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Need a powerboard replaced/repaired. If you are in waranty go through your manufacturer and work on a replacement.Need a powerboard replaced/repaired. If you are in waranty go through your manufacturer and work on a replacement.
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TV may be on the wrong input and that will give you a blue screen. When you turn the TV on and the screen starts lighting up it should show on the screen what input the tv is on. If it is not on correct input change input with the TV remote or buttons on the tv. If it is on the correct input try a power cycle on the cable box, just unplug the cable box power cord for a few seconds and then plug it back in. If neither of these solve the problem describe how the cable box is connected to the tv.
Check the remote control for its infrared emission. Check this link and select the site 'Electro-help' for details. Detailed description is there, about how to check and repair a remote control. Pull up older posts.
take your tv to technician who can check your power supply, if your power is coming on and off, than a problem is not as big. firstly let him check a ht of a supply constantly, your supply is cutting.
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