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I would be looking at the coax from the booster plate going to the other two TVs. Odds are there is one coax on the back attached to the TV2 connection. From there it probably has a splitter somewhere and I suspect either a bad splitter or coax issues. If it’s under warranty, make the dealer fix it.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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