 newsgroup sci electron path edu!rochest!udel!wupost!cs utexa edu!utnut!torn!uunet ca!imax!dave from dave imax imax dave martindal subject re ntsc horiz vert drive black burst? messag-id 1993apr26 164319 14055 imax imax keyword video organ imax corpor mississauga canada refer date mon 26 apr 1993 16 43 19 gmt line 21 jackp netsi com jack power write hook camera donat local commun cabl tv station sync input form horizont vertic drive our station sync black burst work fine box genlock style input can point design articl show produc horizont vertic drive signal? check station's master sync gener you'll find horizont vertic drive output a coupl cabl busi anoth possibl find genlock sync gener hd vd output - genlock station sync feed hd vd camera if build sync separ look circuit diagram exist sync gener - includ circuitri dave 