GLOBAL tuner block except EU and China
FE_AGC_SPEED_CTL IF_AGC_SEL FE_BOOSTER_CTL LNA2_CTL
R3741-*3 2.2K TU_IIC_BR_2.2K
DEMOD_SCL
RF_SWITCH_CTL
TU3703 TDSN-B601F(B)
TU3704 TDSN-T701F(B)
TU3702 TDSH-G501D ISOLATOR_DVB_1INPUT_H
R3740-*3 2.2K TU_IIC_BR_2.2K
Pull-up can’t be applied because of MODEL_OPT_2
DEMOD_SDA
TU3700 TDSS-G201D
R3741-*2 1.2K TU_IIC_ATSC_1.2K
SI2156_DVB_1INPUT_H
R3740-*2 1.2K TU_IIC_ATSC_1.2K
SI2178_BR_2INPUT_H
SI2178_TW_LNA_2INPUT_H
+3.3V_TU
+3.3V_TU R3740-*1 1K TU_IIC_NON_ATSC_1K R3733 100K
close to TUNER
3 4 5 6 7 8 9 10 11 B1
B1
A1
RESET
2
SCL
3
SDA
4
+B1[3.3V]
5
SIF
6
+B2[1.8V]
7
CVBS
8
IF_AGC
9
DIF[P]
10
DIF[N]
11 12
A1
13 A2
14
A2
B2
B2
15 16
TU_GND_A
17
GND seperation for ASIS tuner
18 19
22 23 24 25 LNA_CTRL_1
TW_FE_LNA R3796 2.2K
LNA_CTRL_1
TW_FE_LNA R3797 2.2K
LNA_CTRL_2
LNA_CTRL_2
close to TUNER SHIELD C3752 0.1uF 16V TW_FE_LNA
57
26
58
27
B1
A1
C3753 0.1uF 16V TW_FE_LNA
RESET
2
SCL
3
SDA
4
B1[+3.3V]
5
SIF
6
B2[1.8V]
7
CVBS
8
IF_AGC
9
DIF[P]
10
DIF[N]
11
NC_1
12
NC_2
13
NC_3
14
GND
15
NC_4
16
NC_5
17
NC_6
18
NC_7
19
NC_8
20
NC_9
21
R3705
RESET_TUNER
1K
C3701 RF_SW_OPT 0.1uF 16V
1 R3800 10K RF_SW_OPT
2
SCL
3
SDA
4
+B1[3.3V]
5
SIF
6 7
CVBS
8
NC_1
9
NC_2
10 +3.3V_TU
NC_3
11 FULL_NIM +1.23V_TU L3706
+B3[3.3V]
RESET_DEMOD
B1
B1
FULL_NIM C3718 0.1uF 16V
A1
VALID MCLK DATA
R3740 1.8K TU_IIC_ATSC_1.8K
SCL
1K FULL_NIM C3754 0.1uF 16V
R3736
NC_2
C3702
close to TUNER
NC_10
22
NC_11
23
NC_12
24
NC_13
25
NC_14
26
NC_15
27
33
TU_SDA
R3783
+3.3V_TU
0
W_A_DEMOD
+B2[1.8V] NC_3
R3784 HALF_NIM/IF_FILTER HALF_NIM/IF_FILTER
IF_AGC
R3761-*1 10
R3760-*1 10
R3756 C3750 5pF 50V OPT
DIF[P] R3761
0
HALF_NIM
DIF[N]
R3760
0
R3780 3.3 OPT
R3781 3.3 OPT
R3782 2K OPT
R3762 2K OPT
1 2 3
NC
8 9
RESET
10
SCL
11 12
4 5 6 7 8
SDA 13 14
+B1[3.3V]
15
ALIF_[N]
16 17
+B2[1.8]
18
ALIF_[P]
19 20
9 10 11
IF_AGC 21 22
DIF[P]
23
DIF[N]
24 25
B1
B1
A1
A1
26 27 B1
12
B1
A1
C
IF_P_MSTAR
SHIELD FULL_NIM R3799 10K
close to TUNER
R3801 0
IF_N_MSTAR 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
R3801-1* 47
FULL_NIM_D_DEMODE_0 R3802 0
+3.3V_TU
FULL_NIM_D_DEMODE_47
L3707
R3802-1* 47
FULL_NIM_D_DEMODE_0 R3803 0
+1.8V_TU
FULL_NIM_D_DEMODE_47 R3803-*1 47
FULL_NIM_D_DEMODE_0 R3804 0
+3.3V_TU_Noise_X5R
+3.3V_TU_Noise C3707 100pF 50V
C3708 0.1uF 16V
C3707-*1 1uF 10V
FULL_NIM_D_DEMODE_47
NC_4
FULL_NIM_D_DEMODE_0
C3737 100pF 50V
R3804-*1 47
C3738 0.1uF 16V
close to the tuner pin, add,09029
NC_5 NC_6
R3704
NC_7
C3716 0.1uF 16V HALF_NIM
100
IF_AGC_MAIN
HALF_NIM should be guarded by ground
NC_8 NC_9 FE_TS_SYNC
NC_10 FE_TS_VAL_ERR
B1
B1
A1
A1
+3.3V_TU
R1 3
28
59
+1.8V_TU
AP1117E18G-13
FE_TS_CLK
IN ADJ/GND
FE_TS_DATA[0]
OPT
1
R3710 200 1%
OUT 2
SHIELD C3741-*1 R3711 0
Vo=VREF*(1+R2/R1)
R3766 1
10uF 10V CAP_X7R_MP
VREF = 1.25V R2
380mA CAP_10uF_X5R C3741 CHANGE TO 10UF 10V X5R
C3740 0.1uF 16V
+1.23V_TU
Filter_Type
SDA
54MHz~350MHz
1
0
LPF
350Hz~450MHz
0
0
Through
450Hz~870MHz
0
1
HPF
EN
+B1[3.3V]
VIN
SIF +B2[1.8V] CVBS IF_AGC DIF[P]
+5V_Normal
DIF[N] NC_1 NC_2 NC_3 GND NC_4
+3.3V_Normal
+3.3V_TU
NC_5 NC_6
Size change,0929 L3703 CIS21J121
NC_9 NC_10
3
6
4
5
60mA
A1
C3725 0.1uF 16V
NC
FULL_NIM_TJ
EN2
C3715 22uF 6.3V
C3727 0.1uF 16V
R1
VOUT
FULL_NIM_BCD
1005
VIN3
C3723 22uF 6.3V
FULL_NIM_BCD FULL_NIM_BCD R3748 R3776 11K 10K
C3729 0.1uF 16V FULL_NIM
R2
NC4
8
1
2
7
3
6
4
5
C3730-*1
BCD Vo=0.6*(1+R1/R2) TJ
Vo=0.8*(1+R1/R2) 10uF 10V CAP_X7R_MP
GND
ADJ/SENSE
C3730 CAP_10uF_X5R CHANGE TO 10UF 10V X5R
R3713 0
NC_1
NC_13
NC_15
ADJ
R3747 20K
NC_12
NC_14
7
IC3701-*1 TJ4220GDP-ADJ[EP]GND
NC_8
NC_11
VCTRL
2
FULL_NIM_BCD
NC_7
GND
FULL_NIM_BCD
FULL_NIM_OPT C3717 0.1uF 16V
RESET_TUNER
8
9
CTRL_2
1 THERMAL
CTRL_1
RF_S/W_CTL
SCL
PG
10K
FULL_NIM R3748-*1 5.1K
FULL_NIM_TJ R3776-*1 0
VOUT
NC_2
28
SHIELD
B
Close to the tuner
9
7
Q3703 MMBT3906(NXP) TU_BUFFER_VIDEO
A1
10K
6
TU_CVBS E
0
TU_BUFFER_VIDEO
FULL_NIM
5
R3749
R3750 1K OPT
R3769
4
0
TU_NON_BUFFER_VIDEO
C3751 5pF 50V OPT
L3704
3
R3752 220 TU_BUFFER_VIDEO
TW_FE_LNA FILTER_SETTING Frequence
2
R3751 220 TU_BUFFER_VIDEO
0
W_A_DEMOD
R3771 1
C
TU_I2C_FILTER C3742 C3743 20pF 20pF 50V 50V TU_I2C_FILTER
IC3703
B1
TU_GND_A SI2178_TW_2INPUT_H
TU3700-*1 TDSS-H501F
B R3753 4.7K TU_BUFFER_SIF
TU_SCL
TU_I2C_NON_FILTER TU_I2C_NON_FILTER C3713 C3711 18pF 18pF 50V 50V TU_I2C_NON_FILTER
+B1[3.3V]
Q3705 MMBT3906(NXP) TU_BUFFER_SIF
IC3701 AP2132MP-2.5TRG1 [EP]
TU3704-*1 TDSN-T601F
SI2176_ATSC_1INPUT_H
R3741 1.8K TU_IIC_ATSC_1.8K
TU_I2C_NON_FILTER R3735 33
SDA
E
12
FULL_NIM R3798
BR_RESET_DEMOD
SYNC
TU_SIF
C3710 0.1uF 16V
RESET
R3758 82
TU_NON_BUFFER_SIF
HALF_NIM
120
+B4[1.23V]
ERROR
TU_I2C_FILTER R3736-*1
R3774 470 TU_BUFFER_SIF R3775 0
0.1uF 16V W_A_DEMOD
+B2[1.8V]
GND
TU_I2C_FILTER R3735-*1
R3741-*1 1K TU_IIC_NON_ATSC_1K
FULL_NIM_D_DEMODE_47
A1
TUNER MULTI-OPTION
1
+3.3V_TU
THERMAL
0 R3715
21 NON_ASIA
NON_ASIA 0 R3714
TU_GND_A
20
RF_S/WCTL
TUNER_RESET
C3713-*1 20pF 50V TU_I2C_FILTER
TU_GND_A
2
1
NC_1
C3711-*1 20pF 50V TU_I2C_FILTER
TU_GND_A
1
NC
RF_S/W_CTL
R3732 100
FULL_NIM_TJ R3747-*1 9.1K
SHIELD
CHANGE TO 6.3V 2012 X5R
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.
Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes
CHANGE TO 6.3V 2012 X5R
NC4_S7LRM TUNER_NON_EU
2012.09.19 14
LGE Internal Use Only