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Cable Box Remote will not change channels on cable box

post #1 of 7
Thread Starter 
My mother has a Sharp LC-37SB24U connected to a cable box with an HDMI cable. She has no other components. The cable company programmed the remote to turn the TV on and off and control the volume of the TV. Now the problem. She cannot use the remote to change channels on the cable box except when she first powers on the TV. She then has like 15 seconds to change channels. The remote controls the volume of the TV fine and powers the TV off and on correctly. Could this be a problem with the HDMI handshake between the TV and the cable box?
post #2 of 7
What cableco & what remote?

What happens when you use the channel up and down buttons?

After getting everything on, try pushing the 'TV' button at the top of the remote, then try changing channels.
post #3 of 7
Thread Starter 
Quote:
Originally Posted by Ken H View Post

What cableco & what remote?

What happens when you use the channel up and down buttons?

After getting everything on, try pushing the 'TV' button at the top of the remote, then try changing channels.

It is a small local cable company in Groton S.D. and the remote is an ADB. Neither the channel up and down buttons or entering the channel number worked. She finally got it to work by powering off the TV with the TV remote and then turning it back on using the ADB remote. It is this remote. http://www.jamesvalley.com/images/hddvrremotelg.jpg
post #4 of 7
With a universal remote like the one your mother has if you want it to talk to the TV you push the TV button and then any buttons you want emulating the TV's own remote.
If you want the universal remot to talk to the cable box to change channels etc you need to push the CBL button and then the cable box function you want such as a channel number.
It appears that the universal remote is not set up porperly if it will not let you change the channels after you push the CBL button.
post #5 of 7
Thread Starter 
Thanks for the input. At this time it is working. Actually for this remote you can program it to always control the TV volume not matter what device is selected. That works properly. The problem was it would not change channels on the cable box after selecting CBL. However it would change channels on the cable box for 15-20 seconds right after the TV was turned on.
post #6 of 7
That is how the volume should work when set up properly by the installing tech.
Why it acted funny before I have no idea.
post #7 of 7
Thread Starter 
I discovered the problem. It is another case of the TV interferring with the remote control of the cable box. A piece of paper over the eye on the cable box fixed the problem. I can also fix the problem by using the Movie setting instead of Standard. She has had no further problems with setting on Movie and no paper. Thanks for all the helpful suggestions.
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