The goal of this IC is to control all the functions related to the horizontal and vertical deflection in a multimodes or multisync monitor. As can be seen in the block diagram, the STV7778S includes the following functions : - Positive or Negative sync polarities, - Auto-sync horizontal processing, - H-PLL lock/unlock identification, - Auto-sync Vertical processing, - East/West signal processing block, - B+ controller, |