDATA[12]
MADR[4]
MADR[4]
MDATA[11]
MADR[0-11]
MADR[9]
MADR[8]
MADR[11]
MADR[11]
MADR[2]
MDATA[0-15]
MDATA[0-15]
MDATA[1]
MDATA[2]
MDATA[14]
MDATA[0]
MADR[5]
MADR[0]
MADR[6]
MADR[0]
MADR[8]
MADR[10]
MADR[7]
MADR[7]
MADR[10]
MADR[9]
MADR[3]
MDATA[15]
MDATA[5]
MDATA[7]
MDATA[10]
MADR[1]
MADR[6]
MDATA[9]
MDATA[6]
MADR[5]
MADR[1]
MADR[2]
MADR[3]
MDATA[3]
MDATA[4]
MDATA[8]
MDATA[13]
DDR
**MULTI ITEM
SUB - HYNIX : EAN31729202
MAIN - QIMONDA : EAN41788501
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.
SCL_Part
0.1uF
C1011
51
AR1001
75
R1000
0.1uF
C1006
+1.8V_AVD
0.1uF
C1009
1M
R1005
+3.3V
PIP_V
0.1uF
C1000
51
AR1000
+1.8V
+1.8V_AVD
+1.8V_AVD
+1.8V_AVD
0.01uF
C1012
DEC_656[0-7]
DEC_656_CLK
TW9910DANA2-GR
IC1000
1
VDDE_1
2
SCLK
3
SDAT
4
PDN
5
RSTB
6
TMODE
7
NC_1
8
AVD_1
9
YMUX3
10
YMUX2
11
YGND
12
YMUX1
13
YMUX0
14
AVS_1
15
CIN0
16
AVD_2
17
AVS_2
18
NC_2
19
VSS_1
20
VS
21
HS
22
MPOUT
23
CLKX2
24
VSSE_1
25
VDDE_2
26
VD[15]
27
VD[14]
28
VD[13]
29
VD[12]
30
VD[11]
31
NC_3
32
VDD
33
VD[10]
34
VD[9]
35
VD[8]
36
VD[7]
37
VD[6]
38
VD[5]
39
VD[4]
40
VD[3]
41
VD[2]
42
VSS_2
43
NC_4
44
VD[1]
45
VD[0]/SIAD0
46
VSSE_2
47
XTI
48
XTO
+3.3V
47uF16V
C1010
SDA_Part
0.01uF
C1001
27MHz
X1000
0.1uF
C1008
100
R1003
100
R1002
0.1uF
C1004
0.1uF
C1002
0.1uF
C1003
SW_RESET
+3.3V
4.7K
R1001
READY
100
R1004
4.7K
R1006
51
R1009
10pF
C1013
READY
120OHM
UBW2012-121F
L1000
0
R1007
20pF
C1014
READY
0.1uF
C1015
22pF
C1005
22pF
C1007
DEC_656[3]
DEC_656[4]
DEC_656[5]
DEC_656[2]
DEC_656[7]
DEC_656[1]
DEC_656[6]
DEC_656[0-7]
DEC_656[0]
TW9910
MAX 1A
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.
0.1uF
C1135
22uH
L1101
AZ1117H-ADJTRE1(EH11A)
IC1104
2
OUTPUT
3
INPUT
1
ADJ/GND
2.7K
R1126
READY
PANEL_STATUS
AZ1117H-ADJTRE1(EH11A)
IC1101
2
OUTPUT
3
INPUT
1
ADJ/GND
DCDC_7.22V_PIP
22K
R1130
P_12V
402
1%
R1144
7.5K
R1120
1.2K
R1190
+1.2V_VDDC_MST
0.1uF
C1102
MP2355DN-LF-Z
IC1102
3
VIN
2
BST
4
LX
1
SS
5
GND
6
FB
7
COMP
8
RUN
+5V_MULTI
110
1%
R1123
0 . 1 u F
C1101
10K
R1189
P_5V
47uF25V
C1137
0.1uF
C1140
P_16V
10K
R1135
P_5V
AC_RST
0
R1125
P_5V
10uF
16V
C1107
0 . 0 1 u F
C1103
RL_ON
10K
R1133
10K
R1134
2.2uF
25V
C1125
DC_DIM
+5V_MULTI
0
READY
R1191
+2.5V_VDDM_MST
3.3K
1%
R1166
+5V_ST
SI4925DY
0TF492509AA
Q1101
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
365
1%
R1137
0 . 1 u F
C1115
0.1uF
C1136
0
R1132
100uF
16V
C1110
AZ1117H-ADJTRE1(EH11A)
IC1103
2
OUTPUT
3
INPUT
1
ADJ/GND
+5V_ST
12K
R1110
100uF
16V
C1105
0.01uF
C1144
+12V
4.7K
R1122
NOT SHARP 32&52",AUO
P_12V
220uF
16V
C1138
0.1uF
C1142
100uF
16V
C1149
0
R1115
SC4215ISTRT
IC1100
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
P_5V
59K
R1111
1uF
C1124
1uF 25V
C1126
330
1%
R1124
+5V_ST
100uF
16V
C1109
PANEL_ON
+5VST_MST
220uF
16V
C1100
100uF
16V
C1119
+5V_ST
0.1uF
C1139
+12V
0
READY
READY
R1188
I_DIMMING
DISP_EN
P_16V
10K
R1128
51
5%
R1165
0.01uF
C1150
RL_ON
100uF
16V
C1118
AC_DET
SAM2333
D1106
+5V_MULTI
100uF
16V
C1128
0 . 1 u F
C1111
0 . 0 1 u F
C1106
47
R1102
1.6K
R1131
2.2uF
25V
C1116
+5VST_MST
0.1uF
C1148
4.7K
R1138
0.47uF
C1121
E_DIMMING
2700pF
50V
C1113
MBRS190T3G
90V
D1103
+5V_TUNER
0.47uF
C1114
NOT SHARP 52",AUO
P_16V
0 . 0 1 u F
C1108
+5V_ST
10K
R1129
0.01uF
C1146
100uF
16V
C1141
1K
R1192
0 . 1 u F
C1112
+3.3V_MST
P_12V
10K
R1184
MBW3216-501TF
L1100
+16V_NTP
RT1C3904-T112
Q1100
E
B
C
2SC3875S
Q1102
1
2
3
RT1C3904-T112
Q1107
E
B
C
RT1C3904-T112
Q1106
E
B
C
SMAW200-24C
P1100
19
Power ON
14
GND
9
5V
4
GND
18
ACD
13
GND
8
GND
3
GND
17
E r r o r o u t
12
5V
7
GND
2
16V
16
AGND
11
5V
6
12V
1
16V
20
Inverter ON
15
GND
10
5V
5
12V
21
A.Dim
22
PWM Dim
23
S e l e c t
24
SYNC
MBR230LSFT1G
30V
D1100
5.6K
R1107
18K
R1106
33K
R1140
33K
R1141
2.2K
R1152
2.2K
R1154
2.2K
R1153
330
1%
R1194
USB
100uF
16V
C1151
USB
+5V_USB
AZ1117H-ADJTRE1(EH11A)
IC1107
USB
2
OUTPUT
3
INPUT
1
ADJ/GND
0 . 1 u F
C1120
USB
110
1%
R1195
USB
1/10W
100
5%
R1139-*1
PWM_DIM
1/10W
1K
5%
R1139
DC_DIM
0
R1163
S2A
D1102
50V
10uF
C1152
4.7uF
C1117
10K
READY
R1196
0
SHARP 52",AUO
SHARP 52",AUO
R1197
0
CMO 32,42,47
R1185
0
NOT (CMO 32,42,47,57, SHARP 32")
R1183
0
CMO 57"
R1187
0
CMO 57"
R1186
0
NOT CMO 57"
R1127
0
CMO 32,42,47,57
R1155
+5V_MULTI
0
R1105
0
NOT CMO 32,42,47,57
R1104
0
CMO 32,42,47,57
R1103
0 . 1 u F
C1154
100uF
16V
C1153
+5V_MULTI
MBW3216-501TF
L1103
USB
0.1uF
C1130
USB
1
R1148
+3.3V_HDMI_SW
+3.3V_USB
22uF
16V
C1129
USB
+3.3V_SDRAM
0 . 1 u F
C1156
+3.3V
10uF16V
C1133
TW9910 block
0.1uF
C1131
0.1uF
C1147
47uF
16V
C1145
0.01uF
C1132
0
R1149
+3.3V_MULTI_MST
47uF
16V
C1155
+1.8V
+12V
P_5V
EAM38769505
UBW2012-121F
L1104
120OHM
READY
L1108
EAM38769505
UBW2012-121F
L1105
L1107
UBW2012-121F
MBW3216-501TF
L1109
UBW2012-121F
120OHM
32 Sharp
L1110
UBW2012-121F
120OHM
NOT 32 Sharp
L1111
P_5V
VCC_LCD
AZ1117H-3.3
IC1105
2
OUTPUT
3
INPUT
1
ADJ/GND
AZ1117H-3.3
IC1108
2
OUTPUT
3
INPUT
1
ADJ/GND
0
5%
R1168
0
5%
R1170
OPT
R1167
READY
OPT
R1169
READY
AZ1117H-1.8TRE1(EH13A)
IC1106
2
OUTPUT
3
INPUT
1
ADJ/GND
OPT
R1150
READY
0
5%
R1151
0.1uF
C1122
0.1uF
C1123
UBW2012-121F
EAM38769505
L1106
MBW3216-501TF
EAM30764101
L1112
0 . 0 1 u F
C1134
22uF
16V
C1104
+5VST_MST
+5V_USB
+12V
OUT:2.6V
( 8 )
110mA
LED Block
12V->5V_TUNER
DC-DC CONVERTER
ST 5V->3.3V->1.2V
R1
SWITCH VCC_LCD:12V or 5V
OUT:1.25V
R2
e q u a l t o 2 2 0 u F p a d s i z e
5V:5V_PULLUP,5V_MULTI
OUT:UNDER 7.22V
SWITCH 5V->3.3V->1.8V
20mA
SWITCH 5V->DDR 2.5V
MAX 1A
MAX 1A
MAX 1A
R2
R1
R1
R1
R2
R2
V 0 = 0 . 8 ( R 1 + R 2 ) / R 2
*Applied to SIF,HDMI,ADC,MPLL,AUD
*3.3V_NTP,TW9910,ETC.
*NTP.USB,TW9910
*12V AUDIO and PANEL
*SHARP 32" : DC DIMMING
R1122
S h a r p 5 2 "
AUO
X
4.7K
O
R1197
CMO 32/42/47
O
O
CMO 57"
X
X
C1114
X
R1127
X
X
O
O
t h e R e s t ( w / C M O 2 6 " )
O
O
X
4.7K
4.7K
0 . 4 7 u F
X
0 . 4 7 u F
0 . 4 7 u F
X
R1183
O
O
X
O
R1155
O
X
X
X
X
X
X
R1185
O
R1103
O
O
X
R1186
O
X
X
X
X
X
X
R1187
O
X
X
X
X
X
O
X
X
X
O
O
R1104
*PANEL OPTION
X
S h a r p 3 2 "
X
X
X
X
X
O
X
X
X
X
PPWER
Oct., 2008
P/NO : MFL41394411
Oct., 2008
P/NO : MFL41394411