Replies

1. 
   VAVince | Mar 03, 2007 05:20pm | #1

   A very simple test would be continuity. If you have a volt ohm meter. This will only tell you that the cable is in one piece. Short one end of the cable and check from the other end. (short the outside ground to the inside conductor).

   Testing for the performance of the cable and connectors involves test equipment that most HO would not have. (sweep test etc..)

1. 
   FastEddie | Mar 03, 2007 05:21pm | #3

   No fair, you type faster..."Put your creed in your deed."   Emerson

   "When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it."  T. Roosevelt

1. 
   VAVince | Mar 03, 2007 05:35pm | #6

   I think we are copying each other. We think alike  LOL

2. 
   FastEddie | Mar 03, 2007 05:21pm | #2

   Do you know where the other end is?  Disconnect that end, short the wires together, then go back to grandmas room and put an ohm-meter on the shield and core ... should get a reading.  If there is a break in the cable, then there won't be a complete circuit and you'll read zero.  Now if you shorted the wrong cable you won't get a good answer.

   "Put your creed in your deed."   Emerson

   "When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it."  T. Roosevelt

1. 
   BillHartmann | Mar 03, 2007 05:37pm | #7

   "should get a reading. If there is a break in the cable, then there won't be a complete circuit and you'll read zero. Now if you shorted the wrong cable you won't get a good answer."Don't put a short on it and then measure the continuity again. Should be high resistance..
   .
   A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.

2. 
   DanH | Mar 04, 2007 05:06am | #13

   You also have to test the cable without the far end shorted, to test for "opens". Opens are probably a hair more likely than shorts, especially if there are any intermediate connections.
   So convenient a thing it is to be a reasonable Creature, since it enables one to find or make a Reason for everything one has a mind to do. --Benjamin Franklin

3. 
   misfit | Mar 03, 2007 05:30pm | #4

   You might try changing the channel on the TV. Some cable Co's require you set your TV to a specific channel, unless it is a cable ready set.

4. 
   VAVince | Mar 03, 2007 05:31pm | #5

   A little more information will help. Does the cable run out side to the termination point with cable co.? does this cable split off from another cable? etc..

   Also take a close look at all connectors to make sure the are installed properly. Such as, make sure there is good connection to the outside ground shield and the little center copper wire is long enough to make a solid connection in the mating connector. Might come across a connector that a small piece of the outside shield is touching the center conductor.

5. 
   calvin | Mar 03, 2007 07:36pm | #8

   You've flipped the switch on the back of the tv to "cable".

   A great place for Information, Comraderie, and a sucker punch.

   Remodeling Contractor just outside the Glass City.

   http://www.quittintime.com/

    

6. 
   IdahoDon | Mar 03, 2007 08:12pm | #9

   Make sure the tv is working.  Use it first at the good outlet then move it to grandmas room.

   What kind of replacement ends did you use?  How did you install them?  How do you know grandma's room is connected to the others?

   I'm 95% sure the problem isn't related to the wire rather it's connections, where it's connected, or the tv.

   Good luck

    

   Beer was created so carpenters wouldn't rule the world.

7. 
   frenchy | Mar 03, 2007 08:31pm | #10

   mhilton.

    sign up for satilite.  They'll come out, install recievers in all your rooms and put a dish up on the roof Free! .. My dish is small enough and nobody can see it (little 18 inch thing)..

     It's cheaper than cable, better than cable and I get signals even after my neighbors (who have cable lose theirs during storms.. (PS cable companies get their signal off big dish antennas)

1. 
   mhilton | Mar 04, 2007 03:03am | #11

   Thanks for all your help guys.

   Sometimes the easiest problems are the hardest to fix, all it was a bad cable from receiver to tv.

   Never thought to check that one.

    

   Thanks again

   Mark

8. 
   DanH | Mar 04, 2007 05:04am | #12

   First disconnect both ends. With an ohmmeter, check between the outer shell of the connector and the center wire. Should have an "infinite" reading.

   Then either short one end or (better) install a terminating resistor on one end. Check the other end with the ohmmeter again. Should have essentially zero resistance if shorted, about 75 ohms if you use the terminator.

   In a pinch you can use a battery continuity tester (like what's sold for troubleshooting auto wiring) instead of the ohmmeter. In that case short the end rather than using a terminating resistor.

   So convenient a thing it is to be a reasonable Creature, since it enables one to find or make a Reason for everything one has a mind to do. --Benjamin Franklin