You want know fix out of service intercom? You have got at. In general, about this problem I you tell in current article.
You may seem, that repair intercom - it enough elementary it. However this actually not quite so. Many pretty strongly wrong, underestimating complexity this actions.
If you all the same decided own perform repair, then the first thing need learn how repair intercom. For it one may use yandex, or look old numbers magazines type "Home workshop" or "Model Construction", or find response this question on profile community or forum.
Hope you do not nothing spent time and this article least little help you fix intercom.