If you’re experiencing the following symptom. A Turns on fine, but can’t change INPUT or. B Can’t tune any channel (autoprogram). C When changing from INPUT may turn off. This is NOT a board sales. For Main board part #. Carrying the same number on board! To avoid fraud or abuse All our items are specially marked, serial numbered or carry safety seals. Signs of being soldered or any of the seals removed wont be credited. YOUR BOARD WILL BE TESTED AND FOUND TO BE WORKING PROPERLY. IF YOU WANT TO RETURN BECAUSE YOU FOUND OUT THIS IS NOT WHAT YOUR SET MAY NEED. YOU AGREE TO A 2. The item “Vizio E421va E470va main board REPAIR for TQACB5K00808″ is in sale since Thursday, June 29, 2017. This item is in the category “Specialty Services\Restoration & Repair\Other Restoration Services”. The seller is “risant56″ and is located in Pompano Beach, Florida. This item can be shipped worldwide.