Do not know fix broken DFID? Just, about this you can read in current article.
First has meaning find service workshop by repair DFID. This can be done using finder, eg, rambler, off-line newspaper free classified ads or forum. If price services for fix would afford - can think question exhausted. If no - then you will be forced to do everything own hands.
If you all the same decided their forces practice repair, then in the first instance need learn how repair DFID. For these objectives has meaning use your favorites finder, let us say, bing, or view numbers magazines "Home workshop", "Himself master" and etc..
I think this article least anything helped you make fix DFID.