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27LS5400, 27LS540T (CHASSIS:LD02M) - LG TV Service Manual (repair manual). Page 30

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THERMAL
THERMAL
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.
POWER
C826
10uF
10V
FULL NIM
R838
15K
1%
C837
0.1uF
50V
+19V
C856
10uF
10V
JP801
+3.3V_ST
R877
1
OPT
R876
0
D805
40V
SMAB34
FULL NIM
R872
1
R862
13K
1%
FULL NIM
C807
0.1uF
16V
+3.3V_AVDD
C842
10uF
10V
C827
0.1uF
50V
FULL NIM
R807
1K
OPT
OLP
IC805
AP1117E18G-13 
2
OUT
3
IN
1
ADJ/GND
R873
10K
OPT
C824
0.01uF
50V
FULL NIM
C810
0.1uF
50V
D802
40V
SMAB34
C897
10uF
10V
OPT
R801
100K
C818
0.1uF
50V
C894
0.1uF
50V
OPT
POWER_ON/OFF1
C896
10uF
10V
C814
0.1uF
50V
+3.3V_AMP
R867
4.7K
1%
FULL NIM
R851
47K 1%
Q804
MMBT3904(NXP)
E
B
C
C892
1uF
10V
C895
0.1uF
50V
C4070
220pF
50V
R865
1
R819
0
+1.8V_TUNER
C808
150pF
50V
OPT
L802
10uH
+3.3V_ST
C906
0.1uF
50V
OPT
C890
4.7uF
10V
OPT(4.7uF)
JP800
R858
2.7K
1%
FULL NIM
+1.23V_TUNER
C823
0.1uF
50V
OPT
+3.3V_AVDD
C899
0.1uF
50V
OPT
R816
68K
IC810
AP2114H-2.5TRG1
GND
VOUT
VIN
+3.3V_TUNER
+2.5V_AVDD
R859
30K
1%
FULL NIM
IC801
TJ4220GDP-ADJ 
FULL NIM
3
VIN3
2
EN2
4
NC4
1
NC_1
5
NC_2
6
VOUT
7
ADJ/SENSE
8
GND
9
[EP]GND
C843
1uF
10V
C828
10uF
10V
FULL NIM
R815
300K
R806
10K
OPT
R824
0
C861
0.1uF
50V
C868
0.01uF
50V
MULTI_ON
POWER_ON/OFF1
R800
100K 1%
C811
0.47uF
16V
OPT
R811
100K 1%
OPT
C830
0.01uF
50V
C866
0.1uF
50V
R830
0
C816
0.1uF
50V
C819
0.47uF
16V
OPT
C850
150pF
50V
OPT
MULTI_ON
POWER_ON/OFF1
+1.24V_VDDC
+5V_GENERAL
C813
0.47uF
16V
OPT
R826
0
C863
0.1uF
50V
C806
0.1uF
50V
C825
0.01uF
50V
+5V_USB
L806
10uH
R835
33K 1%
R827
10K
1%
R831
10K
1%
R825
10K
1%
R834
33K 1%
R841
3.3K 1%
C891
1uF
25V
R802
4.7K
OPT
R805
4.7K
R812
4.7K
L803
10uH
L805
10uH
R854
0
OPT
C881
47pF
50V
OPT
C898
4.7uF
10V
R846
12K 1%
R803
36K
C820
47uF
25V
R888
47
R891
47K
R869
47
R892
47K
R893
47K
R871
47
R822
1.8K
C841
8200pF
25V
R809
10
R870
100K
+5V_GENERAL
IC2602
MP1584EN
3
COMP
2
EN
4
FB
1
SW
5
GND
6
FREQ
7
VIN
8
BST
9
[EP]GND
R845
12K 1%
C867
0.1uF
50V
OPT
C857
0.01uF
50V
R879
0
C817
0.1uF
50V
OPT
+1.5V_DDR
C805
10uF
10V
IC807
TJ4220GDP-ADJ 
3
VIN3
2
EN2
4
NC4
1
NC_1
5
NC_2
6
VOUT
7
ADJ/SENSE
8
GND
9
[EP]GND
C864
10uF
10V
POWER_ON/OFF1
R817
4.7K
+3.3V_AMP
+3.3V_ST
R814
0
OPT
R833
10K
1%
R844
10K
1%
R832
1K
1%
R849
0
5%
JK800
KJA-DC-1-0032
1
2
4
C846
0.22uF
16V
C853
47uF
25V
C852
47uF
25V
C812
47uF
25V
C855
47uF
25V
C832
4700pF
50V
C833
4700pF
50V
R820
8.2K
R818
8.2K
C847
330pF
50V
C845
330pF
50V
R875
22K
R874
100
C836
10uF
10V
IC800
MP1472GJ-C452-Z 
3
COMP
2
EN
4
FB
1
SS
5
GND
6
SW
7
IN
8
BST
IC802
MP1472GJ-C452-Z 
3
COMP
2
EN
4
FB
1
SS
5
GND
6
SW
7
IN
8
BST
IC806
MP1472GJ-C452-Z 
3
COMP
2
EN
4
FB
1
SS
5
GND
6
SW
7
IN
8
BST
R855
2K
1%
R848
560 1%
R884
180K
R885
180K
R898
180K
OPT
R840
10K
R843
1K
R839
4.7K
Q802
MMBT3904(NXP)
E
B
C
+5V_GENERAL
PANEL_CTL
C882
1uF
25V
C879
4.7uF
10V
OPT(4.7uF)
R842
22K
+5V_PANEL_POWER
R804
100K 1%
OPT
MULTI_ON
POWER_ON/OFF1
C838
0.033uF
50V
C835
0.033uF
50V
C802
10uF
10V
C862
10uF
10V
OPT
C840
10uF
10V
Q805
PMV48XP
G
D
S
IC803
AP1117E33G-13 
2
OUT
3
IN
1
ADJ/GND
Q803
ZXMP3F30FHTA
G
D
S
C865
0.01uF
50V
L807
CPI2520NHL3R3ME
2520
3.3uH
R836
10K
+19V_AMP_VCC
R810
10K
C834
0.01uF
50V
C839
2.2uF
50V
C860
3.3uF
50V
Q807
AO3407A
G
D
S
Q806
MMBT3904(NXP)
E
B
C
MULTI_ON
C809
0.1uF
50V
OPT
+19V_SCART
R887
0
R880
10K
R821
12K
C859
10uF
10V
OPT
C858
10uF
10V
OPT
C804
10uF
25V
C803
10uF
25V
C800
10uF
25V
C801
10uF
25V
OPT
19V TO 5V DCDC CONVERTER
7     11
POWER
PANEL POWER CONTROL
 Not used :
 only for small(ready)
19V TO 5V DCDC CONVERTER
5V TO 1.24V DCDC CONVERTER
111116
Panel switch deletion
111201
Panel switch recover
11.10.27
11.10.27
11.11.05
POWER_ON/OFF1
VOLTAGE HIGHER
111129
Discharging R DEL
(0RJ2201J674)
1000Hr->2000Hr
11.10.27
11.11.07
0->47K
11.11.07
0->47
11.11.07
0->47
11.11.07
0->47K
11.11.07
0->47
11.11.07
0->47K
11.11.07
R822 68K->1.8K
C841 4700pF->8200pF
3.3V TO 1.5V LDO
3.3V TO 1.23V LDO
11.11.29
0.047uF->0.033uF
150K->180K
11.11.07
6604->6601
11.11.07
0.1uF->0.22uF
11.11.14
0CE476WH6DC(1000hr)->
EAE61423901(2000hr)
11.11.14
0CE476WH6DC(1000hr)->
EAE61423901(2000hr)
11.11.14
0CE476WH6DC(1000hr)->
EAE61423901(2000hr)
11.11.14
0CE476WH6DC(1000hr)->
EAE61423901(2000hr)
11.11.14
2200pF->4700pF
10K->8.2K
150pF->330pF
11.11.14
2200pF->4700pF
10K->8.2K
150pF->330pF
111116
EBK61011501(Diode)
->EBK38029201(Rohm)
->EBK61913601(NXP) 3.3V drive
111116
10K->22K
1K->100
11.11.28
1.2K->2K
11.11.28
270->560
111129
47uF DEL
11.11.29
0.047uF->0.033uF
150K->180K
11.11.29
Diode DEL
0DSKE00048A
EBK38029201(Rohm)
EBK61011501(Diode)
11.11.15
10K->22K
11.12.01
LDO change
EAN56716601 (5A)
->EAN54428101 (1A)
11.12.20
LDO change
EAN54428101 (1A) adj
->EAN54428601  (1A) 3.3v
11.12.22
Maker:Rohm->Diode
Supply issue
due to Typoon
11.11.15
Maker:Diode->Rohm
AMP_VCC Control
AMP_VCC
AO3407A Vgs : 10.8V(24V input)
AO3407A Vgs : 10.36V(19V input)
DMxx52/Mxx52
12.03.08
EAE61081701(25V)->
EAE52158501(10V)
12.03.08
EAE61081701(25V)->
EAE52158501(10V)
12.03.08
EAE42868301(3225)->
EAE61081701(3216)
12.03.08
EAE42868301(3225)->
EAE61081701(3216)
12.03.08
EAE42868301(3225)->
EAE61081701(3216)
12.03.08
EAE42868301(3225)->
EAE61081701(3216)
Mxx32
EAX64559005
2012.05.23
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