Sharp Aquos LC 37HV4U - problems with AVC

Question

Hi. I have a Sharp Aquos LC 37HV4U. However, the AVC box is shot, andnot worth the price for repair. The screen is still fine. Is thereanything I could to get it to work? I might be ale to get an AVC from the LC 30HV4U model. From what I gather, the only difference is that the LC 37HV4U is a 37 inch, and the LC 30HV4U is a 30 inch. Would that AVC box be compatible with my screen?Thanks