LG 42LA6900 (CHASSIS:LC33B) Service Manual ▷ View 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.
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.
IC6801
MAX3232CDR
EAN41348201
JAPAN_HOTEL
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
+3.5V_ST
JK6800
PEJ034-01
JAPAN_HOTEL
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
3
E_SPRING
C6810
0.1uF
JAPAN_HOTEL
JP6801
C6813
0.1uF
0.1uF
JAPAN_HOTEL
R6821
100
100
JAPAN_HOTEL
SOC_RX
ZD6803
20V
ADUC 20S 02 010L
OPT
C6809
0.1uF
JAPAN_HOTEL
JP6800
C6812
0.33uF
OPT
SOC_TX
ZD6802
ADUC 20S 02 010L
20V
ADUC 20S 02 010L
20V
OPT
C6811
0.1uF
JAPAN_HOTEL
C6808
0.1uF
JAPAN_HOTEL
R6820
100
100
JAPAN_HOTEL
RS-232C Control INTERFACE
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.
A_GND
C6905
10uF
25V
10uF
25V
LNB
R6900
2.2K
1W
2.2K
1W
LNB
A_GND
L6900
15uH
SP-7850_15
LNB
R6904
0
I2C_SDA4
C6907
10uF
25V
10uF
25V
LNB
R6901
33
LNB
D6901
30V
MBR230LSFT1G
LNB
C6910
0.1uF
50V
0.1uF
50V
LNB
C6911
0.22uF
LNB
+12V
D6900
LNB
LNB_OUT
D6903-*1
40V
LNB_SX34
D6902
30V
LNB
C6903
0.01uF
50V
LNB
R6902
33
LNB
C6906
10uF
25V
10uF
25V
LNB
A_GND
D6904-*1
40V
LNB_SX34
A_GND
A_GND
R6903
39K
39K
1/16W
1%
1%
LNB
A_GND
D6903
40V
LNB_SMAB34
D6904
40V
LNB_SMAB34
LNB_TX
C6904
0.1uF
50V
0.1uF
50V
LNB
C6908
0.1uF
LNB
C6909
10uF
25V
10uF
25V
LNB
C6912
0.1uF
LNB
C6902
0.22uF
25V
LNB
I2C_SCL4
C6900
18pF
18pF
LNB
C6901
33pF
33pF
LNB
IC6900
A8303SESTR-T
LNB
1
VCP
3
NC_1
7
SCL
9
ADD
10
TONECTRL
11
TCAP
12
ISET
13
VREG
14
GND
15
VIN
16
LX
17
GNDLX
18
NC_2
19
NC_3
20
BOOST
5
TDO
8
SDA
6
IRQ
4
TDI
2
LNB
21
[EP]GND
69
LNB
2012.03.08
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
DVB-S2 LNB Part Allegro
Surge protectioin
close to VIN pin(#15)
Max 1.3A
close to Boost pin(#1)
(Option:LNB)
2A
3.5A
Close to Tuner
Caution!! need isolated GND
3A
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.
R7107
33
LGD_T-Con_Scanning
R7106
33
CP_BOX
TXB4N
TXA1P
TXA1N
TXB3P
2D/3D_CTL
TXC2N
TXA2N
TXCCLKP
TXC1P
+3.3V_NORMAL
OPC_EN
TXD4P
R7103
10K
10K
BIT_SEL_LOW
TXB4P
R7105
33
CP_BOX
TXBCLKP
R7108
33
OPC_EN
2D/3D_CTL
TXC4N
TXA0N
TXB1N
TXB2N
TXC4P
TXACLKN
TXC1N
TXC0P
TXD0N
TXC0N
TXA3N
C7102
0.1uF
50V
0.1uF
50V
OPT
PWM_DIM1
I2C_SDA1
R7104
33
AUO_2D/3D_CTRL
TXB3N
TXA0P
TXC3N
TXB2P
R7101
3.3K
LVDS_SEL_HIGH
P7101
FI-RE41S-HF-J-R1500
LVDS_41PIN
1
NC
2
NC
3
NC
4
NC
5
NC
6
NC
7
NC
8
NC
9
GND
10
RC0N
11
RC0P
12
RC1N
13
RC1P
14
RC2N
15
RC2P
16
GND
17
RCCLKN
18
RCCLKP
19
GND
20
RC3N
21
RC3P
22
RC4N
23
RC4P
24
GND
25
GND
26
RD0N
27
RD0P
28
RD1N
29
RD1P
30
RD2N
31
RD2P
32
GND
33
RDCLKN
34
RDCLKP
35
GND
36
RD3N
37
RD3P
38
RD4N
39
RD4P
40
GND
41
GND
42
GND
TXB1P
R7102
10K
LVDS_SEL_LOW
TXD3P
TXC2P
TXB0P
TXCCLKN
TXD1N
TXDCLKP
TXC3P
C7100
10uF
16V
10uF
16V
OPT
TXDCLKN
TXBCLKN
TXA4P
R7100
33
LGD_2D/3D_CTRL
TXD2N
TXA3P
L7100
BLM18SG121TN1D
LVDS_51PIN
PANEL_VCC
TXD2P
TXA2P
TXD3N
TXD4N
I2C_SCL1
TXA4N
TXB0N
TXACLKP
TXD1P
P7100
FI-RE51S-HF-J-R1500
LVDS_51PIN
1
NC
2
NC
3
NC
4
NC
5
NC
6
AUO_65_MIRROR
7
LVDS_SEL
8
NC
9
NC
10
L/DIM_ENABLE
11
GND
12
RA0N
13
RA0P
14
RA1N
15
RA1P
16
RA2N
17
RA2P
18
GND
19
RACLKN
20
RACLKP
21
GND
22
RA3N
23
RA3P
24
RA4N
25
RA4P
26
GND
27
BIT_SEL
28
RB0N
29
RB0P
30
RB1N
31
RB1P
32
RB2N
33
RB2P
34
GND
35
RBCLKN
36
RBCLKP
37
GND
38
RB3N
39
RB3P
40
RB4N
41
RB4P
42
GND
43
GND
44
GND
45
GND
46
GND
47
NC
48
VLCD
49
VLCD
50
VLCD
51
VLCD
52
GND
C7101
1000pF
50V
1000pF
50V
OPT
TXD0P
R7109
0
OPT
R7110
33
AUO_L/D_EN
71
LVDS_HIGH_MID
2011.08.11
BIT_SEL
LVDS
LVDS_SEL
[41Pin LVDS OUTPUT Connector]
[51Pin LVDS OUTPUT Connector]
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.
L/DIM0_VS_PWR
L/DIM0_SCLK_PWR
R7601
10K
10K
L/DIM_OUT_8P
P7600
12507WR-08L
L/DIM_OUT_8P
1
2
3
4
5
6
7
8
9
L/DIM0_MOSI_PWR
R7602
33
33
L/DIM_OUT_8P
R7603
33
33
L/DIM_OUT_8P
I2C_SCL1
I2C_SDA1
76
LOCAL DIMMING
2011.12.13
[To LED DRIVER]
LOCAL DIMMING
Click on the first or last page to see other 42LA6900 (CHASSIS:LC33B) service manuals if exist.