Philips 42PF9731D Service Manual page 83

Circuit Diagrams and PWB Layouts
SSB: Main Tuner & OOB Tuner
1T04 A2 2T02 D3 2T07 G7 2T11 D2 2T15 G5 2T19 H7 2T24 B6
1T41 C6 2T04 C7 2T08 A7 2T12 F7 2T16 H6 2T20 B3 2T25 B6
1T44 G9 2T05 F5 2T09 B2 2T13 B2 2T17 A5 2T21 H6 2T27 H5
2T01 B2 2T06 F5 2T10 F6 2T14 G6 2T18 A6 2T23 H5 2T28 G7
1 2
MAIN TUNER + OOB TUNER
B2B
MAIN DIG TUNER C0
1T04
TD1316O/FGHP
TUNER
A
18
19
IT27
B
FT08
C
IT04 IT05
D
E
F
G
H
3104 313 6145.2
1 2
BJ2.4U/BJ2.5U LA 7.
2T35 B2 2T51 C8 3T02 D3 3T06 C7 3T10 C2 3T25 H4 5T46 G8
2T43 B9 2T53 C10 3T03 F5 3T07 C7 3T11 C3 5T42 C5 5T47 F6
2T45 C8 2T58 B3 3T04 F5 3T08 F5 3T12 B4 5T44 G9 5T48 F7
2T48 C10 2T98 D8 3T05 F5 3T09 B4 3T13 B4 5T45 B3 5T49 B2
3 4 5
LD1117DT
IT00
3
+8V6-SW IN
17
+5VTUN
16
5T50 5T51
IT06
+5V
IT09 IT26
3T12
7T12
BC847BW
4K7
FT01
AT56
1T41
1
I
14
IGND
AT57
2
6
GND
11
X7351P
44M
FT04
IT01 IT02
UPC3220GR
IT30 2T14
2T15 10n IT03
10n 2T16 AT48
2T27 10n
AT49
10n 2T21
2T23 10n
10n
3 4 5
83
5T50 B5 7T12 B4 AT41 C7 AT46 G8 AT51 C10 FT01 B3 FT05 F6
5T51 B6 7T41 C8 AT43 C7 AT47 H8 AT52 C10 FT02 F6 FT06 D2
5T53 C7 7T43 G6 AT44 G10 AT48 H6 AT56 C5 FT03 G7 FT07 A7
7T00 A6 9T04 B8 AT45 H10 AT49 H6 AT57 C5 FT04 D3 FT08 B2
6 7 8
7T00
FT07
2
OUT +5VTUN
COM
1
+5VTUN
IT25
+5V-OOB
2T45
AT41
7T41
10n
UPC3218GV
2 INPUT1
7
O 2T51
8
OGND
3
AT43 10n
INPUT2
4
FT09
9
GND 3T06
13 4 VAGC
AGC CONTROL
1K0
+5V-OOB
+5V-OOB
IT07 IT08
FT02
FT05
FT03
7T43
Φ
VAGC
VCC
CATV
OUT OF BAND 2T28 AT46
1 15
1 1
TUNER
AGCIN 10n
2 1
2 MIXOUT I
14
2T19 AT47 IGND
5 16
1 2
2
OSCIN 10n
6 10 6
2 1 GND
11
13
1 AMPOUT
X7351P
AMPIN
12 9
2 2
GND
6 7 8
FT09 C8 IT02 F5 IT06 B3 IT25 B6 IT29 B3
FT41 B8 IT03 G6 IT07 F8 IT26 B4 IT30 G5
IT00 A6 IT04 D2 IT08 F8 IT27 B2
IT01 F5 IT05 D3 IT09 B4 IT28 B2
9 10 11
AT51
2T48
OUTPUT1 7 FAT-ADC-INP-MAIN
10n
2T53 AT52
6
FAT-ADC-INN-MAIN
OUTPUT2
10n
AT44
5T44
1T44
7
O AT45
8
OGND
4
9
GND
13
44M
9 10 11
12 13
B2B
A
B
C
D
E
F
G
H
G_15930_061.eps
130606
12 13