Marantz-PM6005v2-int-sm 电路图 维修手册.pdf

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1、Integrated Amplifier PM6005 /N1B/N1SG/U1B/K1B PM6005 S0734-0V02DM/DG1308 Copyright 2013 D&M Holdings Inc. All rights reserved. WARNING: Violators will be prosecuted to the maximum extent possible. Ver. 2 Some illustrations using in this service manual are slightly different from the actual set. Plea

2、se 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. Please refer to the MODIFICATION NOTICE. Service Manual ABOUT THIS MANUAL .3 What you can do with this manual .3 Using Ad

3、obe Reader (Windows version) .4 SAFETY PRECAUTIONS .6 NOTE FOR SCHEMATIC DIAGRAM .7 NOTE FOR PARTS LIST .7 TECHNICAL SPECIFICATIONS .9 DIMENSION .9 CAUTION IN SERVICING .10 Initializing INTEGRATED AMPLIFIER .10 DISASSEMBLY .11 1. FRONT PANEL ASSY .12 2. DIGTAL ASSY .13 3. STANDBY PWB .14 4. POWER TR

4、ANS .14 5. MAIN ASSY .14 SERVICE MODE .15 WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONE .15 ADJUSTMENT .16 IDLING CURRENT ALIGNMENT .16 DC OFFSET VOLTAGE ADJUSTMENT.17 TROUBLE SHOOTING .18 1. The power can not be turned on. .18 2. The power can not be turned on. .18 3. STANDBY LED flashes while

5、 using unit. .19 4. The power turned on, but a sound does not output normally. .19 LEVEL DIAGRAM .21 POWER DIAGRAM .22 WIRING DIAGRAM .23 PRINTED WIRING BOARDS .24 SCHEMATIC DIAGRAMS (1/4) .26 SCH01_MAIN .26 SCH02_FRONT .27 SCH03_POWER .28 SCH04_DIGITAL .29 EXPLODED VIEW .30 PACKING VIEW .31 SEMICON

6、DUCTORS .32 1. ICs .32 2 CONTENTS Jump to the target of a schematic diagram connector Click 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. ABOUT THIS MANUAL Read

7、 the following information before using the service manual. What you can do with this manual Search 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, printed wiring board diagrams, block diagrams, and parts lists.

8、 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 di

9、splayed. Ctrl Shift F 3 Using 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 : F

10、it Add 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 X On the View menu, click Sign. The Sign pane appears. Example using Adobe Reader 9 On the Document menu, click Sign. Magnif

11、y 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 ful

12、l page view, press Ctrl+0 on the keyboard. CtrlSpace 0 Print a magnified part of the manual The 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 t

13、he Print dialog box. 4. Click the Print button to start printing. 4 Magnify 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 X On the View menu, p

14、oint to Zoom, and then click Pan & Zoom. The Pan & Zoom window appears on the screen. Example using Adobe Reader 9 On 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

15、 magnify a specific part of a diagram in a separate window. Example using Adobe Reader X On the View menu, point to Zoom, and then click Loupe Tool. The Loupe Tool window appears on the screen. Example using Adobe Reader 9 On the Tools menu, point to Select & Zoom, and then click Loupe Tool Window.

16、5 SAFETY PRECAUTIONS The following items should be checked for continued protection of the customer and the service technician. leakage current check 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 le

17、akage 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),

18、 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 describ

19、ed 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 s

20、ervicing 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 fro

21、m 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

22、 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

23、 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 heatin

24、g 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 th

25、e 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

26、 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

27、 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. P

28、arts 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

29、of parts other than the designated parts could cause electric shocks, fires or other dangerous situations. CAUTION Concerning important safety parts 6 NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufa

30、cturer. 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 s

31、et 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 OHM ALL CAPACITANCE VALUES ARE EXPRESSED IN MICRO FARAD, UNLESS OTHERWISE INDICATED. P INDICATES MICRO-MICRO FARAD. EACH VOLT

32、AGE AND CURRENT ARE MEASURED AT NO SIGNAL INPUT CONDITION. CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. Parts indicated by nsp on this table cannot be supplied. When ordering a part, make a clear distinction between 1 and I (i) to avoid mis-supplying. A part ordered without specifyi

33、ng its part number can not be supplied. General-purpose Carbon Chip Resistors are not included are not included in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the ma

34、nufacturer. General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Part indicated by mark is not illustrated in the exploded view. WARNING: 1. 2. 3. 4. 5. 6. NOTE FOR PARTS LIST INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND OPTICAL UNIT El

35、ectrostatic 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 Body Be sure to wear a grounding band (1 M) that is properly grounded to remove any static electricity that may b

36、e charged on the body. 2. Ground for Workbench Be 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 b

37、and, be careful to avoid contacting semi-conductors with your clothing CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M CBA 7 Personal notes: 8 RMSPoweroutput (20Hz20kHzsimultaneousdriveofbothchannels): 45 W x 2 (8 /ohms load) 60 W x 2 (4 /ohms load) Totalharmonicdistortion (20Hz20kHzsimult

38、aneousdriveofbothchannels,8/ohmsload): 0.08 % Outputbandwidth(8/ohmsload,0.06%): 10 Hz 50 kHz Frequencyresponse(CD,1W,8/ohmsload): 10 Hz 70 kHz +0 dB, 1 dB Dumpingfactor(8/ohmsload,40Hz20kHz): 100 Inputsensitivity/Inputimpedance PHONO(MM):2.2 mV/47 k/kohms CD,TUNER,NETWORK,RECORDER: 200 mV/20 k/kohm

39、s MaximumallowablePHONOinputlevel(1kHz)MM: 100 mV RIAAdeviation(20Hz20kHz): 1.0 dB S/N(IHF-A,8/ohmsload) PHONO(MM):83 dB (5 mV input, 1 W output) CD,TUNER,NETWORK,RECORDER:102 dB (2 V input, Rated output) Tonecontrol Bass(50Hz): 10 dB Treble(15kHz):10 dB Digitalinput Coaxial: 0.5 Vp-p Optical: 27 dB

40、m or later Powerrequirement(forUmodel):AC 120 V, 60 Hz Powerrequirement(forNmodel):AC 230 V, 50/60 Hz Powerrequirement(forKmodel):AC 220 V, 50 Hz Powerrequirement(forFmodel):AC 100 V, 50/60 Hz Powerconsumption: 155 W Powerconsumptionduringstandby:0.3 W Unit : in. (mm) Weight : 7.6 kg 329 370 2255945

41、 1491 105 440 340 56 50 50 1625 TECHNICAL SPECIFICATIONS DIMENSION 9 Initializing INTEGRATED AMPLIFIER INTEGRATED AMPLIFIER initialization should be performed when the com and peripheral parts of com were replaced. 1. Turn off the power pressing POWER button. 2. Press POWER button while simultaneous

42、ly while pressing SOURCE DIRECT buttons. 3. Check the set entered the service mode.(Refer to 15 page SERVICE MODE.) SOURCE DIRECTPOWER CAUTION IN SERVICING 10 FRONT PANEL ASSY Refer to DISASSEMBLY 1. FRONT PANEL ASSY and EXPLODED VIEW POWER SW PWB (Ref. No. of EXPLODED VIEW : C1) HEADPHONE PWB (Ref. No. of EXPLODED VIEW : C2) FRONT PWB (Ref. No. of