Dell D800 Inverter issue

Hi all,

I'm having a bit of trouble, I'm pretty sure the inverter has gone on my laptop/

The part no. being K02I056.04

Only trouble is I can only find K02I056.01 or K02I056.02

Does anybody know if these are compatible? I'm stumped, I cannot find it at all, the K02I056.04 has come from the inverter carcass itself, I have it in bits now.

Hope somebody can help.

Regards

Darren