Ordering number : EN7879A LA78040 Monolithic Linear IC TV and CRT Display Vertical Output IC with Bus Control Support Overview The LA78040 is a vertical deflection output IC for high image quality TV and CRT displays that supports the use of a bus control system signal-processing IC. The sawtooth waveform from the bus control system signal-processing IC can directly drive the deflection yoke (including the DC component). Color TV vertical deflection system adjustment functions can be controll.