Read LG 52LG7500-ZB (CHASSIS:LD86F) Service Manual 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.
C954 470uF 16V
C971
100uF
16V
C959
100uF
16V
C969 100uF 16V
+5VST_1
C901 100uF 16V
C908
0.1uF
IC904
KA7809ERTM
2
3
1
C915 100uF 16V
C957 100uF 16V
D
900
K
D
S
226
KD
S2
2
6
A
L909
HH-1M3216-501
C907
100uF
16V
+9V_CXA2069
P_12V
L923
HH-1M3216-501
C962
0.1uF
C960
0.1uF
C977
0.1uF
C910
0.1uF
C972 0.1uF
C914
0.1uF
C900
0.1uF
C911
0.01uF
C905
0.01uF
IC900
BD9130NV
3
ITH
2
VCC
4
GND
1
ADJ
5
PGND
6
SW
7
PVCC
8
EN
C904
10uF
16V
C906
10uF
16V
C913
10uF
16V
L901 2uH
C916
330pF
50V
R906
10K
C902
10uF
16V
C958
100uF
16V
IC903
KIA7808AF
2
C
3
O
1
I
+8V_MSP4450
C920
0.01uF
C919
0.01uF
L902
HH-1M3216-501
L903
HH-1M3216-501
L904
HH-1M3216-501
R904
18K
L907
HH-1M3216-501
IC901
AZ1085S-3.3TR/E1
1
ADJ/GND
2
OUTPUT
3
INPUT
3.3V_CTZ
+3.3V_SWITCH
+2.5V_DDR_CTZ
1.8V_CORE_CTZ
TP979
TP905
TP906
TP907
TP908
TP909
TP910
TP911
TP912
TP913
TP914
TP915
TP916
TP917
TP918
TP919
TP920
C921 100uF 16V
C912 100uF 16V
C918 100uF 16V
R907
15K
1%
R908
12K
1%
L907-*1
0
0_OHM
+5VST_1
+5VST_2
L931
HH-1M3216-501
C990
0.1uF
C991
0.1uF
+5VST_3
+5VST_2
C993
0.1uF
C992
0.1uF
C941
15pF
C942
15pF
C945
15pF
C943
15pF
RL_ON/PWR_ONOFF_2
AC_DET
MUTE_MAIN
TXD
RXD
L934
HH-1M3216-501
C996
0.1uF
C997
0.1uF
3.3V_CTZ
3.3V_CTZ_1
+5VST_2
L932
HH-1M3216-501
Q910
2SC3875S
E
B
C
C949 15pF 50V
C987 0.1uF 16V
C931
0.01uF
47"42"37"_LGD
RL_ON/PWR_ONOFF_2
C980 0.1uF 16V
+5VST_1
+5VST_1
R921
10K
+5VST_1
R922
10K
+5VST_1
P_12V
C998 15pF 50V
Vbr_A
Q907 2SC3875S
E
B
C
R923
10K
AC_DET
C979 0.1uF 50V
Q909
2SC3875S
E
B
C
+5VST_1
INV_CTL/VAVS_ON
P_16V
R925
1K
C981 220uF 16V
R920 10K
Vbr_B
C930
15pF
Q908 2SC3875S
E
B
C
R914
1K
C950 15pF 50V
C940 0.47uF 25V
JP904
JP905
JP907
JP909
JP910
JP903
JP900
JP911
C924 330uF 35V
L911
MBW3216-501TF
L908
MBW3216-501TF
L913
MBW3216-501TF
L919
MBW3216-501TF
JP906
C999 1uF 10V
P900
SMW200-24C
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
L926
CB4532UK121E
R935
0
47"42"37"_LGD
+3.3V
C983
0.1uF
C984
0.1uF
C985
0.1uF
L906
HH-1M3216-501
C946
0.01uF
50V
C935
0.01uF
50V
C937
0.01uF
50V
C947
100pF
50V
C938
100pF
50V
C936
100pF
50V
IC902
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
R903
10K
L905
BG2012B121F
L912
BG2012B121F
L914
BG2012B121F
L915
BG2012B121F
L916
SW_RESET
C909
100pF
C944
0.01uF
C994 0.01uF
R928
10K
R930
10K
TP990
TP987
TP986
TP985
TP984
TP983
TP982
TP981
TP980
TP948
TP988
TP901
TP902
TP903
TP921
TP922
TP923
TP924
TP925
TP926
TP927
TP928
TP929
TP930
TP931
TP932
TP933
TP934
TP935
TP936
TP937
TP938
TP939
TP940
TP941
TP942
TP943
TP944
TP945
TP946
TP947
TP989
TP949
TP950
TP951
TP952
TP953
TP954
TP955
TP956
TP957
TP958
TP959
TP960
TP961
TP962
TP963
TP964
TP965
TP966
TP967
TP968
TP969
TP970
TP971
TP972
TP973
TP974
TP975
TP976
TP977
TP978
9. POWER
STAND-BY
MUST BE PLACED NEAR IC900
INSERT FILTER INTO POWER PLAN FOR EMI
C931
R935
C
2008
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