AOC LE22A1331/61, Service Manual

Page: 48 / 96

48
Silicon Tuner
AIF-
Form main chip
Form main chip
close to main chip
TUNER_SCL
TUNER_SCL
TAGC
IF_AGC
TUNER_SDA
Tuner Power
3.3V_TUNER
300mA
TP_SYNC[55]
L need Q>15
close Tuner
1 2
FB103
NC/300 OHM
Close to Tuner
To tuner
IF_AGC Control Circuit
IF_AGC trace shielding by GND
IF_AGC from IC
1K_100MHz/400_400MHz
Close to Main chip
TAGC 2
IF_AGC
ANT-DC
1
VCC
2
SCL
3
SDA
4
GND
5
CLK_OUT
6
IF_N
7
IF_P
8
IF_AGC
9
TH
1
10
TH
2
11
TH
3
12
TH
4
13
TU101
TUNER
AGND
TUN_IF-
OEM MODEL Size
Rev
Date
Sheet of
TPV MODEL
PCB NAME
称 爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹 A
B
7 9 Friday , Nov ember 16, 2012
< 称爹 >
07. Tuner
TUN_I2C_SDA
TUN_I2C_SCL
R143
100OHM
TUN_IF-
Main Chip <-->
I2C for Tuner
C128
100N 16V
C136
33PF 50V
C141
100NF 16V
L101
1UH
R145
100OHM
L103
2.2uH
C138
NC/100pF 50V
C127
10uF 10V
C137
100N 16V
C133
1N 50V
C134
100N 16V
22NF 25V
C140
C101
100N 16V
1 2
FB101
1000OHM
C132
1N 50V
L104
2.2uH
R141 4.7K
R101
100R
L102
1UH
Close to Main chip
C131
1uF 10V
R140
510R
R144
10K
C130
2.2UF 16V
VIN
3
VOUT
2
GN
D
1
4
4
U101
C135
56pF 50V
R146
0R05 OHM
+
C129
100UF 16V
C139
NC/100pF 50V
R142 4.7K
3.3V_TUNER
AGND
SCL_CAN
SDA_CAN
DGND
DGND
AGND
3.3V_TUNER
AGND
AGND
DGND DGND
3.3V_TUNER
+5V_Normal
AGND AGND
SCL_CAN
DGND
3.3V_TUNER
AGND DGND
VIFM 2
VIFP 2
TUNER_SCL 2
TUNER_SDA 2
TUNER_SDA 2
TUNER_SCL 2
IF_CTL[47]
TP_DI[54]
TP_VALID[51]
TP_CLK[48]
SDA_CAN
AIF+
AIF-
300mA
Tuner3.3V
AIF+
TUNER_SDA
BPF_IN