LG 32LN52 Series - Netcast4.0_Eu_Tuner_Block

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.
2013/02/05
TUNER_EU_ERRC
85
NC4_S7LRM
IC2603
AP1117E18G-13
OUT
INADJ/GND
C2600
0.1uF
16V
C2643
22uF
10V
+3.3V_TU
TU_SCL
+3.3V_TU
LNA2_CTL
C2607
20pF
50V
C2602
100pF
50V
IF_N_MSTAR
+1.8V_TU
R2614
100K
C2621
100pF
50V
C2641
0.1uF
16V
C2604
0.1uF
16V
+3.3V_TU
C2622
0.1uF
16V
R2609
TU_I2C_NON_FILTER
33
R2610
TU_I2C_NON_FILTER
33
C2612
20pF
50V
R2632
1
C2651
20pF
50V
+1.8V_TU
R2870
1K
R2611
100
C2652
20pF
50V
+3.3V_Normal
TUNER_RESET
C2642
10uF
10V
IF_AGC_MAIN
C2623
0.1uF
16V
IF_AGC_SEL
C2644
0.1uF
16V
R2609-*1
MLG1005SR27JT
TU_I2C_FILTER
TU_SDA
IF_P_MSTAR
+3.3V_TU
+3.3V_TU
R2871
1K
R2610-*1
MLG1005SR27JT
TU_I2C_FILTER
TU_SIF
TU_CVBS
R2601
10
R2602
10
TU2601
TDSS-G501D(B)
5
3.3V
11
DLIF_[N]
2
RESET
10
DLIF_[P]
4
SDA
1
NC_1
9
IF_AGC
8
NC_3
3
SCL
7
1.8V
6
NC_2
12
SHIELD
A1
A1
B1
B1
L2606
UBW2012-121F
C2653
20pF
50V
OPT
NETCAST4.0_EU_TUNER_BLOCK
Close to the tuner
VREF=1.25V
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
Vo=VREF*(1+R2/R1)
should be guarded by ground
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only