Have run and determined air tv channels, but only one will work, cannot get the channels to change
Ask Sharp:
https://www.sharpusa.com/Support/ProductDetail.aspx?model=LC-50LE442U
SOURCE: Black screen for HDTV channels -- but TV menu and DVDs display normally
Try hard reset, Please unplug the tv cables and power cables for 30 min and redo the cable and check its working ....
Good luck...
SOURCE: lcd hdtv screen freezing
The problem is a software bug in their tuner. The tuner defect lockup problem only happens for the DTV over the air channels.
Unfortunately Westinghouse is not admitting to it as it would cost them a lot of money for a recall. Westinghouse fixed the problem on newer TVs but decided to do nothing on the ones they already sold hoping the customer A) would not notice in their 12 month warranty period because they have cable, satellite, or analog over the air (old TV channels, not the new DTV digital ones), or B) or the customer would think they had an antenna problem as customer service was directed to tell them that when they called in for the problem, or C) customer service was also told to tell customers "that was normal operation for DTV to lock up" with the belief that some stupid customers would beleive it. D) the In the event the customer insisted that it was a bug they would then send a RMA number by email (very slowly 7+ days later) hoping the customer would just forget about it. Then when the TV was sent in they would then replace it with a newer 32 inch TV.
This is a great class action lawsuit waiting to happen. This buggy tuner is in several models with over 300,000 TVs sold with the problem. Anyone know a good class action lawyer?
SOURCE: Cannot control TV with remote after DTV change
Cool. It's good that you fixed your problem.
Just in case that it happens again, your TV come with a "RESET" and "SYSTEM RESET" button on the back of the TV. 90% of the time, the SYSTEM RESET button will solve the problem.
SOURCE: Sharp HGTV will not show channels after EZ Setup
Well the advise I have for you is the TV is not connected to a good antenna or something is fouled with the sgnal or tuner or both.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620
SOURCE: Digital tuning is failing
The retuning process is as follows:
If you wish to CANCEL the auto tuning process whilst it is processing then press the BLUE button at any time.
You may lose some channels when you retune the TV as the channels have been rearranged. To locate them look at the EPG although you may still find that some channels are no longer available on FREEVIEW. See the following link for additional information
http://www.freeview.co.uk/_retuneinfo/
If the above process does not work then check the link above for additional information and also visit the accompanying site links below to find more information for your model of TV / FREEVIEW box.
For troubleshooting the retune procedure visit http://tvretune.co.uk/troubleshooting/
For specific model information visit http://tvretune.co.uk/productmanuals/
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