Read LG 22LN45XX / 22LN450U / 22LN457U (CHASSIS:LC31A / LD31T) 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.
TUNER_EU
26 12
+3.3V_TU
C2651
20pF
50V
20pF
50V
IF_P_MSTAR
C2626
0.1uF
16V
16V
A_DEMODE
R2609-*1
MLG1005SR27JT
TU_I2C_FILTER
C2602
100pF
50V
100pF
50V
C2603
0.1uF
16V
0.1uF
16V
RF_SW_OPT
IF_AGC_SEL
R2636
2K
NON_A_DEMODE
2K
NON_A_DEMODE
C2627
100uF
16V
16V
OPT
R2614
100K
Q2601
MMBT3906(NXP)
A_DEMODE
E
B
C
C2643
22uF
10V
22uF
10V
+3.3V_TU
TU_SDA
C2621
100pF
50V
100pF
50V
+3.3V_TUNER
C2600
0.1uF
16V
16V
TU_SIF
R2618
470
A_DEMODE
R2603
0
RF_SW_OPT
TU_CVBS
R2611
100
100
C2648
0.1uF
0.1uF
16V
C2623
0.1uF
16V
16V
R2635
680
NON_A_DEMODE
R2870
1K
Q2600
MMBT3906(NXP)
A_DEMODE
E
B
C
R2638
0
A_DEMODE
C2644
0.1uF
16V
16V
C2628
100uF
16V
16V
OPT
R2610
TU_I2C_NON_FILTER
33
C2604
0.1uF
16V
0.1uF
16V
C2622
0.1uF
16V
R2610-*1
MLG1005SR27JT
TU_I2C_FILTER
TU2600
TDSS-G501D
5
3.3V
11
DLIF[N]
2
RESET
10
DLIF_[P]
4
SDA
1
NC
9
IF_AGC
8
ALIF_[P]
3
SCL
7
1.8V
6
ALIF_[N]
12
SHIELD
A1
A1
B1
B1
+3.3V_TU
R2619
82
82
A_DEMODE
R2608
0
C2652
20pF
50V
20pF
50V
TU_SCL
LNA2_CTL
R2616
4.7K
4.7K
A_DEMODE
+1.8V_TUNER
R2602
0
+3.3V_TU
C2624
0.1uF
16V
OPT
C2607
20pF
50V
20pF
50V
TUNER_RESET
IF_AGC_MAIN
+3.3V_TU
RF_SWITCH_CTL
C2646
22uF
10V
22uF
10V
R2601
0
L2606
CIS21J121
R2871
1K
R2637
680
NON_A_DEMODE
NON_A_DEMODE
IF_N_MSTAR
R2625
220
A_DEMODE
+3.3V_TU
R2609
TU_I2C_NON_FILTER
33
C2612
20pF
50V
20pF
50V
DEMOD_RESET
R2624
220
A_DEMODE
This was being applied to the only china demod,
so this has to be deleted in both main and ISDB sheet.
so this has to be deleted in both main and ISDB sheet.
NETCAST4.0 EU(DVB-T/C)_TUNER_BLOCK
should be guarded by ground
Close to TUNER
close to TUNER
NC4_S7LRM
EAX65077401
2012.09.15
12.08.14
diagonal noise improve
diagonal noise improve
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