Ageing rocker replaced

UPDATE: The faulty rocker switch on the Wharfedale PM600 was prised open (by depressing two lugs either side of the cover the top came of it) and the cause proper was found; one of the two sprung contacts inside had become misshapen over time and that pole was no longer connecting when the switch was in the 'ON' position.

It had been temporarily lighting up the power LED in the mid-range of its switching motion as that was when the contact was pressed fully home, but as soon as this pressure lessened (or was finally removed) the contact failed.

The separated components of the dismantled rocker switch

The rocker section itself - note the lug on the outer right

The removed spring contacts. Problem: different angles

The main body of the switch into which the spring contacts were fitted. The circular pads on all surfaces were still in good condition - not that it mattered, as the entire switch was replaced anyway (a perfect match was conveniently found in the workshop)

This side profile shot shows how the connections at the rear are actually lugs which are principally designed to be plugged into connectors. This is no major problem, although some care had to be taken whilst re-soldering the wires onto them because (if too much heat gets transferred to the spring contacts inside the switch) this can cause warping - and would've effectively put us right back at the start!

Anyway, the new switch is now fully installed and operation has been returned to normal ...