Quote Originally Posted by Eatmorecrappie View Post
I have a HDS 7 and the other day it would show the depth then straight line. Then the depth would come back and blank again for about 10sec. Has anybody had this problem and knows how to correct it. Thanks for your help.
Where is your transducer mounted.... Transom, Bilge or Trolling motor ? If it is in the bilge, the seal could be coming loose.

Do you have another unit that you can test the transducer with that uses the blue connector ?

Brian