Read LG 42LT560C / 42LT560E (CHASSIS:LA2AC) 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.
0.1uF
16V
C3727
100pF
50V
C3737
IF_AGC_MAIN
100
R3732
0
R3761
10uF
6.3V
C3739
82
R3758
18pF
50V
C3711
0.1uF
16V
C3725
0.1uF
16V
C3708
0.1uF
16V
C3717
4.7K
R3753
+3.3V_TU
10uF
10V
C3741
+3.3V_TU
100K
R3733
22uF
10V
C3715
TU_SDA
+3.3V_TU
0
R3760
0.1uF
16V
C3710
20pF
50V
C3742
OPT
IF_N_MSTAR
IF_P_MSTAR
33
R3735
100pF
50V
C3707
0
R3749
NON_ASIA
0.1uF
16V
C3716
TU_CVBS
MLB-201209-0120P-N2
L3703
0.1uF
16V
C3740
0.1uF
16V
C3738
22uF
10V
C3723
TU_SCL
+3.3V_TU
+1.2V/+1.8V_TU
TUNER_RESET
+1.2V/+1.8V_TU
+3.3V_TU
+3.3V_TU
18pF
50V
C3713
1K
OPT
R3750
0.1uF 16V
C3702
NON_ASIA
33 R3736
+3.3V_TU
TU_SIF
+3.3V_Normal
20pF
50V
C3743
OPT
100
R3704
TDSS-G101D
SI2176_DVB_1INPUT_H
TU3700
5
+3.3V
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+1.8V
6
SIF
12
SHIELD
TDSS-H101F
TU3700-*1
H
_
T
U
P
NI
1
_
C
S
T
A
_
6
7
1
2I
S
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
22uF
25V
C3705
AZ1117BH-1.8TRE1
IC3703
1
ADJ/GND
2
OUT
3 IN
1K
R3741
1K
R3740
470
R3755
1/16W
1
5%
R3766
220
R3752
220
R3751
0
ASIA
R3785
2K
R3782
OPT
OPT
0
ASIA
R3786
0
NON_ASIA R3783
0
OPT
R3756
0
OPT
R3775
TDSS-G201D
TU3700-*2
H
_
T
U
P
NI
1
_
B
V
D
_
6
5
1
2I
S
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC_1
9
IF_AGC
8
NC_3
3
SCL
7
+B2[1.8V]
6
NC_2
12
SHIELD
0
ASIA
C3702-*1
MMBT3906(NXP)
Q3703
E
B
C
MMBT3906(NXP)
Q3705
E
B
C
3 . 3
R3781
ASIA
ASIA
3 . 3
R3780
ASIA
ASIA
5pF
50V
C3750
ASIA
5pF
50V
C3751
ASIA
TUNER_L
20110511
14
GP3_S7LR
GP4R_GLOBAL_TUNER_BLOCK
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
s h o u l d b e g u a r d e d b y g r o u n d
add,0929
close to TUNER
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
S i z e c h a n g e , 0 9 2 9
60mA
C l o s e t o t h e t u n e r
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