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.
SIGN569
VLCD_POWER
(+12V)
R824
10K
C828
0.1uF
50V
0.1uF
50V
VCOM_R_M
D801
100V
1N4148W
C856
0.22uF
50V
0.22uF
50V
OPT
C857
0.22uF
50V
0.22uF
50V
OPT
R871
0
1/10W
R827
0
1/10W
L802
22uH
22uH
TH900
47k-ohm
C820
0.1uF
50V
0.1uF
50V
C836
4.7uF
50V
4.7uF
50V
C819
10uF
25V
10uF
25V
R865
0
R834
33
DPM
C810
0.1uF
50V
0.1uF
50V
C817
0.47uF
50V
C851
10uF
25V
10uF
25V
C837
0.1uF
50V
GMA5_M
R831
0
1/10W
R852
10K
VDD_LCM_M
(+16.8V)
HVDD_M
(+8.4V)
C814
1uF
25V
I2C_SCL_M
C815
10uF
25V
OPT
10uF
25V
OPT
R842
22
C835
10uF
25V
OPT
10uF
25V
OPT
R840
680
D805
100V
1N4148W
C843
0.1uF
50V
0.1uF
50V
C808
4.7uF
50V
4.7uF
50V
L804
22uH
2.2A
VGH_MA
(+27V)
VL_M
(+5V)
VGH_MA
(+27V)
R866
2K
1/8W
1%
OPT
CTRLP_M
C807
10uF
25V
10uF
25V
Q802
2SC3052
2SC3052
E
B
C
GMA6_M
R858
0
1/10W
GSC
R849
33
R861
0
1/10W
GMA1_M
R863
9.1K
1/8W
GMA13_M
C812
10uF
25V
10uF
25V
HVDD_M
(+8.4V)
C849
1uF
25V
TCON_RST
Q801
MMBT3906(NXP)
E
B
C
R828
33
C827
10uF
25V
OPT
10uF
25V
OPT
R841
0
R853
18K
1/10W
C830
10uF
25V
10uF
25V
C840
10uF
25V
OPT
10uF
25V
OPT
R846
0
1/10W
R811
15K
1%
R839
0
1/10W
VCC_LCM_M
(+3.3V)
R829
47K
TI_PMIC
C839
1uF
10V
1uF
10V
C862
10uF
25V
10uF
25V
I2C_SDA_M
VCC_LCM_M
(+3.3V)
VDD_LCM_M
(+16.8V)
I2C_SDA_M
R825
0
VGL_M
(-5V)
VCC_LCM_M
(+3.3V)
TCOMP_M
I2C_SDA_M
C825
0.01uF
50V
0.01uF
50V
TCOMP_M
GMA15_M
R845
33
R829-*1
150K
150K
1%
MAXIM_PMIC
VDD_LCM_M
(+16.8V)
R833
10
10
1/10W
D806
100V
1N4148W
SWB_M
VL_M
(+5V)
C833
0.1uF
50V
0.1uF
50V
VGL_FB_M
C841
4.7uF
50V
4.7uF
50V
R860
0
1/10W
C853
10uF
25V
OPT
10uF
25V
OPT
R822
OPT
L803
10uH
3.1A
10uH
3.1A
R870
0
FLK
R872
3.6K
1/10W
C821
0.1uF
50V
0.1uF
50V
C860
0.1uF
50V
0.1uF
50V
OPT
C826
0.1uF
50V
C803
56pF
50V
GMA12_M
C809
10uF
25V
10uF
25V
C855
10uF
25V
OPT
10uF
25V
OPT
C813
10uF
25V
10uF
25V
R815
33
GPM_OFF
SWB_M
C861
10uF
25V
10uF
25V
R836
2.2
R859
680
C846
10uF
25V
10uF
25V
CTRLP_M
C818
1uF
25V
25V
GMA14_M
VGH_MA
(+27V)
C845
1uF
25V
1uF
25V
C805
4.7uF
50V
4.7uF
50V
C854
0.1uF
0.1uF
50V
R862
5.1K
D804
40V
SMAB34
VCORE_M
(+1.0V)
VGH_M
(+27V)
HVDD_M
(+8.4V)
R835
10K
VCC_LCM_M
(+3.3V)
C823
10uF
25V
10uF
25V
D802
100V
1N4148W
C829
10uF
25V
OPT
10uF
25V
OPT
C847
10uF
25V
10uF
25V
C831
120pF
50V
C858
0.22uF
50V
VCC_LCM_M
(+3.3V)
R817
33
C859
0.22uF
50V
R821
0
1/10W
GMA3_M
C822
1000pF
GMA7_M
C832
10uF
25V
10uF
25V
R832
120K
TI_PMIC
R857
10K
C816
0.47uF
50V
C848
10uF
25V
10uF
25V
R826
22
R848
33
VGL_FB_M
VCC_LCM_M
(+3.3V)
R844
10K
C842
4.7uF
50V
VLCD_POWER
(+12V)
R851
33
R850
18K
1/10W
I2C_SCL_M
D803
40V
SMAB34
R816
OPT
R837
0
1/10W
R847
33
VDD_LCM_M
(+16.8V)
C806
1uF
10V
1uF
10V
R814
33
GPM_ON
VLCD_POWER
(+12V)
GMA18_M
I2C_SCL_M
GMA10_M
GMA16_M
C811
10uF
25V
OPT
10uF
25V
OPT
VDD_LCM_M
(+16.8V)
C844
10uF
25V
10uF
25V
C824
1uF
25V
25V
C838
4.7uF
50V
R830
2.7K
GMA4_M
GMA9_M
R838
0
VCC_LCM_M
(+3.3V)
R854
10K
R855
10K
OPT
VCOM_R_M
R867
0
R868
0
R869
0
VCOM_L_M
VCOM_R_S
VCOM_L_S
VCOM_L_M
R856
0
OPT
R864
10
10
1/10W
R832-*1
68K
MAXIM_PMIC
R843
33K
C834
2200pF
50V
IC805
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]
IC803
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]
IC801
KIA3820FK
3
RE
2
VGH_M
4
CE
1
VGH
5
VDD
6
VDPM
7
GND
8
VFLK
L805
2.2uH
IC804
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
C850
22uF
10V
22uF
10V
C852
22uF
10V
22uF
10V
R807
33
I2C_SDA_M
+3.3V_FRC
L801
CIS21J121
R812
2K
I2C_SCL_S
C802
0.1uF
16V
0.1uF
16V
I2C_EN_M
R802
1.2K
R806
33
R820
10K
10K
R803
1.2K
R810
33
I2C_SCL_S
+3.3V_Hub
I2C_SDA
C804
0.1uF
16V
0.1uF
16V
I2C_SCL_M
R808
33
+3.3V_Hub
I2C_SDA_S
R818
10K
10K
R823
10K
10K
I2C_SDA_S
I2C_SCL
R804
1.2K
R809
33
IC802
PCA9516APW
3
SCL1
2
SDA0
4
SDA1
1
SCL0
6
SCL2
5
EN1
7
SDA2
8
GND
9
EN2
10
SCL3
11
SDA3
12
EN3
13
SCL4
14
SDA4
15
EN4
16
VCC
C801
0.1uF
16V
0.1uF
16V
I2C_SDA_M
R813
2K
R801
1.2K
I2C_SCL_M
R805
33
I2C_EN_S
I2C_SDA
SW801
JS2235S
3
2
1
4
5
6
I2C_SCL
R819
10K
10K
R883
0
R881
0
R884
0
OPT
R882
0
OPT
Master PMIC/P-Gamma
2010. 10. 05
8
GP3 72" IOL
11
[Master PMIC Block]
Place Bottom
to prevent inrush current
Place Bottom
Place Bottom
0xEA
Place Bottom
[Master P-Gamma Block]
Place Bottom
0xE8
[Master GPM Block]
to prevent inrush current
Connect Pin 2 to Pin 3 :
I2C Slave
I2C Slave
Connect Pin 1 to Pin 2 :
I2C Master
I2C Master
I2C HUB
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