Read LG 22LD350 (CHASSIS:LA04A) Service Manual online
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.
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
TUNER_RESET
IF_AGC
C5006
100pF
50V
100pF
50V
FE_VMAIN
R5009
100
100
+3.3V_TU
R5001
0
OPT
C5003
0.1uF
16V
16V
L5003
BLM18PG121SN1D
+3.3V_Normal
+3.3V_TU
C5024
0.1uF
16V
C5018
22uF
16V
OPT
22uF
16V
OPT
+1.26V
+5V_TU
IF_N_MSTAR
Q5005
ISA1530AC1
TU_CVBS_BUFER
E
B
C
+3.3V_TU
+3.3V_TU
C5010
0.1uF
16V
C5007
0.1uF
16V
16V
FE_TUNER_SDA
R5027
1K
OPT
R5015
100
L5002
BLM18PG121SN1D
5V_TU_Normal
R5003
0
R5018
3.3K
3.3K
C5021
0.1uF
16V
16V
R5025
4.7K
4.7K
R5026
1K
OPT
R5011
100K
C5022
0.1uF
16V
16V
C5025
100pF
50V
R5002
0
OPT
C5001
100pF
50V
100pF
50V
+3.3V_TU
R5022
1K
1K
C5016
0.1uF
16V
0.1uF
16V
C5023
0.1uF
16V
0.1uF
16V
R5032
82
82
+5V_TU
C5017
22uF
16V
OPT
22uF
16V
OPT
FE_SIF
Q5004
ISA1530AC1
E
B
C
C5020
22uF
16V
22uF
16V
R5016
100
C5019
22uF
16V
22uF
16V
IF_P_MSTAR
R5023
0
FE_TUNER_SCL
+5V_TU
+5V_Normal
R5020
3.3K
3.3K
+1.26V
R5033
1
C5028
0.1uF
16V
0.1uF
16V
C5029
10uF
10V
10uF
10V
R5034
0
R5035
0
C5004
82pF
50V
INNOTEK
L5000
INNOTEK
VCOMO
C5000
0.047uF
50V
R5000
10K
OPT
OPT
R5004
0
1/16W
5%
TU_CVBS_BUFER
R5005
2.2K
2.2K
OPT
C5005
0.1uF
OPT
R5006
47
OPT
SIFMO
R5007
5.6K
1/16W
5%
OPT
VSB_RESET
R9823
0
0
R9824
0
0
OPT
R5029
470
1608
TU5001
TDVJ-H001F
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
+5V_USB
L5004
BLM18PG121SN1D
5V_TU_USB
IC5001
AP1117EG-13
ADJ/GND
OUT
IN
R5008
120
C5002
22uF
10V
22uF
10V
R5030
220
2012
TU_CVBS_BUFER
R5031
220
2012
TU_CVBS_BUFER
R5010
100K
OPT
C5012
47pF
50V
47pF
50V
C5013
47pF
50V
47pF
50V
R5024
0
TU_CVBS_BUFER
R5012
0
0
TU_CVBS_BYPASS
ATSC_CAN TUNER
Close to the tuner
200mA
should be guarded by ground
LGIT CAN H/N TUNER for US
60mA
26
LD350
09.09.03
MStar Option
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