Haier LE22P600 Service Manual page 49

TUNER
Silicon Tuner
TU101
FB103
NC/300 OHM AGND
1 2 1
ANT-DC
2
VCC
3
SCL_CAN
SCL
4 SDA_CAN
SDA
5
GND
6
C131
CLK_OUT
1uF 10V
7
AIF+
IF_N
8
AIF-
IF_P
9 IF_AGC
IF_AGC
C133
1N 50V
AGND
AGND
BPF_IN
L102
AIF+
1UH
L101
AIF-
1UH
L need Q>15
IF_AGC Control Circuit
Close to Main chip
3.3V_TUNER
R144
10K
TAGC R146
2 TAGC
IF_AGC from IC
0R05 OHM
C140
22NF 25V
AGND
300mA
DGND
+5V_Normal
Tuner3.3V 3
3.3V_TUNER
C127
10uF 10V C128
100N 16V
C132
1N 50V
DGND
AGND
300mA
close Tuner
L103 C134
TUN_IF+
2.2uH 100N 16V
C136 R140
C135
510R
56pF 50V 33PF 50V
C137
L104
TUN_IF-
2.2uH
100N 16V
Close to Tuner
R101
IF_AGC
100R
To tuner
C141
100NF 16V
AGND
IF_AGC trace shielding by GND
Tuner Power 1K_100MHz/400_400MHz
3.3V_TUNER
3.3V_TUNER
U101 FB101
2 1 2
VIN VOUT
1000OHM
C129 C130
+
2.2UF 16V
100UF 16V C101
100N 16V
DGND
DGND DGND DGND
Close to Main chip
T P V ( Top
絬 隔 瓜 絪 腹
Key Component
Date
49
I2C for Tuner
3.3V_TUNER
R141 4.7K
R142 4.7K
close to main chip
TUNER_SCL
Form main chip
TUNER_SDA
Form main chip
Victory Electronics Co . , Ltd. ) OEM MODEL NA
TPV MODEL
GXXXX-M0A-000-0040 NA
PCB NAME 715GXXXX-M0A-000-0040
07. Tuner
Friday , Nov ember 16, 2012 Sheet 7 of
Main Chip <-->
TUN_IF+
2 VIFP
TUN_IF-
2 VIFM
TUN_I2C_SCL
2 TUNER_SCL
TUN_I2C_SDA
2 TUNER_SDA
TP_SYNC[55]
TP_CLK[48]
TP_VALID[51]
TP_DI[54]
IF_CTL[47]
TUNER_SCL
TUNER_SCL 2
TUNER_SDA
TUNER_SDA 2
R143
SCL_CAN
100OHM
C138
NC/100pF 50V
R145
SDA_CAN
AGND
100OHM
C139
NC/100pF 50V
AGND
B
Size
Rev A
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9