Sharp LC-32LE631E Service Manual page 132

LC-32LE631
LC-40LE631
LC-46LE631
10-8 Main Unit (SSB)
DVBS supply
B08A
+5V-DVBS
I I I I
H H H H
+3V3-DVBS
+5V-DVBS
G G G G
F F F F
+5V-DVBS
E E E E
D D D D
C C C C
+24V
BZX384-C
B B B B
+5V-DVBS
A A A A
1 1 1 1 2 2 2 2 3 3 3 3
B08A DVBS supply Schematic Diagram
5T00
IT00
30R
7T00-1
ST1S10PH
2
+2V5-DVBS
5
7T00-2
ST1S10PH
IT20
3T03
47K
6T01 RES 6T00 RES 6T02 RES IT03
BAS316
BAS316 BAS316
5T02
IT04
2T13
3T04
3R3 47n
IT05
FT00 5T03
33u
7T03
TPS54283PWP
IT25
IT06
2
3
5
7
9
10
IT07
+24V
11
IT27
IT08
6
IT21
3T07
2 7T04-1
+3V3
BC847BS(COL)
10K
1
3T08
IT17
3
IT22
6T05 3T14
5 7T04-2
BC847BS(COL)
2K2 IT23
4
13V
IT15
2T31 RES
22n
3T20
18K
5%
IT16
FT05
4 4 4 4 5 5 5 5 6 6 6 6
1 6
IT01 5T01 IT18 FT06
7
INH VIN SW
2u0
3
SYNC VFB
GND
A P HS
4 8 9
3T00 RES
1K0 1%
2T10 RES
IT02
13
15
4n7
2T36 IT24
10 VIA 12
4n7
3T21
14
1K0 1%
LD3985M25
7T01
FT07
1 5
IN OUT
IT19
3 4
INH BP
COM
7T02
LD1117DT33
FT08
3 2
IN OUT
COM
1
+24V
IT10
2T20 3T10
PVDD1 Φ PVDD2
IT26
47n 3R3
1 3
IT09
BOOT1 BOOT2 5T04
1 2
SW1 SW2
6 IT32
EN1 EN2 33u
8
FB1 FB2
16
ILIM2
17
SEQ
18
BP IT11
19
20
21
22
VIA2
23
24
IT12
25
26
GND GND_HS
3T29
IT29
3T23
IT13
33K
RES
2T28 FT04
22n
3T12
47K
5%
IT14 RES
RES
7 7 7 7 8 8 8 8 9 9 9 9 10 10
132
+1V-DVBS
SENSE+1V0-DVBS
+2V5-DVBS
+3V3-DVBS
+V-LNB
2T41
1n0
+V-LNB
3T24
SENSE+1V0-DVBS
15K
3T25
V0-CTRL
330K
IT30
2T42 3T28
100K
10n
RES
RES
3T26
RES 10K
SPB SSB TV550
2K11 4DDR EU SD
10 10 11 11 11 11 12 12 12 12 13 13 13 13
B08A
2 2011-02-01
3139 123 6519
19101 049 110504.eps
14 14 14 14 15 15 15 15 16 16 16 16