126
August 2009 Plasma 50PS80
FRONT IR, POWER LED and SIDE KEY PWB SECTION
FRONT IR, POWER LED and SIDE KEY PWB SECTION
The following section gives detailed information about the Front
The following section gives detailed information about the Front
IR,
IR,
Power LED and Side Key PWBs. These boards contains the Infrared
Power LED and Side Key PWBs. These boards contains the Infrared
Receiver, Intelligent Sensor, Side Keys and Power LEDs section.
Receiver, Intelligent Sensor, Side Keys and Power LEDs section.
The front Intelligent Sensor IC communicates with the Main PWB
The front Intelligent Sensor IC communicates with the Main PWB
Microprocessor via Clock and Data lines.
Microprocessor via Clock and Data lines.
These boards have no adjustments.
These boards have no adjustments.
The Front Control Board (IR and Intelligent Sensor) receives its
The Front Control Board (IR and Intelligent Sensor) receives its
main
main
B+ from the Main PWB:
B+ from the Main PWB:
•
•
STBY 5V from the Main PWB. This voltage is originated on the
STBY 5V from the Main PWB. This voltage is originated on the
Switched Mode Power Supply
Switched Mode Power Supply
•
•
3.3V generated on the Main PWB.
3.3V generated on the Main PWB.
•
•
The Front Power LEDs are driven by 3 separate pins from the
The Front Power LEDs are driven by 3 separate pins from the
Main board.
Main board.
