LG 32LD350 Service Manual page 28

TU5001
TDVJ-H001F
ANT_PWR[OPT]
1
BST_CNTL
2
+B
3
R5001
NC[RF_AGC]
4
AS
5
SCL
6
SDA
7
NC(IF_TP)
8
SIF
9
NC
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.
LGIT CAN H/N TUNER for US
R5002
0
OPT
+5V_TU
C5003
C5001
0
0.1uF
100pF
16V
50V
OPT
+3.3V_TU
+1.26V
C5006
C5007
100pF
0.1uF
50V
16V
0
R5003
+3.3V_TU
+3.3V_TU
R5018
3.3K R5020
100 R5015 3.3K
FE_TUNER_SCL
100 R5016
FE_TUNER_SDA
C5012 C5013
47pF 47pF
50V 50V
+3.3V_TU
R5011
R5009 R9823
100K
100 0
TUNER_RESET
C5010 R9824
0.1uF 0
16V VSB_RESET
OPT
R5010
100K
OPT
C5016
0
R5034 0.1uF
IF_N_MSTAR
16V
R5035 0
IF_P_MSTAR
Close to the tuner
+1.26V
IC5001
AP1117EG-13
IN OUT
ADJ/GND
C5002 C5029 C5028
22uF 10uF 0.1uF
10V 10V 16V
1
R5033
C5025
100pF 50V
R5005
2.2K
OPT
0.1uF
R5006
C5005
47
OPT
OPT
R5023 0
TU_CVBS_BUFER
R5000
C5000
10K
0.047uF
OPT 50V
R5022
TU_CVBS_BYPASS
1K
IF_AGC
VCOMO
should be guarded by ground
MStar Option
+5V_USB
L5004
BLM18PG121SN1D
5V_TU_USB
+5V_Normal
+5V_TU
5V_TU_Normal
200mA
L5002
BLM18PG121SN1D
C5018 C5019 C5021 C5023
0.1uF
22uF 22uF 0.1uF
16V
16V 16V 16V
OPT
+3.3V_TU +3.3V_Normal
60mA
L5003
BLM18PG121SN1D
C5017 C5020 C5022
C5024
22uF 22uF 0.1uF 0.1uF
16V 16V 16V 16V
OPT
+5V_TU
R5029
470
1608
R5032
82
FE_SIF
E
B
ISA1530AC1
R5025 Q5004
C
4.7K
+5V_TU
SIFMO
TU_CVBS_BUFER
R5030 R5031
220 220
2012 2012
TU_CVBS_BUFER
FE_VMAIN
R5026
1K
OPT
E
0
R5024
L5000
B Q5005
INNOTEK
R5027 ISA1530AC1
C
1K
TU_CVBS_BUFER
OPT
C5004
82pF
50V
INNOTEK
R5012
0
09.09.03
LD350
26
ATSC_CAN TUNER