Denon-DNA100M-int-sm维修电路原理图.pdf

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1、PROFESSIONAL BUSINESS COMPANY For purposes of improvement, specifications and design are subject to change without notice. Please use this service manual with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual

2、set. 注意 前、 必読。本機、火災、感電、 対安全性確保、配慮 、法的電気用品安全法 、所定許可得製造。 従際、安全性維 持、記載 注意事項必守。 本機仕様性能改良、予告変更 。 補修用性能部品保有期間、製造打切後 8 年。 修理際、必取扱説明書参照上、作業行 。 本文中使用、説明都合上現物 多少異場合。 X0394 V.01 DE/CDM 0807 SERVICE MANUAL INTEGRATED STEREO AMPLIFIER MODELJPE3E2EKE2AE1CE1KEUT DN-A300M ? Ver. 1 RadioFans.CN 收音机爱 好者资料库 2 DN-A300M

3、 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 or seals. Be sure to heed these cautions and the cautions indicated in the handli

4、ng instructions. Caution concerning electric shock! (1) An AC voltage is impressed on this set, so touching in- ternal 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 while th

5、e set is energized, un- plugging the power cord when replacing parts, etc. (2)There are high voltage parts inside. Handle with extra care when the set is energized. Caution concerning disassembly and assembly! Though great care is taken when manufacturing parts from sheet metal, there may in some ra

6、re cases be burrs on the edges of parts which could cause injury if fingers are moved across them. Use gloves to protect your hands. Only use designated parts! The sets parts have specific safety properties (fire resis- tance, voltage resistance, etc.). For replacement parts, be sure to use parts wh

7、ich have the same properties. In par- ticular, for the important safety parts that are marked z on wiring diagrams and parts lists, be sure to use the desig- nated parts. Be sure to mount parts and arrange the wires as they were originally! For safety reasons, some parts use tape, tubes or other in-

8、 sulating materials, and some parts are mounted away from the surface of printed circuit boards. Care is also taken with the positions of the wires inside and 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 s

9、afety after servicing! Check that all screws, parts and wires removed or discon- nected for servicing have been put back in their original po- sitions, inspect that no parts around the area that has been serviced have been negatively affected, conduct an insu- lation check on the external metal conn

10、ectors 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 turn the power switch on. Us- ing a 500V insulation resistance tester, check that the in- su

11、lation resistance between the terminals of the power plug and the externally exposed metal parts (antenna ter- minal, headphones terminal, microphone terminal, input terminal, etc.) is 1M or greater. If it is less, the set must be inspected and repaired. Concerning important safety parts Many of the

12、 electric and structural parts used in the set have special safety properties. In most cases these prop- erties are difficult to distinguish by sight, and using re- placement parts with higher ratings (rated power and withstand voltage) does not necessarily guarantee that safety performance will be

13、preserved. Parts with safety properties are indicated as shown below on the wiring dia- grams and parts lists is this service manual. Be sure to re- place them with parts with the designated part number. (1) Schematic diagrams . Indicated by the z mark. (2) Parts lists . Indicated by the z mark. Usi

14、ng parts other than the designated parts could result in electric shock, fires or other dangerous situations. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the custome

15、r, make sure you make 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 unit is defective. CAUTION CAUTION RadioFans.CN 收音机爱 好者资料库

16、3 DN-A300M 、点検時注意願。 注意事項守！ 特注意必要個所 、 部品、 捺印注意 事項表示。 注意書取扱説明 書注意事項必守。 感電注意！ (1) 、交流電圧印加通電 時内部金属部触感電。 従通電時、絶縁使用手 袋着用、部品交換、電源抜 感電注意。 (2) 内部高電圧部分、通電時取扱 十分注意。 分解、組立作業時注意！ 板金部品端面、部品製造時充分管理 、 板金端面鋭利箇所有 、 部品端面触指動怪我 場合十分注意作業下。 手 保護手袋着用。 指定部品使用！ 部品難燃性耐電圧安全上特性持 。 従交換部品、 使用 同特性部品使用。特配線 図、部品表 z 印指定安全上重要部品 必指定使用。

17、 部品取付配線引、 元！ 安全上、絶縁材料使用、 基板浮取付部品。 内部配線引発熱部品 高圧部品接近配慮、 必元。 後安全点検！ 取外、 部品、 配線元 、 個所周辺劣化 点検、 外部金属端 子部、 電源刃間絶縁 、安全性確保確認。 （絶縁方法） 電源電源抜、 外、電源入。500V 絶縁抵抗計 用、 電源端子外部露出金属部 端子、端子、端子、入力端子 間、絶縁抵抗値 M 以上 確認。 値以下点検修理 必要。 安全上重要部品 本機使用多電気部品、 機構部品安 全上、 特別特性持。 特性 場合、 外観判別、 部品高 定格（定格電力、耐圧）持使用安全性 維持、 限。 安全上特性持部 品、 配線図、

18、部品表 表示必指定部品番号 使用願。 (1) 配線図 z 表示。 (2) 部品表 z 表示。 指定部品異使用場 合、感電、火災危険生恐 。 注意 注意 4 DN-A300M DIMENSION 5 DN-A300M 整形図 調整部品交換等、類結束 移動場合、作業完了時点 整形。正整形 発生原因。 上面整形 WIRE ARRANGEMENT If wire bundles are untied or moved to perform adjustment or parts replacement etc., be sure to rearrange them neatly as they wer

19、e originally bundled or placed afterward. Otherwise, incorrect arrangement can be a cause of noise generation. Wire arrangement viewed from the top Back Panel side Front Panel side 6 DN-A300M 整形時注意事項 発熱体 ( 抵抗 ) 接触下。 写真配線整。 CAUTION OF WIRE ARRANGEMENT Observe that the wires do not contact heat produc

20、ing parts (heatsink, resistors, fuse, etc.). Fix the wiring of the wire like this photo A B C D E Detail ADetail D Detail B The wire is pulled in the direction of arrow. Clamp Detail CDetail E 7 DN-A300M ADJUSTMENT DC Offset Current / Idling Current Required measurement equipment: DC Voltmeter 1. Se

21、tup (1) Place the unit at an ordinary position avoiding direct air flow from an air-conditioner or fan. Do the adjust- ment at a temperature between 15 C (59 F) and 30 C (86 F). (2) Set control as follows. POWER switch OFF ( j ). VOLUME control fully counterclockwise ( c min.) SPEAKER terminals open

22、: do not connect the speakers, dummy load etc. 2. Adjustment DC Offset Current (1) Connect SPEAKER terminals to the DC Voltmeter. (2) Connect power cord to AC wall outlet, and turn POW- ER switch ON ( h ). (3) Right after power on, adjust test points VR400 and VR401 of Power Amp P.W.B. so that the D

23、C voltmeter reads 10 1mV. (4) Then after 2 minutes warm up adjust VR400 and VR401 so that the DC voltmeter reads 10 1mV. (5) And after 10 minutes warm up adjust VR400 and VR401 so that the DC voltmeter reads 10 0.5mV. DC Offset Current (1) Remove top cover. And then connect DC Voltmeter to the test

24、points TP300 and TP301 of Power Amp P.W.B. (2) Connect power cord to AC wall outlet, and turn POW- ER switch ON ( h ). (3) Right after power on, adjust test points VR403 and VR404 of Power Amp P.W.B. so that the DC voltmeter reads 10 1mV. (4) Then after 2 minutes warm up adjust VR403 and VR404 so th

25、at the DC voltmeter reads 10 1mV. (5) And after 10 minutes warm up adjust VR403 and VR404 so that the DC voltmeter reads 10 0.5mV. 調整 DC 電流 / 電流 調整必要測定器 :DC Voltmeter 1. 準備 (1) 、扇風機風通良場 所避、通常使用状態置。周 囲温度、15 30 調整。 (2) 類、次。 OFF ( j )。 調整 最小反時計方向 ( c ) 。 端子 無負荷 ( 接 続。) 2. 調整 DC 電流 (1) DC Voltmeter 端子接続

26、。 (2) 電源 AC100V（95 105V 範囲可） 接続、電源 ON ( h ) 。 (3) 通電後基板電圧 （10 1mV ）、VR400VR401 調 整。 (4) 2 分後電圧（10 1mV ） 、VR400VR401 調整。 (5) 10 分後電圧（10 0.5mV ） 、VR400VR401 調整。 電流 (1) 、基板 (T.P.300, T.P.301) DC Voltmeter 接続 。 (2) 電源 AC100V（95 105V 範囲可） 接続、電源 ON ( h ) 。 (3) 通電後基板電圧 （10 1mV ）、VR403VR404 調 整。 (4) 2 分後電圧（

27、10 1mV ） 、VR403VR404 調整。 (5) 10 分後電圧（10 0.5mV ） 、VR403VR404 調整。 8 DN-A300M T.P. 301 VR402 VR401 VR403 VR404 Volume DC Voltmete Power Trans T.P. 300 T.P. 301 VR402 VR401 VR403 VR404 Volume DC Voltmeter Power Trans T.P. 300 9 DN-A300M BLOCK DIAGRAM VOLTAGE:+5V VOLTAGE:+15V/-15V VOLTAGE:9.1V VOLTAGE:+5

28、V 10 DN-A300M -MEMO- 11 DN-A300M SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. The semiconductor which described a detailed drawing in a schematic diagram are omitted to list. 主半導体記載。汎用半導体記載省略。 回路図中詳細図半導体記載省略。 UPD78F0502MC(T) (IC109) Functional

29、Block Diagram 12 DN-A300M NJU7313AM (IC108) Pin Function 13 DN-A300M BU4052BCFV (IC101) Pin Function 14 DN-A300M BU2090FS-E2 (IC102) Pin Function Functional Block Diagram 15 DN-A300M PRINTED WIRING BOARDS MAIN P.W.B. UNIT (1/2) COMPONENT SIDE 16 DN-A300M MAIN P.W.B. UNIT(2/2) FOIL SIDE 17 DN-A300M F

30、RONT P.W.B. UNIT (1/2) COMPONENT SIDE 18 DN-A300M FRONT P.W.B. UNIT (2/2) FOIL SIDE 19 DN-A300M NOTE FOR PARTS LIST Parts for which nsp is indicated on this table cannot be supplied. When ordering of part, clearly indicate 1 and I (i) to avoid mis- supplying. Ordering part without stating its part n

31、umber can not be supplied. Part indicated with the mark is not illustrated in the exploded view. Not including General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Not including General-purpose Carbon Chip Resistor in the P.W.Board parts

32、 list. (Refer to the Schematic Diagram for those parts.) WARNING: Parts marked with this symbol z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. ss ss ss ss ss ss RD :2B : 1/8 WF :1%P: RC :2E : 1/4 WG :2%NL : RS:2H : 1/2 WJ :5%NB : RW :3A : 1WK :10%FR : RN

33、 :3D : 2WM :20%F: RK :3F: 3W 3H : 5W RN14K2E182GFR 182 ? 1800=1.8k 0 2 1R2 ? 1.2 1 2R CE04W1H2R2MBP CE:0J: 6.3 VF: 1%HS : CA :1A : 10VG : 2%BP : CS:1C : 16VJ: 5%HR : CQ :1E : 25VK : 10%DL : CK :1V : 35VM : 20%HF : CC :1H : 50VZ: +80%U:UL CP:2A : 100 V20%C:CSA CM :2B : 125 VP: +100%W:UL-CSA CF:2C : 1

34、60 V 0%F: CH :2D : 200 VC : 0.25pF 2E : 250 VD : 0.5pF 2H : 500 V=: 2J: 630 V 222 ? 2200F 0 2 F 222 ? 2200pF=0.0022F 0 2 pF pF 221 ? 220pF 2 (02) 0 (001) 2R2 ? 2.2F 1 2R F AC RD : Carbon2B : 1/8WF: 1%P: Pulse-resistant type RC : Composition2E : 1/4WG: 2%NL : Low noise type RS : Metal oxide film2H :

35、1/2WJ: 5%NB : Non-burning type RW : Winding3A : 1WK: 10%FR : Fuse-resistor RN : Metal film3D : 2WM: 20%F: Lead wire forming RK : Metal mixture3F : 3W 3H : 5W CE : Aluminum foil0J: 6.3VF: 1%HS : High stability type electrolytic CA : Aluminum solid1A : 10VG : 2%BP : Non-polar type electrolytic CS : Ta

36、ntalum electrolytic1C : 16VJ: 5%HR : Ripple-resistant type CQ : Film1E : 25VK : 10%DL : For change and discharge CK : Ceramic1V : 35VM : 20%HF : For assuring high requency CC : Ceramic1H : 50VZ: +80%U: UL part CP : Oil2A : 100V20%C: CSA part CM : Mica2B : 125VP : +100%W : UL-CSA type CF : Metallized

37、2C : 160V0%F: Lead wire forming CH : Metallized2D : 200VC : 0.25pF 2E : 250VD : 0.5pF 2H : 500V=: Others 2J: 630V l l l l lResistors Ex.:RN14K2E182GFR Type ShapePower Resist- Allowable Others and per-anceerror formance Resistance 1 821800 ohm = 1.8 kohm Indicates number of zeros after effective numb

38、er. 2-digit effective number. Units: ohm 1 R21.2 ohm 1-digit effective number. 2-digit effective number, decimal point indicated by R. Units: ohm l l l l lCapacitors Ex.:CE04W1H2R2MBP TypeShapeDielectric Capacity Allowable Others and per- strengtherror formance Capacity (electrolyte only) 2 222200F

39、Indicates number of zeros after effective number. 2-digit effective number. Units: F. 2 R22.2F 1-digit effective number. 2-digit effective number, decimal point indicated by R. Units: F. Capacity (except electrolyte) 2 222200pF=0.0022F (More than 2)Indicates number of zeros after effective number. 2

40、-digit effective number. Units: pF. 2 21220pF (0 or 1)Indicates number of zeros after effective number. 2-digit effective number. Units: pF. When the dielectric strength is indicated in AC, AC is included after the dieelectric strength value. 部品表 部品表 nsp 記載部品供給。 部品発注際特数字 英字 区別 記入。 部品番号表示部品供給。 z 印部品安

41、全上重要部品。交換、安全 性能維持必指定部品使用。 印部品分解図中記載。 汎用抵抗器記載。定数回路図参照願 。 汎用抵抗器記載。定数回路図参 照願。 部品表抵抗器、品名記号読方表参照 。 20 DN-A300M PARTS LIST OF P.W.B. UNIT 本表 nsp 記載部品供給。 Parts for which nsp is indicated on this table cannot be supplied. 本表記載部品、補修用部品製品使用部品一部、形状、寸法異場合。 The parts listed below are for maintenance only, might

42、differ from the parts used in the unit in appearances or dimensions. Note: The symbols in the column Remarks indicate the following destinations. E3 : U.S.A. & Canada modelE2 : Europe model MAIN P.W.B. UNIT ASSY Ref. No.Part No.Part NameRemarksQty New SEMICONDUCTORS GROUP IC100963239002480SIC NJM456

43、5MDJ121456500040S* IC101-10600D9630024004IC NJM2068MJ121206800020S IC107963239002470SIC NJM2072MJ121207200010S* IC10800D9630132802IC NJU7313AMJ040731300030S IC109963243002750SIC UPD78F0502MC(T)J020780502540S* IC110963243002760SIC M24C02J000240200140S* IC11190M-HC109570RIC KIA7042PJ125704200010S IC11

44、200D9600100301IC KIA7812APIJ126781200040S IC11300D9600174900IC KIA7815APIJ126781500000S IC11400D9630021502IC KIA7915PIJ126791500030S IC11500D9600159501IC KIA7805APIJ126780500110S IC11600D9600239104IC KIA7806APIJ126780600130S IC117,11800D9630024004IC NJM2068MJ121206800020S IC11900D9600174900IC KIA781

45、5APIJ126781500000S Q102-10500D9630044301TR KTC2875B(MB)J5222875B0010S Q10800D9630267308TR KRA101SJ520010100010S Q10900D9630121606TR KRC107SJ522107S00210S Q11000D9630267308TR KRA101SJ520010100010S Q11200D9630121606TR KRC107SJ522107S00210S Q11400D9630121606TR KRC107SJ522107S00210S Q11500D9630267308TR

46、KRA101SJ520010100010S Q11600D9630066606TR KTC3875Y(ALY)J5223875Y0210S Q11700D9630044301TR KTC2875B(MB)J5222875B0010S Q11800D9630121606TR KRC107SJ522107S00210S Q119,12000D9630044301TR KTC2875B(MB)J5222875B0010S Q12100D9630066606TR KTC3875Y(ALY)J5223875Y0210S Q12200D9600196205TR KSA992FJ5000992F0050S

47、Q123,12400D9600196506TR KSC1845FJ5021845F0000S Q125,12600D9630121606TR KRC107SJ522107S00210S Q127,12800D9630044301TR KTC2875B(MB)J5222875B0010S Q12900D9630267308TR KRA101SJ520010100010S Q130-13300D9630121606TR KRC107SJ522107S00210S Q13600D9630121606TR KRC107SJ522107S00210S Q30000D9630066606TR KTC387

48、5Y(ALY)J5223875Y0210S D104-107963201002490SD,SWITCHING 1N4148WSK005041483230S* D10800D9630328409D,SWITCHING 1N4007K000400700010S D109-111963201002490SD,SWITCHING 1N4148WSK005041483230S* D112,113963203002450SD,RECTIFIER 400V/50AK047040500000S* D114,115963201002490SD,SWITCHING 1N4148WSK005041483230S*

49、D116963203002460SD,RECTIFIER KPBC3506MB356 600V 35AK047350600010S* D117963201002490SD,SWITCHING 1N4148WSK005041483230S* D300-30300D9630328409D,SWITCHING 1N4007K000400700010S D304,305963201002490SD,SWITCHING 1N4148WSK005041483230S* ZD100-10200D9600095500D,ZENER MTZJ5.1BK06005R144520S 21 DN-A300M RESISTORS GROUP R277-280nspR,METAL 0.22-J,1W-RC060R22065050S R337nspR,METAL FILM 470-J,1WC060047165050S R338nspR,METAL FILM 10-J,1/4WC060010063050S R347nspR,METAL FILM 10-J,1/4WC060010063050S VR100,10196367