Re: Troubleshooting Vizio VA370M with bad main board.



Yes it is....

I have a Vizio VA370M which will not power on. When I hit the power button the vizio logo changes from amber to white but nothing else happens. I've already diagnosed this as a bad main board. My boards model number is CBPF9D1KZ5. I tried a CBPF9D1KZ7 board in it and the lcd powered on but had interlacing issues. I had read that some other vizios had issues with bad regultors so I've measured the two regulators I can find on the front of the board and attached a picture. There is one other voltage regulator on the back of the board which I have not checked yet. Any help is appreciated.
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