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    Onkyo-TXDS484-avr-om维修电路原理图.pdf

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    Onkyo-TXDS484-avr-om维修电路原理图.pdf

    AV Receiver TX-DS484 Instruction Manual Thank you for purchasing the Onkyo AV Receiver. Please read this manual thoroughly before making connections and turning on the power. Following the instructions in this manual will enable you to obtain optimum performance and listening enjoyment from your new AV Receiver. Please retain this manual for future reference. Contents Before using Important Safeguards. 2 Precautions . 3 Features. 4 Supplied accessories. 4 Before operating this unit. 5 Preparation Audio equipment connections. 6 Video equipment connections. 7 Connecting other devices . 8 Connecting speakers. 10 Positioning speakers. 11 Connecting the power. 11 Making antenna connections. 12 Operation Speaker setup. 14 Selecting a sound source . 17 To enjoy Surround mode or Stereo mode . 20 Tuning in a radio station. 23 Using preset radio stations. 24 Recording a source. 25 Appendix Troubleshooting guide. 27 Specifications . 28 Control guide Control positions and names . 29 Remote controller RC-427S. 30 Using the remote controller. 31 RadioFans.CN 收音机爱 好者资料库 2 PORTABLE CART WARNING S3125A Important Safeguards 1. Read Instructions All the safety and operating instructions should be read before the appliance is operated. 2. Retain Instructions The safety and operating instructions should be retained for future reference. 3. Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to. 4. Follow Instructions All operating and use instructions should be followed. 5. Cleaning Unplug the appliance from the wall outlet before cleaning. The appliance should be cleaned only as recom- mended by the manufacturer. 6. Attachments Do not use attachments not recommended by the appliance manufacturer as they may cause hazards. 7. Water and Moisture Do not use the appliance near water for example, near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool; and the like. 8. Accessories Do not place the appliance on an unstable cart, stand, tripod, bracket, or table. The appliance may fall, causing serious injury to a child or adult, and serious damage to the appliance. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer, or sold with the appliance. Any mounting of the appliance should follow the manufac- turers instructions, and should use a mounting accessory rec- ommended by the manufacturer. 9.An appliance and cart combina- tion should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combina- tion to overturn. 10. Ventilation Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the appliance and to protect it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by placing the appliance on a bed, sofa, rug, or other similar surface. The appliance should not be placed in a built-in instal- lation such as a bookcase or rack unless proper ventilation is provided. There should be free space of at least 20 cm (8 in.) and an opening behind the appliance. 11. Power Sources The appliance should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your appliance dealer or local power company. 12. Grounding or Polarization The appliance may be equipped with a polarized alternating current line plug (a plug having one blade wider than the other). This plug will fi t into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fi t, contact your electrician to replace your obsolete outlet. Do not defeat the safety pur- pose of the polarized plug. 13. Power-Cord Protection Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. 14. Outdoor Antenna Grounding If an outside antenna or cable system is connected to the appliance, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna-discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. See Figure 1. 15. Lightning For added protection for the appliance during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and discon- nect the antenna or cable system. This will prevent damage to the appliance due to lightning and power-line surges. 16. Power Lines An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal. 17. Overloading Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fi re or electric shock. 18. Object and Liquid Entry Never push objects of any kind into the appliance through openings as they may touch danger- ous voltage points or short-out parts that could result in a fi re or electric shock. Never spill liquid of any kind on the appliance. 19. Servicing Do not attempt to service the appliance yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualifi ed service personnel. 20. Damage Requiring Service Unplug the appliance form the wall outlet and refer servicing to qualifi ed service personnel under the following conditions: A. When the power-supply cord or plug is damaged, B. If liquid has been spilled, or objects have fallen into the appliance, C. If the appliance has been exposed to rain or water, D. If the appliance does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualifi ed technician to restore the appliance to its normal operation, E. If the appliance has been dropped or damaged in any way, and F.When the appliance exhibits a distinct change in perfor- mance this indicates a need for service. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR AVIS RadioFans.CN 收音机爱 好者资料库 3 ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250, PART H) NEC NATIONAL ELECTRICAL CODE ELECTRIC SERVICE EQUIPMENT GROUND CLAMP ANTENNA LEAD IN WIRE S2898A 21. Replacement Parts When replacement parts are required, be sure the service technician has used replacement parts specifi ed by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fi re, electric shock, or other hazards. 22. Safety Check Upon completion of any service or repairs to the appliance, ask the service technician to perform safety checks to determine that the appliance is in proper operation condition. 23. Wall or Ceiling Mounting The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. 24. Heat The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appli- ances (including amplifi ers) that produce heat. FIGURE 1: EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 Precautions 1. Warranty Claim You can fi nd the serial number on the rear panel of this unit. In case of warranty claim, please report this number. 2. Recording Copyright Recording of copyrighted material for other than personal use is illegal without permission of the copyright holder. 3. AC Fuse The fuse is located inside the chassis and is not user-serviceable. If power does not come on, contact your Onkyo authorized service station. 4. Care From time to time you should wipe the front and rear panels and the cabinet with a soft cloth. For heavier dirt, dampen a soft cloth in a weak solution of mild detergent and water, wring it out dry, and wipe off the dirt. Following this, dry immediately with a clean cloth. Do not use rough material, thinners, alcohol or other chemical sol- vents or cloths since these could damage the fi nish or remove the panel lettering. 5. Power WARNING BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME, READ THE FOLLOWING SECTION CAREFULLY. The voltage of the available power supply differs according to country or region. Be sure that the power supply voltage of the area where this unit will be used meets the required voltage (e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz) written on the rear panel. Worldwide models are equipped with a voltage selector to conform to local power supplies. Be sure to set this switch to match the volt- age of the power supply in your area before plugging in the unit. For British model Replacement and mounting of an AC plug on the power supply cord of this unit should be performed only by qualifi ed service personnel. IMPORTANT The wires in the mains lead are coloured in accordance with the following code: Blue: Neutral Brown : Live As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the termi- nals in your plug, proceed as follows: The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black. The wire which is coloured brown must be connected to the termi- nal which is marked with the letter L or coloured red. IMPORTANT A 5 amp fuse is fi tted in this plug. Should the fuse need to be replaced, please ensure that the replacement fuse has a rating of 5 amps and that it is approved by ASTA or BSI to BS1362. Check for the ASTA mark or the BSI mark on the body of the fuse. IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE SOCKET OUTLET IN YOUR HOME THEN THE FUSE SHOULD BE REMOVED AND THE PLUG CUT OFF AND DISPOSED OF SAFELY. THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF PLUG IS INSERTED INTO ANY 13 AMP SOCKET. If in any doubt, please consult a qualifi ed electrician. For U.S. model Note to CATV system installer: This reminder is provided to call the CATV system installers attention to Article 820-40 of the NEC, ANSI/NFPA 70, which pro- vides guidelines for proper grounding and, in particular, specifi es that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical. FCC Information for User CAUTION: The user changes or modifi cations not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or televi- sion reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. For Canadian model CAUTION: THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS B LIMITS FOR RADIO NOISE EMIS- SION FROM DIGITAL APPARATUS SET OUT IN THE RADIO INTERFERENCE REGULATIONS OF THE CANADIAN DEPARTMENT OF COMMUNICATIONS. For models having a power cord with a polarized plug: CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. Modele pour les Canadien ATTENTION: LINTERFRENCE RADIO LECTRIQUE GNRE PAR CET APPAREIL NUMRIQUE DE TYPE B NE DPASSE PAS LES LIMITES NONCES DANS LE RGLE- MENT SUR LES PERTURBATIONS RADIO LECTRIQUES, SECTION APPAREIL NUMRIQUE, DU MINISTRE DES COMMUNICATIONS. Sur les modles dont la fi che est polarise: ATTENTION: POUR VITER LES CHOCS LEC- TRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND. RadioFans.CN 收音机爱 好者资料库 4 Features I 55 W/CH TO EACH OF THE FIVE CHANNELS INTO 8 OHMS, 20 Hz20 kHz, 0.08% THD (North American models, FTC rating) 75 W/CH TO EACH OF THE FIVE CHANNELS INTO 6 OHMS, 1 kHz, DIN (European models, DIN) 100 W/CH TO EACH OF T

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