I loss view of my cable channals after watching DVD.

If your Emerson ewc 1303 won't turn on manually or with the remote, there are a few things that could be the problem.

Here are a few things to check:

1. Check the power cord. Make sure it's plugged in securely to both the outlet and the TV.

2. Check the batteries in the remote. If they're dead, replace them and try again.

3. If you're still having trouble, try resetting the TV. To do this, unplug the TV from the outlet, wait 30 seconds, and then plug it back in.

4. If the TV still won't turn on, there may be a problem with the TV itself. In this case, you'll need to contact Emerson customer service for assistance.

Hi sounds like the remote may be in the wrong mode , you can scan channels into the sky box or the TV/combo.
Make sure you are scanning them into the box not the combo.

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

these units are tricky firstly its not a big name brand so the code will not be a random the only way to fix this is to buy a really good remote universal such as logitech 785

I think you may need an RF Modulator. This device will have connections for the DVD and TV and will have a channel 3/4 switch. Good luck to you.

HOOK THEM UP SEPARTLY,,,DVD COMBO WITH RCA JACKS

try a universal remote and program it to the tv and dvd

That's because this is a quad. It compresses all 4 video feeds into 1 file. When you play it back, it decompresses the video and shows you each camera. Playback through this unit is the only way to see 1 camera at a time. 
To be able to copy 1 camera shot to a DVD, this is what you need to do: You need to have a TV with Video in and Video out jacks.  Connect the Quad to the TV Video in jack and connect the TV Video out jack to your DVD Video in jack. Playback a single camera shot on the quad to the TV and hit record on your DVD. - The DVD will record whatever is shown on the TV. 

how do use revmote to program tv vhs thank you11

Go back in the menu, find (input source) or (tuner) then click the cursor right side of the menu button or the left to move the (TV) to (CATV), after you bring it up then move cursor arrow up or down to page (AUTOPROGRAM) then tap the cursor arrow right of the menu button to start the CATV channels to be found , be sure you have the cable connected to the TV. Once the channels have been found, tap (EXIT) or (STATUS) button on remote to get out of the menu and close the page, or just turn set off and back on again.

Im sorry but you can't without the original remote. If you want to consider getting the remote go to http://www.remote.com or maybe you can borrow one from a freind or a local store that sells Emerson will let you borrow one. Good Luck