Beocenter 9500

25th February 2010

When Powerlink loudspeakers were connected to this unit they remained switched on all the time because the 12V “power up” signal on pin 1 of the Powerlink connectors was always present. The cause of this was that the standby relay 62RL1, it couldn’t open because 62D6 (1N4148) was short circuit and 60TR4 (BC337) had partially melted and split in half. A new diode and transistor restored normal working but it is odd that this fault had no other obvious symptoms. [Beocenter 9500]