Philips QM14.3E LA Service Manual page 53

Circuit Diagrams and PWB Layouts
10-1-14 B, LNB SUPPLY 2
LNB SUPPLY 2
B
I045F
R058F 4.7K C098F
GND-LNB-DT C114F
DT-LNB-ENABLE DT-LNB-ENABLE
R051F 10K
+3V3-DT
DT-LNB-LINEDROP DT-LNB-LINEDROP
R052F 10K
RES
R053F 10K DT-LNB-VH DT-LNB-VH
DT-22KHz
QM14.3E LA 10.
L014F
I033F
+12V
30H
GND-LNB-DT
U010F
MP8126
I046F
C113F
2
BYPASS
50V
220nF
47nF
11
GND-LNB-DT
ILIMIT
16V
I044F
470pF
4
COMP
50V
I051F
5
EN
F028F
6
LINEDROP
R059F
I042F
7
+12V
POK
100K
F027F
8
13V/18V
R074F
I041F
9
EXTM
33
GND-LNB-DT
GND-LNB-DT
GND-LNB-DT GND-LNB-DT X005F
GND-LNB-DT
GND-LNB-DT
EN 53
L022F
1uH
I032F D006F I031F L015F
L021F
I034F
22uH
B230LA-M3 30H
RES
I036F
15
SW
13
VBOOST
I039F
C072F 100nF
14
BST
16V
12
VOUT
I040F
C112F 22nF
10
TCAP
16V
GND-LNB-DT
back to
2014-Apr-17
div.table
R054F I037F
10K
3
I038F
U006F 1
BC847BW(COL)
2
GND-LNB-DT GND-LNB-DT
GND-LNB-DT
F008F
MTK UHD 50 Hz
7800
B
+V-LNB-DT
I035F
DT-LNB-SENSE
1 2014-02-14
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19580_095_140313.eps
14-03-26