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LGIT CAN NIM_H/N TUNER for EU
TU3702
TDTJ-S001D
TUNER
close to TUNER
ANT_PWR[OPT]
1
BST_CNTL
2
+B
3
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.
Copyright © 2010 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
close to TUNER
OPT
R3762
0
+5V_TU
C3731
C3701
C3728
10uF
0 . 1 u F
C3704
0 . 1 u F
10V
16V
C3703
16V
0 . 1 u F
OPT
100pF
16V
OPT
50V
C
Q3704
B
2SC3052
R3707
0
OPT
E
OPT
C3702
close to TUNER
0 . 1 u F
16V
+1.2V/+1.8V_TU
+3.3V_TU
OPT
C3708
C3737
C3738
C3705
C3707
100pF
0 . 1 u F
100uF
0 . 1 u F
100pF
50V
16V
16V
16V
50V
0
R3704
c l o s e t o I F l i n e
R3760
0
R3761
0
C l o s e t o t h e t u n e r
OPTION : RF AGC
G P I O m u s t b e a d d e d .
R3754
10K
FE_AGC_SPEED_CTL
+3.3V_TU
IF_AGC_SEL
OPT
R3740
1.2K
R3741
33
R3735
1.2K
33
R3736
C3713
C3711
18pF
18pF
50V
50V
+3.3V_TU
IF_AGC_MAIN
R3733
R3732
100K
100
s h o u l d b e g u a r d e d b y g r o u n d
TUNER_RESET
C3710
0 . 1 u F
16V
IF_N_MSTAR
IF_P_MSTAR
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
+5V_TU
TU_SCL
TU_SDA
R3751
R3752
220
220
TU_CVBS
E
B
R3750
Q3703
1K
ISA1530AC1
C
OPT
+3.3V_TU
IC3703
R2
AZ1117H-ADJTRE1(EH11A)
R3767
+1.2V/+1.8V_TU
10
INPUT
ADJ/GND
3
1
2
OUTPUT
R3768
1.2K
R1
R3703
150
OPT
R3766
1
1/10W
C3729
0 . 1 u F
16V
+5V_Normal
+5V_TU
L3702
200mA
60mA
BLM18PG121SN1D
C3719
C3722
C3724
C3726
22uF
22uF
0 . 1 u F
0 . 1 u F
16V
10V
10V
16V
OPT
EAX62115503
EU/CHINA CAN TUNER
+5V_TU
R3755
470
R3758
82
TU_SIF
E
B
ISA1530AC1
R3753
Q3705
C
4.7K
C3730
10uF
10V
+3.3V_Normal
+3.3V_TU
L3703
BLM18PG121SN1D
C3727
C3725
C3723
0 . 1 u F
0 . 1 u F
22uF
16V
10V
16V
VER 1.0
14
LGE Internal Use Only
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