Mitsubishi WS-55819 55" Rear Projection Television "tv cracles picture" Questions

picture on tv screen i have a 55" tv 97 mo there is no sound i herd a cracling sound but i still have sound thanks carolyn try resoldering the vertical output IC. sounds like the cRTs are blanking due

...picture (as if the tv had been turned off). We have sound, can change channels with the remote, but simply don't have a picture. Any suggestions on what may be the problem? usally when this occurs ...