Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site nicmad.UUCP Path: utzoo!decvax!genrad!panda!talcott!harvard!seismo!uwvax!astroatc!nicmad!brown From: brown@nicmad.UUCP Newsgroups: net.video Subject: Re: Tape misplaying Message-ID: <440@nicmad.UUCP> Date: Sun, 24-Nov-85 12:17:07 EST Article-I.D.: nicmad.440 Posted: Sun Nov 24 12:17:07 1985 Date-Received: Mon, 25-Nov-85 21:19:18 EST References: <255@gargoyle.UUCP> Reply-To: brown@nicmad.UUCP (Mr. Video) Distribution: na Organization: Nicolet Instrument Corp. Madison WI Lines: 23 In article <255@gargoyle.UUCP> ed@gargoyle.UUCP (Ed Friedman) writes: >Recently I have experienced a strange problem on my VCR (VHS). [] > Does anyone know how the >machine ordinarily recognizes the end of tape? On VHS machines, the ends of the tape are detected by a light source going through the leaders on either end and shining on photodectors. So, when the tape goes to either end, the ligh will be 'seen' through the leader and that will cause the circuitry to put the machine into stop. Also, the take-up spool normally has a motion detector that makes sure that the tape is moving. If it isn't, the machine is put into stop. Check to make sure that the take-up spool is working, at the point where it wants to stop. You may have a torque problem. -- ihnp4------\ harvard-\ \ Mr. Video seismo!uwvax!nicmad!brown topaz-/ / decvax------/