Marantz-NA7004-nap-sm 维修电路原理图.pdf
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1、ServiceManual Some 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, specifi cations and design are subject to change without notice.Network Aud
2、io PlayerNA7004 /N1B/N1SGU1B/K1BNA7004NA70 4S0162-1V02DM/DG1010Ver. 2Please refer to the MODIFICATION NOTICE.RadioFans.CN 收音机爱 好者资料库2MARANTZ DESIGN AND SERVICEUsing superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.Only original MARANTZ part
3、s can insure that your MARANTZ product will continue to perform to the specifi cations for which it is famous. Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In both cases, the corr
4、ect part number has to be specifi ed. The following information must be supplied to eliminate delays in processing your order : 1. Complete address 2. Complete part numbers and quantities required 3. Description of parts 4. Model number for which part is required 5. Way of shipment 6. Signature : an
5、y order form or Fax. must be signed, otherwise such part order will be considered as null and void.In case of diffi culties, do not hesitate to contact the Technical Department at above mentioned address. 091105DM/DGUSAMARANTZ AMERICA, INC100 CORPORATE DRIVEMAHWAH, NEW JERSEY 07430USAEUROPE / TRADIN
6、G D&M EUROPE B. V. P. O. BOX 8744, BUILDING SILVERPOINTBEEMDSTRAAT 11, 5653 MA EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2507844FAX : +31 - 40 - 2507860KOREAD&M SALES AND MARKETING KOREA LTD.2F,YEON BLDG.,88-5, BANPO-DONG, SEOCHO-GU,SEOUL KOREAPHONE : +82 - 2 - 715 - 9041FAX : +82 - 2 - 715 - 9040C
7、ANADAD&M Canada Inc.5-505 APPLE CREEK BLVD. MARKHAM, ONTARIO L3R 5B1CANADAPHONE : 905 - 415 - 9292FAX : 905 - 475 - 4159JAPAND&M BUILDING, 2-1 NISSHIN-CHO,KAWASAKI-KU, KAWASAKI-SHI,KANAGAWA, 210-8569 JAPAND&M Holdings Inc.CHINAD&M SALES AND MARKETING SHANGHAI LTD.ROOM.808 SHANGHAI AIRPORT CITY TERMI
8、NAL NO.1600 NANJING (WEST) ROAD, SHANGHAI, CHINA. 200040TEL : 021 - 6248 - 5151FAX : 021 - 6248 - 4434SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins (with unit NOT con
9、nected to AC mains and its Power switch ON), and the face or Front Panel of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verifi ed before it is return to the user/customer. Ref. U
10、L Standard No. 60065.NOTE ON SAFETY :Symbol z Fire or electrical shock hazard. Only original parts should be used to replaced any part marked with symbol z . Any other component substitution (other than original type), may increase risk of fi re or electrical shock hazard.安全上注意:z部品、安全上重要部品。必指定部品番号使用
11、下。RadioFans.CN 收音机爱 好者资料库3SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resis
12、tance 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 unit is defective.Be sure to test for leakage current with the AC plug in both polarities, in addition, in each power ON, OFF and STANDBY mode, if
13、 applicable.CAUTION Please heed the points listed below during servicing and inspection. Heed the cautions!Spots requiring particular attention when servicing, such as the cabinet, parts, chassis,etc., have cautions indicated on labels. be sure to heed these causions and the cautions indicated in th
14、e handling instructions. Caution concerning electric shock!(1) An AC voltage is impressed on this set, so touching internal metal parts when the set is energized could cause electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gloves when servicing whi
15、le the set is energized, unplugging the power cord when replacing parts, etc.(2) Tere 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 manufacturing parts from sheet metal, there may in some
16、rare cases be burrs on the edges of parts which could cause injury if fi ngers are moved across them. Use gloves to protect your hands. Only use designated parts!The sets parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be sure to use parts wh
17、ich have the same poroperties. In particular, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally!For safety seasons, some parts use tape, tubes or other insulat
18、ing materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wores omsode amd clamps are used to keep wires away from heating and high voltage parts, so be sure to set everything back as it was originally. Inspect for safety
19、after servicing!Check that all screws, parts and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an inslation check on the external metal connectors and bet
20、ween 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 turn the power switch on. Using a 500V insulation resistance tester, check that the inplug and the externall
21、y 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 structural parts used in the set have special safety properties. In most cases these properties are difficult to distin
22、guish by sight, and using replacement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be poreserved. Parts with safety properties are indicated as shown below on the wiring diagrams and parts lists is this service manual. Be s
23、ure to replace them with parts with the designated part number.(1) Schematic diagrams .Indicated by the z mark.(2) Parts lists .Indicated by the z mark.Using parts other than the designated parts could result in electric shock, fi res or other dangerous situations.CAUTION Concerning important safety
24、 parts4NOTE FOR PARTS LISTThe suppliers and their type numbers of fusible resistors are as follows;1. KOA Corporation Part No. (MJI) Type No. (KOA) Description00MNH05 140 RF25S J (5% 1/4W)00MNH05 120 RF50S J (5% 1/2W)00MNH85 110 RF73B2A J (5% 1/10W)00MNH95 140 RF73B2E J (5% 1/4W)2. Matsushita Electr
25、onic Components Co., Ltd Part No. (MJI) Type No. (MEC) Description00MNF05 140 ERD-2FCJ (5% 1/4W)00MRF05 14000MNF02 140 ERD-2FCG (2% 1/4W)00MRF02 140Examples ;* Resistance value 0.1 .001 10 .100 1k .102 100k . 104 0.5 .005 18 .180 2.7k .272 680k . 684 1 .010 100 .101 10k .103 1M . 105 6.8 .068 390 .3
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