LG Electronics 29LN45**-Z* GLOBAL tuner block except T2/S2

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.
GLOBAL TUNER 26 12
R3741-*1
1K
(ASIA EU)TU_IIC_NON_ATSC_1K
FE_TS_CLK
TU_GND_A
IF_AGC_MAIN
R3740-*3
2.2K
(BR)TU_IIC_2.2K
TUNER_RESET
TU_GND_A
+1.23V_TUNER
FE_TS_DATA[0]
IF_AGC_SEL
TU_SDA
TU_GND_A
IF_N_MSTAR
FE_TS_SYNC
TU_GND_A
TU_SCL
LNA2_CTL
+3.3V_TU
TU3704-*1
TDSN-T601F
(OPT)SI2176_TW_2INPUT_H
1RF_S/W_CTL
2RESET_TUNER
3SCL
4SDA
5+B1[3.3V]
6SIF
7+B2[1.8V]
8CVBS
9IF_AGC
10 DIF[P]
11 DIF[N]
12 NC_1
13 NC_2
14 NC_3
15 GND
16 NC_4
17 NC_5
18 NC_6
19 NC_7
20 NC_8
21 NC_9
22 NC_10
23 NC_11
24 NC_12
25 NC_13
26 NC_14
27 NC_15
28
SHIELD
A1 A1 B1
B1
LNA_CTRL_1
LNA_CTRL_2
FE_TS_VAL_ERR
+3.3V_TU
+3.3V_TU
+3.3V_TUNER
+1.8V_TUNER
R3741-*3
2.2K
(BR)TU_IIC_2.2K
BR_RESET_DEMOD
RF_SWITCH_CTL
IF_P_MSTAR
R3740-*1
1K
(ASIA EU)TU_IIC_NON_ATSC_1K
+3.3V_TU
R3801-1*
47
(BR)FULL_NIM_D_DEMODE_47
R3804-*1
47
(BR)FULL_NIM_D_DEMODE_47
R3803-*1
47
(BR)FULL_NIM_D_DEMODE_47
R3802-1*
47
(BR)FULL_NIM_D_DEMODE_47
TU_CVBS
+3.3V_TU
TU_SIF
+3.3V_TU
C3707
100pF
50V
C3703
0.1uF
16V
OPT
R3741
1.8K
(KR/US)TU_IIC_ATSC_1.8K
C3754
0.1uF
16V
(BR)FULL_NIM
R3736
NON BR(TU_I2C_NON_FILTER)
33
C3737
100pF
50V
R3783 0
(BR)FULL_NIM
R4042
0
R3784 0
(BR)FULL_NIM
R3796
2.2K
(OPT)TW_FE_LNA
R3740
1.8K
(KR/US)TU_IIC_ATSC_1.8K
C3704 100
(NON_BR)HALF_NIM
C3705
100uF
16V
OPT
R3762
2K
OPT
C3739
10uF
10V
OPT
C3743
20pF
50V
BR(TU_I2C_FILTER)
C3706
100uF
16V
OPT
C3718
0.1uF
16V
(BR)FULL_NIM
C3752
0.1uF
16V
(OPT)TW_FE_LNA
C3708
0.1uF
16V
C3701
0.1uF
16V
(BR)RF_SW_OPT
R3797
2.2K
(OPT)TW_FE_LNA
C3738
0.1uF
16V
R3735
NON BR(TU_I2C_NON_FILTER)
33
R4041
0
R3733
100K
C3725
0.1uF
16V
C3727
0.1uF
16V
R3732
100
C3716
0.1uF
16V
(NON_BR)HALF_NIM
C3715
22uF
10V
C3710
0.1uF
16V
C3702
0.1uF 16V
(BR)FULL_NIM
C3753
0.1uF
16V
(OPT)TW_FE_LNA
C3723
22uF
10V
C3742
20pF
50V
BR(TU_I2C_FILTER)
TU3704
TDSN-T701F
(OPT)SI2178_TW_LNA_2INPUT_H
1RF_S/W_CTL
2RESET
3SCL
4SDA
5+B1[3.3V]
6SIF
7+B2[1.8V]
8CVBS
9IF_AGC
10 DIF[P]
11 DIF[N]
12 NC_1
13 NC_2
14 NC_3
15 GND
16 NC_4
17 NC_5
18 NC_6
19 NC_7
20 NC_8
21 NC_9
22 NC_10
23 NC_11
24 NC_12
25 NC_13
26 NC_14
27 NC_15
SHIELD
59
LNA_CTRL_1 57
LNA_CTRL_2 58
A1 A1B1 B1
R3802
0
(OPT)(BR)FULL_NIM_D_DEMODE_0
R3804
0
(OPT)(BR)FULL_NIM_D_DEMODE_0
R3803
0
(OPT)(BR)FULL_NIM_D_DEMODE_0
R3801
0
(OPT)(BR)FULL_NIM_D_DEMODE_0
R3799
10K
(BR)FULL_NIM
R3798
1K
(BR)FULL_NIM
C3750
5pF
50V
OPT
C3751
5pF
50V
OPT
R3780
3.3
OPT R3781
3.3
OPT
R3782
2K
OPT
R3756 0
(OPT)(BR)TU_NON_BUFFER_VIDEO
R3751
220
(BR)TU_BUFFER_VIDEO
R3750
1K
OPT
Q3703
MMBT3906(NXP)
(BR)TU_BUFFER_VIDEO
E
B
C
R3749 0
(BR)TU_BUFFER_VIDEO
R3752
220
(BR)TU_BUFFER_VIDEO
R3753
4.7K
(OPT)(BR)TU_BUFFER_SIF
R3774
470
(OPT)(BR)TU_BUFFER_SIF
R3758
82
(BR)FULL_NIM
Q3705
MMBT3906(NXP)
(OPT)(BR)TU_BUFFER_SIF
E
B
C
R3775
0
(BR)TU_NON_BUFFER_SIF
R3705
0
(BR)RF_SW_OPT
R3761 10
R3760 10
L3703
UBW2012-121F
L3706
120OHM
(BR)FULL_NIM
L3707
UBW2012-121F
(NON_EU)3.3V_TU
L3707-*1
0
1/8W
(EU)3.3V_TU
TU3703
TDSN-B601F(B)
(BR)SI2178_BR_2INPUT_H
1RF_S/W_CTL
2RESET_TUNER
3SCL
4SDA
5+B1[3.3V]
6SIF
7+B2[1.8V]
8CVBS
9NC_1
10 NC_2
11 NC_3
12 +B3[3.3V]
13 +B4[1.23V]
14 RESET_DEMOD
15 GND
16 ERROR
17 SYNC
18 VALID
19 MCLK
20 DATA
21 NC_4
22 NC_5
23 NC_6
24 NC_7
25 NC_8
26 NC_9
27 NC_10
28
SHIELD
A1 A1 B1
B1
TU3700
TDSS-G501D(B)
(EU)SI2156_DVB_1INPUT_H
53.3V
11 DLIF_[N]
2RESET
10 DLIF_[P]
4SDA
1NC_1
9IF_AGC
8NC_3
3SCL
71.8V
6NC_2
12
SHIELD
A1 A1 B1
B1
TU3700-*2
TDSS-H501F(B)
(US/KR)SI2158_ATSC_1INPUT_H
5+B1[3.3V]
11 DIF[N]
2RESET
10 DIF[P]
4SDA
1NC_1
9IF_AGC
8NC_3
3SCL
7+B2[1.8]
6NC_2
12
SHIELD
A1 A1 B1
X
C3713
18pF
50V
NON BR(TU_I2C_NON_FILTER)
C3711
18pF
50V
NON BR(TU_I2C_NON_FILTER)
R3735-*1
BR(TU_I2C_FILTER)
C3711-*1
20pF
50V
BR(TU_I2C_FILTER)
C3713-*1
20pF
50V
BR(TU_I2C_FILTER)
R3736-*1
BR(TU_I2C_FILTER)
TU3702
TDSH-G501D(B)
(ASIA)ISOLATOR_DVB_1INPUT_H
5+B1[3.3V]
11 DIF[N]
2RESET
10 DIF[P]
4SDA
1NC
9IF_AGC
8CVBS
3SCL
7+B2[1.8V]
6SIF
A1 A1 B1
B1
A2
A2
B2
B2
TU_GND_A
CTRL_1
0
should be guarded by ground
0
close to TUNER
1
Add,0929
CTRL_2
1
Size change,0929
2012 SIZE
TW_FE_LNA FILTER_SETTING
450Hz~870MHz
close to TUNER
12.08.14
diagonal noise improve
close to TUNER
350Hz~450MHz
FE_AGC_SPEED_CTL
close to TUNER
Through
Pull-up can’t be applied
because of MODEL_OPT_2
Filter_Type
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
close to the tuner pin, add,09029
54MHz~350MHz
Close to the tuner
0
60mA
TUNER MULTI-OPTION
Frequence
GLOBAL tuner block except T2/S2
HPF
FE_BOOSTER_CTL
LPF
0
GND seperation for ASIS tuner
121118
C3701 : RF_SW_OPT
R3705 : 1k -> 0 ohm
121118
Apply TU_I2C_FILTER
121118
SS Bead -> SUNLORD Bead
121118
SS Bead -> SUNLORD Bead
121220
US(+3.3V_TU Pull-up) 1.2K->1.8K
121118
Apply TU_I2C_FILTER
(18pF->20pF)
121220
20pF->18pF
EAX65283603
2013.1.1429LN4500
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only