Philips Q552.2L Service Manual page 141

Circuit Diagrams and PWB Layouts
Fan control
Fan control
B03G
Q552.2L LA 10.
+12V
+3V3
3US2
3US7
9
1K0
FAN-CTRL1 8
IUT1
+3V3
3US3
11
IUT2
FAN-CTRL2 10
FAN-DRV
+12V
IUS5
5
4
TACH01
+12V
7
6
TACH02
TACHO
EN 141
+12V
+12V
7US1-1
3
LM339P
IUS3 IUS6
3US5-1
14 8 1
10K
7US2
12
BC807-25W
+12V
IUS7
+12V
7US1-2
3
LM339P
IUS4
3US5-4
13 5 4
BC807-25W
7US3
10K
IUS8
12
IUS9
+3V3
+12V
7US1-3
LM339P
2
+12V
7US1-4
LM339P
1
FUS0
back to
2011-Jul-15
div. table
B03G
4 2011-05-10
SPB SSB TV550 3 2011-03-09
3139 123 6521
2 2010-12-23
2K11 4DDR BR SD
19112_028_110628.eps
110628