Netcast4.0_Eu_Tuner_Block - LG 28LB45 series Service Manual

NETCAST4.0_EU_TUNER_BLOCK

TU2602
TDJH-G101D
B1[+3.3V]
1
NC_1
2
IF_AGC
3
SCL
4
SDA
5
IF[P]
6
IF[N]
7
NC_2
8
NC_3
9
A1 B1
A1 B1
47
SHIELD
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2014 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.3V_TU
C2604
C2603
100pF 0.1uF
50V 16V
+3.3V_TU
IF_AGC_MAIN
C2600
should be guarded by ground
0.1uF
16V
R2604 R2605
1K 1K
R2602 33
C2601 C2605
20pF 20pF
R2603 33
50V 50V
C2602 C2606
20pF 20pF
50V 50V
R2600
10
IF_P_MSTAR
R2601
10
IF_N_MSTAR
GND seperation
+3.3V_TU +3.3V_Normal
L2606
UBW2012-121F
OPT
C2607 C2643
C2644
47uF 22uF 0.1uF
6.3V 6.3V 16V
85C
TU_SCL
TU_SDA
TUNER_EU_ERRC
MA55 2013/05/23
8
LGE Internal Use Only