LG 42LY750H Service Manual page 37

TU6500
TDSS-H101F
NC
1
RESET
2
SCL
3
SDA
4
+B1[3.3V]
5
SIF
6
+B2[1.8V]
7
CVBS
8
IF_AGC
9
DIF[P]
10
DIF[N]
11
B1 A1
B1 A1
12
SHIELD
TU6500-*1
TDSS-H101F(B)
NC_1
1
RESET
2
SCL
3
SDA
4
+B1[3.3V]
5
SIF
6
+B2[1.8]
7
CVBS
8
IF_AGC
9
DIF[P]
10
DIF[N]
11
B1 A1
B1 A1
12
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 ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
C6508 close to TUNER
0.1uF 16V
+3.3V_TU
+1.8V_TU C6512
C6504
C6513 0.1uF
100pF
10uF
L6502 16V
50V
BLM18PG121SN1D 6.3V
OPT
C6503 C6509 C6521
100pF 0.1uF 0.1uF
50V 16V 16V
close to the tuner pin, add,09029
close to TUNER
R6512 100
C6511
close to TUNER
0.1uF
16V
+5V_NORMAL
BLM18PG121SN1D
C6532
0.1uF
16V
R6509 33
R6508 33
C6501
C6502
18pF
18pF
50V
50V
OPT
OPT
+3.3V_TU
R6516 C6514 C6515
R6511 100K
5pF 5pF
100
50V 50V
/TU_RESET
OPT OPT
C6507
0.1uF
16V
MAIN_IF_AGC
should be guarded by ground
150mA(MAX)
+3.3V_NORMAL
+5V_TU
L6501
L6500
BLM18PG121SN1D
C6534
C6536 C6539
22uF
0.1uF
22uF
10V
16V
10V
C6522 C6516
0.1uF 22uF
16V 10V
Close to the tuner OPT
Close to the tuner
+5V_TU
I2C_SCL6
I2C_SDA6 2012 perallel
R6518 R6517
because of derating
220 220
E
R6513 B
Q6501
1K
MMBT3906(NXP)
C
OPT
MAIN_NDIF
MAIN_PDIF
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
465mA(MAX)
+3.3V_TU
+3.3V_TU IC6500
AZ1117BH-1.8TRE1
IN OUT
3 2
1
C6506
ADJ/GND
OPT 0.1uF
16V
C6517 C6510
22uF 0.1uF
10V 16V
xxLY750H-UA
TUNER
+5V_TU
R6519
470
R6510
82
TUNER_SIF
E
MMBT3906(NXP)
B
Q6502
C
R6520
4.7K
TU_CVBS
Max 240mA
+1.8V_TU
R6507
1
1/16W
C6520 C6505
10uF 0.1uF
16V
10V
2013.12.24
12 21
LGE Internal Use Only