10.
Circuit Diagrams and PWB Layouts
10-4-10
Tuner/Demod
20140_509.eps
Tuner/Demod
B10
B10
2016-5-25
C
715G7853
Tuner/Demod
+3.3V_T2
MAIN3V3
C239
10uF 16V
MAIN3V3
C240
100N
16V
+1.2V_T2
C241
10
u
F 1
6
V
U204
AZ1117CD-1.2TRG1
ADJ/GND
1
OUTPUT
2
INPUT
3
Deomd Power
+3.3VA_T2
MAIN3V3
FB204
120R 3A
1
2
IFAGC SWITCH
R245
100OHM
IF_AGC_T
R246
10K
TUN_IF_AGC
R241
0R05 1/16W
MAIN3V3
C255
100N 16V
R244
100K 1%
TUN_DIF-
7
R231
22R 1/16W 5%
7
LG TDQS-A751F
394GPASEBIL05G
2nd
394GDVBSALL01A
1st
Samsung DNBU02112IH2
C202
NC/10PF 50V
IF_AGC
7
CH_START
9
CH_VALID
9
CH_DATA1
9
CH_CLK
9
CH_DATA0
9
CH_DATA4
9
CH_DATA3
9
CH_DATA2
9
CH_DATA7
9
CH_DATA6
9
CH_DATA5
9
C222 100N 16V
IP
C227 100N 16V
R323
51R
R326
51R
QP
C205
NC/10PF 50V
TUN_D+_DEMOD
C242
100N
16V
C243
10
u
F 1
6
V
IF_AGC_T
PWR_12V
R293
NC/33 OHM 1/16W
MAIN3V3
C2
4
6
NC/2
2
N 2
5
V
C2
4
5
NC/1
0
u
F
3
5V
C2
5
1
NC/1
0
u
F
3
5V
MAIN3V3
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
R
3
02
N
C
/10K 1/
16W
5
%
R
3
01
N
C
/100K 1/
16W
5
%
R2
8
6
N
C
/10K 1/
16W
5
%
R2
9
8
N
C
/100K 1/
16W
5
%
TUN_LNB
10
R2
9
5
N
C
/100K 1/
16W
5
%
R2
9
9
N
C
/10K 1/
16W
5
%
LNB_LINEDROP
ZD203
NC/P
J
S
D
24C
W
1
2
U202
NC/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
L201
NC/10uH
R287
NC/60.4K 1%
ZD2
0
2
NC/P
J
S
D2
4
CW
1
2
R2
88
N
C
/100K 1
%
R216
1K5 1/16W 5%
C211
6
8
P 50V
R217
1K5 1/16W 5%
LNB_LINEDROP
TUNER_LNB
C249 NC/220NF 16V
C253
NC/3.3NF 50V
C250
NC/100NF 25V
R2
9
4
NC/2
.2
K
1
/4
W
R2
9
6
NC/2
.2
K
1
/4
W
LNB POWER SUPPLY
D202
NC/FB340M
1
2
ZD2
0
1
NC/P
J
S
D2
4
CW
1
2
C203
NC/10PF 50V
D2
0
3
NC/FB
3
40M
1
2
D201
NC/FB340M
1
2
C252
NC/100NF 25V
C2
9
7
NC/1
0
0
NF 2
5
V
C298
NC/10UF 16V
R292
NC/5.1K 1%
R291
NC/33K 1%
13/18V_SW
C2
4
4
NC/1
0
u
F
3
5V
LNB_EN
7
LNB_EN
DISEQC_OUT
T2 Demod : 356G0575048607
S2 Demod : 356G0575048606
C210
1N 50V
T2_DEMOD_RSTn 12
QP
K model : Samsung DNBU02112IH2
R303
NC/22R 1/16W 5%
S2_TUN_SDA
R304
NC/2K7
MAIN3V3
S2_TUN_SCL
R305
NC/22R 1/16W 5%
C254
NC/33P50V
R306
NC/2K7
C256
NC/33P50V
C217
NC/1
0
0
N 1
6
V
+3V3_TUNER
C218
NC/1
0
UF 6
.3
V
S2 TUNER
LGTuner with DVB-S/S2
C219
NC/1nF 50V
C221
NC/1nF 50V
TU103
NC/TDQS-A751F
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
R219
22R 1/16W 5%
13/18V_SW
DISEQC_OUT
C231
100N 16V
TUNER_SDA 12
TUNER_LNB
TUNER_SCL 12
LINEDROP:
Low: 13.3/18.3V
High: 14.3/19.3V
Compensation Selection
13/18V_SW:
High: 18V
Low: 13V
LNB_EN:
Low: disable
High: enable
MP8124 Enable Selection
R242
0R05 1/16W
SCL_DEMOD
12
SDA_DEMOD
12
R229
1K5 1/
16W
5
%
394GNPALALL35A
2nd
394GNPALALL32L
1st
MAIN3V3
R228
1K5 1/
16W
5
%
C228
NC/1
0
P
F 5
0
V
C257
NC/1
0
P
F 5
0
V
Grounding
C201
NC/10PF 50V
Grounding
R315
4K7 1/16W 5%
C258
100N
16V
C259
N
C
\100N
F
16V
IF_AGC_S2_TUNER
R243
NC/0R05 1/16W
C204
NC/150pF 50V
C212
6
8
P 50V
TUN_DIF-#T2
#T2
T/T2 TUNER
Grounding
C234
100N 16V
#T2
R218
22R 1/16W 5%
TUN_DIF-#T2
C235
120pF
50V
C208
100N 16V
C
C
ST42CS-2-E
IP
IFAGC_SW
12
TS_T2_DQ7
T
S
_T
2_D
Q6
T
S
_T
2_D
Q5
C215
100N 16V
X201
16MHz
1
2
4
3
R221
22R 1/16W 5%
+1
.2
V
_
T
2
TUN_D-_DEMOD
U201
NT78822
MP_A
1
MP_B
2
GPIO_0
3
NC
4
NC
5
NC
6
VDD_Vcore
7
GND
8
VDD_VIO
9
SCL_Host
10
SDA_Host
11
TS_VLD
12
XTAL_O
32
RESETB
31
MP_D
30
MP_C
29
VDD_Vcore
28
GND
27
TS_ERR/GPIO_1
26
TSD7
25
T
S
_
S
YN
C
1
3
T
S
_C
LK
14
T
S
_D
0/
S
ER
15
T
S
_D
1
16
T
S
_D
2
17
T
S
_D
3
1
8
T
S
_D
4
19
VD
D
_Vc
ore
20
GN
D
21
VD
D
_VI
O
22
T
S
D5
2
3
T
S
D6
24
XTAL_I/CLK_IN
33
ADDR
34
GND
35
VDD_Vana
36
NC
3
7
NC
38
NC
3
9
NC
40
AD
C
_P
41
A
DC_
N
42
NC
4
3
CL
K
_
IN_
O
UT
44
S
DA
_
T
45
S
CL
_
T
46
GN
D
47
V
DD_
V
co
re
4
8
EP
a
d
49
TUN_D+_DEMOD
C220
100N 16V
C213
100N 16V
+1.2V_T2
+3.3VA_T2
+3.3V_T2
+
3
.3
V_T
2
C214
100N 16V
C216
100N 16V
C223
100N 16V
R220
NC/4K7 1/16W 5%
MAIN3V3
+1
.2
V
_
T
2
+1.2V_T2
S
I2166
S
_ADC_QP
S
I2166
S
_ADC_QN
S
I2166
S
_ADC_IP
S
I2166
S
_ADC_IN
C224
100N 16V
SI2166 DISEQC_OUT
DVB/T2 Demodulator
C233 5.6pF 50V
TUN_IF_AGC
C230 5.6pF 50V
CH_VALID
T
S
_T
2_
S
YN
C
CH_START
RP201
22R
1
2
3
4
8
7
6
5
TS_T2_CLK
IF_AGC_S2_TUNER
TS_T2_VAL
TS_T2_SY NC
TS_T2_DQ2
TS_T2_DQ0
TS_T2_DQ7
TS_T2_DQ6
TS_T2_DQ5
TS_T2_DQ4
R227
22R 1/16W 5%
TS_T2_DQ1
TS_T2_DQ3
C247
NC/10PF 50V
R225
22R 1/16W 5%
R226
22R 1/16W 5%
RP202
22R
1
2
3
4
8
7
6
5
C237
100N 16V
T
S
_T
2_C
LK
T
S
_T
2_D
Q1
T
S
_T
2_D
Q0
C238
100N 16V
C226
NC/10PF 50V
C225
NC/10PF 50V
C207
100N
16V
+5V_SW
C206
10
u
F 1
6
V
U203
AZ1117CH-3.3TRG1
AD
J
(GN
D
)
1
VOUT
2
VIN
3
4
4
C209
22uF 6.3V
TS_T2_VAL
R223
4K7 1/16W 5%
C229
100N 16V
T
S
_T
2_D
Q2
C232
100N 16V
T
S
_T
2_D
Q4
T
S
_T
2_D
Q
3
TUN_SDA
TUN_SCL
CH_CLK
C260
100N 16V
TCL ST42CS-2-E
R4162
NC/1K 1/16W 5%
TUN_D-_DEMOD
SAMSUNG DTOS40CIL034B
S
2_T
U
N
_
S
DA
S
2
_
TUN_
S
CL
C236
120pF
50V
C261
100N 16V
ESD & Surge
Protect
+3V3_TUNER
R235
22R 1/16W 5%
Q202
LMBT3906LT1G
1
2
3