I am working on a Samsung TV model TXF2899 that has sound but no picture. The filaments are lit. Screen and HV are good. The picture appears to be blanked. I checked the CRT, it checks good. It appears however that the signal from CXA1477AS is no good. The input is good. I am suspecting IC501 (CXA1477AS) to be defective but am still not quite convinced. I'm not quite sure if I am missing something. If anyone know or has had a similar problem please respond! Thanks!
Tyrone