Philips 32PF9968/10 Service Manual page 56

Circuit Diagrams and PWB Layouts
SSB: Channel Decoder DVB-T
2T01 A8 2T08 D9 2T14 D12 2T19 E8 2T25 B7 2T29 H5
2T04 C8 2T09 D9 2T15 D12 2T20 E6 2T26 D4 2T31 D2
2T05 C8 2T12 D11 2T16 D11 2T21 E6 2T27 B8 2T32 A8
2T07 D8 2T13 D11 2T18 E8 2T24 F6 2T28 H5 2T35 D9
1 2 3
CHANNEL DECODER DVB-T
B03B
A
B
IT11
9T20
C
RES
IT42
3T19
TUN-AGC
100K RES
4
FT42 3T13 IT15
TUN-AGC-MON BC847BPN
5 7T18-2
100K
3
D
IT26 3T16
1K0
AGC-COMP
RESET-SYSTE M
E
TDA-IF-AGC
4-MHz
F
SDA-SSB
SCL-SSB
G
TDA-IF-IN-P
H
TDA-IF-IN-N
I
3139 123 6341.1
1 2 3
Q522.1E LA 7.
2T36 D9 3T06 D8 3T10 E7 3T16 D3 3T17-4 F11 3T21 D3 3T22-4 F11
3T01 H4 3T07 G8 3T11 E7 3T17-1 F11 3T18 G8 3T22-1 G11 3T23 H9
3T02 H4 3T08 E7 3T13 D2 3T17-2 F11 3T19 C2 3T22-2 G11 3T26 G6
3T05 E11 3T09 E7 3T14 D4 3T17-3 F11 3T20 B7 3T22-3 F11 3T27-1 G12
4 5 6
+1V2-PNX8541
+3V3
+3V3DVB
IT22
6
IT27
2
7T18-1
BC847BPN
1
2T24
FT41
100n
IT32
3T26
IT31
100R
3T28
100R
9T01
3T01 RES 2T28
330R 100n
3T02 RES 2T29
330R
100n
9T02
4 5 6
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56
3T27-2 F12 3T30 G8 3T34 H9 7T17-2 H10 9T01 H5 FT11 B8
3T27-3 G12 3T31 H8 5T08 B8 7T18-1 D4 9T02 H5 FT15 A8
3T28 G6 3T32 G13 5T09 A8 7T18-2 D3 9T03 G9 FT17 G9
3T29 G8 3T33 G13 7T17-1 E9 7T25 A8 9T20 C3 FT36 G9
7 8 9
IT41
5T09 FT15
+1V2DVB
120R
7T25
RES
LD3985M122
1 5
IN OUT
IT24 IT25
3T20
3 4
INH BP
100K
COM
IT03 5T08 FT11
+3V3DVB
120R
+5V-TUN +5V-TUN
IT07
IT08
3T10
18K
3T11
4K7
7T17-1
IT18
7
XIN
FT40
8
XOUT
41
CLR
33
SADDR
35
SCL
34 I2C ADDRESS 10
SDA
39
TCK
38
FT17 TDI
JTAG-TD-TDA10048-TDA10023 40
TDO
37
10K TMS
36
+3V3DVB TRST
3T18
2
RES
M
3 VI
P
FT36
JTAG-TCK
FT37
JTAG-TD-PACIFIC-TDA10048
FT38
JTAG-TM S
FT39
JTAG-TRST IT33
7T17-2
TDA10048HN
IT45
50
51
52 VIA
53
7 8 9
FT37 G9 FT41 F4 IT08 E7 IT17 H12 IT25 B8 IT32 F6
FT38 H9 FT42 D2 IT11 C3 IT18 F8 IT26 D3 IT33 H10
FT39 H9 IT03 B7 IT15 D3 IT22 D4 IT27 D3 IT41 A7
FT40 F9 IT07 D9 IT16 H12 IT24 B8 IT31 G6 IT42 C2
10 11 12 13
TDA-IF-AGC-SPLIT
42
AGC_IF IT43
43
AGC_TUN
0R
18 3T27-2 FE-VALID
DEN
MAIN
TDA10048HN 32 AGC-COMP
20 3T17-4 4 5 0R FE-DATA0
0
21 3T17-3 3 6 0R FE-DATA1
1
22 3T17-2 2 7 0R FE-DATA2
2
23 3T17-1 1 8 0R FE-DATA3
3
DO 24 3T22-4 4 5 0R FE-DATA4
4
25 3T22-3 3 6 0R FE-DATA5
5
26 3T22-2 2 7 0R FE-DATA6
6
27 3T22-1 1 8 0R FE-DATA7
7
GPIO<0:3>
3T27-1 1 0R
19 8 FE-CLK
OCLK
3T27-3 0R
17 FE-SOP
PSYNC
16
SCL
TUN 15
+3V3DVB
SDA
IT16
SCL-TUNER
IT17
SDA-TUNER
VIA
61
60
VIA
VIA 59
58
VIA
10 11 12 13
IT43 F11
IT45 H9
14
B03B
A
B
C
D
E
F
G
H
I
H_17650_005.eps
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