Philips 273E3LSW/93 - Power Board Block Diagram

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17
Meridian 3
5.2 Power Board
MITSUBISHI 27W POWER BOARD BLOCK DIAGRAM
EMI Filter Circuit
Input AC Source 85v / 60 Hz ~ 264v / 50 Hz
Inrush Prevention
Rectification
Main Transformer
Switching Circuit ( PWM Control IC & MOSFET )
Rectification
Feedback Control Circuit
B+
Diode Rectifier and Filter Circuit
Output (+5V) To Main board /Audio *2W
Fuse For OLP
Diode Rectifier and Filter Circuit
Output (+16V) To USB(Option) Circuit
Diode Rectifier and Filter Circuit
PWM Control Circuit ( PWM Control IC _O2_TA9687 )
DC To AC Transformer ( EEL-19 * 1 pcs )
Driver Circuit ( Full Bridge )
CCFL Lamp * 4 pcs
Abnormal Protect Control Circuit
Feedback Control Circuit
Dimming Control Circuit
ON / OFF Control Signal ( 5v: on / 0v:off )
Dimming Control Signal (Burst model Signal )
Adapter Block Circuit
Inverter Block Circuit