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LG 42LE8500 Service Manual page 38

Chassis : ld03e
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[LEVEL Shift Block]
VCC_LCM
(+3.3V)
R9108
100
GIP
C9102
R9109
OPT
3K
DISCHG
OPT
GIP
R9113
10K
GIP
A9
Y9
GVDD_ODD_I
1
21
THERMAL
A8
Y8
GVDD_EVEN_I
2
29
20
A7
Y7
3
19
GSP/GVST_I
IC9101
A6
Y6
4
18
GCLK6_I
MAX17119DS
A5
GIP
Y5
GCLK5_I
5
17
A4
DEV
Y4
6
16
GCLK4_I
A3
EAN60987201
Y3
GSC/GCLK3_I
7
15
GCLK2_I
GOE/GCLK1_I
C9101
VGH
0.22uF
R9105
R9110
(+25V)
22
22
50V
GIP
GIP
GIP
C9104
R9111
R9114
C9107
1uF
10
OPT
1uF
50V
GIP
OPT
GIP
50V
GIP
VGL
(-5V)
[P-GAMMA Block]
Slave Address : 0xE8h
(AO Pin - GND)
To reduce
Audible noise
1uF/50V(2012)
C9106
1uF
50V
MINI_LVDS
VCC_LCM
SDA3_3.3V
R9100
SDA
GMA6
(+3.3V)
1
15
THERMAL
33
A0
GMA5
2
14
21
IC9100
DVDD
GMA4
3
13
MAX9668ETP+
C9100
AGND_AMP
GMA3
4
12
0.1uF
MINI_LVDS
50V
VCOM
GMA2
5
11
VCOM
DEV
VCOM_FB0
C9103
C9105
0.1uF
0.1uF
50V
50V
For P-Gamma Data Download
P9100
12505WS-03A00
TCON_42_FHD
1%
R9102
1K
R9106
VCOMR
0
R9107
VCOML
VCOM
0
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.
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
VDD_ODD
VDD_EVEN
VST
CLK6
CLK5
CLK4
CLK3
CLK2
CLK1
R9115
R9116
10
10
GIP
GIP
VGH
(+25V)
VDD_LCM
(+16V)
[HVDD Block]
R9112
10
1/8W
VDD_LCM
PANEL_VCC
GMA13
(+16V)
(+12V)
GMA12
GMA7
GMA6
GMA4
10uF/25V(3216)
MINI_LVDS
C9108
C9109
VDD_LCM
10uF
10uF
GMA3
(+16V)
25V
25V
PGND_1
MINI_LVDS
VIN_1
VIN_2
R9117
EN
47K
C9110
OPT
R9118
10K
1uF
OPT
25V
R9196
24K
EN2
D9107
100V
MMSD4148T1G
PANEL_VCC
1
SCL3_3.3V
R9119
20K
2
SDA3_3.3V
R9120
3
7.5K
4
[POWER Block]
* Voltage Target
VDD_LCM =
16.25V
VGH
=
28.50V
VGL
=
-5.35V
D9100
VGH
MMSD4148T1G
(+25V)
EN2
100V
OPT
4.7uF/50V(3216)
R9132
C9116
0
C9117
MINI_LVDS
1uF
1uF
R9124
R9125
C9112
R9129
50V
50V
4.7uF
18K
18K
56K
1%
50V
TCON_42_FHD
R9130
R9133
R9134
10
10
220K
1%
GIP
GIP
TCON_42_FHD
Value should
be checked
VGH_FB
R9131
11K
1%
TCON_42_FHD
R9133-*1
R9134-*1
200
200
NON_GIP
NON_GIP
VGL
(-5V)
6.8uH/1.8A
HVDD
(6x6x2mm)
L9100
6.8uH
DEV
MINI_LVDS
R9121
R9123
0
1M
GIP
NON_GIP
R1
C9113
C9114
C9115
R9126
R9193
R9195
510K
22pF
22uF
10uF
6.2K
6.2K
TCON_42_FHD
50V
16V
16V
OPT
OPT
GND_2
1
12
DEV
GND_1
2
11
IC9102
FB
3
TPS62110RSAR
10
MINI_LVDS
AGND
4
9
R2
EAN60985901
R9127
R9128
150K
200K
TCON_42_FHD
TCON_42_FHD
Vo = 1.153*(1+R1/R2)
R9122
10
C9111
1uF
50V
MMSD4148T1G
R9156
R9165
C9134
150K
18K
OPT
1%
1%
TCON_42_FHD
OPT
C9135
R9168-*1
R9157
R9166
OPT
75K
15K
1%
1%
33K
TCON_42_FHD
TCON_42_FHD
NON_GIP
VDD_LCM
C9128-*1
(+16V)
C9136
470pF
50V
27pF 50V
NON_GIP
NON_GIP
R9146
33K
C9128
R9168
NON_GIP
1000pF
10K
50V
GIP
GIP
R9147-*1
R9147
VGH
0
2.7K
(+25V)
NON_GIP
GIP
VGH_M
R9152
0
(+25V)
NON_GIP
D9101
KDS226
THR
R9153
0
1
C9122
C
NON_GIP
DRVP
2
A
AC
GND2
0.47uF
3
25V
R9154
0 GIP
SRC
4
GON
R9150
0 GIP
5
IC9103
R9148
R9155
DRN
6
MAX17113ETL+
510 NON_GIP
510
NON_GIP
MODE
MINI_LVDS
VDD_LCM
7
C9125
68pF
NON_GIP
(+16V)
DLP
8
DEV
C9126 0.047uF
NON_GIP
FBP
9
VGH_FB
GPGND
10
EAN60924401
R9148-*1
0
GIP
R9158
R9167
0
0
R9155-*1
GIP
NON_GIP
0
GIP
C9123
VCC_LCM
1uF
C9137
(+3.3V)
10V
0.1uF
REF
50V
GIP
TCON_42_FHD
R9135
C9118
3.6K
10uF
R9144
1%
OPT
16V
C9124
R9149
R9151
27K
1uF
0
0
50V
VGL_FB
D9102
KDS226
R9145
1%
C9127
C
150K
TCON_42_FHD
AC
A
1uF
50V
Signal Name Change
VCC_LCM
(+3.3V)
R9143
3.3K
GIP
R9159
R9136
0
RXA3-
FLK
RXD3-
10 NON_GIP
C9119
15pF
50V
R9160
NON_GIP
0
RXD3+
NON_GIP
GSP_R
VCC_LCM
VGH
(+3.3V)
(+25V)
R9139
0
VGI_P
GIP
R9161
0
RXDCK+
VGL
(-5V)
R9140
0
VGI_N
GIP
R9162
0
RXDCK-
VGL
(-5V)
R9141
0
R9142
DISCHG
VGL_I
0
R9163
OPT
0
GVDD_ODD
GIP
R9137
RXD4-
POL
0
R9164
C9120
0
15pF
GVDD_EVEN
GIP
50V
R9138
RXD4+
SOE
0
C9121
15pF
50V
D9103
VDD_LCM
EN2
(+16V)
100V
CHECK Value!!
To reduce
C9138
Audible noise
0.1uF
50V
To reduce
C9153
C9150
R9182
Audible noise
C9142
C9139
100uF
1uF
1uF
9.1K
25V
C9141
50V
50V
1uF 50V
47uF
1/8W
25V
L9102
D9106
MBRA340T3G
22UH
D9104
MBRA340T3G
C9148
2.8A
22uF
25V
C9145-*1
R9169
C9145
560pF
2.2
1000pF
50V
50V
NON_GIP
GIP
PANEL_VCC
C9143
(+12V)
0.1uF
PGND
30
50V
EN2
29
EN2
R9180
VL
28
360
27
DEL2
EN1
26
PANEL_VCC
25
FSEL
(+12V)
R9171
R9194
VIN
24
360
23
IN2
0
OPT
IN2
22
21
OUT
C9147
R9173
C9152
1uF
C9155
C9162
C9144
1uF
50V
1K
22uF
22uF
0.1uF
10V
25V
25V
50V
R9174
OPT
VCC_LCM
(+3.3V)
L9101
22UH
C9140
0.1uF
2.8A
50V
C9151
C9146
C9149
D9105
C9154
R9181
0.1uF
MBRA340T3G
150pF
22uF
OPT
40V
50V
5.1K
50V
10V
C9137-*1
2200pF
50V
NON_GIP
R9170
DPM
EN2
10
R9172
1K
R9175
0
GSP/GVST_I
GCLK2
GCLK2_I
GIP
C9129
C9156
15pF
15pF
50V
50V
NON_GIP
OPT
R9176
0
GCLK4
GCLK4_I
GIP
C9157
15pF
50V
OPT
R9197
3.3K
NON_GIP
R9177
0
RXA4-
GCLK5_I
GOE/GCLK1_I
GIP
C9158
15pF
C9130
50V
15pF
OPT
50V
NON_GIP
R9178
0
GSC/GCLK3_I
RXA4+
GCLK6_I
C9131
C9159
GIP
15pF
15pF
50V
50V
NON_GIP
OPT
R9179
DPM_A
GVDD_ODD_I
DPM
0
C9132
C9160
15pF
15pF
50V
50V
OPT
GVDD_EVEN_I
C9133
15pF
50V
OPT
COMMON
09/09/10
T-Con (NO L.D.)
91
LGE Internal Use Only

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