KEY TO ABBREVIATIONSSTUVXYSYNCSYNC SEPTRTRACTRICK PBTPUNREGVVCOVIFVPV.PBVRV.RECVSFVSRVSSV-SYNCVTX'TALY/C:::::::::::::::::::::SynchronizationSync Separator, SeparationTransistorTrackingTrick PlaybackTest PointUnregulatedVoltVoltage Controlled OscillatorVideo Intermediate FrequencyVertical Pulse, Voltage DisplayVideo PlaybackVariable ResistorVideo RecordingVisual Search Fast ForwardVisual Search RewindVoltage Super SourceVertical-SynchronizationVoltage TuningCrystalLuminance/Chrominance