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Improper adjustment of other controls may result in damage and will often require extensive work by a qualify technician to restore the product to normal operation. E. If the product has been dropped or the cabinet has been damaged. F. If the product exhibits a distinct change in performance. 13. Avoid using a telephone (other than a curdles type) during an electrical storm. There may be a remote risk of electric shock from lightning. 14 Do not use the telephone to report a gas leak in the