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LG 32LV355C Service Manual page 29

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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
TU3702-*3
D4
UDA55AL
27
TU3702-*1
TDVJ-H101F
D5
28
ANT_PWR[OPT]
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
6
SCL
6
30
SDA
SDA
7
7
31
NC(IF_TP)
NC(IF_TP)
8
8
SIF
9
SIF
9
NC
NC_3
10
10
VIDEO
VIDEO
11
11
GND
12
GND
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
17
DIF_1
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
ANT_PWR
+B1[5V]
1
3
NC_1
NC_1[RF_AGC]
4
2
NC_2
+B1[5V]
3
5
RF_AGC
SCLT
4
6
MOPLL_AS
SDAT
7
5
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
GND
+B3[3.3V]
12
14
+B2[1.2V]
RESET
13
15
IF/AGC
+B3[3.3V]
16
14
RESET
DIF_1[N]
15
17
IF_AGC
D I F _ 2 [ P ]
16
18
DIF_1[N]
17
19
D I F _ 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
P u l l - u p c a n ' t b e a p p l i e d
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 . 1 u F
C3704
0 . 1 u F
C3703
16V
0 . 1 u F
16V
100pF
16V
OPT
50V
Q3704
2SC3052
R3707
0
OPT
OPT
C3706
0 . 1 u F
16V
close to TUNER
C3702
0 . 1 u F
16V
+3.3V_TU
+1.2V/+1.8V_TU
CN
C3708
C3707
C3739
0 . 1 u F
100pF
10uF
16V
FULL_NIM
50V
6.3V
C3737
C3738
C3705
100pF
0 . 1 u F
100uF
50V
16V
16V
c l o s e t o t h e t u n e r p i n , a d d , 0 9 0 2 9
FULL_NIM
R3702
100
R3701
100
c l o s e t o I F l i n e
FULL_NIM
HALF_NIM
R3760
0
R3761
0
HALF_NIM
C l o s e t o t h e t u n e r
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM_CHINA
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM
FULL_NIM_CHINA
C l o s e t o t h e C I S l o t
+5V_TU
C3709
0 . 0 1 u F
25V
BOOSTER_OPT
OPTION : RF AGC
C3731
10uF
10V
OPT
G P I O m u s t b e a d d e d .
C
R3754
TU_IIC_NON_ATSC_SANYO
B
10K
FE_AGC_SPEED_CTL
+3.3V_TU
IF_AGC_SEL
OPT
R3740-*1
1K
E
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
R3736-*1
R3733
R3732
100K
100
COIL
COIL
TUNER_RESET
C3710
0 . 1 u F
16V
0
R3704
IF_AGC_MAIN
HALF_NIM
s h o u l d b e g u a r d e d b y g r o u n d
C3712
22pF
50V
FULL_NIM
IF_N_MSTAR
IF_P_MSTAR
1 . s h o u l d b e g u a r d e d b y g r o u n d
2 . N o v i a o n b o t h o f t h e m
3 . S i g n a l W i d t h > = 1 2 m i l s
S i g n a l t o S i g n a l W i d t h = 1 2 m i l s
G r o u n d W i d t h > = 2 4 m i l s
R3724
0
FE_TS_DATA[0-7]
FE_TS_SYNC
R3730
0
FE_TS_VAL_ERR
R3731
0
FE_TS_CLK
R3725
0
FE_TS_DATA[0]
R3727
0
FE_TS_DATA[1]
R3728
FULL_NIM_BR
0
FE_TS_DATA[2]
TU3701-*2
TDFR-B036F
R3729
0
FE_TS_DATA[3]
RF_S/W_CNTL
1
BST_CNTL
2
+B1[5V]
3
R3726
NC_1[RF_AGC]
0
FE_TS_DATA[4]
4
NC_2
5
6
SCLT
SDAT
7
R3721
0
FE_TS_DATA[5]
NC_3
8
9
SIF
NC_4
10
VIDEO
R3722
11
0
FE_TS_DATA[6]
GND
12
+B2[1.2V]
13
+B3[3.3V]
14
R3723
RESET
0
FE_TS_DATA[7]
15
NC_5
16
SCL
17
SDA
18
ERR
19
SYNC
20
VALID
21
MCL
22
D0
23
R3706
D1
24
0
D2
25
D3
FULL_NIM_BR
26
D4
27
28
D5
D6
29
D7
30
31
SHIELD
BOOSTER : CHINA OPT
L3701 BOOSTER_OPT
BLM18PG121SN1D
BOOSTER_OPT
BOOSTER_OPT
R3734
R3743
0
10K
Q3701
BOOSTER_OPT
ISA1530AC1
E
R3737
2.2K
B
BOOSTER_OPT
C
R3745
C
BOOSTER_OPT
Q3702
B
10K
FE_BOOSTER_CTL
2SC3052
LNA2_CTL
T h e p u l l - u p / d o w n o f L N A 2 _ C T L
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
R3750
B
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
C3714
22pF
50V
FULL_NIM
HALF_NIM_1.2V_DIODES
P l e a s e , c h e c k m u l t i I t e m ! 1 0 / 1 2
R3771
C3717
FULL_NIM_BCD
0 . 1 u F
16V
R3770
FULL_NIM_SEMTEK
R3769
+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
T h i s w a s b e i n g a p p l i e d t o t h e o n l y c h i n a d e m o d ,
s o t h i s h a s t o b e d e l e t e d i n b o t h m a i n a n d I S D B s h e e
HALF_NIM_1.2V_BCD
IC3703
R2
AZ1117BH-ADJTRE1
HALF_NIM
R3767
+1.2V/+1.8V_TU
10
INPUT
ADJ/GND
3
1
2
IC3703-*1
HALF_NIM
OUTPUT
AP1117EG-13
R3768
1.2K
R1
IN
OUT
ADJ/GND
HALF_NIM
R3766
1
1/10W
C3741
C3740
0 . 1 u F
10uF
IC3701
16V
HALF_NIM
10V
AP2132MP-2.5TRG1
[ E P ]
HALF_NIM
FULL_NIM_BCD
+1.2V/+1.8V_TU
R3748-*1
10K
10K
PG
GND
1
8
FULL_NIM_BCD
FULL_NIM_SEMTEK
R3764
R3748
10K
EN
ADJ
2
7
0
1/10W
5.1K
FULL_NIM
R1
VIN
VOUT
3
6
10K
FULL_NIM
FULL_NIM
VCTRL
NC
4
5
C3729
C3730
R3747
0 . 1 u F
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
+5V_TU
+3.3V_TU
S i z e c h a n g e
S i z e c h a n g e
L3702
L3703
MLB-201209-0120P-N2
60mA
MLB-201209-0120P-N2
C3722
C3719
C3724
C3726
C3723
C3725
0 . 1 u F
22uF
22uF
0 . 1 u F
0 . 1 u F
16V
16V
22uF
10V
16V
16V
10V
l o c a t i o n m o v e m e n t , 0 9 2 9
Add,0929
GP2R
20101023
TUNER_L
14
LGE Internal Use Only
R3703
150
OPT
380mA
+3.3V_Norm
C3715
C3727
22uF
0 . 1 u F
10V
16V

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