B08 393912364954 - Philips Q552.2E Service Manual

Circuit Diagrams and PWB Layouts

10-11 B08 393912364954

DVBS supply
DVBS supply
B08A
+5V-DVBS
+3V3-DVBS
+5V-DVBS
+5V-DVBS
+3V3
6T05 IT22
+24V
BZX384-C
13V
+5V-DVBS
Q552.2E LA 10.
5T00
IT00
30R
7T00-1
1
ST1S10PH
2
+2V5-DVBS
INH
5
SYNC
A
4
7T00-2
13
ST1S10PH
10
IT20
3T03
47K
LD3985M25
6T00 RES
6T01 RES 6T02 RES IT03
1
N I
BAS316
BAS316 BAS316
3
INH
5T02
LD1117DT33
3
IN
IT04
2T13
3T04
3R3 47n
IT05
FT00 5T03
33u
7T03
TPS54283PWP
PVDD1
IT06 IT25
2
BOOT1
3
SW1
5
EN1
7
FB1
9
ILIM2
10
IT07 SEQ
+24V
11
BP
IT27
IT08
6 GND
IT21
3T07
2 7T04-1
BC847BS(COL)
10K
1
3T08
IT17
3
3T14
5
7T04-2
BC847BS(COL)
2K2 IT23
4
IT15
2T31 RES
22n
3T20
18K
5%
IT16
FT05
EN 132
6
IT01 5T01 IT18 FT06
7
SW
VIN
2u0
3
VFB
GND
P H S
8 9
3T00 RES
1 K 0 1 %
2T10 RES
IT02
15
4n7
2T36 IT24
VIA 12
4n7
3T21
14
1K0 1%
7T01
FT07
5
O U T
IT19
4
BP
COM
7T02
FT08
2
OUT
COM
1
+24V
IT10
2T20
3T10
Φ PVDD2
IT26
47n 3R3
13
IT09
BOOT2 5T04
1 2
SW2
6
IT32
EN2 33u
8
FB2
16
17
18
IT11
19
20
21
22
VIA2
23
24
IT12
25
26
GND_HS
3T29
IT29
3T23
IT13
33K
RES
2T28 FT04
22n
3T12
47K
5%
IT14 RES
RES
back to
2011-Jun-01
div. table
+1V-DVBS
SENSE+1V0-DVBS
+2V5-DVBS
+3V3-DVBS
+V-LNB
2T41
1n0
+V-LNB
3T24
SENSE+1V0-DVBS
15K
3T25
V0-CTRL
330K
2T42 IT30
3T28
10n 100K
RES
RES
3T26
RES 10K
SPB SSB TV550
2K11 4DDR EU
B08A
4 2010-12-10
3139 123 6495
19100_040_110210.eps
110210