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Yes I'm here. I need to ask for some more info to help.
First, what's the model number off of the back of the TV?
Second, what Setup options are you trying to change, and also how long have you owned the TV for?
Okay, you can't change to 1080 on the TV- the TV is automatically setup to display whatever resolution is coming from the "Source" (be it Cable/SAT box, etc.). So more important- would be what Source are you viewing on the TV, and how is it connected (HDMI, component, composite, etc.)?
No problem. Now, on the front of the Cable Box- it should show a couple things. We need:
1) Brand and Model of the box (for example: Explorer 4300HD).
2) The screen on the box should show a resolution (for example: 480, 720, or 1080). What does it show?
Here's the thing- if it's 1080- then the TV is getting 1080. You mentioned something about 720 above- which would be why the picture is not as clear as you expect. Please check a few channels and see if you're only getting poor picture quality on standard definition channels, or if the HD channels are poor as well. You see, with HDMI you cannot access many of the setup features- as they're processed within the cable box
Probably pulled the HDMI cable loose from the TV or the cable box. Actually this is something we needed to do anyhow. Please follow these steps:
1) Shut the TV off and disconnect it from power.
2) Unplug the cable box from power.
3) Disconnect, then reconnect the HDMI cable on both ends- making sure it's secure.
4) Plug the cable box and TV both back into power, and once the cable box reboots- turn the TV on and let me know if the resolution looks better.
Please make sure the TV is on the correct HDMI Input using the Sharp remote's INPUT button.
Okay, well something's wrong if you're on the same HDMI setting and the cable is plugged in tight on both ends.
Please try the reboot steps again- keeping in mind the TV has SEVERAL HDMI ports, and you need to make sure you're selecting the correct on you're plugged into (HDMI 1 for HDMI 2, HDMI 2 for HDMI 2, etc.).
Okay, let me ask you if you can see the HDMI 1, or 2 icon on the corner of the screen?
Also, do you have another HDMI cable you can try?
These things are going to be what Comcast asks you as well.
Okay, so the TV's fine, it's just not getting a signal from the box. Do you have another HDMI cable you can try?
Yes, that's the resolution the box is sending it- this means right now the box is sending it nothing. Could be a faulty box that was causing the issue from the get-go.
Okay, well the original issue was either caused by the HDMI cable or the Comcast box itself (since 720 on the screen was what the box was sending to it- not 1080 as it should have been). So you would first want to purchase a new HDMI cable and if the issue goes beyond that then have Comcast swap out the box- since it's at fault and they own the equipment.
If you need further assistance let me know. Please do not forget to click a POSITIVE RATING before you go- as it's how I am credited for my work. You can follow up at any time, at no additional cost.
Do you need any further assistance with this?
If not, could you please click a 5 star rating for my efforts? It is my livelihood and you can follow up at any time if needed.
Glad it's back on. So the resolution on the cable box is right on the remote? Usually it's fixed, or rebooting changes it (my Charter box defaults to 480 at least once a week and I reboot to get back to 1080). So, what's the resolution showing right now?
Good to know, so it was the Cable Box all along as I mentioned in my opening post. Glad to hear it's solved.
Please do not forget to click a POSITIVE RATING before you go- as it's how I am credited for my work. You can follow up at any time, at no additional cost.
Hang on, pulling up info on the set right now. So you're saying your friend has the exact same TV and also a box connected using HDMI, and is on a setting called "Theater"?
Yours has nothing in the settings that is close to Theater. You have basic picture adjustments (using the ORIGINAL Sharp remote------>MENU----->Picture).
Then you have some advanced settings (MENU----->Picture----->Advanced).
It's not locked- AV mode is for AV Inputs (RCA red,white and yellow). Won't work with HDMI. I posted what the picture settings are above.
Or are you saying you get a LOCKED message on the screen if you try to use the remote for ANYTHING?
I'm sorry, but nothing on "Fixed" that I can find. I will need to opt out- which simply opens the question for other Experts to assist. Please do not rate at this point, as it may hinder another from participating in this dialog. If you're not interested in any further assistance with this problem, you can self-refund by simply checking the HELP link below, or contacting Customer Service from the Home Page. http://ww2.justanswer.com/help/topics/142