Question about Maxent MX-42HPT51 42 in. Plasma TV
Verify that the source is set to "Tuner", "Cable", "Antenna" or "TV". (I don't know which of these names Maxent uses, and the site formerly used for their downloads is now a generic search page.) Make sure the TV format is correct for your region (in the US it should be ATSC, sometimes called HDTV).
If you have a portable TV, bring it over and connect the cable to it to verify that the cable connection is good.
Check the other inputs to verify that the internal video switch is functioning properly. If you don't find a problem with any of these tests, you likely have a tuner problem. Note: do not use a tool to tighten the cable on the tuner connection. I've seen a lot of tuners broken that way, including some with the circuit board ripped apart inside. Use your fingers, and just make the nut snug enough to hold the cable in place and secure the ground connection made through the nut.
Posted on Feb 17, 2012
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Posted on Jan 02, 2017
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ok,your porblem is very simple,reheat or resolder the main board your tv.
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