555DR Power Supply On/Off Button Not Latching On

[BruceW]

On/Off button on Naim 250DR

On/off button on Naim 250DR keeps popping out. Only way I can find to fix it is to make sure it is out, then flick it in with your finger tip very quickly. It should then hold. Once done - don’t switch it off - ever. Unit out of warranty so god knows how much Naim would charge for a new on/off button. At leat three figures i would wager.

This thread may help?