I have exactly the same problem on my JVC AV-48WP74. I statr troubleshooting the unit and found a burn 2.2 ohms resistor on the LCA 90062 board (acessed from the front of the tv)This board is also known as the convergence power assembly. I replace the resistor with no joy. Researching a new board so far close to $400.00. Have you found anything else on the isuue. Tx appreciate your input...

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