Read LG 55LS675H (CHASSIS:LA2AG) Service Manual 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.
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.
C3030
22uF
OPT
+12V_C_MPI
MPI_DOUT
020:M17;022:AM18
D3010
5.6V
OPT
RJ12_IR_MPI_MODEM_buffer
C3011
0.1uF
16V
0.1uF
16V
IF_P_MSTAR
bLAN_POWER_MANAGE
020:AG4;022:P17
R3006
0
B-LAN
R3035-*1
1K
TU_IIC_NON_ATSC_SANYO
+5V_ST_bLAN
R3037
1.2K
1.2K
TU_IIC_ATSC_SANYO
R3013
0
B-LAN
C3003
0.1uF
16V
D3003
5.6V
OPT
R3059
470
470
RJ12_MPI
R3053
220
220
RJ12_MPI
R3011
0
B-LAN
R3016
0
RJ12_MPI
RJ12_IR_MPI_MODEM_buffer
R3040
3.3K
C3031
220pF
RJ12_MPI
R3024
10K
RJ12_MPI
R3034
TU_I2C_NON_FILTER
33
R3066
22K
OPT
GND
C3023
20pF
50V
20pF
50V
TU_I2C_FILTER
GND
+12V_C
R3041
200
1W
B-LAN
R3056
1M
RJ12_MPI
C3016
0.1uF
16V
16V
BEXT_IR_MODEM
020:R5
R3025
100
100
BEXT_MPI_OUT
020:R8
BEXT_MPI_DIN
020:N15
R3019
0
B-LAN
C3015
22uF
16V
16V
OPT
R3037-*1
1K
TU_IIC_NON_ATSC_SANYO
R3050
22K
RJ12_MPI
L3002
MLB-201209-0120P-N2
B-LAN
C3029
0.1uF
16V
0.1uF
16V
B-LAN
+5V_BLAN
R3001
0
C3019-*1
20pF
50V
20pF
50V
TU_I2C_FILTER
R3012
0
B-LAN
C3013
0.1uF
16V
BEXT_MPI_DIN
020:R7
BEXT_Game_Control_Latch
020:R6
SPI_CLOCK
022:AM23
R3018
0
RJ12_MPI
R3068
100K
OPT
OPT
R3002
0
D3008
5.6V
OPT
SPI_DIN
022:AM22
P3000
YFDW254-06S
OPT
4
3
2
6
1
5
RJ12_MPI_DOUT_buffer
R3054
10K
RJ12_MPI
C3028
0.1uF
16V
0.1uF
16V
B-LAN
R3008
0
B-LAN
+5V_ST_bLAN
bLAN_POWER_MANAGE
020:AG8;022:P17
+5V_ST
+3.3V_TU
BEXT_5V
R3044
470
RJ12_MPI
SPI_DOUT
022:AM22
RJ12_MPI_DIN_buffer
C3010
100pF
50V
100pF
50V
Q3010
AO3407AB-LAN
G
D
S
R3029
0
0
B-LAN
MPI_DIN
020:AB21;022:AI19
+12V_C_MPI
R3042
3.3K
3.3K
1/10W
5%
5%
B-LAN
BEXT_IR_MODEM
020:N14
RJ12_MPI_DIN_buffer
R3047
10K
RJ12_MPI
R3027
0
0
B-LAN
R3033-*1
TU_I2C_FILTER
COIL
R3033
TU_I2C_NON_FILTER
33
R3015
0
RJ12_MPI
+5V_ST
R3022
0
B-LAN
C3018
10uF
10V
10V
OPT
R3038
10K
1/10W
5%
B-LAN
BEXT_MPI_OUT
020:N15
R3035
1.2K
1.2K
TU_IIC_ATSC_SANYO
IF_N_MSTAR
TUNER_RESET
C3022
20pF
50V
20pF
50V
TU_I2C_FILTER
R3051
470K
RJ12_MPI
b_com_PWCTRL
020:AB5
R3020
0
B-LAN
C3019
18pF
50V
18pF
50V
TU_I2C_NON_FILTER
C3024
0.1uF
16V
0.1uF
16V
R3021
0
B-LAN
C3021
18pF
50V
18pF
50V
TU_I2C_NON_FILTER
TU_SDA
D3005
5.6V
OPT
D3004
5.6V
OPT
R3069
3.3K
RJ12_MPI
D3007
5.6V
OPT
JP3016
C3026
220pF
RJ12_MPI
MPI_DOUT
020:AB18;022:AM18
R3036
1K
1K
C3020
0.1uF
16V
IF_AGC_MAIN
L3003
MLB-201209-0120P-N2
B-LAN
R3010
0
B-LAN
RJ12_IR_MPI_MODEM
022:AN14
C3021-*1
20pF
50V
20pF
50V
TU_I2C_FILTER
+5V_ST
R3014 0
B-LAN
D3002
5.6V
OPT
R3003
0
+5V_BLAN_TU
TU_SCL
C3032
1uF
10V
OPT
BEXT_5V
R3057
1K
RJ12_MPI
R3045
4.7K
bLAN_IR_IN_MODEM
022:AN12
+3.3V_Normal
R3072
220
RJ12_MPI
R3070
47K
B-LAN
D3009
5.6V
OPT
R3000
0
C3012
22uF
10V
22uF
10V
+3.3V_TU
GND
BEXT_Game_Control_Latch
020:N14
R3039
200
1W
B-LAN
C3027
220pF
220pF
RJ12_MPI
C3009
0.1uF
16V
16V
+3.3V_TU
+5V_ST
R3034-*1
TU_I2C_FILTER
COIL
BEXT_5V
C3034
1uF
10V
B-LAN
MPI_DIN
020:M17;022:AI19
R3017
0
RJ12_MPI
C3017
0.1uF
16V
0.1uF
16V
B-LAN
D3006
30V
OPT
+3.3V_TU
C3007
22uF
10V
22uF
10V
b_com_PWCTRL
020:M18
RJ12_MPI_DOUT_buffer
R3023
0
B-LAN
R3009
0
B-LAN
R3043
4.7K
RJ12_MPI
R3028
0
0
B-LAN
Q3011
AO3407AB-LAN
G
D
S
C3014
100pF
50V
100pF
50V
+1.2V/+1.8V_TU
L3001
MLB-201209-0120P-N2
R3026
100K
R3005
1
1
1/10W
C3000
0.1uF
16V
R3004
0
R3007
150
OPT
OPT
+1.2V/+1.8V_TU
C3008
10uF
10V
10uF
10V
+3.3V_TU
C3006
0.1uF
16V
R3063
22K
RJ12_MPI
R3071
47K
B-LAN
R3058
47K
47K
B-LAN
R3061
47K
B-LAN
R3065 47K
OPT
R3062
10K
B-LAN
R3064
10K
B-LAN
R3073
2.2K
2.2K
OPT
R3074
2.2K
2.2K
OPT
R3067
10K
OPT
JK3001
PEJ027-01
BLAN_Sn
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
JK3001-*1
PEJ027-04
BLAN_Au
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
R3031
0
0
B-LAN
R3032
0
0
B-LAN
R3030
0
0
B-LAN
JK3000
MJ-623PT-6-S-SD
B-LAN
1
2
3
4
5
6
7
JK3000-*1
MJ-623PT-6-S-SD
RJ12_MPI
1
2
3
4
5
6
7
IC3000
AZ1117BH-1.8TRE1
1
ADJ/GND
2
OUT
3
IN
JK3002
KCN-BT-0-0056
1
2
3
4
L3000
MLB-201209-0120P-N2
+5V_BLAN
+5V_BLAN_TU
C3005
0.1uF
16V
0.1uF
16V
C3002
0.1uF
16V
16V
C3004
22uF
16V
22uF
16V
C3001
22uF
10V
22uF
10V
R3060
220
TU_BUFFER
+3.3V_TU
R3048
0
TU_BUFFER
R3052
220
TU_BUFFER
R3049
1K
OPT
R3076
470
TU_BUFFER
+3.3V_TU
TU_CVBS
R3077
82
82
R3055
0
TU_NON_BUFFER
R3046
0
TU_NON_BUFFER
TU_SIF
R3075
4.7K
4.7K
TU_BUFFER
Q3008
MMBT3904(NXP)
B-LAN
E
B
C
Q3009
MMBT3904(NXP)
B-LAN
E
B
C
Q3003
MMBT3906(NXP)
TU_BUFFER
E
B
C
Q3005
MMBT3906(NXP)
E
B
C
C3033
1uF
25V
B-LAN
Q3006
MMBT3906(NXP)
RJ12_MPI
E
B
C
Q3000
MMBT3904(NXP)
B-LAN
E
B
C
Q3002
RJ12_MPI
E
B
C
Q3004
RJ12_MPI
E
B
C
Q3007
MMBT3904(NXP)
RJ12_MPI
E
B
C
Q3001
MMBT3906(NXP)
B-LAN
E
B
C
C3025
220pF
50V
220pF
50V
B-LAN
TU3001
TMMB-H002F
Tuner
1
SIF
2
+3.3V
3
SCL
4
SDA
5
IF_AGC
6
GND_1
7
CVBS
8
RESET
9
+1.8V
10
DIF_N
11
DIF_P
12
GND_2
13
+5V
14
JP2_P1
15
JP2_P4
16
J1_P2
17
J1_P3
18
J1_P4
19
J1_P5
20
PTS
21
JP1_P3
22
JP1_P4
23
JP1_P5
24
JP1_P6
25
JP1_P7
26
JP1_P10
27
J2_P1
28
J2_P2
29
J2_P3
30
J2_P4
31
J2_P6
32
SHIELD
20
Size change
b_LAN Game control JACK
60mA
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
Ground Width >= 24mils
2. No via on both of them
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
Ground Width >= 24mils
NC
BLAN CHECK
RxD -->L
Close to the tuner
should be guarded by ground
BLAN CHECK
MPI_DOUT
IR_OUT
MPI_5V or 12V
Tuner & b-LAN power
B-LAN & tuner
GND
12V_JIG
POWER LINE
MPI buffer
TxD--> R
close to TUNER
close to TUNER
5V
b_LAN MPI pin3
BLAN CHECK
B-LAN POWER
MPI_5V or 12V (PIN3) Select Control from b-LAN
MPI_DIN
Tuner RF jack
power control
BLAN CHECK
B-lan & Tuner
Add,0929
5VST_JIG
5VST_JIG
add,0929
Can tuner ready
37LT670H-UA
LA1EY
20111008
location movement,0929
Size change
200mA
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