JVC Model # AV-27820 Chassis # A 53, or Sears (made by JVC) Model #
57-14367. This (no sound) issue sometimes happens after doing the
typical vertical repair, or after replacing the tuner, that was
damaged. No sound, & no way to turn on sound in menu. Has anyone seen
this? It's getting common for me, but I never get it solved. There is
gain from the audio output
ic. Seems like an EEPROM, or Micro issue! Thanks, Dani.