LG 32LK450 Service Manual page 56

CN_2INPUT_H_LG3911
TU3701
TU3702
TDFR-C036D
TDTJ-S001D
DVB_1INPUT_H_LGIT close to TUNER
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
R3701
18 18
FULL_NIM
ERR
19
19
SYNC
20
SHIELD
VALID
21
MCL
22
D0
23
D1
24
D2
25
D3
TUNER MULTI-OPTION 26
D4
27
D5
28
D6
29
RF_S/W_CTL
1 ANT_PWR[OPT]
1
BST_CTL
D7
2 BST_CNTL
2
+B1[5V]
3 +B 30
3
NC_1[RF_AGC]
4 NC[RF_AGC] 31
4
NC_2
5 AS
5
SCLT
6 SCL
6
SDAT
7 SDA
7
NC_3
8 NC(IF_TP)
8
SIF
9 SIF SHIELD
9
NC_4
10 NC
10
VIDEO
11 VIDEO
11
GND
12 GND
12
+B2[1.2V]
13 1.2V
13
+B3[3.3V]
14 3.3V
14
RESET
15 RESET
15
IF/AGC
16 IF_AGC_CNTL
16
DIF_1[N]
17 DIF_1
17
DIF_2[P]
18 DIF_2
18
19
19
SHIELD
SHIELD
TU3702-*3
TU3702-*1
TDTR-T035F
TDVJ-H001F
GP3_ATSC_1INPUT_H_SANYO
GP3_ATSC_1INPUT_V_SANYO
TU3702-*4
UDA45AL
TU3702-*5
UDA55AL TU3702-*6
ANT_PWR[OPT]
1 UFA55AL
ANT_PWR[OPT]
1
BST_CNTL
2 BST_CNTL
2
+B
3 +B
NC[RF_AGC] 3
4 NC_1
NC[RF_AGC] 1
AS 4 NC_1
5 NC_2 1
AS
5 2
SCL NC_2
6 SCL +B[+5V] 2
6 3
SDA +B[+5V]
7 NC[RF_AGC] 3
SDA 4
NC(IF_TP) 7 NC[RF_AGC]
8 AS 4
NC(IF_TP) 5
8
SIF AS
9 SIF SCL 5
9 6
NC SCL
10 NC SDA 6
7
VIDEO 10 SDA
11 NC(IF_TP) 7
VIDEO 8
GND 11 NC(IF_TP)
12 SIF 8
GND
12 9
1.2V SIF
13 1.2V NC_3 9
13 10
3.3V NC_3
14 VIDEO 10
3.3V 11
RESET 14 VIDEO
15 GND 11
RESET 12
IF_AGC_CNTL 15 GND
16 IF_AGC_CNTL +1.2V 12
16 13
DIF_1 +1.2V
17 DIF_1 +3.3V 13
17 14
DIF_2 +3.3V
18 RESET 14
DIF_2 15
18 RESET
IF_AGC_CNTL 15
19 16
19 IF_AGC_CNTL
DIF_1 16
SHIELD 17
SHIELD DIF_1
DIF_2 17
18
DIF_2
18
TU3702-*2 19
19
SHIELD
TDVJ-H031F
SHIELD
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.
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
+5V_TU
R3705 0
C3731
C3701
RF_SW_OPT C3728
10uF
0.1uF
C3704 0.1uF
C3703 10V
16V
16V
0.1uF OPT
100pF
16V
OPT
50V
C
Q3704 B
2SC3052
R3707 0 OPT
E
OPT
C3706
0.1uF
16V
close to TUNER
C3702
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
100uF
100pF 0.1uF
16V
50V 16V
close to the tuner pin, add,09029
FULL_NIM
R3702 100
100
close to IF line
HALF_NIM
R3760 0
R3761 0
HALF_NIM
Close to the tuner
FULL_NIM R3724
R3730
FULL_NIM
R3731
FULL_NIM
FULL_NIM_CHINA
R3725
FULL_NIM
R3727
FULL_NIM
R3728
FULL_NIM
R3729
FULL_NIM
R3726
FULL_NIM R3721
FULL_NIM
R3722
FULL_NIM_CHINA
R3723
Close to the CI Slot
R3706
FULL_NIM_BR
+5V_TU
L3701
BOOSTER_OPT
BLM18PG121SN1D
BOOSTER_OPT
R3734
0
Q3701
BOOSTER_OPT
ISA1530AC1
E
B
C
BOOSTER_OPT
C3709
0.01uF
25V
BOOSTER_OPT
OPTION : RF AGC
GPIO must be added.
R3754 TU_IIC_NON_ATSC_SANYO TU_IIC_NON_ATSC_SANYO
10K
FE_AGC_SPEED_CTL +3.3V_TU
IF_AGC_SEL R3740-*1
OPT
1K
TU_IIC_ATSC_SANYO
R3740 TU_IIC_ATSC_SANYO
1.2K R3741
33 R3735
1.2K
33 R3736
OPT
OPT
C3713 C3742
C3743
C3711
18pF 20pF
20pF
18pF
50V 50V
50V
50V
+3.3V_TU
R3733
R3732 100K
100
TUNER_RESET
C3710
0.1uF
16V
R3742
0
R3704 4.7K
IF_AGC_MAIN
FULL_NIM
HALF_NIM
should be guarded by ground
C3712 C3714
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
0
FE_TS_DATA[0-7]
FE_TS_SYNC
0
FE_TS_VAL_ERR
0
FE_TS_CLK
0
FE_TS_DATA[0]
CN_2INPUT_V_LG3911
TU3701-*3
0
FE_TS_DATA[1]
TDFR-C056D
RF_S/W_CNTL
FULL_NIM_BR 1
0 FE_TS_DATA[2]
BST_CNTL
2
TU3701-*2 +B1[+5V]
3
TDFR-B036F
NC[RF_AGC]
4
0 FE_TS_DATA[3]
RF_S/W_CNTL NC_1
1 5
BST_CNTL SCLT
2 6
+B1[5V]
3 SDAT
7
NC_1[RF_AGC]
0 FE_TS_DATA[4] 4 NC_2
5 NC_2 8
SCLT SIF
6 9
SDAT NC_3
7 10
0 NC_3
FE_TS_DATA[5] 8 VIDEO
11
SIF
9
GND
NC_4 12
10
VIDEO +B2[1.2V]
11 13
0
FE_TS_DATA[6] GND +B3[3.3V]
12 14
13 +B2[1.2V] RESET
+B3[3.3V] 15
14
NC_4
RESET 16
0 15
FE_TS_DATA[7] NC_5 SCL
16 17
SCL SDA
17 18
SDA
18 ERR
ERR 19
19
SYNC
SYNC 20
20
VALID
21 VALID 21
MCL MCL
22
22
D0
23 D0
D1 23
24
0 D1
D2 24
25
D2
D3 25
26
D4
27 D3
26
D5
28 D4
27
29 D6
D5
D7 28
30
31 D6
29
SHIELD D7
30
31
SHIELD
BOOSTER : CHINA OPT
BOOSTER_OPT
R3743
10K
R3737
2.2K
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
R3753
4.7K
R3741-*1
1K
+5V_TU
TU_SCL
TU_SDA
R3751
R3752
220 220
TU_CVBS
E
R3749 0
B
R3750 Q3703
1K ISA1530AC1
C
OPT
+3.3V_TU
R3744
4.7K
FULL_NIM
DEMOD_SCL
+3.3V_TU
DEMOD_SDA
INPUT
IC3703-*1
AP1117EG-13
IN OUT
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
VIN
R3769 10K
VCTRL
+5V_Normal FULL_NIM_BCD
NC_1
VIN
NC_2
CN_2INPUT_H_ALTO CN_2INPUT_V_ALTO
TU3701-*4 TU3701-*5
TDFR-C236D TDFR-C256D
RF_S/W_CNTL RF_S/W_CNTL
1 1
BST_CNTL BST_CNTL
2 2
+B1[+5V] +B1[+5V]
3 3
NC[RF_AGC] NC[RF_AGC]
4 4
NC_1 NC_1
5 5
SCLT SCLT
6 6
SDAT SDAT
7 7
NC_2 NC_2
8 8
SIF SIF
9 9
NC_3 NC_3
10 10
VIDEO VIDEO
11 11
GND GND
12 12
+B2[1.2V] +B2[1.2V]
13 13
+B3[3.3V] +B3[3.3V]
14 14
RESET RESET
15 15
NC_4 NC_4
16 16
SCL SCL
17 17
SDA SDA
18 18
ERR ERR
19 19
SYNC SYNC +5V_TU
20 20
VALID VALID
21 21
MCL MCL
22 22
D0 D0
23 23 200mA
D1 D1
24 24
D2 D2
25 25
D3 D3
26 26
D4 D4 C3719
27 27
D5 D5 22uF
28 28
D6 D6
29 29 10V
D7 D7
30 30
31 31
SHIELD SHIELD
GP2R
TUNER_L
+5V_TU
R3755
470 R3758
82
TU_SIF
E
B ISA1530AC1
Q3705
C
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
ADJ/GND
3 1
2
HALF_NIM
OUTPUT
R3768
1.2K
R1
R3703
150
HALF_NIM
OPT
R3766
1
1/10W
C3740 C3741
0.1uF 10uF
IC3701 16V
10V
HALF_NIM
AP2132MP-2.5TRG1 HALF_NIM
[EP]
FULL_NIM_BCD
+1.2V/+1.8V_TU
R3748-*1
10K 380mA
PG GND
1 8
FULL_NIM_BCD
FULL_NIM_SEMTEK
R3764
R3748
EN ADJ
0
2 7
1/10W
5.1K
FULL_NIM
R1
VOUT
3 6
FULL_NIM FULL_NIM
NC
4 5 C3729
C3730
0.1uF
R3747
10uF
16V
9.1K 10V
1005
R2
IC3701-*1
SC4215ISTRT
Vo=0.8*(1+R1/R2)
GND
1 8
FULL_NIM_SEMTEK
EN ADJ
2 7
VO
3 6
NC_3
4 5
+5V_Normal +3.3V_Normal
+3.3V_TU
Size change Size change
L3702 L3703
60mA
MLB-201209-0120P-N2 MLB-201209-0120P-N2
C3722 C3715
C3724 C3726
C3725 C3727
22uF C3723 22uF
0.1uF 0.1uF 0.1uF
0.1uF
16V 16V 22uF 10V
16V 16V
10V 16V
location movement,0929
Add,0929
20101023
14