Marantz-SR7400-av-om维修电路原理图.pdf

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1、Model SR7400 User Guide AV Surround Receiver SR7400U DFU_00_cover03.10.13, 9:23 AMPage 11Adobe PageMaker 6.5J/PPC RadioFans.CN 收音机爱 好者资料库 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SER

2、VICING 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

3、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 product. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO

4、RAIN OR MOISTURE. CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. ATTENTION: POUR VITER LES CHOC LECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND. NOTE TO CATV SYSTEM INSTALLER: This rem

5、inder is provided to call the CATV (Cable-TV) system installers attention to Section 820-40 of the NEC which provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry a

6、s practical. 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, u

7、ses 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 in

8、terference to radio or television reception, which can be determined by tuning 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 a

9、nd 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. IMPORTANT SAFETY INSTRUCTIONS READ BEFORE OPERATING EQUIPMENT This product was designed and manufactured to me

10、et strict quality and safety standards. There are, however, some installation and operation precautions which you should be particularly aware of. 1.Read Instructions All the safety and operating instructions should be read before the product is operated. 2.Retain Instructions The safety and operati

11、ng instructions should be retained for future reference. 3.Heed Warnings All warnings on the product and in the operating instructions should be adhered to. 4.Follow Instructions All operating and use instructions should be followed. 5.Cleaning Unplug this product from the wall outlet before cleanin

12、g. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 6.Attachments Do not use attachments not recommended by the product manufacturer as they may cause hazards. 7.Water and Moisture Do not use this product near water-for example, near a bath tub, wash bowl, kitchen sink,

13、 or laundry tub, in a wet basement, or near a swimming pool, and the like. 8.Accessories Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand,

14、tripod, bracket, or table recommended by the manufacturer, or sold with the product. Any mounting of the product should follow the manufacturers instructions, and should use a mounting accessory recommended by the manufacturer. 9.A product and cart combination should be moved with care. Quick stops,

15、 excessive force, and uneven surfaces may cause the product and cart combination to overturn. 10.Ventilation Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating, and these openings must not be blocked or co

16、vered. The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturers instructions have been adhered to. 11.P

17、ower Sources This product 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 product dealer or local power company. For products intended to operate from battery power, or other sources, ref

18、er to the operating instructions. SR7400U DFU_00_cover03.10.13, 9:23 AMPage 8Adobe PageMaker 6.5J/PPC RadioFans.CN 收音机爱 好者资料库 12.Grounding or Polarization This product may be equipped with a polarized alternating- current line plug (a plug having one blade wider than the other). This plug will fit i

19、nto 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 fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. AC

20、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 product. 14.Protecti

21、ve Attachment Plug The product is equipped with an attachment plug having overload protection. This is a safety feature. See Instruction Manual for replacement or resetting of protective device. If replacement of the plug is required, be sure the service technician has used a replacement plug specif

22、ied by the manufacturer that has the same overload protection as the original plug. 15.Outdoor Antenna Grounding If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up sta

23、tic 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

24、 to grounding electrodes, and requirements for the grounding electrode. See Figure 1. 16.Lightning For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable sys

25、tem. This will prevent damage to the product due to lightning and power-line surges. 17.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 installi

26、ng 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. 18.Overloading Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock.

27、 19.Object and Liquid Entry Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product. 20.Servicing Do not attempt to service this produc

28、t yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. 21.Damage Requiring Service Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions: a

29、.When the power-supply cord or plug is damaged. b.If liquid has been spilled, or objects have fallen into the product. c.If the product has been exposed to rain or water. d.If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered b

30、y the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation. e.If the product has been dropped or damaged in any way, and f.When the product exhibits a dis

31、tinct change in performance this indicates a need for service. FIGURE 1 EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de la Classe B est conforme la norme NMB-003 du Canada. NEC - NATIO

32、NAL ELECTRICAL CODE ANTENNA LEAD IN WIRE GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) GROUNDING CONDUCTORS (NEC SECTION 810-21) ELECTRIC SERVICE EQUIPMENT GROUND CLAMPS POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250, PART H) 22.Replacement Parts When replacement parts are required

33、, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards. 23.Safety Check Upon completion of any service or repairs to this product,

34、 ask the service technician to perform safety checks to determine that the product is in proper operating condition. 24.Wall or Ceiling Mounting The product should be mounted to a wall or ceiling only as recommended by the manufacturer. 25.Heat The product should be situated away from heat sources s

35、uch as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat. SR7400U DFU_00_cover03.10.13, 9:23 AMPage 9Adobe PageMaker 6.5J/PPC RadioFans.CN 收音机爱 好者资料库 1 ENGLISH TABLE OF CONTENTS INTRODUCTION. 2 PRECAUTIONS . 2 DESCRIPTION. 2 FEATURES . 3 ACCESSORIES . 3 FR

36、ONT PANEL . 4 FL DISPLAY .5 REAR PANEL . 6 REMOTE CONTROLLER RC1400. 7 NAMES AND FUNCTIONS .7 LCD INDICATORS .8 REMOTE CONTROL RANGE.9 LOADING BATTERIES .9 BATTERY REPLACEMENT INTERVAL .9 SETTING THE TIME .10 GENERAL INFORMATION OF RC1400 TO SR7400 .10 CONNECTIONS. 11 SPEAKER PLACEMENT . 11 CONNECTI

37、NG SPEAKERS. 11 CONNECTING AUDIO COMPONENTS .12 CONNECTING VIDEO COMPONENTS .13 ADVANCED CONNECTING .14 CONNECTING THE REMOTE CONTROL JACKS .14 CONNECTING THE ANTENNA TERMINALS.15 CONNECTING FOR THE MULTI ROOM.16 SETUP . 17 ON SCREEN DISPLAY MENU SYSTEM.17 1 INPUT SETUP (ASSIGNABLE DIGITAL INPUT AND

38、 COMPONENT VIDEO INPUT) .18 2 SPEAKER SETUP .18 3 PREFERENCE.19 4 SURROUND .20 5 PL II (PRO LOGIC II) MUSIC PARAMETER .20 6 CS II (CIRCLE SURROUND II) PARAMETER .20 7 MULTI ROOM .20 8 7.1 CH INPUT LEVEL .21 9 DC TRIGGER SETUP.21 BASIC OPERATION (PLAY BACK) . 22 SELECTING AN INPUT SOURCE .22 VIDEO CO

39、NVERT .22 SELECTING THE SURROUND MODE .22 ADJUSTING THE MAIN VOLUME .22 ADJUSTING THE TONE (BASS provides a convincing three-dimensional soundfield on conventional stereo music recordings; and is ideally suited to bring the surround experience to automotive sound. While conventional surround program

40、ming is fully compatible with Dolby Surround Pro Logic II decoders, soundtracks will be able to be encoded specifically to take full advantage of Pro Logic II playback, including separate left and right surround channels. (Such material is also compatible with conventional Pro Logic decoders.) Dolby

41、 Digital EX creates six full-bandwidth output channels from 5.1-channel sources. This is done using a matrix decoder that derives three surround channels from the two in the original recording. For best results, Dolby Digital EX should be used with movies soundtracks recorded with Dolby Digital Surr

42、ound EX. About Dolby Pro Logic IIx Dolby Pro Logic IIx technology delivers a natural and immersing 7.1-channel listening experience to the home theater environment. A product of Dolbys expertise in surround sound and matrix decoding technologies, Dolby Pro Logic IIx is a complete surround sound solu

43、tion that maximizes the entertainment experience from stereo as well as 5.1-channel encoded sources. INTRODUCTION Thank you for purchasing the Marantz SR7400 Surround receiver. This remarkable component has been engineered to provide you with many years of home theater enjoyment. Please take a few m

44、inutes to read this manual thoroughly before you connect and operate the SR7400. As there are a number of connection and configuration options, you are encouraged to discuss your own particular home theater setup with your Marantz A/V specialist dealer. PRECAUTIONS CAUTIONS ON INSTALLATION For heat

45、dispersal, leave at least 20 cm/8 inch of space between the top, back and sides of this unit and the wall or other components. Do not obstruct the ventilation holes. 20 cm (8 ins.) 20 cm (8 ins.) AV SURROUND RECEIVER SR7400 UP SELECTORVOLUME DOWN MEMORYTUNINGMODEF/PCLEAR 7.1CH INPUTAUX2 MUTE MULTI SPEAKERMULTISPEAKERS A/B POWER ON/STANDBYPHONES ENTER STANDBY AUX INPUT S-VIDEOVIDEOLAU