I have been working on and trying to get into the service menu for a GT20 (UK model).
The remote does not have a “recall” button. I tried the “Vol-” on the TV with the info button on the remote as mentioned above, but all I managed to do was to put the unit into a self check mode – which also set everything back to factory rest – doh! I would advise against the “info” method on this unit.
Does anyone know how to get in?