LG 32LB520B Service Manual page 21

5
Silicon TUNER
+3.3V_TU
C98
47nF/0402/16V/NC
P12
1
9
GND
1 GND
2 8
RF1 RF2
3 7
GND GND
C100
120pF/0402/50V/NC
D
PE42750DS/NC
U9
P13
1
D11
C101
ESD
120pF/0402/50V
RCA1_6
CON3
3
4
5 1
6
7
2
+3.3V_TU
C166 C167 C168
1nF/0402/16V
16
1nF/0402/16V
17
1nF/0402/16V
18
19
C
DIF IN&OUT
B
C120
100pF/0402/16V
IF-IN-
L9 0R/0603/5% L10 0R/0603/5%
C122 C123 R164
BPF_IN
33pF/0402/16V/NC
56pF/0402/16V
510R/0402/5%/NC
IF-IN+
L11 0R/0603/5% L12 0R/0603/5%
C132
100pF/0402/16V
A
5
4
R153
100R/0402/5%/NC
C99
0.1uF/0402/16V/NC
1nF/0402/16V
C174 L28
270nH/0603/ 5%
47pF/0402/16V
C172 C173 91pF/0402/16V
R157
R158
L22 L23
0R/0402/5%
0R/0402/5%
270nH/0603/ 5%
180nH/0603/ 5% L25
270nH/0603/ 5%
C183
180pF/0402/16V
+1.8V_TU
R165
C169
IF_AGC
C170 C171
C133
100R/0402/5%
1nF/0402/16V
0.1uF/0402/16V
1nF/0402/16V
1nF/0402/16V
Close Tuner
AGC RC Filter &I2C
+3.3V_Normal
10K/0402/5% R160
10K/0402/5% R161
VIFM
IFN
C121
0.1uF/0402/16V
SDA-T
R162 100R/0402/5%
SCL-T R163 100R/0402/5%
VIFP
IFP
C124 C125
C126
0.1uF/0402/16V
20pF/0402/16V/NC
20pF/0402/16V/NC
Close MSD IC
4
3
+3.3V_TU
L27
600R/0402/500mA
24 MHz /ESR< 120 , CL=8pF
2158 FOR LOW SINGER WATER WAVE
22pF/0402/16V
2157 CAN CANCLE
22pF/0402/16V Y2
C180 C181
close 20pin
C177 C178 C179
24MHz
68pF/0402/16V
68pF/0402/16V 0.1uF/0402/16V
22
RF_REF
L26 270nH/0603/ 5%
C175 180pF/0402/16V 23
RF_IP ALIF_P
C176 180pF/0402/16V 24
RF_IN ALIF_N
L29
270nH/0603/ 5% 25
RF_SHIELD DLIF_P
Si2158
26
ADDR
U10
27
RSTB DLIF_N
28
AGC1
29
GND_EPAD
IFAGC-T
IFAGC-T
R206 R202 R201
0R/0402/5% 0R/0402/5%
0R/0402/5%
TUNER POWER
U11
ASM1117-3.3_1A
+5V_Normal
TUNER_SDA
C130
TUNER_SCL
C127
10uF/0805/16V
3
2
+3.3V_TU
R205
3.3R/0402/1%
1 Q16
3906 +1.8V_TU
C182
2.2uF/0402/16V
14 +1.8V_TU
+1.8V
13 R203 100R/0402/5% IF-IN+
12 R204 100R/0402/5% IF-IN-
11
10
+3.3V_TU
+3.3V
9
8 +1.8V_TU
+1.8V
+3.3V_TU
C131
2
1
D
C
B
A
Title Title Title
MSD3393 MSD3393 MSD3393
Size Size Size Document Number Document Number Document Number Rev Rev Rev
Tuner Tuner Tuner 1.0 1.0 1.0
C C C
Date: Date: Date: Wednesday, May 14, 2014 Wednesday, May 14, 2014 Wednesday, May 14, 2014 Sheet Sheet Sheet 8 8 8 of of of 9 9 9
1