LG 32LD340H Service Manual page 33

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.
+5V_TU
C5003
C5001
0 . 1 u F
100pF
16V
50V
+3.3V_TU
+1.2V/+1.8V_TU
C5006
C5007
100pF
0 . 1 u F
50V
16V
0
R5003
+3.3V_TU
IC5001
AZ1117H-ADJTRE1
R5036
10
VIN ADJ/GND
3 1
2
VOUT
R5038
1.2K
C5031
0 . 1 u F
16V
+3.3V_TU
TU_SCL
TU_SDA
+3.3V_TU
R5011
R5009
100K
100
TUNER_RESET
C5010
0 . 1 u F
16V
0
R5034
IF_N_MSTAR
0
R5035
IF_P_MSTAR
+1.2V/+1.8V_TU
+5V_TUNER
+5V_TU
R5033
L5002
1 200mA
BLM18PG121SN1D
C5019 C5021
C5029 C5028
0 . 1 u F
22uF
10uF 0 . 1 u F
16V
16V
10V 16V
+3.3V_Normal
+3.3V_TU
L5003
60mA
BLM18PG121SN1D
C5022 C5024
C5020
22uF 0 . 1 u F
16V
16V
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
R5022
1K
IF_AGC_MAIN
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
* 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 )
C5023
0 . 1 u F
16V
0 . 1 u F
16V
+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
OPT
TU_CVBS
E
OPT
B Q5005
R5027 ISA1530AC1
C
1K
OPT
P / N f o r N T S C _ 1 I N
37LD320H 2 0 1 0 . 1 2 . 2 2
T u n e r 26