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SERVICE MANUAL
16PW810-2 Power board
Voltage
+12V
+3V3
Voltage
+12V
+3V3
The Sanken concept is used for power supply. Sanken SRTW6252 is designed. The receiver
works between 85 and 265 VAC mains voltage by using STRW6252 .In SMPS applications, secondary
voltage regulation is adjusted according to the feedback voltage from the secondary side of transformer.
The feedback voltages are 3.3V and 5V. This is connected to the comparator pin of STRW6252 via IC2
(Optocoupler). The comparator pin also protects the box against short circuits and overload. The supply
voltage of STRW6252 is between 8.9V 17V at pin4.
16MB07 E3 Board
Power Consumption
+5V
+5V
Current mA
Current mA
Page 18
Power
Watts
11.7W
----
Power
Watts
19W
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