TBC/frame synchronizer with adjustable horizontal and vertical blanking. Y/C, composite and SDI input. Simultaneous Y/C, composite and SDI output. Easy pushbutton video input selector. Time base correction for heterodyne VTRs. Frame synchronization with full frame memory. 4 times sub-carrier sampling, 8 bits resolution. Constant H-phase for matched frame edit. Constant SC/H phase. Gen-lock capability. Full proc-amp control with no interruption presets. Handle high speed search. Option YUV output. Option hot switch. SDI, Y/C and composite input, Y/C and composite output (D/A converter), genlock, digital proc amp, freeze.