60W Magsafe Power Adapter Model No. A1344 Doesn't charge- Faulty angled connector?

This unit started failing to charge properly a while ago. Took it to Apple under warranty, worked in the shop (don't they always?).

Took it home and have used it with occasional drop out for another 6 months.

Now out of warranty and no longer connecting (no orange or green LED) or charging. Not connection on laptop - other units works okay but we have three laptops and only two older style chargers.

I'm willing to do a teardown of angled connector but could not find any history. Any suggestions as to best way way to approach this?

What are pin outs?

I'll only get one go.