I own a toshiba model 27D47 television the sound on the television is okay till I play back a dvd rented movie or vcr tape then I can not ajust the volume high enough to hear it loud enough.I liked to know if there is a diagnostic code to reajust the television volume.
Try a differant input for the unit, or try another unit to be sure that the TV set does not have a problem in the audio input circuit. Good Luck and be sure you let us know how you make out with this TV set.