LG 42LD460B/H Service Manual page 33

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GIT CAN H/N TUNER for US&KOR&BRAZIL&TAIWAN&AUS
RF_S/W_CTL
1
BST_CTL
2
+B1[5V]
3
NC_1[RF_AGC]
4
NC_2
5
SCLT
6
SDAT
7
NC_3
8
SIF
9
NC_4
10
VIDEO
11
GND
12
+B2[1.2V]
13
+B3[3.3V]
14
RESET
15
IF/AGC
16
DIF_1[N]
17
D I F _ 2 [ P ]
18
19
SHIELD
TU5001-*1
TDTR-T035F
NTSC_2INPUT_H_LGIT
ANT_PWR[OPT]
1
BST_CNTL
2
+B
3
NC[RF_AGC]
4
AS
5
DVB_1INPUT_H_LGIT
SCL
6
SDA
7
TU5001
NC(IF_TP)
8
SIF
9
NC
TDTJ-S001D
10
VIDEO
11
GND
12
1.2V
13
3.3V
14
RESET
15
ANT_PWR[OPT]
IF_AGC_CNTL
16
1
DIF_1
17
DIF_2
18
BST_CNTL
2
19
SHIELD
+B
3
TU5001-*2
TDVJ-H031F
NC[RF_AGC]
4
NTSC_1INPUT_V_LGIT
AS
5
SCL
ANT_PWR[OPT]
1
6
BST_CNTL
2
+B
3
SDA
NC[RF_AGC]
4
7
AS
5
SCL
6
NC[IF_TP]
SDA
7
8
NC(IF_TP)
8
SIF
9
SIF
NC
10
9
VIDEO
11
GND
12
NC
1.2V
13
10
3.3V
14
RESET
15
VIDEO
IF_AGC_CNTL
16
11
DIF_1
17
DIF_2
18
GND
12
19
SHIELD
1.2V
13
TU5001-*3
TDVJ-H001F
3.3V
14
NTSC_1INPUT_H_LGIT
RESET
15
IF_AGC_CNTL
16
NTSC_1INPUT_H_SANYO
TU5001-*4
DIF_1
UDA45AL
17
ANT_PWR[OPT]
1
DIF_2
BST_CNTL
2
18
+B
3
NC[RF_AGC]
4
AS
5
SCL
6
19
SDA
7
NC(IF_TP)
8
SIF
9
NC
SHIELD
10
VIDEO
11
GND
12
1.2V
13
3.3V
14
RESET
15
IF_AGC_CNTL
16
DIF_1
17
DIF_2
18
19
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.
OPTION : RF S/W
RF_SWITCH_CTL
C5002
0 . 1 u F
16V
RF_S/W_OPT
P u l l - u p c a n ' t b e a p p l i e d
because of MODEL_OPT_2
+5V_TU
R5002
0
C5003
C5001
RF_S/W_OPT
0 . 1 u F
100pF
16V
50V
R5001
0
RF_AGC_OPT
+3.3V_TU
+1.2V/+1.8V_TU
C5006
C5007
100pF
0 . 1 u F
50V
16V
0
R5003
+3.3V_TU
C5031
0 . 1 u F
16V
+5V_TU
L5001
MLB-201209-0120P-N2
BOOSTER_OPT
R5014
R5019
10K
0
BOOSTER_OPT
BOOSTER_OPT
E
R5017
Q5001
2.2K
ISA1530AC1
B
BOOSTER_OPT
BOOSTER_OPT
C
C
BOOSTER_OPT
Q5002
B
2SC3052
BOOSTER_OPT
C5011
E
0 . 0 1 u F
25V
BOOSTER_OPT
+3.3V_TU
+3.3V_TU
R5011
R5009
100K
100
TUNER_RESET
C5010
0 . 1 u F
16V
NON_DEMOD_OPT
0
R5034
IF_N_MSTAR
NON_DEMOD_OPT
0
R5035
IF_P_MSTAR
R5006
100
DEMOD_OPT
R5007
100
DEMOD_OPT
IC5001
AZ1117H-ADJTRE1(EH11A)
+1.2V/+1.8V_TU
R5036
10
INPUT
ADJ/GND
3
1
2
OUTPUT
R5038
1.2K
R5033
1
C5029
10uF
10V
OPTION : BOOSTER
R5021
10K
LNA2_CTL
T h e p u l l - u p / d o w n o f L N A 2 _ C T L
is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
Option name:BR_TU_I2C
B R A Z I L m o d e l u s e I 2 C S t a n d a r d M o d e
C5025
0 . 1 u F
16V
TU_SCL
TU_SDA
0
R5024
R5022
1K
IF_AGC
C5016
0 . 1 u F
s h o u l d b e g u a r d e d b y g r o u n d
16V
OPT
C l o s e t o t h e t u n e r
IF_N_EXT
IF_P_EXT
+5V_Normal
+5V_TU
L5002
200mA
BLM18PG121SN1D
C5018
C5019
C5021
C5023
C5028
0 . 1 u F
22uF
22uF
0 . 1 u F
0 . 1 u F
16V
16V
16V
16V
16V
+3.3V_Normal
+3.3V_TU
L5003
60mA
BLM18PG121SN1D
C5017
C5024
C5020
C5022
22uF
0 . 1 u F
0 . 1 u F
22uF
16V
16V
16V
16V
OPTION : RF AGC
C5026
C5027
0 . 1 u F
10uF
16V
10V
RF_AGC_OPT
RF_AGC_OPT
C
R5028
10K
G P I O m u s t b e a d d e d .
Q5003
B
IF_AGC_SEL
2SC3052
RF_AGC_OPT
RF_AGC_OPT
E
+5V_TU
R5029
470
R5032
82
TU_SIF
E
B
ISA1530AC1
R5025
Q5004
C
4.7K
+5V_TU
R5026
1K
R5030
R5031
OPT
220
220
NON_TU_CVBS_BYPASS
TU_CVBS
E
NON_TU_CVBS_BYPASS
B
Q5005
R5027
ISA1530AC1
C
1K
OPT
* C h a n g e H i s t o r y .
V e r 1 . 0 - - > 1 . 1 : C h a n g e o f c h i p t y p e , 0 9 1 0 1 9 , w . s . j e o n g
V e r 1 . 1 - - > 1 . 2 : C h a n g e o f c h i p t y p e , A d d o f T u n e r P / N f o r N T S C _ 1 I N P U T
1 . D e - r e t i n g
1 ) R 5 0 2 9 , R 5 0 3 0 , R 5 0 3 1 : 1 0 0 5 T y p e = = > 1 6 0 8 T y p e ( w . s . J e o n g _ 1 0 1 9 )
2 ) R 5 0 3 0 , R 5 0 3 1 : 2 0 0 / 1 6 0 8 T y p e = = > 2 2 0 / 2 0 1 2 T y p e ( w . s . J e o n g _ 1 1 1 6 )
2 . A D D o f T U N E R P / N ( w . s . J e o n g _ 1 1 1 6 )
CONTROL_ATTEN
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 t .
GP2_Saturn7M
V e r . 1 . 1
26
ATSC_CAN TUNER
e r 1 . 1 - - >

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