Circuit Diagrams and PWB Layouts
10.
10-5-10
T2/S2 Tuner
20210_512.eps
T2 /S2 Tuner
B10
B10
2016-06-02
C
715G8232
T2 /S2 Tuner
IP
7
ZD203
NC/P
J
S
D2
4
CW
1
2
C212
100NF 16V
IN
7
DISEQC_OUT
S2_IF_AGC
11
C213
100NF 16V
C214
100NF 16V
1'st Source :LG TDQS-A751F (394GPASEBIL05G)
2'nd Source :SAMSUNG DNBU02112IH2 (394GDVBSALL01A)
1'st Source : TCL ST42CS-2-E (394GNPALALL32L)
2'nd Source :LGIT TDSY-G430D (394GPASEBIL02G)
C215
10UF 16V
C132
NC/10PF 50V
L201
10uH
13/18V_SW
LNB_LINEDROP
C243
10
u
F
3
5V
QP
R348
0R05 1/16W
S2_IF_AGC
C208
10UF 10V
C240
10
u
F
3
5V
TUNER_LNB
DISEQC_OUT 11
R347
0R05 1/16W
S2_TUNER_SDA
T2_IF_AGC
C135
NC/10PF 50V
Tuner control I2C
C205
100NF 16V
R227
60.4K 1%
13/18V_SW
QN
IN
R215
10K
D502
FB340M
1
2
D503
FB340M
1
2
D504
FB340M
1
2
ZD202
NC/P
J
S
D2
4
CW
1
2
R2
1
3
100K
1
%
DISEQC_OUT
C245
22NF 25V
R224
33 OHM 1/16W
TUNER_LNB
R214
N
C
/100K 1/
16W
5
%
LNB_EN
DV33
LNB_LINEDROP
R223
N
C
/100K 1/
16W
5
%
T2 Tuner IFAGC
R208
10K
C249 220NF 16V
R346
22R 1/16W 5%
PWR_12V
PWR_12V
R222
10K
LINEDROP:
Low: 13/18V
High: 14/19V
13/18V_SW:
High: 18V
Low: 13V
C253
3.3NF 50V
LNB POWER SUPPLY
C246
100NF 25V
TU102
ANT
1
3.3V
2
SDA
3
SCL
4
IF_N
5
IF_P
6
IF_AGC
7
TH1
8
TH2
9
TH3
10
TH4
11
TH5
12
TH6
13
C244
10
u
F
3
5V
LNB_EN:
Low: disable
High: enable
+3V3_VCC_S2
C209
100NF 16V
+3V3_TUNER
FB203
120R 3A
1
2
R216
2.
2K 1/
4W
R217
2.
2K 1/
4W
TU103
TH1
12
TH2
13
TH3
14
TH4
15
LNB A
1
NC
2
TU3.3V
3
NC
4
QP Output
5
IP Output
6
NC
7
AGC
8
X-OUT
9
SDA
10
SCL
11
TDQS-A751F
FB105
120R 1A
1
2
+5V_SW
R201
4K7 1/16W 5%
C202
100NF 16V
TUNER_SCL
TUNER_SDA
C256
22PF 50V
TUN_DIF-#T2
TUN_SCL
#T2
R202
4K7 1/16W 5%
T2 TUNER
R141
0R05 1/16W
R138
0R05 1/16W
LNB_LINEDROP 7
DV33
LGTuner with DVB-S/S2
TUN_SDA
S2 TUNER
C231
1NF 50V
+3V3_TUNER
TU_LNB
U203
AZ1117CH-3.3TRG1
A
DJ(
G
ND)
1
VOUT
2
VIN
3
4
4
C257
22PF 50V
R340
22R 1/16W 5%
#T2
IF_AGC_T
TUN_DIF-#T2
C203
100NF 16V
13/18V_SW
7
IF_AGC_S2_TUNER
C201
10UF 10V
C210
1nF 50V
C207
1nF 50V
IP
co-layout
C
C
LGTuner with DVB-C/T/T2
R
R
from scaler
+3V3_TUNER
ZD201
NC/P
J
S
D2
4
CW
1
2
C204
22UF 10V
QP
IP
IN
QN
C250
100NF 25V
TU_LNB
TUN_DIF-
TUN_SDA
TUN_SCL
T2_IF_AGC
S2_IF_AGC
C297
100NF 25V
C206
100NF 16V
C298
10UF 16V
TU_LNB
10
R341
22R 1/16W 5%
R342
22R 1/16W 5%
C261
22PF 50V
S2_TUNER_SCL
C260
22PF 50V
C262
10PF 50V
R221
33
K 1
%
C211
100NF 16V
TUNER_SDA
TUNER_SCL
U202
MP8124GD Z
AGND
8
BY PASS
11
VDD
12
COMP
10
EN
2
LINEDROP
1
TCAP
9
VOUT
7
VBOOST
6
BST
5
SW
3
PGND
4
13V/18V
14
EXTM
13
R225
5.
1K 1
%
C263
10PF 50V
QN
7
PWR_12V
4,17
PWR_12V
Tuner
GPIO
DV33
4,5,8,10,11,12,14,17,19
DV33SB
4,6,10,12,18
+5V_SW
4,9,11,16,17,18,19
GND
4,5,6,7,8,9,10,11,12,14,15,16,17,18,19
+5V_STB
4,6
DV11
4,12
TUN_DIF-
7
TUNER_SCL 11
TUNER_SDA 11
T2_IF_AGC
11
7
TUNER_SCL
TUNER_SDA
TUN_DIF-
+5V_SW
+5V_STB
DV33
DV11
LNB_EN
GND
DV33SB
Demod
LNB_EN
11
CI_INCLK
CI_INDATA0
CI_INDATA2
CI_INDATA1
CI_INSY NC
CI_INVALID
CI_INDATA7
CI_INDATA6
CI_INDATA5
CI_INDATA4
CI_INDATA3
CI_INSY NC
9
CI_INVALID
9
CI_INCLK
9
CI_INDATA3 9
CI_INDATA6 9
CI_INDATA7 9
CI_INDATA2 9
CI_INDATA4 9
CI_INDATA5 9
QP
7
CI_INDATA0 9
CI_INDATA1 9