Flashing error codes could be the Direct tv box itself.Because tvs have problems within itself don't flashes error codes on the tv screen,the problems,just show up.Tries tv and Direct tv satellite box unplug,replug it back like about an hour later.By letting the tv resetting itself back to the factory setting and the Direct tv box updates it softwares data's.The problems should be solved,if have the same problems,first call Direct tv for a replacement box,see how it work out.Than turn ur attention to the tv.
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