We have an APC UPS that has gone faulty.

APC will not supply a circuit diagram, and do hnot have a repair
facility - their advice is to throw it away and buy aa new one.

If I do that, it certainly won't be an APC one that I buy.

In the meantime I'd still l ike to try and fix the one we have. Has
anyone got any experience of this, or any schematics even?

thanks