T2/S2 Tuner - Philips 22PFT4031/12 Service Manual

Circuit Diagrams and PWB Layouts
10-5-10

T2/S2 Tuner

B10
T2 /S2 Tuner
T2 TUNER
LGTuner with DVB-C/T/T2
co-layout
TU102
8 1
9 TH1 ANT
TH2
10 2
TH3 3.3V
11
TH4
12 3 TUN_SDA
TH5 SDA
13
C203
TH6
4 TUN_SCL
SCL
100NF 16V
5 TUN_DIF-#T2
IF_N
6
TUN_DIF+#T2
IF_P
7
IF_AGC_T R347
IF_AGC
C231 0R05 1/16W
1NF 50V
C132
NC/10PF 50V
TUN_DIF-#T2 C205 100NF 16V R138 TUN_DIF-
0R05 1/16W
C R
TUN_DIF+#T2 C206 100NF 16V R141 TUN_DIF+
0R05 1/16W
C R
C135
NC/10PF 50V
S2 TUNER
LGTuner with DVB-S/S2
TU103
C207
1nF 50V
12 1 TUNER_LNB
TH1 LNB A
13
TH2
14 2
TH3 NC
15
TH4 3
+3V3_VCC_S2
TU3.3V
4 C211
NC
100NF 16V
5 C212
QP Output
100NF 16V
6
C213
IP Output
100NF 16V
7
C214
NC
100NF 16V
8 IF_AGC_S2_TUNER
AGC
9
C262 C263 C210
X-OUT
10
10PF 50V 10PF 50V 1nF 50V
SDA
11
SCL
S2_TUNER_SDA
S2_TUNER_SCL
TDQS-A751F
C261
22PF 50V
TPN16.3E LA 10.
1'st Source : TCL ST42CS-2-E (394GNPALALL32L)
2'nd Source :LGIT TDSY-G430D (394GPASEBIL02G)
+3V3_TUNER
+3V3_TUNER
1 2
120R 1A
C215 FB105
10UF 16V
T2 Tuner IFAGC
T2_IF_AGC
Tuner control I2C
TUN_SDA
TUN_SCL
1'st Source :LG TDQS-A751F (394GPASEBIL05G)
2'nd Source :SAMSUNG DNBU02112IH2 (394GDVBSALL01A)
+3V3_TUNER
FB203
1 2
C209 C208 120R 3A
QN
100NF 16V 10UF 10V
QP
IP
IN
R348
S2_IF_AGC
0R05 1/16W
R342 22R 1/16W 5% TUNER_SDA
TUNER_SCL
R341 22R 1/16W 5%
C260
22PF 50V
EN 67
+5V_SW
AZ1117CH-3.3TRG1
U203
2 3
VOUT VIN
C204 C202 C201
22UF 10V
100NF 16V 10UF 10V
DV33
R202 R201
4K7 1/16W 5%
4K7 1/16W 5%
from scaler
R340 22R 1/16W 5% TUNER_SDA
R346 22R 1/16W 5% TUNER_SCL
C257 C256
22PF 50V
22PF 50V
LNB POWER SUPPLY
C250
100NF 25V
C253 R227 C249 220NF 16V
3.3NF 50V 60.4K 1%
PWR_12V
LNB_EN
R208 10K
DV33
LNB_LINEDROP
R215 10K
R222 10K 13/18V_SW
LINEDROP: 13/18V_SW: LNB_EN:
Low: 13/18V High: 18V Low: disable
High: 14/19V Low: 13V High: enable
back to
2016-Oct-28
div.table
PWR_12V
GPIO
LNB_EN +5V_STB
LNB_EN 11
TU_LNB
TU_LNB 10
DISEQC_OUT +5V_SW
DISEQC_OUT 11
DV33
DV11
DV33SB
GND
Tuner
TUN_DIF-
TUN_DIF- 7
TUN_DIF+
TUN_DIF+ 7
TUNER_SDA
TUNER_SDA 11
TUNER_SCL
Demod
TUNER_SCL 11
T2_IF_AGC
T2_IF_AGC 11
S2_IF_AGC
S2_IF_AGC 11
QN
QN 7 CI_INCLK
QP
QP 7 CI_INVALID
IP
IP 7 CI_INSY NC
IN
IN 7 CI_INDATA7
CI_INDATA6
LNB_LINEDROP
LNB_LINEDROP 7 CI_INDATA5
13/18V_SW
CI_INDATA4
13/18V_SW 7
CI_INDATA3
CI_INDATA2
CI_INDATA1
CI_INDATA0
PWR_12V
D502
L201 10uH
1 2
FB340M
C298 C243 C240 C244
10UF 16V
U202 MP8124GD Z
8 4
AGND PGND
11 3 D504
BY PASS SW
12 5 C246 100NF 25V
FB340M
VDD BST
10 6
COMP VBOOST
2 7
EN VOUT
1
LINEDROP
9
C245 22NF 25V
TCAP
14 13
C297 ZD201 R216 R217
13V/18V EXTM
D503
100NF 25V FB340M
R223 R214
R224
DISEQC_OUT
33 OHM 1/16W
T2 /S2 Tuner
B10
PWR_12V 4,17
+5V_STB 4,6
+5V_SW 4,9,11,16,17,18,19
DV33 4,5,8,10,11,12,14,17,19
DV11 4,12
DV33SB 4,6,10,12,18
GND 4,5,6,7,8,9,10,11,12,14,15,16,17,18,19
CI_INCLK 9
CI_INVALID 9
CI_INSY NC 9
CI_INDATA7 9
CI_INDATA6 9
CI_INDATA5 9
CI_INDATA4 9
CI_INDATA3 9
CI_INDATA2 9
CI_INDATA1 9
CI_INDATA0 9
TUNER_LNB
ZD202 R221
TU_LNB
R225 ZD203
C 2016-06-02
715G8232
20210_512.eps