Top of the Range when purchased some 30 years ago and used almost every day since. A few weeeks ago it was in use, a switch was use to change a function and theree was a " Crack" noise and then silenec. It consists of four units: Control and tuner , Cassette player, CD player and Power Amp. It was decided to replace with the current model and just the tuner and CD units. It should be possible to repair the fault and there is a place in Lichfield that repairs Denon equipment.
( Not everyone will ) So it is up for collection for anyone who wants to give a repair a go.

Denon UPO-250 Hi Fi Personal Component system (Hatherton WS11)