on 2nd tv we have a little receiver H25, and also a small black box with cable to receiver and another cable that has the red,yellow and blk connectors which go into back of tv,and a couple more,and only 3 holes open..i have the 3 cable hookup, with red,yellow and blk.connectors,already hooked up to back of dvd player,and when i put the 3 into open holes on tv,i can hear sound from movie in the dvd player,but no picture.ive tried to change tv channel,format..nothing.advice..thanks..
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