Mark, I had given up trying to solve the problem and switched the unit off, i.e. into standby. I picked up the remote control aiming to place it next to the F89 where it usually resides and on the off chance pressed the display button and it worked. I was able to cycle through the options for the clock. Does this mean that this is only possible when the unit is in standby?

Regards,
Fred

Meridian 818 & MD600, MS200, F80, Avid Volvere turntable, SME 309, Benz Micro Ace, Audio Research REF 75 power amp, Audio Research PH5 phono amp, Sonus Faber Cremona M speakers.