No power to the finders
A common problem with the F2 is that the battery chamber before 1977 had a smaller plastic part to secure the battery contact. This part often breaks, and the contact is no longer sprung to touch the battery. Another problem is a corroded tag on the battery contact. This occurs when there was a battery leak, or the camera was exposed in a humid environment. A less common problem is a corroded on/off switch. All cases are fixable, but would require my Standard service.
Battery chamber broken Battery tag corroded
Corroded battery on/off switch, caused by condensation on the contacts.