Beko Plasma TV Manuel de service télécharger pdf (Page 91)

Beko Elektronik A.S Service Manual Plasma Display Module-Samsung V3

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3-3 Main function of Each Assembly

■ X-main board : The X-main board generate a drive signal by switching the FET in synchronization with logic

main board timing and supplies the X electrode of the panel with the drive signal through the

connector.

1) Maintain voltage waveforms (including ERC)

2) Generate X rising ramp signal

3) Maintain Ve bias between Scan intervals

■.Y-main board : The Y-main board generate a drive signal by switching the FET in synchronization with the logic

Main Board timing and sequentially supplies the Y electrode of the panel with the drive signal

through the scan driver IC on the Y-buffer board. This board connected to the panel’s

Y terminal has the following main functions.

1) Maintain voltage waveforms (including ERC)

2) Generate Y-rising Falling Ramp

3) Maintain V scan bias

■ Logic main board : The logic main board generates and outputs the address drive output signal and the X ,Y

drive signal by processing the video signals. This Board buffers the address dirve output

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Beko Plasma TV Manuel de service Page 91