how can I fix my Hitachi 53 " shadowing problem?

Sounds like your convergence isn't working cuz your IC's are bad..this is cause from overheating....not your fault, it's the fault of the engineers who designed this model. the IC and sometimes resistors get to hot and burn up...you need to replace the IC's STK392-110, I have read a better IC would be STK392-150 rather than the -110. Good luck the est. cost $300-400. unless you know how to solder the parts on yuor self. the parts are cheap around $5.00 with resistor the cost should be $17 or so.

S. parker
March 2008