Within 60 days after September 17, 1984 (the effective date of Article 6 of Public Act 83-1456), the Village President of Schaumburg, with the advice and consent of the Schaumburg Village Board of Trustees, shall appoint 7 members of the Board, 2 members to be appointed for terms of one year, 2 members to be appointed for terms of 2 years, and 3 members to be appointed for terms of 3 years, such terms commencing on the date each is appointed. Within 60 days after September 11, 1990 (the effective date of Article 4 of Public Act 86-1414), the Village President of Schaumburg, with the advice and consent of the Schaumburg Village Board of Trustees, shall appoint 2 additional members of the Board, one member to be appointed for a term of 2 years and one member to be appointed for a term of 3 years, the terms commencing on the date each is appointed. One of the members appointed may be a representative from the Schaumburg Village Board of Trustees. At the expiration of the term of any member, his successor shall be appointed by the Village President of Schaumburg in a like manner. All successors shall hold office for a term of 3 years from the date of appointment, except in case of an appointment to fill a vacancy.