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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 © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
TU_ALL
R6501
0
1
+3.3V_LNA_TU
C6500
0.1uF
TU_ALL
Removed RF Switch(2Pin)
2
3
IF_AGC_TU
4
I2C_SCL2_TU
5
I2C_SDA2_TU
6
IF_P_TU
7
IF_N_TU
8
TU_SIF_TU
9
TU_CVBS_TU
10
11
+3.3V_TU
12
FE_DEMOD1_TS_ERROR
14
FE_DEMOD1_TS_CLK
15
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
16
17
FE_DEMOD1_TS_DATA[0]
18
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[2]
19
20
FE_DEMOD1_TS_DATA[3]
21
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[5]
22
23
FE_DEMOD1_TS_DATA[6]
24
FE_DEMOD1_TS_DATA[7]
25
/TU_RESET1_TU
26
+3.3V_DEMOD_TU
27
I2C_SCL4_TU
28
29
LNB_TX
30
I2C_SDA4_TU
31
LNB_OUT
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
close to Tuner
Signal to Signal Width = 12mils
+3.3V_TUNER
close to Tuner
TU_ALL_IntDemod
R6506
10K
IF_AGC
TU_ALL_IntDemod
C6502
0.047uF
25V
TU_W_BR/TW
TU_ALL
R6513-*1
R6513
200
33
I2C_SCL2
C6507
I2C_SDA2
R6514-*1
47pF
200
R6514
50V
33
TU_W_BR/TW
C6503
TU_ALL
TU_ALL
47pF
50V
TU_ALL
R6502
10
IF_P
C6504
TU_ALL_IntDemod
33pF
should be guarded by ground,Match GND VIA
R6503
10
TU_ALL_IntDemod
IF_N
C6505
TU_ALL_IntDemod
33pF
TU_ALL_IntDemod
+3.3V_TUNER
TU_M/W
R6504
0
C6509
0.1uF
TU_M/W
close to Tuner
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_DATA[0]
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[2]
FE_DEMOD1_TS_DATA[3]
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[5]
FE_DEMOD1_TS_DATA[6]
FE_DEMOD1_TS_DATA[7]
TU_M/W
R6505
TU_M/W
100
/TU_RESET1
+3.3V_TUNER
C6508
16V
TU_M/W
R6507
0.1uF
TU_M/W
0
C6510
0.1uF
R6509
33
I2C_SCL4
TU_M/W
OPT
C6512
18pF
50V
OPT
R6508
33
LNB_TX
I2C_SDA4
C6511
TU_M/W
18pF
50V
LNB_OUT
+3.3V_NORMAL
+3.3V_TUNER
Ground Width >= 24mils
TU_ALL
C6501
22uF
10V
85C
+3.3V_TUNER
1608 perallel
because of derating
TU_ALL_2178B
C6513
TU_ALL_2178B
TU_SIF_TU
0.1uF
TU_ALL_2178B
R6510
R6511
16V
200
200
TU_CVBS
E
CVBS_TR_NXP
E
B
Q6500
CVBS_TR_KEC
MMBT3906(NXP)
C
Q6500-*1
B
2N3906S-RTK
C
A5LR_Bring_Up
TUNER_1
FE_DEMOD1_TS_ERROR
TU_SIF_TU
2014.11.01
65
LGE Internal Use Only
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