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LG 26LV2500-DA Service Manual page 28

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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
GP3_ATSC_1INPUT_H_SANYO
TU3702-*3
D4
UDA55AL
27
TU3702-*1
TDVJ-H101F
D5
28
ANT_PWR[OPT]
NC_1
1
1
BST_CNTL
2
NC_2
2
+B
D6
3
+B[+5V]
3
29
NC[RF_AGC]
NC[RF_AGC]
4
4
AS
5
AS
5
D7
SCL
6
SCL
6
30
SDA
SDA
7
7
31
NC(IF_TP)
NC(IF_TP)
8
8
SIF
9
SIF
9
NC
10
NC_3
10
VIDEO
VIDEO
11
11
GND
12
GND
12
SHIELD
1.2V
13
+1.2V
13
3.3V
+3.3V
14
14
RESET
RESET
15
15
IF_AGC_CNTL
16
IF_AGC_CNTL
16
DIF_1
17
DIF_1
17
DIF_2
DIF_2
18
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
ANT_PWR
+B1[5V]
1
3
NC_1[RF_AGC]
NC_1
4
2
NC_2
+B1[5V]
3
5
RF_AGC
SCLT
4
6
MOPLL_AS
SDAT
5
7
NC_3
SCL
8
6
SDA
SIF
7
9
NC_2
NC_4
8
10
SIF
VIDEO
11
9
GND
NC_3
10
12
VIDEO
+B2[1.2V]
11
13
GND
+B3[3.3V]
12
14
RESET
+B2[1.2V]
15
13
+B3[3.3V]
IF/AGC
14
16
RESET
DIF_1[N]
15
17
IF_AGC
DIF_2[P]
18
16
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.
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
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
+3.3V_TU
20pF
20pF
50V
50V
TU_I2C_FILTER
TU_I2C_FILTER
TU_I2C_FILTER
TU_I2C_FILTER
R3733
R3735-*1
R3736-*1
R3732
100K
100
COIL
COIL
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]
0
FE_TS_DATA[1]
FULL_NIM_BR
0
FE_TS_DATA[2]
TU3701-*2
TDFR-B036F
0
FE_TS_DATA[3]
RF_S/W_CNTL
1
BST_CNTL
2
+B1[5V]
3
NC_1[RF_AGC]
0
FE_TS_DATA[4]
4
5
NC_2
SCLT
6
SDAT
7
0
NC_3
FE_TS_DATA[5]
8
SIF
9
NC_4
10
VIDEO
11
0
FE_TS_DATA[6]
GND
12
13
+B2[1.2V]
+B3[3.3V]
14
RESET
0
15
FE_TS_DATA[7]
NC_5
16
SCL
17
SDA
18
ERR
19
SYNC
20
21
VALID
MCL
22
D0
23
D1
24
0
D2
25
D3
26
D4
27
D5
28
29
D6
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
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
+5V_TU
20
VALID
21
MCL
22
D0
23
200mA
D1
24
D2
25
D3
26
D4
C3719
27
D5
22uF
28
D6
29
10V
D7
30
31
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_TUNER
+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

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26lv2500