Haier LE55B7500U Service Manual page 64

ST29WN-20I-E
TU101
260mA (typ)
1
GND
2
Vcc
3
SCL-T
SCL
4
SDA-T
SDA
5
GND
6
NC
R215
7
NC/0R05 1/16W IF-IN+
IF _P
8
IF-IN-
IF_N
9
T_IF-AGC
IF_AGC
CLOSE to Tuner
+3.3V_Normal
To
T_SCL
Tuner
T_SDA
from
M_SCL OSCL0
scaler
9,11,18,20,21 M_SCL
M_SDA OSDA0
9,11,18,20,21 M_SDA
ASIC_3V3
ASIC_1V2
R186 R187
47K NC R188
NC
Demod_RST R189
DBGSEL
100R 1/16W 1%
TSO_CLK
TSO_VLD
TSO_SY NC
I2C address
Write
1000"DBGSEL"000=0X80
+3.3V_Tuner
I2C address
Write
11000000=0XC0
C192
NC
R213
100R 1/16W 1%
C208 VIFM VIFM C191
100N 16V L103
C209 VIFP NC NC
100N 16V
R214
100R 1/16W 1%
C193
NC
CLOSE to Scaler
TSO_D7
TSO_D6
TSO_D5
TSO_D4
TSO_D3
TSO_D2
TSO_D1
TSO_D0
TSO_VLD
TSO_SY NC
TSO_CLK
R179 NC/22R
R180 NC/22R
R139 NC
R141 NC
ASIC_1V2
ASIC_3V3
R181
NC
U103
NC
37 24
VDD12 PWM1
38 23
VDD33 VDD12
39 22
R182
TESTIO20 REF_BIAS_EXT
40 21
C170 NC
VDD33 IVINN
41 20
C171 NC
VDD12 IVINP
42 19
R163 NC
RESETN QVINN
43 18
R162 NC
DBGSEL QVINP
44 17
TEST0 ADVDD_ADC
45 16
TEST1 CLK_REF_OUT
46 15
TSBCLK VDD_OSC
47 14
TSBVLD REFCLKI1
48 13
TSBSY NC REFCLKI0
49
E-PAD
R183
IF_AGC_DM REFCLKI0 1
R185
NC
C169
C173
NC NC
+5V_Normal
ADCINN_DEMOD 6
ADCINP_DEMOD 6
R168 NC TS_D7
TS_D7 8,19
TS_D6
R169 NC
TS_D6 8,19
TS_D5
R170 NC
TS_D5 8,19
TS_D4
R171 NC
TS_D4 8,19
TS_D3
R172 NC
TS_D3 8,19
R173 NC TS_D2
TS_D2 8,19
TS_D1
R174 NC
TS_D1 8,19
R175 NC TS_D0
TS_D0 8,19
TS_VLD
R176 NC
TS_VLD 8,19
R177 NC TS_SY NC
TS_SY NC 8,19
TS_CLK
R178 NC
TS_CLK 8,19
Demod_RST
Demod_RST 9
From
ASIC_1V2
Tuner
NC
VIFM
VIFP
ASIC_3V3
L105 NC
ASIC_3V3
L104 NC
C172
NC
NC
X103
393G022SA1100J
NC
3 REFCLKI1
T P V ( Top
C174
NC
絬 隔 瓜 絪 腹
Key Component
Date
65
FB1404
U707 +3.3V_Tuner
AP1117E33L-13-77
3 2 1 2
VIN VOUT
120R 3A
+3.3V_Tuner
43mA(max)
FB1403
120R 3A
+1.2V_DM
ASIC_3V3
Close to ATBM8878
IF AGC Switch
IF_AGC trace shielding by GND
T_IF-AGC IF_AGC T_IF-AGC
+3.3V_Tuner +3.3V_Tuner
Q103
MMBT3906
R166 R167 R218
2.2K 1%
10K 1%
1K 1/16W 1%
R219 4K7 1%
Q105 Q106
MMBT3904 MMBT3904
AGC RC Filter
IF_AGC_T
R216
6 IF_AGC_T
Close Tuner
TUNER I2C
+3.3V_Tuner
R191 R184
4.7K1/16W 4.7K1/16W
SCL-T
R165 100R 1/16W 1%
SDA-T R164 100R 1/16W 1%
C163 C164
22P 50V 22P 50V
Clos e to Tune r
Victory Electronics Co . , Ltd. ) OEM MODEL
TPV MODEL
17. Tuner , Demod PCB NAME
Friday , May 30, 2014 Sheet 1 of 21
+1.2V_DM
U708
1 5
R733
VIN VOUT
2
NC
GND
3 4
EN NC
NC C746
NC
128.4mA(max)
ASIC_1V2
Close to ATBM8878
IF_AGC_DM
Q104
NC
R220
NC
R217 10K 1%
IF-AGC-SEL 9
Close Tuner
IF_AGC
100R 1/16W 1%
C152
100N 16V
T_SCL
T_SCL 6
T_SDA
T_SDA 6
Size A3
Rev A
< >
称 爹 称爹