Canon XH A1S Instruction Manual

Contents

425. Outdoor Antenna Grounding — If an outside antennais connected to the product, be sure the antenna isgrounded so as to provide some protection againstvoltage surges and built-up static charges. Section810 of the National Electrical Code, ANSI / NFPA No.70—1984, provides information with respect toproper grounding of the mast and supportingstructure, grounding of the lead-in wire to an antennadischarge unit, size of grounding conductors, locationof antenna discharge unit, connection to groundingelectrodes, and requirements for the groundingelectrode. See figure 1.26. Lightning — For added protection of this productduring a lightning storm, or when it is left unattendedand unused for long periods of time, disconnect itfrom the wall outlet and disconnect the antenna. Thiswill prevent damage to the product due to lightningand power-line surges.27. Power Lines — An outside antenna system should notbe located in the vicinity of overhead power lines orother electric light or power circuits, or where it canfall into such power lines or circuits. When installingan outside antenna system, extreme care should betaken to keep from touching such power lines orcircuits as contact with them might be fatal.28. Overloading — Do not overload wall outlets andextension cords as this can result in a risk of fire orelectric shock.29. Objects and Liquid Entry — Never push objects ofany kind into this product through openings as theymay touch dangerous voltage points or short outparts that could result in a fire or electric shock. Becareful not to spill liquid of any kind onto the product.30. Servicing — Do not attempt to service this productyourself as opening or removing covers may exposeyou to dangerous voltage or other hazards. Refer allservicing to qualified service personnel.31. Damage Requiring Service — Disconnect this productfrom the wall outlet and all power sources includingbattery, and refer servicing to qualified servicepersonnel under the following conditions:a. When the power-supply cord or plug is damaged.b.If any liquid has been spilled onto, or objects havefallen into, the product.c. If the product has been exposed to rain or water.d.If the product does not operate normally even if youfollow the operating instructions. Adjust only thosecontrols that are covered by the operationinstructions. Improper adjustment of other controlsmay result in damage and will often requireextensive work by a qualified technician to restorethe product to its normal operation.e. If the product has been dropped or the cabinet hasbeen damaged.f. When the product exhibits a distinct change inperformance. This indicates a need for service.32. Replacement Parts — When replacement parts arerequired, be sure the service technician has usedreplacement parts that are specified by Canon or thathave the same characteristics as the original part.Unauthorized substitutions may result in fire, electricshock or other hazards.33. Safety Check — Upon completion of any service orrepairs to this product, ask the service technician toperform safety checks to determine that the productis in safe operating order.34. Heat — The product should be situated away fromheat sources such as radiators, heat registers, stoves,or other products (including amplifiers) that produceheat.Fig.1ANTENNA LEAD IN WIREELECTRIC SERVICEEQUIPMENTGROUND CLAMPGROUND CLAMPSPOWER SERVICE GROUNDINGELECTRODE SYSTEM(NEC ART 250. PART H)GROUNDING CONDUCTORS(NEC SECTION 810-21)NEC - NATIONALELECTRICAL CODEANTENNA DISCHARGE UNIT(NEC SECTION 810-20)EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICALCODEWhen replacement of power supply is required, please return it to the responsible nearest Canon Service Center and pleasereplace it with the same type number CA-920.The Adapter can be used with a power supply between 100 and 240 V AC. Contact your Canon dealer for information about plugadapter for overseas use.