LG 37LV365C (CHASSIS:LP9DC) Service Manual ▷ View online
THERMAL
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.
10/12/29
LED DRIVER
R1124
10K
READY
+3.5V_MST
R1123
10K
R1118
6.8K
READY
+3.3V_MULTI
WLED_ENABLE
R1121
1K
R1122
10K
INV_CTL
IC100
MAX16814
1
IN
3
COMP
7
SETI
9
SGND
10
DIM
11
OUT1
12
OUT2
13
LEDGND
14
OUT3
15
OUT4
16
CS
17
PGND
18
NDRV
19
DRV
20
VCC
5
FLT
8
RSDT
6
OVP
4
RT
2
EN
21
[EP]PGND/LEDGND
R10007
4.7
4.7
1/10W
R10005
100
1/10W
READY
C10008
0.1uF
50V
0.1uF
50V
L10001
33uH
R10001
100
1/10W
Q10001
AP18T10GH
S
D
G
WLED_ENABLE
R10002
10K
1/10W
READY
10K
1/10W
READY
P7701
12507WR-06L
1
2
3
4
5
6
7
C10011
1000pF
1000pF
50V
READY
R10011
47K
1/10W
1/10W
1%
AUO_TN
R10019
16K
1/10W 5%
18.5_AUO_TN
16K
1/10W 5%
18.5_AUO_TN
R10006
390
1/10W
R10008
16K 1%
R10016
3K
1/8W
C10013
1000pF
1000pF
50V
C10009
1uF
10V
1uF
10V
R10015
3.3
1/10W
5%
3.3
1/10W
5%
C10017
1000pF
1000pF
50V
PWM_DIM_LED_DRIVER
R10012
5.1
5.1
READY
D10001
PDS5100H-13
C10002
2.2uF
50V
2.2uF
50V
R10021
0
0
1/10W
5%
5%
CMI_AUO_TN
C10012
2.2uF
100V
2.2uF
100V
R10020
0
0
1/10W
5%
5%
CMI_AUO_TN
C10006
2200pF
50V
2200pF
50V
R10017
0.1
1%
0.1
1%
C10003
100pF
50V
100pF
50V
+24V_LED_driver
C10021
0.1uF
50V
0.1uF
50V
C10022
10uF
100V
READY
100V
READY
C10019
1000pF
1000pF
50V
R10022
0
1/10W
5%
READY
C10010
1000pF
50V
READY
R10011-*1
27K
1/10W
27K
1/10W
1%
LGD_TN
C10014
10uF
100V
10uF
100V
R10018
560K
1/10W
560K
1/10W
ERROR_OUT
R10009
51K 1%
READY
R10010
10K
1/8W
C10016
10uF
100V
10uF
100V
READY
C10015
1000pF
1000pF
50V
R10004
100K
100K
1/10W
R10023
0
1/10W
5%
READY
R10014
7.5K
1/8W
7.5K
1/8W
C10004
100pF
50V
100pF
50V
R10003
100
1/10W
R10013
51K
1/10W
1/10W
5%
AUO_TN
R10019-*1
11K
1/10W 5%
11K
1/10W 5%
21.5_AUO_LGD_TN
C10001
2.2uF
50V
2.2uF
50V
C10018
2.2uF
100V
2.2uF
100V
C10007
0.33uF
50V
0.33uF
50V
R10013-*1
27K
1/10W
27K
1/10W
1%
LGD_TN
C10005
0.1uF
50V
0.1uF
50V
C10020
2.2uF
100V
2.2uF
100V
READY
R10019-*2
18K
1/10W 1%
18.5_CMI_TN
18K
1/10W 1%
18.5_CMI_TN
R10019-*3
13K
1/10W 5%
21.5_CMI_TN
13K
1/10W 5%
21.5_CMI_TN
R10011-*2
59K
1/16W 1%
CMI_TN
59K
1/16W 1%
CMI_TN
R10013-*2
59K
1/16W 1%
CMI_TN
59K
1/16W 1%
CMI_TN
Q1102
MMBT3904(NXP) E
B
C
TN_module_LED_DRIVER_CIRCUIT
3.3K -> 1K (threshold voltage up)
10 12
’11 ATV(H6R)
must be modifed
F=7.35x10^9/RT
R120 : 6.8K --> 3K
R121 : 0.03 --> 0.1
ESD protection solution
must be modifed
R111 : 470 --> 390
OVP=1.23x(1+R1/R2)
close to IC100
2010.06.30. hwson
for thermal Issue
for thermal Issue
close to IC100
C106 : 0.68uF --> 0.33uF
Operating Freq.
2010.02.07 for PQ/19V_LED
C104 : 10uF --> 2.2nF
R113/R114
2010.06.30 HWSON
wafer modify & resister add
LP91U
EAX64049202
18.5 AUO
21.5 AUO
21.5 LGD
min
Typ
Max
30
34
36
52.8
48
57.6
51.2
-
56
63mA_Max
16Kohm
Vs spec
56V_Max
ILED=1500/RSETI
560Kohm
27Kohm
R10011
AUO_21.5
Module
52.8V_Typ
47Kohm
120mA_Max
34V_Typ
27Kohm
11Kohm
R10013
57.6V_Max
R10018
ILED spec
AUO_21.5_FHD
AUO_18.5_HD
AUO_18.5
560Kohm
Module
51Kohm
11Kohm
LGD_21.5_FHD
LGD_21.5
R10019
51.2V_Typ
60mA_Typ
OVP setting
36V_Max
110mA_Typ
560Kohm
50mA_Typ
59Kohm
59Kohm
CMI_18.5_HD
56mA_Max
CMI_21.5_FHD
33V_Typ
44.8V_Typ
47.6V_Max
47.6V_Max
560Kohm
CMI_21.5
18Kohm
560Kohm
34V_Max
CMI_18.5
13Kohm
34
18.5 CMI
47.6
33
28
21.5 CMI
39.2
44.8
Remark
61.35mA
111.11mA
50.85mA
39.5V
63.85V
63.85V
44.28V
54.26V
Remark
OVP setting
LGD TN
CMI & AUO TN
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.
10/12/22
LVDS
C423
1000pF
50V
READY
1000pF
50V
READY
P405
FF10001-30
WAFER_HD_19_22
1
[30]
2
[29]
3
[28]
4
[27]
5
[26]
6
[25]
7
[24]
8
[23]
9
[22]
10
[21]
11
[20]
12
[19]
13
[18]
14
[17]
15
[16]
16
[15]
17
[14]
18
[13]
19
[12]
20
[11]
21
[10]
22
[09]
23
[08]
24
[07]
25
[06]
26
[05]
27
[04]
28
[03]
29
[02]
30
[01]
31
.
PANEL_VCC
C422
10uF
16V
10uF
16V
READY
L413
120-ohm
HD_19_22
C424
0.1uF
16V
0.1uF
16V
HD_19_22
C419
10uF
16V
10uF
16V
READY
P404
FF10001-30
WAFER_FHD_22_TN
1
[30]
2
[29]
3
[28]
4
[27]
5
[26]
6
[25]
7
[24]
8
[23]
9
[22]
10
[21]
11
[20]
12
[19]
13
[18]
14
[17]
15
[16]
16
[15]
17
[14]
18
[13]
19
[12]
20
[11]
21
[10]
22
[09]
23
[08]
24
[07]
25
[06]
26
[05]
27
[04]
28
[03]
29
[02]
30
[01]
31
.
L412
120-ohm
FHD_22_TN
C420
1000pF
50V
READY
1000pF
50V
READY
C421
0.1uF
16V
0.1uF
16V
FHD_22_TN
PANEL_VCC
R448
10K
READY
+3.3V_MULTI
C413
10uF
16V
10uF
16V
READY
PANEL_VCC
L409
120-ohm
FHD_51P
C416
10uF
16V
10uF
16V
READY
C418
0.1uF
16V
0.1uF
16V
HD_LARGE
C417
1000pF
50V
1000pF
50V
READY
C414
1000pF
50V
1000pF
50V
READY
L410
120-ohm
HD_LARGE
C415
0.1uF
16V
0.1uF
16V
FHD_51P
PANEL_VCC
P402
FF10001-30
WAFER_HD_LARGE
1
[30]
2
[29]
3
[28]
4
[27]
5
[26]
6
[25]
7
[24]
8
[23]
9
[22]
10
[21]
11
[20]
12
[19]
13
[18]
14
[17]
15
[16]
16
[15]
17
[14]
18
[13]
19
[12]
20
[11]
21
[10]
22
[09]
23
[08]
24
[07]
25
[06]
26
[05]
27
[04]
28
[03]
29
[02]
30
[01]
31
.
+3.3V_MULTI
P401
FI-RE51S-HF-J-R1500
WAFER_FHD_51P
1
[51]
2
[50]
3
[49]
4
[48]
5
[47]
6
[46]
7
[45]
8
[44]
9
[43]
10
[42]
11
[41]
12
[40]
13
[39]
14
[38]
15
[37]
16
[36]
17
[35]
18
[34]
19
[33]
20
[32]
21
[31]
22
[30]
23
[29]
24
[28]
25
[27]
26
[26]
27
[25]
28
[24]
29
[23]
30
[22]
31
[21]
32
[20]
33
[19]
34
[18]
35
[17]
36
[16]
37
[15]
38
[14]
39
[13]
40
[12]
41
[11]
42
[10]
43
[09]
44
[08]
45
[07]
46
[06]
47
[05]
48
[04]
49
[03]
50
[02]
51
[01]
52
.
R417
0
HD_LARGE
R444
0
FHD_51P_IPS
R418
0
READY
R420
4.7K
4.7K
READY
TXCE0+
TXCE0-
TXCE1+
TXCE1-
TXCE2+
TXCE2-
TXCLKE+
TXCLKE-
TXCE3+
TXCE3-
TXCE4+
TXCE4-
TXCO0+
TXCO0-
TXCO1+
TXCO1-
TXCO2+
TXCO2-
TXCLKO+
TXCLKO-
TXCO3+
TXCO3-
TXCO4+
TXCO4-
TXCO3-
TXCO3+
TXCLKO-
TXCLKO+
TXCO2-
TXCO2+
TXCO1-
TXCO1+
TXCO0-
TXCO0+
TXCE3-
TXCE3+
TXCLKE-
TXCLKE+
TXCE2-
TXCE2+
TXCE1-
TXCE1+
TXCE0-
TXCE0+
TXCE3-
TXCE3+
TXCLKE-
TXCLKE+
TXCE2-
TXCE2+
TXCE1-
TXCE1+
TXCE0-
TXCE0+
TXCE3-
TXCE3+
TXCLKE-
TXCLKE+
TXCE2-
TXCE2+
TXCE1-
TXCE1+
TXCE0-
TXCE0+
R421
10K
READY
R434
10K
FHD_51P_BIT_SEL_LOW
R447
4.7K
4.7K
READY
R449
0
READY
MDS62110205
GAS1-*2
7.5T_GAS
MDS61887710
GAS1-*4
9.5T_GAS
MDS61887708
GAS2-*5
12.5T_GAS
MDS62110209
GAS2-*3
8.5T_GAS
MDS62110204
GAS1
5.5T_GAS
MDS62110204
GAS2
5.5T_GAS
MDS62110206
GAS2-*1
6.5T_GAS
MDS62110205
GAS2-*2
7.5T_GAS
MDS61887710
GAS2-*4
9.5T_GAS
MDS62110209
GAS1-*3
8.5T_GAS
MDS62110206
GAS1-*1
6.5T_GAS
MDS61887708
GAS1-*5
12.5T_GAS
[30Pin LVDS Connector]
(For HD 60Hz_19"/22")
(For HD 60Hz_19"/22")
[30Pin LVDS Connector]
(For FHD 60Hz_22"TN)
(For FHD 60Hz_22"TN)
LVDS WAFER
LVDS_SEL
11 12
JEIDA
L
CMI
H/NC
VESA
LGD
H
L/NC
AUO
TBD
’11 ATV(H6R)
LP91U
EAX64049202
[51Pin LVDS Connector]
(For FHD 60Hz_Large)
(For FHD 60Hz_Large)
[30Pin LVDS Connector]
(For HD 60Hz_Large)
(For HD 60Hz_Large)
L/NC
H
IPS
TBD
SMD GASKET
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.
10/12/29
Hotel opt(CHINA)
IC2100
TPA3124D2PWPR
EXT_SPK
3
PVCCL_2
2
SD
4
MUTE
1
PVCCL_1
6
RIN
5
LIN
7
BYPASS
8
AGND_1
9
AGND_2
10
PVCCR_1
11
VCLAMP
12
PVCCR_2
13
PGNDR_1
14
PGNDR_2
15
ROUT
16
BSR
17
GAIN1
18
GAIN0
19
AVCC_1
20
AVCC_2
21
BSL
22
LOUT
23
PGNDL_1
24
PGNDL_2
C2114
2.2uF
50V
EXT_SPK
2.2uF
50V
EXT_SPK
C2106
0.1uF
50V
EXT_SPK
R2113
10K
EXT_SPK
R2108
10K
READY
C2108
0.22uF
25V
0.22uF
25V
EXT_SPK
MNT_L_AMP
R2112
10K
EXT_SPK
R2111
4.7K
4.7K
EXT_SPK
L2101
CB3216UA121
EXT_SPK
C2101
1uF
16V
1uF
16V
EXT_SPK
MNT_R_AMP
R2107
10K
10K
EXT_SPK
R2110
4.7K
4.7K
EXT_SPK
C2115
2.2uF
50V
2.2uF
50V
EXT_SPK
SPK_OUT_MUTE
C2113
2.2uF
50V
2.2uF
50V
EXT_SPK
R2106
10K
READY
C2100
1uF
16V
1uF
16V
EXT_SPK
L2100
CB3216UA121
EXT_SPK
EXT_SPK_R
EXT_SPK_L
C2110
0.1uF
50V
0.1uF
50V
EXT_SPK
R2109
10K
10K
EXT_SPK
C2116
100uF
16V
100uF
16V
EXT_SPK
C2111
10uF
35V
35V
EXT_SPK
R2116
10K
10K
EXT_SPK
C2104
1uF
1uF
EXT_SPK
C2112
2.2uF
50V
2.2uF
50V
EXT_SPK
+24V_AMP
C2107
0.1uF
50V
EXT_SPK
C2109
0.22uF
25V
0.22uF
25V
EXT_SPK
C2102
10uF
35V
10uF
35V
EXT_SPK
C2103
22uF
35V
35V
EXT_SPK
C2105
1uF
1uF
EXT_SPK
C2117
100uF
16V
EXT_SPK
L2102
22.0uH
22.0uH
EXT_SPK
L2103
22.0uH
EXT_SPK
R2115
4.7K
EXT_SPK
SW_RESET
R2104
10K
10K
EXT_SPK
+24V_AMP
R2103
1K
EXT_SPK
R2102
100
100
READY
R2114
0
0
READY
Q2100
MMBT3904(NXP)
MMBT3904(NXP)
EXT_SPK
E
B
C
Q2101
MMBT3904(NXP)
MMBT3904(NXP)
EXT_SPK
E
B
C
Hotel option for China(External speaker out)
12 12
EXT_SPEAKER_AMP
’11 ATV(H6R)
LP91U
EAX64049202
- 21 -