LG 49LF640 Series, Service Manual

Page: 53 / 92

THERMAL
THERMAL
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
VCOM_L_BOT
C7742
1uF
10V
VGL
VCOM_L_FB
CLK5
CLK4
GCLK_SOC
C7713
10uF
25V
TXB2P/TX3P
GMA7_9
VCOM_TOP
TXBCLKN/TX2N
R7751
30K
1/16W
R7759
0
1/16W
R7707
0
EPI_32inch
C7723
10uF
25V
TXB3P/TX1P
GMA15
R7767
0
OPT
CLK5
PVCOM
C7756
1uF
10V
OPT
GMA10
C7746
1uF 25V
R7708
0
EPI_NON_32inch
L7703
NR6020T6R8NC
6.8uH
REVERSE
VCOM_L_FB
VCOM_BOT
CLK1
VCOM_FB_PANEL
R7761
10K
D7704
100V
1N4148W
H_VDD
R7722
120K
1%
GIP_RST
CLK2
CLK5
C7714
10uF
25V
EO
Z_OUT
CLK3
TXDCLKN/TX14N
VCOM_TOP
GCLK
D7703
100V
1N4148W
CLK1
GMA7_9
C7733
10uF
10V
+3.3V_NORMAL
R7718
9.1K
EPI_LOCK8/6_SOURCE
RE
GMA4_1
R7728 100K
1/16W 5%
REVERSE
R7766
0
EPI_NON_32inch
GMA9
GMA7
GMA1
VGH
R7714
0
OPT
L7702
22uH
C7747
1uF 10V
GMA1
VCOM_BOT
C7705
68uF
35V
VCOM_FB2
C7710
10uF
10V
GMA18
R7701
10K
1/16W
VDD
CLK3
C7722
4700pF
50V
OPT
VCORE
R7760
0
1/16W
VCC18
R7709
0
EPI_NON_32inch
VGH_ODD
VST
TXBCLKP/TX2P
R7725
0
EPI_V14(32)_V12_V13
VCOM_R_BOT
VCOM_FB_PANEL
TXB2N/TX3N
CTRLN
R7727 100K
1/16W 5%
R7771
0
1/16W
EPI_NON_32inch
R7749
1K
OPT
SWN
VCOM_R_BOT
R7737 4.7
OPT
C7731
0.1uF
16V
MCLK
GMA5
GMA9
GMA14
CLK4
VCOM_TOP
TXDCLKP/TX14P
VL
VCOM_FB2
TXD4P/TX12P
VCC18
GMA7
VGH
C7748
1uF 25V
L7704
22uH
CLK2
VCOM_R_FB
CLK4
VCC18
H_VDD
(+8V)
VCC18
VCOM_FB1
VGH_EVEN
GMA18
MCLK_SOC
GMA18
VCOM_L_BOT
CLK1
GMA10
R7720
47K
GMA12_10
GCLK
VCORE
C7732
1uF
10V
OPT
PANEL_VCC
C7754
0.1uF
50V
R7739
1.5K
1/16W
5%
VGH_EVEN
VCOM_L_BOT
GMA15_18
VCC18
EPI_CTL
R7735
0
EPI_V14
TH7700
47k-ohm
R7744
20K
1/10W
R7716
0
OPT
TXD3N/TX13N
TXB4P/TX0P
CLK6
R7713
2.2
1/16W
OPT
EPI_LOCK4/3
VCOM_FB1
R7733
0
EPI_V14(32)_V12_V13
CTRLN
GST
R7723
0
EPI_V12_V13
C7726
470pF
50V
OPT
TXD2P/TX15P
CLK3
C7729
470pF
50V
OPT
GMA14
C7755
1uF
50V
CLK5
EO_SOC
VCOM_L_FB
VCOM_FB_PANEL
GMA9
VST
VDD
(+16V)
TXB3N/TX1N
VGH
R7729
2.7K
GMA12_10
GIP_RST
R7736 4.7
OPT
R7715
0
EPI_V12_V13
TCOMP
C7737
0.1uF
50V
VGH
TXD3P/TX13P R7712
0
OPT
VCOM_R_FB
GMA4
R7730
0
EPI_V14(32)_V12_V13
VCORE
C7760
1uF
25V
EPI_NON_32inch
VGH_ODD
R7711
0
EPI_32inch
C7711
10uF
10V
D7706
100V
1N4148W
R7706
47
1/16W
C7757
1uF
50V
VCOM_R_BOT
C7730
1uF
10V
OPT
VCOM_R_BOT
R7724
0
EPI_V14(32)_V12_V13
R7719
0
EPI_NON_32inch
VCC18
GMA12
VCOM_FB1
C7734
0.1uF
50V
Z_OUT
R7702
0
EPI_32inch
GMA4
CTRLP
R7710
0
EPI_NON_32inch
R7703
47
1/16W
SWP
Q7700
MMBT3904(NXP)
E
B
C
COMP
GMA12
C7736
1000pF
50V
VDD
GMA7
Q7701
MMBT3906(NXP)
E
B
C
VCOM_BOT
TXB4N/TX0N
CLK2
R7705 47
1/16W
VDD
(+16V)
PANEL_VCC
GST
VGL
R7741
1K
CLK3
CLK1
TXD4N/TX12N
C7715
10uF
16V
SWP
SS
CLK6
C7725
2200pF
50V
OPT
CLK2
C7700
0.01uF
50V
I2C_SCL2
GMA15
C7706
68uF
35V
C7712
1uF
10V
VGL
CLK6
R7704
47
1/16W
GMA15_18
VGH_ODD
R7721
0
EPI_NON_32inch
+1.1V_VDD
GMA5
R7774
1K
EPI_LOCK8/6_SOURCE
GIP_RST
GMA15
I2C_SDA2
GST_SOC
PVCOM
R7732
0
EPI_V14
VCOM_TOP
GMA4_1
R7726
0
EPI_V14
SS
C7724
1uF
25V
D7705
100V
1N4148W
R7748
1K
GMA1
Z_OUT
COMP
VGL
VST
TCOMP
GMA14
R7750
20K
1/10W
GMA10
CTRLP
VGH_EVEN
C7719
15pF
50V
H_VDD
(+8V)
VCOM_R_FB
RE
VL
GMA12
C7703
0.01uF
50V
EPI_LOCK8/6
GMA4
C7720
15pF
50V
R7700
2K
1/16W
VDD
R7755
33
VCOM_BOT
EPI_LOCK4/3
CLK4
CLK6
MCLK
R7731
0
EPI_V14
VCOM_FB2
SWN
C7745
1uF 10V
R7734
0
EPI_V14(32)_V12_V13
C7718
15pF
50V
EO
C7717
15pF
50V
GMA5
R7717
22K
TXD2N/TX15N
C7707
560pF
50V
C7708
560pF
50V C7709
560pF
50V
C7704
560pF
50V
C7721
560pF
50V
C7716
560pF
50V
IC7703
TPS65175B
1
REVERSE
2
GCLK
3
MCLK
4
GST
5
E/O
6
GND
7
VGL
8
SWN
9
CTRLN
10
RST
11
OUTB
12
SWB
13
AGND
14
PVINB
15
AVIN
16
PVINH
17
SWH
18
OUTH
19
PGNDH
20
SCL
21
SDA
22
VL
23
TCOMP
24
PGND
25
SW
26
NC_1
27
SWI
28
SWO
29
SS
30
COMP
31
GMA1
32
GMA2
33
GMA3
34
GMA4
35
GMA5
36
GMA6
37
VGND
38
VCOM_DAC
39
VCOM
40
VCOMFB
41
CTRLP
42
SWP
43
VGH
44
VGH_E/O
45
RESET
46
VST
47
EVEN
48
ODD
49
NC_2
50
CLK6
51
CLK5
52
CLK4
53
CLK3
54
CLK2
55
CKL1
56
RE
57
[EP]AGND
AR7700
33
1/16W
P7703
FL11S050HA1
1
GMA1
2
NC
3
GMA4
4
GMA5
5
GMA7
6
GMA9
7
GMA10
8
GMA12
9
GMA14
10
GMA15
11
NC
12
GMA18
13
GND
14
LOCK_O
15
LOCK_I
16
VCC12
17
VCC18
18
GND
19
EPI8-
20
EPI8+
21
GND
22
EPI7-
23
EPI7+
24
GND
25
EPI6-
26
EPI6+
27
GND
28
EPI5-
29
EPI5+
30
GND
31
H_VDD
32
VDD
33
VDD
34
GND
35
VCOM_R_TOP
36
VCOM_FB(Z_OUT)
37
VCOM_R_BOT
38
NC(GIP_RST)
39
VST
40
VSS
41
VGH_EVEN
42
VGH_ODD
43
VGH
44
CLK6
45
CLK5
46
CLK4
47
CLK3
48
CLK2
49
CLK1
50
NC
51
P7702
FL11S050HA1
1
NC
2
CLK1
3
CLK2
4
CLK3
5
CLK4
6
CLK5
7
CLK6
8
VGH
9
VGH_ODD
10
VGH_EVEN
11
VSS
12
VST
13
NC(GIP_RST)
14
VCOM_L_BOT
15
VCOM_FB(Z_OUT)
16
VCOM_L_TOP
17
GND
18
VDD
19
VDD
20
H_VDD
21
GND
22
EPI4-
23
EPI4+
24
GND
25
EPI3-
26
EPI3+
27
GND
28
EPI2-
29
EPI2+
30
GND
31
EPI1-
32
EPI1+
33
GND
34
VCC18
35
VCC12
36
LOCK_I
37
LOCK_O
38
GND
39
GMA18
40
NC
41
GMA15
42
GMA14
43
GMA12
44
GMA10
45
GMA9
46
GMA7
47
GMA5
48
GMA4
49
NC
50
GMA1
51
IC7702
RT9148GJ5
EPI_NON_32inch
3 VIN+
2 VS-
4 VIN-
1 VOUT 5 VS+
R7770
1K
EPI_NON_32inch
R7772
30K 5%
EPI_NON_32inch
Q7702
AO3438
G
D S
C7701
0.1uF
16V
C7702
0.1uF
16V
C7727
0.1uF
16V
C7728
0.1uF
16V
IC7703-*1
SW5084B
PMIC_SIW
1
REVERSE
2
GCLK
3
MCLK
4
GST
5
E/O
6
GND
7
VGL
8
SWN
9
CTRLN
10
RST
11
OUT1
12
SWB1
13
AGND
14
PVINB1
15
AVIN
16
PVINB3
17
SWB3
18
OUT3
19
PGND3
20
SCL
21
SDA
22
VL
23
TCOMP
24
PGND
25
SW_1
26
SW_2
27
SWI
28
SWO
29
SS
30
COMP
31
GMA_P1
32
GMA_P2
33
GMA_P3
34
GMA_N4
35
GMA_N5
36
GMA_N6
37
GGND
38
VCOM
39
VCOMDAC
40
VCOMFB
41
CTRLP
42
SWP
43
VGH
44
VGH_E/O
45
RESET
46
VST
47
EVEN
48
ODD
49
NC
50
CLK6
51
CLK5
52
CLK4
53
CLK3
54
CLK2
55
CLK1
56
RE
57
[EP]
C7736-*1
820pF
50V
PMIC_SIW
R7717-*1
68K
PMIC_SIW
C7740
68pF
50V
PMIC_SIW
D7701
40V
SX34
D7700
40V
SX34
T-Con 77
MID_LG1311
2013.04.03
R7707
R7710
INSTEAD OF AMCC0208
V14 32INCH
NC
30Kohm R7772
NC
NC
0 ohm
R7771
0 ohm
0 ohm
R7770
31
NC
R7714
1kohm
0 ohm
NC
FROM SOC
IC7702
VCOML_FB
R7770
R7711
R7766
R7710
USE
NC
NC
< VCOM OPTION TABLE >
PAGE 29
0 ohm
NC
NC
USE
L7706
0 ohm
R7712
FROM SOC
R7721
R7772
R7772 NC
C7760
R7719
0 ohm
EXT.OP AMP USE
FROM SOC
0 ohm
R7716
6-Lane case
29
USE
L7706
EXT.OP AMP NOT USE
NC
R7702 0 ohm
R7767
0 ohm
0 ohm
0 ohm
R7702
** 32INCH OPTION **
** 42/47/55INCH OPTION **
R7709
EPI 8-Lane (LEFT)
R7716
0 ohm
R7771
0 ohm
V14-LGD PANEL
R7714
R7770
0 ohm
C7760
L7706
EXT.OP AMP USE
For EMI
USE
30Kohm
VCOMR_FB
FROM SOC
IC7702
NC
<T-CON POWER BLOCK>
INSTEAD OF AMCC0209
6-Lane case
V14 42~55INCH
R7709
0 ohm
USE
EPI 8-Lane (RIGHT)
IC7702
R7708
0 ohm
R7767
NC
V14_32INCH OPTION
R7770
NC
0 ohm
NC
R7766
R7707
R7772
R7712
NC
1Kohm
C7760
IC7702
C7760
R7711
0 ohm
EXT.OP AMP NOT USE
R7721
0 ohm
0 ohm
R7719
For EMI
R7708
0 ohm
USE
R7771
L7706
R7771
0 ohm
0 ohm
Improve the Vertical dot noise
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Only for training and service purposes
LGE Internal Use Only