Global Tuner Block Kr & Aj Diagram - LG 55LB5610 Service Manual

GLOBAL tuner block KR & AJ
TU_AJ_T/C
TU1601-*1
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 © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
TU_ATSC
TU1601
+3.3V_TU
TDJH-H101F
B1[+3.3V]
1
NC_1
C1615 C1616
2
100pF 0.1uF
50V 16V
IF_AGC
3
close to the tuner pin, add,09029
SCL
4
SDA
5
IF[P]
6 R1605 0
IF_NON_FILTER_KR
IF[N]
R1606 0
7
IF_NON_FILTER_KR
NC_2
C1601
8 Close to the tuner
0.1uF 16V
OPT
NC_3
close to TUNER
9
A1 B1
A1 B1
47
SHIELD
GND seperation for ASIS tuner
R1609 100
should be guarded by ground
C1611
0.1uF
16V
R1610-*1
1K
TU_IIC_NON_ATSC_1K
+3.3V_TU
R1611-*1
1K
TU_IIC_NON_ATSC_1K
R1610 R1611
1.8K 1.8K
TU_IIC_ATSC_1.8K TU_IIC_ATSC_1.8K
R1607 33
R1608 33
C1610 OPT OPT
C1609 18pF C1613 C1614
18pF 50V 20pF 20pF
IF_FILTER_AJ
50V 50V 50V
R1605-*1
10
IF_FILTER_AJ
R1606-*1
10
R1612
82
OPT
R1613
0
OPT
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
FE_TS_SYNC
FE_TS_VAL_ERR
FE_TS_CLK
FE_TS_DATA[0]
+3.3V_Normal
+3.3V_TU
IF_AGC_MAIN
Size change,0929
L1600
UBW2012-121F
C1603 C1605
C1602
0.1uF 22uF
22uF
16V 6.3V
6.3V
CHANGE TO CHANGE TO
6.3V 2012 X5R 6.3V 2012 X5R
TU_SCL
TU_SDA
TU_SIF
TU_CVBS
IF_P_MSTAR
IF_N_MSTAR
L14_M1A
TUNER_KR_AJ
FE_AGC_SPEED_CTL
IF_AGC_SEL
TUNER_RESET
RF_SWITCH_CTL
C1607
0.1uF
16V
2013/06/05
16
LGE Internal Use Only