Polar scope LED has died on my AZEQ6

[almcl]

Has anyone replaced the polar scope LED on an AZEQ6?

Mine seems to have stopped working.  Changing brightness levels via the hand controller doesn't make any difference and there is voltage as far as the pins on the LED itself (not much, 1.9 v) but, unhappily, no illumination.

In truth it's not a huge issue as I almost always polar align before the end of civil twilight when the reticule is visible against the sky, but just occasionally (last night, for instance) I need to align during astro dark and although shining a torch down the recess sort of works, it would be nice to have the 'official' rather dimmer light source in play.

I have a box of assorted LEDs which could probably supply a suitable replacement, but only if the carrier can be removed from the polar scope tube.