Comcast and picture working but no sound this morning

the guide is stored on the box so it will be there. the picture/sound comes throught the cable. so if you lose your cable service you lose picture but still get the guide (for a couple days).

make certain all the cable wires are tight from where it first comes in all the way through to the cable box, and maybe power cycle the box. (unplug the power for a sec then plug it back in)

if still the same call your provider.

good luck

I have 2 pro scans Comcast hd. On Comcast remote small button ( for me Its small circular button bottom right) HD ZOOM. (enter above it)

Maybe the cable signal is defective not your tv.the other channel is ok.if you tv has a defect all channel has affected.

My television worked this morning and now only shows a blue screen. The sound works but no picture except for a wavy blue screen.

Okay you TV is hooked to a comcast modem? or do you mean My tv is hooked to the comcast converter box? A no picture but sound you want to first check you cables also try hooking up a dvd to the tv and see if that picture comes on if not and you got no pic and sound this would mean the backlight on this tv is dead or you got a bad inverter not converter, inverter inside the tv. Meaning it needs the repairshop but try and hook up a dvd to it and see if you got picture if so you cable box might be the issue call comcast!

Thanks and please leave valuable feeback and ratings today!

you will need the adapter and the good news is, the box is free, the downside to this is the panasonic recorder is going to need to only record on channel 3 or 4(there is a switch on the back of the comcast box) and the comcast box will need to be on the channel the program is on. I.E. Panasonic recording channel 3 or 4 from 10-11 am comcast box on channel 55 during that time.

code TV/ 0156 or TV/ 1256 (or TV/ 10156 or TV/ 11256

I have a Mitsubishi  "CS-3515R.  Serial number 528801. When I turn it on by remote or on the set itself, I can hear the power come on.  BUT there is no picture and no sound.  What do I do?

Do your on screen display work when you push menu?

I had the exact same problem on a brand new Insignia 26 " LCD with DVD. Comcast tech was able to fix it by changing the Comcast box diagnostics. Here is what he did. Using the Comcast remote with the TV on - press power, cable, menu in that order. A comcast diagnostic srceen will appear. Select Additional HDMI options, then audio options. Change the audio options to L-PCM. Press power again to exit the diagnostics. That will fix it and you get to use the HDMI cable.