Read LG 72LZ9900-CA (CHASSIS:LC12N) Service Manual online
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.
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.
C923
120pF
50V
C950
0.22uF
50V
R930
0
1/10W
C921
10uF
25V
OPT
10uF
25V
OPT
R906
33
GPM_ON
R946
0
1/10W
C948
0.22uF
50V
0.22uF
50V
OPT
C905
10uF
25V
10uF
25V
L903
22uH
2.2A
C952
0.1uF
50V
0.1uF
50V
OPT
CTRLP_S
R922
33
D902
100V
1N4148W
C938
10uF
25V
10uF
25V
R903-*1
150K
150K
1%
MAXIM_PMIC
C917
0.01uF
50V
0.01uF
50V
C930
10uF
25V
OPT
10uF
25V
OPT
C951
0.22uF
50V
SWB_S
R936
5.1K
C909
0.47uF
50V
R924
18K
1/10W
R935
0
1/10W
C915
10uF
25V
10uF
25V
C919
10uF
25V
OPT
10uF
25V
OPT
L901
22uH
22uH
VCC_LCM_S
(+3.3V)
VL_S
(+5V)
DPM
VCC_LCM_S
(+3.3V)
C954
10uF
25V
10uF
25V
VGL_FB_S
VLCD_POWER
(+12V)
Q902
2SC3052
2SC3052
E
B
C
C924
10uF
25V
10uF
25V
R903
47K
TI_PMIC
C927
10uF
25V
OPT
10uF
25V
OPT
R917
0
1/10W
TH1000
47k-ohm
L902
10uH
3.1A
10uH
3.1A
VDD_LCM_S
(+16.8V)
VGL_FB_S
CTRLP_S
R905
0
1/10W
VL_S
(+5V)
R915
0
1/10W
C947
0.22uF
50V
0.22uF
50V
OPT
R948
3.6K
1/10W
R902
0
1/10W
R938
9.1K
1/8W
VDD_LCM_S
(+16.8V)
C907
10uF
25V
OPT
10uF
25V
OPT
C944
0.1uF
0.1uF
50V
R943
0
OPT
D905
100V
1N4148W
C932
10uF
25V
10uF
25V
I2C_SCL_S
VGH_SL
(+27V)
D901
100V
1N4148W
GSC
R907
33
GPM_OFF
VGH_SL
(+27V)
VCORE_S
(+1.0V)
R904
2.7K
I2C_SDA_S
R918
680
TCOMP_S
VDD_LCM_S
(+16.8V)
C945
10uF
25V
OPT
10uF
25V
OPT
VCC_LCM_S
(+3.3V)
R923
33
C942
10uF
25V
OPT
10uF
25V
OPT
R908
120K
TI_PMIC
HVDD_S
(+8.4V)
R920
0
1/10W
R910
OPT
VGL_S
(-5V)
R914
2.2
C902
10uF
25V
10uF
25V
R909
10
10
1/10W
VLCD_POWER
(+12V)
TCOMP_S
C933
1uF
25V
1uF
25V
C901
56pF
50V
C916
1uF
25V
25V
R912
0
1/10W
C918
0.1uF
50V
C914
1000pF
C931
4.7uF
50V
C953
10uF
25V
10uF
25V
C903
10uF
25V
10uF
25V
D903
40V
SMAB34
R941
0
C925
0.1uF
50V
0.1uF
50V
VGH_SL
(+27V)
R911
33
D904
40V
SMAB34
C910
1uF
25V
25V
R913
OPT
C912
0.1uF
50V
0.1uF
50V
VLCD_POWER
(+12V)
C928
0.1uF
50V
R901
15K
1%
C906
10uF
25V
10uF
25V
R933
0
1/10W
C922
10uF
25V
10uF
25V
C934
10uF
25V
10uF
25V
SWB_S
Q901
MMBT3906(NXP)
E
B
C
C908
0.47uF
50V
FLK
R942
2K
1/8W
1%
OPT
C936
10uF
25V
10uF
25V
C920
0.1uF
50V
0.1uF
50V
C929
4.7uF
50V
D906
100V
1N4148W
VGH_S
(+27V)
C904
10uF
25V
OPT
10uF
25V
OPT
R921
18K
1/10W
C911
10uF
25V
10uF
25V
C935
10uF
25V
10uF
25V
C913
0.1uF
50V
0.1uF
50V
I2C_SDA_S
GMA10_S
C939
4.7uF
50V
4.7uF
50V
GMA12_S
VCC_LCM_S
(+3.3V)
GMA13_S
C946
0.1uF
50V
0.1uF
50V
HVDD_S
(+8.4V)
R949
33
R951
10K
I2C_SDA_S
C949
1uF
25V
GMA16_S
GMA9_S
R934
33
C956
1uF
10V
1uF
10V
C943
4.7uF
50V
4.7uF
50V
GMA4_S
R937
10K
C940
1uF
10V
10V
VDD_LCM_S
(+16.8V)
GMA14_S
C955
4.7uF
50V
4.7uF
50V
I2C_SCL_S
GMA7_S
GMA15_S
VCC_LCM_S
(+3.3V)
GMA3_S
R925
10K
GMA18_S
C959
1uF
25V
GMA5_S
HVDD_S
(+8.4V)
VDD_LCM_S
(+16.8V)
R931
33
GMA1_S
I2C_SCL_S
R950
33
R926
0
C957
4.7uF
50V
4.7uF
50V
R944
0
R927
22
C958
0.1uF
50V
0.1uF
50V
R945
22
R947
10K
GMA6_S
VCC_LCM_S
(+3.3V)
R929
10K
OPT
R928
10K
R940
0
OPT
VCOM_R_S
R952
0
OPT
VCOM_L_S
R908-*1
68K
MAXIM_PMIC
R939
10
10
1/10W
C926
2200pF
50V
R919
33K
IC904
BUF08630
1
SDA
3
DVDD
7
AVDD_AVDD
9
BKSEL
10
GM1
11
GM2
12
GM3
13
GM4
14
GM5
15
GM6
16
NC_1
17
HVDD
18
GM7
19
GM8
20
SCL
5
VCOM_OUT
8
AVDD_1
6
VCOM_FB
4
VCOM_GND
2
A0
21
EP[GND]
IC903
BUF08630
1
SDA
3
DVDD
7
AVDD_AVDD
9
BKSEL
10
GM1
11
GM2
12
GM3
13
GM4
14
GM5
15
GM6
16
NC_1
17
HVDD
18
GM7
19
GM8
20
SCL
5
VCOM_OUT
8
AVDD_1
6
VCOM_FB
4
VCOM_GND
2
A0
21
EP[GND]
IC901
KIA3820FK
3
RE
2
VGH_M
4
CE
1
VGH
5
VDD
6
VDPM
7
GND
8
VFLK
L904
2.2uH
IC902
MAX17139
3
VL
2
TCOMP
4
AGND
1
EN1
6
PVINB3
5
AVIN
7
BST3
8
SWB3
9
OUT3
10
PGND3
11
SS
12
COMP
13
PGND_1
14
PGND_2
15
SW_1
16
SW_2
17
SWI
18
SWO
19
NC_1
20
CTRLP
21
VGH
22
VGL
23
NC_2
24
CTRLN
25
NC_3
26
RST
27
A0
28
SCL
29
SDA
30
VLOGIC2
31
PGND2
32
SWB2
33
VLOGIC1
34
NC_4
35
SWB1_1
36
SWB1_2
37
BST1
38
PVINB12_1
39
PVINB12_2
40
NC_5
41
[EP]AGND
R932
680
R916
0
C937
22uF
10V
22uF
10V
C941
22uF
10V
22uF
10V
Place Bottom
[slave GPM Block]
Place Bottom
Place Bottom
Place Bottom
to prevent inrush current
Place Bottom
[Slave PMIC Block]
GP3 72" IOL
10
11
2010. 10. 05
Slave PMIC/P-Gamma
[Slave P-Gamma Block]
0xEA
0xE8
to prevent inrush current
Click on the first or last page to see other 72LZ9900-CA (CHASSIS:LC12N) service manuals if exist.