LG 40LX560H Service Manual page 43

B-LAN & tuner
TDJH-H301F
TU_GND_A
B_LAN
TU3001
TMMB-H005F
B_LAN
SIF C3003
1
+3.3V 0.1uF 16V
2
SCL
close to TUNER
3
SDA
4
IF_AGC
5
GND_1
6
CVBS
7
RESET
8
+1.8V
9
DIF_N
10
DIF_P
11
GND_2
12
+5V
13
JP2_P1
14
JP2_P4
15
J1_P2
16
J1_P3
17
J1_P4
18
J1_P5
19
PTS
20
b_com_PWCTRL
JP1_P3
21
MPI_DIN
JP1_P4
22
MPI_DOUT
JP1_P5
23
SPI_DOUT
JP1_P6
24
SPI_DIN
JP1_P7
25
SPI_CLOCK
JP1_P10
26
IR_bLAN
J2_P1
27
BEXT_MPI_DOUT
J2_P2
28
BEXT_MPI_DIN
J2_P3
29
J2_P4
30
BEXT_Game_Control_Latch
J2_P6
31
BEXT_IR_MODEM
32
10 Non_B_LAN R3002
SHIELD 10 Non_B_LAN R3003
10 Non_B_LAN R3004
b_LAN Game control JACK
POWER LINE
BEXT_5V
JK3000
MJ-623PT-6-S-SD
MPI_DOUT
1
BEXT_MPI_DOUT
MPI_DIN
2
BEXT_MPI_DIN
5V 3
4
NC
BEXT_Game_Control_Latch
GND
5
6
IR_OUT BEXT_IR_MODEM
7
THE THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SYMBOL MARK OF THE SCHEMETIC.
Copyright 2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
Non_B_LAN
0 R3017
0 R3018
Close to the tuner
close to TUNER
E_SPRING
3
GND T_TERMINAL1
6A
RxD -->L
B_TERMINAL1
7A
TxD--> R
R_SPRING
4
T_SPRING
5
B_TERMINAL2
7B
T_TERMINAL2
6B
+3.5V_ST_PTC
B_LAN
GND
JK3001
B_LAN
R3000
10K
BEXT_5V
L3002
+5V_ST
R3008
RJ12_MPI_DOUT_buffer
Non_B_LAN
RJ12_MPI_DIN_buffer
RJ12_IR_MPI_MODEM_buffer
b_LAN MPI pin3
power control
+13.2V change from 12V
12V_JIG
BLAN CHECK
JP3016
E
B_LAN
B_LAN
MMBT3906(NXP)
B
3.3K Q3001
R3040
C
MPI_5V or 12V
BEXT_5V
B_LAN
C3025
220pF
50V
B_LAN
C
B_LAN R3042
Q3000 B 3.3K
b_com_PWCTRL
MMBT3904(NXP)
E
MPI_5V or 12V (PIN3) Select Control from b-LAN
+3.3V_TU
R3035-*1
1.8K
Non_B_LAN
B_LAN
R3035 B_LAN
1.2K
R3037
1.2K
33 R3034
C3021 C3023
18pF 20pF
33 R3033
50V 50V
C3022
OPT
C3019
OPT 20pF
18pF
50V
50V
+3.3V_TU +3.3V_TU
close to the tuner pin, add,09029
B_LAN
R3026
C3014
B_LAN 100K
C3016
100pF R3025
0.1uF 100
50V
16V
C3020
0.1uF
16V
B_LAN
+1.8V_TU
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
C3010 C3011
Signal to Signal Width = 12mils
100pF 0.1uF
Ground Width >= 24mils
50V 16V
B_LAN B_LAN
IF_N_MSTAR
IF_P_MSTAR
+5V_BLAN_TU
B_LAN
OPT OPT
C3015 C3017 C3018
0.1uF
22uF 10uF
16V 16V 10V
b-LAN power
Vout=1.25*(1+R2/R1)+Iadj*R2
+3.3V_TU +1.8V_TU
B_LAN
L3003-*1
B_LAN_BEAD_OLD
IC3000 B_LAN_BEAD_NEW
L3003
AZ1117EH-ADJTRG1 MLB-201209-0120P-N2
CB2012PK501T
IN OUT
ADJ/GND
B_LAN B_LAN B_LAN B_LAN
C3000 150 R3019 ZD3000
R3005 0 2.5V
10uF R1
10V
300
C3006
R3007
B_LAN 10uF
10V
B_LAN
R3011
200
R2
B_LAN
1.3A
+5V_BLAN
+5V_BLAN_TU
B_LAN
200mA L3000
MLB-201209-0120P-N2
C3001 C3002 C3004 C3005
0.1uF
22uF 22uF 0.1uF
16V
10V 16V 16V
OPT OPT
OPT OPT
Tuner power
+3.3V_Normal
+3.3V_TU
Size change
L3001
MLB-201209-0120P-N2
60mA
C3012
C3009
22uF
C3007 C3013
0.1uF
10V
22uF 0.1uF
16V
10V 16V
R3037-*1
1.8K
Non_B_LAN
TU_SCL
TU_SDA
B_LAN
1K
IF_AGC_MAIN
R3036
C3024
B_LAN
should be guarded by ground
0.1uF
16V
R3036-*1
Non_B_LAN
100
Close to the tuner
TUNER_RESET
B-LAN POWER
5VST_JIG
BLAN CHECK
R3064
10K
B_LAN
R3061
47K
bLAN_POWER_MANAGE
B_LAN
MPI buffer
+3.5V_ST_PTC
Non_B_LAN
R3012
10K
MPI_DIN
C
B
Non_B_LAN
Q3004
E
R3015
Non_B_LAN
220
R3009
C
Non_B_LAN
0 B
Non_B_LAN
MPI_DOUT
Q3002
E
+3.5V_ST_PTC
R5136
33K
R5100
C 0
68K
R5125
B Q5020
IR 2SC3052
E
R5129
33K
L14_CA_COMMER
b_LAN
+3.3V_TU
B_LAN
R3076
470
B_LAN
R3077
82
TU_SIF
E
Q3005
B_LAN
B MMBT3906(NXP)
R3075
C
4.7K
+3.3V_TU
B_LAN B_LAN
R3052 R3060
220 220
TU_CVBS
E
B_LAN
R3049 B Q3003
MMBT3906(NXP)
1K
C
OPT
BLAN CHECK
+5V_ST +5V_BLAN
B_LAN
Q3010
PMV48XP
B_LAN
B_LAN
B_LAN C3034
C3028
R3071 C3032 R3074 1uF
0.1uF
10V 2.2K 10V
47K
16V G
1uF OPT
OPT
R3067
OPT
10K
Q3009
C
B_LAN
MMBT3904(NXP)
B
R3068
100K
E
OPT
Non_B_LAN
R3014
10K
RJ12_MPI_DIN_buffer
Non_B_LAN C3026
22K
220pF
R3013
Non_B_LAN
RJ12_MPI_DOUT_buffer
C3027
220pF
Non_B_LAN
B_LAN
R3010
IR_bLAN
0
Non_B_LAN
20 R3016
RJ12_IR_MPI_MODEM_buffer
Non_B_LAN
C
220pF
B Q5023
2SC3052 C3029
E
2014/08/23
130 commercial
LGE Internal Use Only