The worst had happened. Suddenly(!) iPad almost stopped charging from the mains (if you enable the battery on the screen shows charging, but a day gained where 50 percent of the charge), iTunes does not see it. HardReset not helped, now generally received broken brick, so the iPad needs to connect it to my computer. Naturally cables, usb ports have been tested, tried with different, it is clearly not in them.
Googling saw that the problem is not me first, but all the tips are reduced to surrender in service. If someone faced with similar — report the possible cause and estimated cost of repairs.