Question about Samsung SIR-T451 DirecTV DTV Receiver

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How to restore factory defaults on SIR T451 settop box?

Previously worked fine for all channels. After blundering through set tup menu, auto tuning ignores each local subchannel i.e., 5-1,5-2,5-3, and instead selects the ZERO of each channel group, except 11 which it cycles through (so this is not an antenna problem). 11 must have escaped whatever error I committed. There is a service jack on the rear panel. Possibly this permits diagnostic checks or restorin factory defaults.

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Part of losing the channels is the digital transitions. some channels may come in some may not depending on the strength while this transition takes place. resatart the receiver and run the initial set-up. make sure the not to skip the zip code part

Posted on Jan 04, 2009

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When TV channels are moved from one frequency to another frequency that was previously used by a different channel (sorry, but there's no simple way of saying that !) as has happened recently in th UK, some digital TVs and digiboxes struggle to sort the channel list out properly and channels can go missing as you describe.

If your equipment has the option to delete all currently stored channels (normally in the tuning menu options) then do so and then do a full re-tune.
Sometimes, this solves the problem as the equipment is no longer aware of any previous use of a frequency and just loads every channel it finds.

If this doesnt work, or your equipment doesnt have the option, then there is normally the option soemwhere in the menus to retore the item to "factory defaults/configuration". This will clear all previously stored channels and after a full re-tune your missing chanels should be there. However, any other configuration changes you previously made, e.g picture size, output type (RGB/NSCT/etc), etc will be lost and you'll need to set these again.

NB. some regions of the country have lost some channels temporarily now until after the switch over programme completes at the end of 2012. If you visit the Freeview website, this will tell you if your area is affected.

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When TV channels are moved from one frequency to another frequency that was previously used by a different channel (sorry, but there's no simple way of saying that !) as has happened recently in th UK, some digital TVs and digiboxes struggle to sort the channel list out properly and channels can go missing.

If your equipment has the option to delete all currently stored channels (normally in the tuning menu options) then do so and then do a full re-tune.
Sometimes, this solves the problem as the equipment is no longer aware of any previous use of a frequency and just loads every channel it finds.

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Good Luck.. Tom (Dublin)
If unsuccessful it is because the code above does not work on your Box. You will know straight away when you enter it if the CAS menu doesnt appear

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1 Answer

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