Question about Toshiba DR4 DVD Recorder

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Diagnal Interference Lines

Regardless of my hook up method, the lower channels (usually 3-12) render the picture unwatchable due to rolling diagnal lines across the screen. When I bypass the DVD-R the problem is eliminated.

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Re: Diagnal Interference Lines

The diagonal lines represent some low frequency interference (close to the supply frequency - 60 hz). Try to keep the unit away from other appliances, especially the left back zone - where the tuner is. Also, you have to do some experiments on the cable connections: disconnect other cable devices (internet modem, home phone, other tv/tuners), one of them might inject these signals into the cable. Keep me posted

Posted on Jan 28, 2007

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If you are trying to make a copy of a commercially produced DVD movie, give up. They are copy protected and the equipment sold to record and play DVDs will not allow you to make copies of these movies. Even if it would copy, there would be image distortion and possible sound distortion that would render the movie unwatchable. There are other ways to do it that involve computers and special software, but they are not legal in most jurisdictions so I will not venture into those areas.

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First let's get the units 'talking' to each other. There is no info showing re: the HDTV you're using, so I'll keep things generic.

Easiest: if both units have RF cable connectors (the old screw in cable TV types), hook 'em up with a short piece of cable, and make sure that the channels out & in match (they are ch. 3 or 4).

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Best quality (short of HDMI): at the Video Output & Inputs of both units see if there are 3 RCA jacks (usually grouped & 1ea yellow, green & red (colors can vary due units ages)), match 'em up red->red, etc. this is important since this is how the colors will be displayed!! Now You also have to hook up your audio too. Again, fire up both units, with this type connection the TV may automatically detect the new input; otherwise let the units detect each other and go from there.

Out of the methods above, only the 'S' Video is a specialized cable; for the RCA type cables, regular Audio type cables will work. If there is a lot of RF interferance upgrading to better quality and shielded cables may be necessary.

I hope this helps out.


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