I've seen several posts about how to get into the Service Menu on various Sony sets but have failed miserably! Can someone give details of how to get in, please? My remote is an RM-933. The instructions I've seen are: - info (is that the 'i+' button below the '7'?) 5 vol+ TV (is this the top right on/off, teletext button?) Does it matter if the set is in Digital or Analogue mode before switching off/going into standby? Heeeeeelp!