Tu Circuit - LG 49UF6430 Service Manual

Global F/E Option Name
1. TU
2. Tuner Name = TDJ'H',TDj'M'...
3. Country Name = KR,US,BR,EU ...
Example of Option name
TU_ALL_IntDemod = All Tuner type for Internal demod
TU_M/W = apply TDSM&TDSW Type Tuner
14' Tuner Type for Global
TDJ'H'-G101D : Half NIM for EU,AJJA
TDJ'H'-H101F : Half NIM for US, KR
TDJ'K'-T101F : Half NIM for TW
TDJ'M'-C301D,F : FULL NIM for China
TDJ'M'-B101F : Brazil NIM with Isolater Type
TDJ'M'-K101F : colombia NIM
TDJ'M'-G101D,G105D,G151D : EU Combo&Full NIM
TDJ'M'-H101F,H151F : Korea PIP tuner
TDJ'W'-A151D : AJJA T2 PIP
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
close to Tuner
+3.3V_TUNER
L6500
close to TUNER
PZ1608U121-2R0TF
1
+3.3V_LNA_TU
C6501
0.1uF TU_K/M/W_TW/BR/CO
TU_K/M/W_TW/BR/CO
2
RF_SWITCH_CTL_TU
C6504 R6503
0.1uF 10K
TU_ALL_IntDemod
3 IF_AGC_TU
C6502 close to Tuner
0.1uF
16V
4
I2C_SCL5_TU
C6505
47pF
50V
5
I2C_SDA5_TU
OPT
C6503
47pF
50V
OPT
R6504
10
6 IF_P_TU
TU_ALL_IntDemod
should be guarded by ground,Match GND VIA R6505
10
7
IF_N_TU
TU_ALL_IntDemod
8
TU_SIF_TU
9
TU_CVBS_TU
10
11 +3.3V_TU
close to Tuner
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]
@netLa
19 FE_DEMOD1_TS_DATA[2]
@netLa
@netLa
FE_DEMOD1_TS_DATA[3]
20 FE_DEMOD1_TS_DATA[3]
@netLa
FE_DEMOD1_TS_DATA[4]
21
@netLa
@netLa
FE_DEMOD1_TS_DATA[5] @netLa
22
FE_DEMOD1_TS_DATA[6]
23
24
FE_DEMOD1_TS_DATA[7]
TU_M/W
25
/TU_RESET1_TU
C6507
16V
0.1uF
26 +3.3V_DEMOD_TU
27
I2C_SCL2_TU TU_M/W
L6505
PZ1608U121-2R0TF
28 D_Demod_Core
TU_M/W
C6506
0.1uF
29 LNB_TX LNB_TX
30
I2C_SDA2_TU
31 LNB_OUT
LNB_OUT
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
Ground Width >= 24mils
R6507 1K
TU_K/M/W_TW/BR/CO
RF_SWITCH_CTL
R6506 1K
IF_AGC
TU_ALL_IntDemod
TU_ALL TU_W_BR/TW
AR6500 AR6500-*1
33 200
1/16W 1/16W
I2C_SCL5
I2C_SDA5
+3.3V_TUNER
TU_SIF
TU_ALL_2178B
TU_ALL_2178B
R6516
R6513 0
200
IF_P
C6519
33pF
L6502
OPT
TU_H/M_EU/BR/TW/CO/KR
IF_N
C6520
33pF
TU_H/M_EU/BR/TW/CO/KR B
TU_M_KR/EU // W_ALL
L6501
+3.3V_TUNER
PZ1608U121-2R0TF
C6510
0.1uF
TU_M_KR/EU // W_ALL
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_DATA[0-7]
TU_M/W
R6501
/TU_RESET1 +3.3V_TUNER
100
TU_M/W
L6503
PZ1608U121-2R0TF
C6511
TU_M/W TU_M/W
0.1uF AR6501
33
I2C_SCL2
1/16W
Demod_Core
OPT
C6513
18pF
50V
OPT
I2C_SDA2
C6512
18pF
50V
+3.3V_NORMAL
1608 perallel
because of derating
TU_ALL_2178B
R6517
200
C6517
22uF
TU_CVBS
10V
E
KEC_TU_ALL_2178B_TR
Q6502
2N3906S-RTK
C
E
NXP_TU_ALL_2178B_TR
B Q6502-*1
MMBT3906(NXP)
C
TU_M/W
IC6500
AP2132MP-2.5TRG1
PG
TU_M/W
1
+3.3V_NORMAL C6516
0.1uF
EN
2
VIN
3
2A
VCTRL
+5V_NORMAL
4
ESD_TU_M/W
TU_M/W
ZD6501
C6500
5V
0.1uF
16V
TU_M/W
C6515
1uF
25V
Vout=0.6*(1+R1/R2)
UF64/6800
TU_CIRCUIT
+3.3V_TUNER
C6508
0.1uF
16V
T2 : Max 1.7A
else : Max 0.7A
Demod_Core
[EP]
R2
GND
8
ADJ
7
R1
VOUT
6
NC
5
TU_M/W
C6518
10uF
10V
2014-11-06
65
LGE Internal Use Only