System Power 2; Lnb Power Supply; Audio Power & Switch - Philips 32PFH5300 Service Manual

Circuit Diagrams and PWB Layouts
10-4-2

System Power 2

B02
System Power 2
+5V_SW
Panel VCC=12V or 5V
FB751
PANEL VCC FB750 FB751 R751
+12V Yes NC 5.1K
+5V NC Yes 0R
10K 1/10W 5%
PANEL_VCC ON/OFF:
Normal:High
5.1KOHM +-5% 1/10W
Stand_By:Low
PANEL_VCC_ON/OFF R750 10K 1/16W 5%
R759 C751
10K 1/16W 5% NC/4.7UF 10V
12V_SWITCH
FB758 12V_AMBILIGHT
120R 3A
1 2
FB759
120R 3A
1 2
+12V
FB752
120R 3A
Q757
8 1
D D
7 2
D D
6 3
D D
5 4
S G
AON4421
R770 C763 1UF 16V
10K 1/10W 5%
R769 27K 1/10W 5%
R776
5.1KOHM +-5% 1/10W
DVDD3V3
R777 Q754
10K 1/16W 5% BC847C
R778
10K 1/16W 5%
TPM15.1E LA 10.
AUDIO POWER & SWITCH
+12V PANEL_VCC
FB750
Q750
8 1
D D
7 2
D D
6 3
D D
5 4
S G
C752
+
AON4421
R752
C750 1UF 16V
R753 27K 1/10W 5%
R751
Q751
BC847C
12V_LNB
R782
0R051/8W
C762 C764
100NF 16V 10UF 16V
C755
+
220NF 16V
C757 470PF 50V
R756 C756
4K7 1/16W 5% 47NF 16V
LNB_EN
R774
10K 1/16W 5%
LINEDROP
R754
DVDD3V3
NC/10K 1/16W 5%
13V/18V_SW
R755
10K 1/16W 5%
LINEDROP
LO : 13V/18V
HI : 14V/19V
EN 56
12V_AUDIO
FB754 FB755
C666 +
NC/100UF 16V
Q753
8 1
D D
7 2
D D
6 3
D D
5 4
S G
AON4421
R760 C760 1UF 16V
10K 1/10W 5%
R761 27K 1/10W 5%
R763
5.1KOHM +-5% 1/10W
DVDD3V3
R762 Q752
10K 1/16W 5% BC847C
R764
10K 1/16W 5%

LNB POWER SUPPLY

L750 D750
22UH FB340M
1 2
C754 C758
10uF 25V 10uF 25V
U751
MP8126DF-LF-Z
1 16
SGND PGND
C759 2 15
BY PASS SW
3 14 C753 0.1uF 25V
VDD BST
4 13
COMP VBOOST
5 12
EN VOUT
6 11 R766 10K 1/16W 5%
LINEDROP ILIMIT
7 10 C761 22NF 25V
POK TCAP
DISEQC_OUT
8 9
13V/18V EXTM
R757 33R 1/16W 5%
R758 100K 1/16W 5%
R765
12V_LNB
100K 1/10W 5% R771
2.7K 1%
Q755
MMBT3904
R783 R779
NC/0R05 1/16W
0R05 1/10W
back to
2015-Jun-12
div.table
PVDD
OPWRSB
OPWRSB
PANEL_VCC_ON/OFF
9,11 PANEL_VCC_ON/OFF
GND
2,4,5,6,7,8,9,10,11,12,13,14,15 GND
+ C667 TUNER_LNB
14 TUNER_LNB
NC/100UF 16V
+5V_SW
+5V_SW 2,5,6,7,8,9,12,13,14
DISEQC_OUT
14 DISEQC_OUT
+12V
2,7,9 +12V
DVDD3V3
2,4,5,7,9,11,12,14,15 DVDD3V3
12V_AUDIO
2 12V_AUDIO
PVDD
7 PVDD
12V_AMBILIGHT
15 12V_AMBILIGHT
LNB_EN
9 LNB_EN
LINEDROP
14 LINEDROP
13V/18V_SW
14 13V/18V_SW
12V_AMBILIGHT
15 12V_AMBILIGHT
ADIN_Unicable
11 ADIN_Unicable
L751
1.0UH 4.5A
TUNER_LNB
C767 C765 ZD751 ZD750
4.7uF K 25V 4.7uF K 25V
D751
FB340M
D752 C766
FB340M 0.1uF 50V
R768
33K 1%
R767
10K 1/10W 1%
System Power 2
B02
2,4,7
ADIN_UniCable
R780
34.8K 1/16W 1%
R781 ZD752
4.99K 1/16W 1%
2013-10-03
715G6165
19600_509.eps