Master Reset for Sharp Aquos

[oldsatdude]

Does anyone know the button sequence for the Sharp Aquos LC-C4655U to do a master reset or get in to the diagnostics screen? My tuner seems to be corrupt and will not tune two channels of off air DTV. I have tried the reset in the menu but the same results. The host channels are strong signal levels and I have tried removing the amp to see if that had any influence.

Seems Sharp Aquos TV's are getting a lot of complaints these days.

 

[lakebum431]

Are there any firmware updates for the TV out? Digital tuner fixes seem to be very common firmware fixes thes days.

 

[oldsatdude]

Yes, I checked the web site and there is a firmware update that is newer than my current one. Seems the set is no longer supported by them.

What was weird was after two days of playing with all the antenna configurations and external converter, the channels just re-appeared. We watched them for a few days and now they are gone again. I was also wondering if the station was having issues with the mapping information on the channel carrier but my other sets tune the stations just fine.

I think the firmware update is in order.

I still would like to know if there is any type of button sequence for diagnostics or master reset if anyone out there can post.