LG 32LY560M Service Manual page 35

Tuner Block
TU3000
TDJH-H101F
+3.3V_TU
B1[+3.3V]
1
C3001
NC_1
100pF
2
50V
IF_AGC
close to the tuner pin, add,09029
3
SCL
4
SDA
5
IF[P]
R3000
6
IF[N]
7 R3001
NC_2
C3000
8
0.1uF 16V
OPT
NC_3
close to TUNER
9
A1 B1
A1 B1
47
SHIELD
b_LAN Game control JACK
Tuner Power
+3.3V_Normal
+3.3V_TU
Size change
L3001
MLB-201209-0120P-N2
C3012
C3009
C3007 22uF
C3013
0.1uF
22uF
10V 0.1uF
10V 16V
16V
JK3000
MJ-623PT-6-S-SD
MPI_DOUT
MPI_DIN
5V
NC
GND
IR_OUT
7
THE THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
R3005
C3005
0.1uF
16V
C3002
0.1uF
16V
R3003 33
R3002 33
OPT
C3003
C3004
C3006
18pF
18pF
0 20pF
50V
50V
50V
0
Close to the tuner
MPI buffer
POWER LINE
+5V_ST
MPI_DIN
020:AC7
1
BEXT_MPI_DOUT
2
BEXT_MPI_DIN
020:AB7
3
MPI_DOUT
022:AM21
4
5
6
BEXT_IR_MODEM
020:AC7
100
IF_AGC_MAIN
should be guarded by ground
+3.3V_TU
R3010 R3011
1.8K 1.8K
TU_SCL
TU_SDA
OPT
C3008
20pF
50V
R3007
82
TU_SIF
OPT
R3006
0
TU_CVBS
OPT
IF_P_MSTAR
IF_N_MSTAR
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
+5V_ST
R3009
0
1/16W
5%
022:AH22
C
R3017
10K
B
Q3001
E
C3010
220pF
R3018
220
C
R3008
0
B C3011
1/16W 220pF
Q3000
E
5%
R3019
022:AM9
20
IR_IN_MODEM
C3014
220pF
Delete IR buffer
BEXT_MPI_DIN
BEXT_MPI_DOUT
BEXT_IR_MODEM
XXLY670H-UA
B_Lan/MPI Block
2013/08/17
20
LGE Internal Use Only