Greetings... I'm desperately trying to find the service mode code for my CX28600, wondered if someone can help. No 'menu' on set front, so 'mute-mute-menu' not an option. And yes, I've verified that CX28600 is correct, even though Toshiba.com turns up no such model in its model search, and it doesn't seem to follow their model formula! Thanks.