{HEAD ~ Timing} of internally generated horizontal synchronization signal and {TAIL ~ vertical synchronization signal} is shifted 
of
{ HEAD ~ Timing } of internally generated horizontal synchronization signal and { TAIL ~ vertical synchronization signal } is shifted
HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH