My apex flat panel tv says no signal and I cant get it to change to ch 3

Most TVs have manual buttons on them for changing channels. My Sony TV has the buttons on the top of the TV screen.

The outside antenna gets threaded onto the RF connector that says antenna in. Then either connect another RF cable to the tv and select ch 3 or 4 (switch on back of box) or use the yellow,red and white cable to the tv. If you used the three cables use the remote to select the input you used. Just advance the channels until you find the picture. If you used the RF cable, just tune to channel 3 or 4 whichever you used. Now do a channel scan with the remote that came with the converter. Once that is done you will have to use that same remote to change digital channels.

What is the exact model number to your Apex TV?

you can hooked up to the earphone jack of the tv sometimes it was located at the front panel or in the side panel of the tv.

This is the low band in the tuner for the set.

If using a cable box unplug it for a while and plug back in for it to reboot.

Also you can route from a box or even an old VCR signal from its audio/video outputs to a set of rear inputs and bypass the TV tuner--use the box or VCR to change channels.

Leave the set on that input and operate without the tuner in the TV.

Rescan all the channels?Hook the tv and the satalite signal cable in the tv and dish network box correctly check?Go to tv menu.Goto SETUP,pick CH. pick option CABLE enter to rescan all channels.This should have all the channels,belong to the package u order.

try to check the settings of your tv if all ok. if ok its a problem in your TV circuit board try to resolder maybe some sections is cold solder. if not its a service mode. trust me!

does cable box have a switch that you can change to ch 4? if cable box does, and tv can switch to ch 4, use ch 4.

if normal tv is fine then ,likely the signal from the box is too hot.
if using composite switch to cable ch 3 or vice versa,
or use hdmi cable or change the box .

Any TV hooked up to a cable or satellite box can only "see" one channel...the set-top box (STB) converts the channel you are watching to (usually) Ch. 3 or 4. With cable you can split the input if your TV has 2 RF inputs, with a dish that won't work.

That's why the TV stays on Ch 3 and the STB changes to whatever you want to watch.