Marantz-NA8005-nap-sm 维修电路原理图.pdf

Network Audio PlayerNA8005 /N1B, N1SG, U1B, K1B, FNNA8005S0844-1V01DM/DG1406Ver. 1Some illustrations using in this service manual are slightly different from the actual set.Please use this service manual with referring to the operating instructions without fail.For purposes of improvement, specifications and design are subject to change without notice.ServiceManualRadioFans.CN 收音机爱 好者资料库ContentsABOUT THIS MANUAL .3What you can do with this manual .3Using Adobe Reader (Windows version) .4SAFETY PRECAUTIONS .6NOTE FOR SCHEMATIC DIAGRAM .7NOTE FOR PARTS LIST .7TECHNICAL SPECIFICATIONS .9DIMENSION .9Precautions During Service.10DISASSEMBLY .6SPECIAL MODE .11Special Mode Configuration Buttons .111. Factory Initialization Mode (Factory Reset) .122. Initialization Mode (User Reset) .133. Version Display Mode .134. Product Mode2 .155. Protection History Display Mode .156. DPMS Force Update Mode .167. Update Mode (by RS232C) .188. MAC Address Rewrite Mode .189. Access to Development Server Mode .1810. USB Update Mode (by USB) .1811. Control 4 Identify Mode .18Procedure after Replacing the Microprocessor, etc. .282. Updating by DPMS .29Firmware Update Procedure.301. Updating by USB .30TROUBLE SHOOTING .281. Power not turn on. .282. OLED doesnt Light .303. No Sound, Noise generated .32MEASURING METHOD AND WAVEFORMS .39BLOCK DIAGRAM .41POWER DIAGRAM .42WIRING DIAGRAM .43PRINTED Circuit BOARDS .44AUDIO .44AUDIO .44POWER .45SMPS .45POWER .45SMPS .45DIGITAL .46STANDBY .46PHONE .46FRONT .46SCHEMATIC DIAGRAMS (1/8 ) .4701-AUDIO .4702-MCU .4803-NETWORK .4904-BDSP_DIR .5005-JACK .5106-POWER .5207-SMPS .5308-FRONT .54EXPLODED VIEW .55PACKING VIEW .57SEMICONDUCTORS .581. ICs .582. DISPLAY .702RadioFans.CN 收音机爱 好者资料库Jump to the target of a schematic diagram connectorClick the Ref. No. of the target connector in the red box around a schematic diagram connector.The screen jumps to the target connector. Page magnification stays the same as before the jump.CP401CP106vABOUT THIS MANUALRead the following information before using the service manual.What you can do with this manualSearch for a Ref. No. (phrase)(Ctrl+Shift+F)You can use the search function in Acrobat Reader to search for a Ref. No. in schematic diagrams, block diagrams, and parts lists.1.Press Ctrl+Shift+F on the keyboard. The Search window appears.2.Enter the Ref. No. you want to search for in the Search window, and then click the Search button.A list of search results appears.3.Click an item on the list. The screen jumps to the page for that item, and the search phrase is displayed.CtrlShiftF3Using Adobe Reader (Windows version) Properties Click this button and check that the printer is set to a suitable paper size. Page to print Select the following checkbox.More Options : Current View Page Sizing & Handling Select the following checkbox.Size / Size Options : FitAdd notes to this data (Sign)The Sign function lets you add notes to the data in this manual.Save the file once you have finished adding notes.Example using Adobe Reader XOn the View menu, click Sign. The Sign pane appears.Example using Adobe Reader 9On the Document menu, click Sign. Magnify schematic / printed wiring board diagrams - 1(Ctrl+Space, mouse operation)Press Ctrl+Space on the keyboard and drag the mouse to select the area you want to view. The selected area is magnified. When you want to move the area shown, hold down Space and drag the mouse. When you want to show a full page view, press Ctrl+0 on the keyboard.CtrlSpace0Print a magnified part of the manualThe Properties dialog box and functions will vary depending on your printer.1. Drag the mouse to magnify the part you want to print.2. On the File menu, click Print.3. Configure the following settings in the Print dialog box.4. Click the Print button to start printing.4Magnify schematic / printed wiring board diagrams - 2(Pan & Zoom function)The Pan & Zoom function lets you see which part of a magnified diagram is being shown in a separate window.Example using Adobe Reader XOn the View menu, point to Zoom, and then click Pan & Zoom. The Pan & Zoom window appears on the screen.Example using Adobe Reader 9On the Tools menu, point to Select & Zoom, and then click Pan & Zoom Window.Magnify schematic / printed wiring board diagrams - 3(Loupe Tool function)The Loupe Tool function lets you magnify a specific part of a diagram in a separate window.Example using Adobe Reader XOn the View menu, point to Zoom, and then click Loupe Tool. The Loupe Tool window appears on the screen.Example using Adobe Reader 9On the Tools menu, point to Select & Zoom, and then click Loupe Tool Window.5SAFETY PRECAUTIONSThe following items should be checked for continued protection of the customer and the service technician.leakage current checkBefore returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective. Be sure to test for leakage current with the AC plug in both polarities, in addition, when the sets power is in each state (on, off and standby mode), if applicable.CAUTION Please heed the following cautions and instructions during servicing and inspection. Heed the cautions!Cautions which are delicate in particular for servicing are labeled on the cabinets, the parts and the chassis, etc. Be sure to heed these cautions and the cautions described in the handling instructions. Cautions concerning electric shock!(1) An AC voltage is impressed on this set, so if you touch internal metal parts when the set is energized, you may get an electric shock. Avoid getting an electric shock, by using an isolating transformer and wearing gloves when servicing while the set is energized, or by unplugging the power cord when replacing parts, for example.(2) There are high voltage parts inside. Handle with extra care when the set is energized. Caution concerning disassembly and assembly!Through great care is taken when parts were manufactured from sheet metal, there may be burrs on the edges of parts. The burrs could cause injury if fingers are moved across them in some rare cases. Wear gloves to protect your hands. Use only designated parts!The sets parts have specific safety properties (fire resistance, voltage resistance, etc.). Be sure to use parts which have the same properties for replacement. The burrs have the same properties. In particular, for the important safety parts that are indicated by the z mark on schematic diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally placed!For safety seasons, some parts use tapes, tubes or other insulating materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wires by arranging them and using clamps to keep them away from heating and high voltage parts, so be sure to set everything back as it was originally placed. Make a safety check after servicing!Check that all screws, parts and wires removed or disconnected when servicing have been put back in their original positions, check that no serviced parts have deteriorate the area around. Then make an insulation check on the external metal connectors and between the blades of the power plug, and otherwise check that safety is ensured.(Insulation check procedure)Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and on the power. Using a 500V insulation resistance tester, check that the insulation resistance value between the inplug and the externally exposed metal parts (antenna terminal, headphones terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired.Many of the electric and the structural parts used in the set have special safety properties. In most cases these properties are difficult to distinguish by sight, and the use of replacement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be preserved. Parts with safety properties are indicated as shown below on the wiring diagrams and the parts list in this service manual. Be sure to replace them with the parts which have the designated part number.(1) Schematic diagrams .Indicated by the z mark.(2) Parts lists .Indicated by the z mark.The use of parts other than the designated parts could cause electric shocks, fires or other dangerous situations.CAUTION Concerning important safety parts6NOTE FOR PARTS LIST1. Parts indicated by nsp on this table cannot be supplied.2. When ordering a part, make a clear distinction between 1 and I (i) to avoid mis-supplying.3. A part ordered without specifying its part number can not be supplied. 4. Part indicated by mark is not illustrated in the exploded view.WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.NOTE FOR SCHEMATIC DIAGRAMWARNING:Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.CAUTION:Before returning the set to the customer, be sure to carry out either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective.WARNING:DO NOT return the set to the customer unless the problem is identified and remedied.NOTICE:ALL RESISTANCE VALUES IN OHM. k=1,000 OHM / M=1,000,000 OHMALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO FARAD. EACH VOLTAGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE.INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND OPTICAL UNITElectrostatic breakdown of the semi-conductors or optical pickup may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.1. Ground for Human BodyBe sure to wear a grounding band (1 M) that is properly grounded to remove any static electricity that may be charged on the body.2. Ground for WorkbenchBe sure to place a conductive sheet or copper plate with proper grounding (1 M) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothingCBAGrounding BandConductive Sheet orCopper Plate1M1MCBA7Personal notes:89o DimensionsUnit : mm329336225549514911053405075650o Weight : 7.2 kg nAudio performance Analog outputChannels: 2-channelsPlayable frequency range: 2 Hz - 96 kHzPlayable frequency response: 2 Hz - 50 kHz (-3 dB) (DSD mode, PCM sampling frequency: 192 kHz) 2 Hz -20 kHz (PCM sampling frequency: 44.1 kHz)S/N: 110 dB (Audible range)Dynamic range: 106 dB (DSD/192 kHz) (Audible range)101 dB (44.1 kHz)Harmonic distortion: 0.0012 % (1 kHz, Audible range)Output levelUnbalanced output: 2.3 V RMS (PCM)1.7 V RMS (DSD)Headphone output: 30 mW/32 /ohms (variable maximum) Digital outputCoaxial: 0.5 Vp-p / 75 /ohmsOptical : -15 - -21 dBm Digital inputCoaxial: 0.5 Vp-p / 75 /ohmsOptical : -27 dBm or latorUSB (Front): USB Type A (USB 2.0 High speed)USB (Rear): USB Type B (USB 2.0 High speed) nGeneralPower supply voltage/frequency: FAC 100V, 50/60HzPower supply voltage/frequency: NAC 230 V, 50/60 HzPower supply voltage/frequency: UAC 120 V, 60 HzPower supply voltage/frequency: KAC 220 V, 50 HzPower consumption (EN60065) : 30WPower consumption in standby mode: 0.4WPower consumption in Network Control - On mode:4W440TECHNICAL SPECIFICATIONSDIMENSION10Initializing This UnitInitialize this unit if you have replaced the microcomputer, one of the parts around the microcomputer.1. Disconnect the AC plug of this unit to turn the power off.2. When executing the initialization (User Reset) described in the Owners Manual. Press the INPUT and ENTER buttons simultaneously while inserting the AC plug to turn the power on. INITIALIZING appears on the display. When executing the initialization Factory Initialization (Factory Reset). Press the INPUT and CURSOR DOWN f buttons simultaneously while inserting the AC plug to turn the power on. Factory Reset appears on the display. See SPECIAL MODE on page 11 for details on the differences between the different types of initialization.3. The unit then changes to the normal mode.NOTE： If the status in step 3 does not occur, start again from step 1. Initializing the device restores settings configured by the user to the factory settings. Take note of your settings beforehand and reconfigure them after initialization.ENTERINPUTCURSORPRECAUTIONS DURING SERVICE6DISASSEMBLY Remove each part in the order of the arrows below. Reassemble removed parts in the reverse order. Read Precautions During Work before reassembling removed parts. If wire bundles are removed or moved during adjustment or part replacement, reshape the wires after completing thework. Failure to shape the wires correctly may cause problems such as noise.Explanatory Photos for DISASSEMBLY The angles from which the photos are taken are shown by Photo angle : A, B, C, D. See the diagram below about the shooting direction of each photograph. Photographs with no shooting direction indicated were taken from the top of the unit. The photograph is NA8005U1B model.The viewpoint of each photograph(Shooting direction:X)View from the topShooting direction: BShooting direction: CShooting direction: AShooting direction: DFront sideFRONT PANEL ASSYSee DISASSEMBLY1. FRONT PANEL ASSYand EXPLODED VIEWFRONT PCB (Ref. No. of EXPLODED VIEW : P1)STANDBY PCB(Ref. No. of EXPLODED VIEW : P3)PHONE PCB(Ref. No. of EXPLODED VIEW : P2)SMPS PCBSee DISASSEMBLY3. POWER PCBand EXPLODED VIEWSMPS PCB(Ref. No. of EXPLODED VIEW : P5)CABINET TOPDIGITAL PCBSee DISASSEMBLY2. MAIN PWBand EXPLODED VIEWDIGITAL PCB(Ref. No. of EXPLODED VIEW : P6)AUDIO PCBSee DISASSEMBLY5. AUDIO PCBand EXPLODED VIEWAUDIO PCB(Ref. No. of EXPLODED VIEW : P7)POWER PCBSee DISASSEMBLY4. POWER PCBand EXPLODED VIEWPOWER PCB(Ref. No. of EXPLODED VIEW : P4)71. FRONT PANEL ASSYProceeding: CABINET TOP FRONT PANEL ASSY(1) Remove the screws.(3) Remove the connector wires and FFC. Remove the screws.CN81FFC CableCN19 See EXPLODED VIEW for instructions on how to remove each PCB of the FRONT PANEL ASSY.Bottom side82. DIGITAL PCBProceeding: CABINET TOP DIGITAL PCB(1) Remove the screws.(2) Remove the screws.Remove the connector wires and FFC.DIGITAL PCBCN15FFC CableCN14FFC Cable 93. SMPS PCBProceeding: CABINET TOP SMPS PCB(1) Remove the screw.(2) Remove the screws. Remove the connector wires and FFC.4. POWER PCBProceeding: CABINET TOP POWER PCB(1) Remove the screws. Remove the connector