Toshiba 50HX81 Blinking Power Light

After 6 years my Toshiba quit.  The red LED power button would blink 3 times.  Found 3 pico fuses blown on the power supply board F850, 851 and 852.  After replacing fuses, the Tv worked for about an hour with faint horizontal line across the screen then stopped and power LED went back to blinking.  Pulled power supply board again and 850 and 852 are blown.  Has anyone had a similar problem?  I'm about to replace the Convergence IC's but want to make sure I am not missing anything else.