Gp2R_Large_Tuner - LG 42LV3500 Service Manual

CN_2INPUT_H_LG3911
TU3701
TU3702
TDTJ-S001D TDFR-C036D
DVB_1INPUT_H_LGIT
ANT_PWR[OPT] RF_S/W_CNTL
1 1
BST_CNTL BST_CNTL
2 2
+B +B1[+5V]
3 3
NC[RF_AGC] NC[RF_AGC]
4 4
AS NC_1
5 5
SCL SCLT
6 6
SDA SDAT
7 7
NC[IF_TP] NC_2
8 8
SIF SIF
9 9
NC NC_3
10 10
VIDEO VIDEO
11 11
GND GND
12 12
1.2V +B2[1.2V]
13 13
3.3V +B3[3.3V]
14 14
RESET RESET
15 15
IF_AGC_CNTL NC_4
16 16
DIF_1 SCL
17 17
DIF_2 SDA
18 18
ERR
19
19
SYNC
20
SHIELD
VALID
21
MCL
22
D0
23
D1
24
D2
25
D3
TUNER MULTI-OPTION
26
GP3_ATSC_1INPUT_H_SANYO
D4
TU3702-*3
UDA55AL
27
TU3702-*1
TDVJ-H101F
D5
ANT_PWR[OPT] 28
1 NC_1
1
BST_CNTL NC_2
2 2
D6
+B
3 +B[+5V]
3 29
NC[RF_AGC]
4 NC[RF_AGC]
4
AS AS
5 5
D7
SCL SCL
6
6 30
SDA
7 SDA
7 31
NC(IF_TP)
8 NC(IF_TP)
8
SIF SIF
9 9
NC
10 NC_3
10
VIDEO
11 VIDEO
11
GND
GND
12 12
SHIELD
1.2V +1.2V
13 13
3.3V
14 +3.3V
14
RESET
15 RESET
15
IF_AGC_CNTL IF_AGC_CNTL
16 16
DIF_1 DIF_1
17
17
DIF_2
18 DIF_2
18
19 19
SHIELD SHIELD
GP3_ATSC_1INPUT_H_LGIT
GP2R_AU_1INPUT_H_LGIT
TU3702-*4
RF_S/W_CTL TDTJ-S101D
1
BST_CTL
2
+B1[5V] ANT_PWR
3 1
NC_1
NC_1[RF_AGC] 2
4
+B1[5V]
NC_2 3
5
SCLT RF_AGC
6 4
MOPLL_AS
SDAT 5
7
SCL
NC_3 6
8
SDA
SIF 7
9
NC_4 NC_2
10 8
SIF
VIDEO 9
11
NC_3
GND 10
12
+B2[1.2V] VIDEO
13 11
+B3[3.3V] GND
12
14
+B2[1.2V]
RESET 13
15
+B3[3.3V]
IF/AGC 14
16
DIF_1[N] RESET
17 15
IF_AGC
DIF_2[P] 16
18
DIF_1[N]
17
19 DIF_2[P]
18
SHIELD
19
TU3702-*2 SHIELD
TDTR-T036F
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 © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes

GP2R_LARGE_TUNER

RF_SWITCH_CTL
Pull-up can't be applied
because of MODEL_OPT_2
close to TUNER
OPT
R3762 0
CONTROL_ATTEN
close to TUNER
+5V_TU
R3705 0
C3701
RF_SW_OPT C3728
0.1uF
C3704 0.1uF
C3703
16V
0.1uF 16V
100pF
16V OPT
50V C
Q3704
2SC3052
R3707 0
OPT
E
OPT
C3706
0.1uF
16V
C3702 close to TUNER
0.1uF 16V
+3.3V_TU
+1.2V/+1.8V_TU
CN
C3708
C3707
C3739
0.1uF
100pF
10uF
16V
FULL_NIM 50V
6.3V
C3737 C3738 C3705
100pF 0.1uF 100uF
16V
50V 16V
close to the tuner pin, add,09029
FULL_NIM
R3702 100
R3701 100
close to IF line
FULL_NIM
HALF_NIM
R3760 0
R3761 0
HALF_NIM
Close to the tuner
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM_CHINA
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM_CHINA
Close to the CI Slot
+5V_TU
BOOSTER_OPT
E
C BOOSTER_OPT
C3709
0.01uF
25V
BOOSTER_OPT
OPTION : RF AGC
C3731
10uF
10V
OPT
GPIO must be added.
R3754 TU_IIC_NON_ATSC_SANYO
10K
B
FE_AGC_SPEED_CTL +3.3V_TU
IF_AGC_SEL R3740-*1
OPT
1K
TU_IIC_ATSC_SANYO
R3740
1.2K
33 R3735
TU_I2C_NON_FILTER
TU_I2C_NON_FILTER
C3713 33
R3736
C3743
18pF TU_I2C_NON_FILTER
20pF
TU_I2C_NON_FILTER 50V C3742
50V
C3711 20pF
TU_I2C_FILTER
18pF
50V
50V
TU_I2C_FILTER
C3711-*1 C3713-*1
20pF 20pF
+3.3V_TU
50V 50V
TU_I2C_FILTER
TU_I2C_FILTER
TU_I2C_FILTER
TU_I2C_FILTER
R3735-*1
R3733 R3736-*1
R3732 100K
100
COIL COIL
TUNER_RESET
C3710
0.1uF
16V
0
R3704
IF_AGC_MAIN
HALF_NIM
should be guarded by ground
C3714
C3712
22pF 22pF
50V 50V
FULL_NIM FULL_NIM
IF_N_MSTAR
IF_P_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
R3724
0
FE_TS_SYNC FE_TS_DATA[0-7]
R3730
0
FE_TS_VAL_ERR
R3731
0
FE_TS_CLK
R3725
0 FE_TS_DATA[0]
R3727
0 FE_TS_DATA[1]
R3728
0 FULL_NIM_BR
FE_TS_DATA[2]
TU3701-*2
TDFR-B036F
R3729
0
FE_TS_DATA[3]
1 RF_S/W_CNTL
BST_CNTL
2
+B1[5V]
3
R3726 NC_1[RF_AGC]
0 FE_TS_DATA[4] 4
NC_2
5
SCLT
6
SDAT
7
R3721
0 FE_TS_DATA[5] NC_3
8
SIF
9
NC_4
10
VIDEO
R3722 11
0 FE_TS_DATA[6] GND
12
+B2[1.2V]
13
14 +B3[3.3V]
R3723 RESET
15
0 FE_TS_DATA[7]
NC_5
16
SCL
17
SDA
18
ERR
19
SYNC
20
VALID
21
22 MCL
D0
23
D1
R3706 24
0 D2
25
D3
FULL_NIM_BR 26
D4
27
D5
28
D6
29
30 D7
31
SHIELD
BOOSTER : CHINA OPT
L3701 BOOSTER_OPT
BLM18PG121SN1D
BOOSTER_OPT
R3734
R3743
0
10K
Q3701
BOOSTER_OPT
ISA1530AC1
R3737
2.2K
B
BOOSTER_OPT
C
R3745
Q3702 B 10K
FE_BOOSTER_CTL
2SC3052
LNA2_CTL
The pull-up/down of LNA2_CTL
E
BOOSTER_OPT is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
TU_IIC_NON_ATSC_SANYO
R3741-*1
1K
TU_IIC_ATSC_SANYO
R3741
1.2K
+5V_TU
TU_SCL
TU_SDA
R3751 R3752
220
220
E
R3749 0
B
R3750 Q3703
1K ISA1530AC1
C
OPT
+3.3V_TU
R3742
R3744
4.7K 4.7K
FULL_NIM
FULL_NIM
DEMOD_SCL
+3.3V_TU
DEMOD_SDA
IC3703-*1
AP1117EG-13
IN
ADJ/GND
HALF_NIM_1.2V_DIODES
Please, check multi Item! 10/12
R3771 10K
C3717 FULL_NIM_BCD
0.1uF
16V R3770 10K
FULL_NIM_SEMTEK
R3769 10K
+5V_Normal
FULL_NIM_BCD
CN_2INPUT_H_ALTO
TU3701-*4
TDFR-C236D
RF_S/W_CNTL
1
BST_CNTL
2
+B1[+5V]
3
NC[RF_AGC]
4
NC_1
5
SCLT
6
SDAT
7
NC_2
8
SIF
9
NC_3
10
VIDEO
11
GND
12
+B2[1.2V]
13
+B3[3.3V]
14
RESET
15
NC_4
16
SCL
17
SDA
18
ERR
19
SYNC
20
VALID
21
MCL
22
D0
23 200mA
D1
24
D2
25
D3
26
D4
27
D5
28
D6
29
D7
30
31
SHIELD
+5V_TU
R3755
470 R3758
82
TU_SIF
E
B
ISA1530AC1
R3753 Q3705
C
4.7K
TU_CVBS
DEMOD_RESET
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
HALF_NIM_1.2V_BCD
IC3703
R2
AZ1117BH-ADJTRE1
HALF_NIM
R3767 +1.2V/+1.8V_TU
10
INPUT ADJ/GND
3 1
2
HALF_NIM
OUTPUT
R3768
1.2K
R1
OUT
R3703
150
HALF_NIM
OPT
R3766
1
1/10W
C3740 C3741
0.1uF
10uF
IC3701 16V
HALF_NIM 10V
AP2132MP-2.5TRG1 [EP] HALF_NIM
FULL_NIM_BCD
+1.2V/+1.8V_TU
R3748-*1
10K 380mA
PG GND
1 8
FULL_NIM_BCD
FULL_NIM_SEMTEK
R3764
EN ADJ R3748
2 7 0
1/10W
5.1K
FULL_NIM
R1
VIN VOUT
3 6
FULL_NIM FULL_NIM
VCTRL NC
4 5
C3729 C3730
R3747 0.1uF
16V 10uF
9.1K 10V
1005
R2
IC3701-*1
SC4215ISTRT
Vo=0.8*(1+R1/R2)
NC_1 GND
1 8
FULL_NIM_SEMTEK
EN ADJ
2 7
VIN VO
3 6
NC_2 NC_3
4 5
+5V_TUNER
+3.3V_Normal
+5V_TU
+3.3V_TU
Size change Size change
L3702
L3703
MLB-201209-0120P-N2 60mA MLB-201209-0120P-N2
C3722 C3715
C3719 C3724 C3726
C3727
C3723 C3725
0.1uF 22uF 22uF
22uF 0.1uF
22uF 0.1uF
16V 16V 10V
10V 16V
16V
10V
location movement,0929
Add,0929
GP2R 20101023
TUNER_L 14
LGE Internal Use Only
0.1uF
16V