Circuit Explanation - Panasonic TC-P50VT20 Technical Manual

Circuit Explanation

The D board consists of a Video/Panel Control circuit, a Discharge Control circuit, and a
Microprocessor Control circuit.
The right LVDS (Low Voltage Differential Signaling) signal from the A board is processed by the
Video/Panel Control circuit (IC9400) and the left LVDS is control by IC9300.
IC9400 output the video data to the data drive circuit boards C1, C2, C4, and C5. These boards output
video data to the panel drive ICs that control the right side of the panel. The Discharge Control circuit
outputs the Control Data, Sustain Data, and Scan Control Data. The Control Data is used by the Data
Drive Circuit boards (C3 and C6 boards) to control the left side of the panel.
The Sustain Control Pulses are used by the Sustain board and the Scan Control Pulses are used by
the Scan board.
Supply voltages P15V, P5V, and STB5V from the power supply are used to drive the circuits on the D
board. Other voltages (1.2V, 2.5V, and 3.3V) derived from the P15V are used by the Video/Panel
Control IC (IC9300) and the Video/Panel Control/Discharge Control IC (IC9400).
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