Panasonic TH-37PX60U, Technical Manual

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Panel Drive (TH-42PX75U)
Discharge Control
IC9500 of the D board contains the Discharge Control circuit that analyzes the RGB and sync information of
the video signal to create the Scan data to drive the Scan operation (SC) board and Sustain data to drive the
Sustain operation (SS) board.
The SC board is responsible for the generation of the scan pulses. Scan pulses are used for initialization and
selection of the pixels. The SU and SD boards are de-multiplexer boards that are responsible for converting
the serial data output of the SC board into parallel data to drive the panel. Each board drives one half of the
panel horizontally.
The SS board is responsible for the generation of the sustain pulses. Sustain pulses are used to initialize and
control the brightness of the panel.
Data Drive
IC9900 memorizes the 10 bit data into two field data to drive the left and right side of the panel. IC9900
subsequently converts the picture data into the 10, 11, or 12 subfields data to feed the data electrodes of the
panel.
The data drive signal of IC9900 is output to the C boards. The C boards are buffer boards that are used to
distribute data to the shift registers of the panel.
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