Marantz-SD4051-tape-sm 维修电路原理图.pdf

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1、SD4051Please use this service manual with referring to the user guide ( D.F.U. ) without fail.ServiceManualSD4051SD4051Cassette DeckSD4051 /F B/N1BPart no. 90M16CW855010First Issue 2006.07MZTABLE OF CONTENTSSECTION PAGE 1. TECHNICAL SPECIFICATIONS . 1 2. ADJUSTMENT PROCEDURE . 2 3. WIRING DIAGRAM .

2、7 4. BLOCK DIAGRAM .9 5. SCHEMATIC DIAGRAM .11 6. PARTS LOCATION .21 7. MICROPROCESSOR AND IC DATA . 25 8. EXPLODED VIEW AND PARTS LIST . 27 9. ELECTRICAL PARTS LIST .31 10. ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE . 45RESETMINPHONESCONTROLPITCHPLAY+RESETCOUNTERCOUNTERREC/PLAYEJECTAPLAYPLAYHI

3、GHPAUSENORMALREC MUTEREC LEVELSYNC REVSTOPPOWERON/OFFSTOPCONT PLAYBOFFPLAYOFFRECBREV. MODEDOLBY NRCASSETTE DECK SD4051EJECTTIMERMAXDUBBING SPEEDAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSERESETMINPHONESCONTROLPITCHPLAY+RESETCOUNTERCOUNTERREC/PLAYEJEC

4、TAPLAYPLAYHIGHPAUSENORMALREC MUTERECREC LEVELSYNC REVSTOPPOWERON/OFFSTOPBOFFPLAYOFFRECBREV. MODEDOLBY NREJECTTIMERMAXDUBBING SPEEDAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSERadioFans.CN 收音机爱 好者资料库MARANTZ DESIGN AND SERVICEUsing superior design and s

5、elected high grade components, MARANTZ company has created the ultimate in stereo sound.Only original MARANTZ parts 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 Ma

6、rantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In both cases, the correct 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 quantitie

7、s required 3. Description of parts 4. Model number for which part is required 5. Way of shipment 6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to

8、 returning to customer, measure the resistance between either primary AC cord connector pins ( with unit NOT connected 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

9、 repaired or corrected before AC power is applied, and verifi ed before it is return to the user/customer. In case of diffi culties, do not hesitate to contact the Technical Department at above mentioned address. 060607MZUSAMARANTZ AMERICA, INC100 CORPORATE DRIVEMAHWAH, NEW JERSEY 07430USAEUROPE / T

10、RADINGMARANTZ EUROPE B.V.P. O. BOX 8744, BUILDING SILVERPOINTBEEMDSTRAAT 11, 5653 MA EINDHOVENTHE NETHERLANDSPHONE : +31 - 40 - 2507844FAX: +31 - 40 - 2507860AUSTRALIAQualiFi Pty Ltd,24 LIONEL ROAD,MT. WAVERLEY VIC 3149AUSTRALIAPHONE : +61 - (0)3 - 9543 - 1522FAX: +61 - (0)3 - 9543 - 3677NEW ZEALAND

11、WILDASH AUDIO SYSTEMS NZ14 MALVERN ROAD MT ALBERTAUCKLAND NEW ZEALANDPHONE : +64 - 9 - 8451958FAX: +64 - 9 - 8463554THAILANDMRZ STANDARD CO., LTD746 - 754 MAHACHAI ROAD.,WANGBURAPAPIROM, PHRANAKORN,BANGKOK, 10200 THAILANDPHONE : +66 - 2 - 222 9181FAX: +66 - 2 - 224 6795TAIWANPAI- YUING CO., LTD.6 TH

12、 FL NO, 148 SUNG KIANG ROAD,TAIPEI, 10429, TAIWAN R.O.C.PHONE : +886 - 2 - 25221304FAX: +886 - 2 - 25630415MALAYSIAWO KEE HONG ELECTRONICS SDN. BHD.2ND FLOOR BANGUNAN INFINITE CENTRELOT 1, JALAN 13/6, 46200 PETALING JAYASELANGOR DARUL EHSAN, MALAYSIAPHONE : +60 - 3 - 7954 8088FAX: +60 - 3 - 7954 708

13、8KOREAMARANTZ KOREA CO., LTD.ROOM 604, ELECTRO OFFICE, 16-58,HANGGANG-RO 3GA, YONGSAN-KU,SEOUL, 140-013, KOREAPHONE : +82 - 2 - 323 - 2155FAX: +82 - 2 - 323 - 2154SINGAPOREWO KEE HONG DISTRIBUTION PTE LTDNo.1 JALAN KILANG TIMOR#08-03 PACIFIC TECH CENTRESINGAPORE 159303PHONE : +65 6376 0338FAX: +65 6

14、376 0166CANADAMARANTZ 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.CHINAMARANTZ SHANGHAI TRADING LTD.ROOM.506 SHANGHAI LIGHT INDUSTRY

15、MANSION1578 NANJING (WEST) ROAD SHANGHAICHINATEL: 021 - 6248 - 1064FAX: 021 - 6248 - 3565RadioFans.CN 收音机爱 好者资料库11. TECHNICAL SPECIFICATIONSType Vertical tape loading; 4-track 2-channel stereo double cassette deckHeads Playback head 1 Recording/Playback head 1 Erase head (Double-gap ferrite) 1Motors

16、 DC servo motor 2Tape Speed 4.8 cm/sec. 9.5 cm/sec. (When high speed dubbing)Fast Forward, Rewind Time Approx. 110 sec. with a C-60 cassetteRecording Bias Approx. 100 kHzOverall S/N Ratio (at 3% THD level) Dolby B NR on: more than 68 dB (CCIR/ARM)Overall Frequency Response 25 - 18,000 Hz 3 dB (at -

17、20 dB, Metal tape Play back) Channel Separation More than 40 dB (at 1 kHz) Wow & Flutter 0.09 % WRMS, 0.1 % W. PEAK Inputs LINE 100 mV input level at maximum Input impedance: 50 kohms unbalanced Output LINE 460 mV (0 dB) output level at maximum (with 47 kohms load, recorded level of 200 nWb/mm) PHON

18、ES 0.95 mW output level at maximum (optimum load impedance 8 ohms) Power Requirement AC 230V 50Hz /NPower Consumption 16 W Dimensions 440 (W) 124 (H) 286 (D) mm Weight 4.0 kg (8.58 lbs.)Dolby noise reduction and HX Pro headroom extension manufactured under license from Dolby Laboratories Licensing C

19、orporation. HX Pro originated by Bang & Olufsen.DOLBY, the double-D symbol and HX PRO are trademarks of Dolby Laboratories Licensing Corporation.E EIPHO ECOOLPI CHPL YE ECOECOEEC/PL YE ECPL YPL YHI HPEOLEC EEC LEVELY C EVOPPOEO /OOPCO PL YOPL YOECEV. ODEDOL Y CE E DECK D4051E ECI EXDI PEEDE EIPHO EC

20、OOLPI CHPL YE ECOECOEEC/PL YE ECPL YPL YHI HPEOLEC EECEC LEVELY C EVOPPOEO /OOPOPL YOECEV. ODEDOL Y E ECI EXDI PEED440.012.0112.010.011.0265.0286.0(mm)本製品及HX Pro実施権基製造。HX Pro考案。Dolby、HX ProD記号 商標。型式 . 4 2録音方式 . 交流方式 . 録音再生 1 再生 1 消去 1 . DC 2 . 0.09 WRMS0.1 WPEAK（EIAJ）周波数特性 . 30 Hz19 kHz 3 dB . 30 Hz

21、18 kHz 3 dB . 30 Hz17 kHz 3 dBS/N比 . 58 dB（EIAJ/録音聴感補正）DOLBY-B NR ON時 10 dB 改善 （5 kHz以上）入力端子 . 100 mV（50 k ohm） 2出力端子 . 460 mV（3 k ohm） 2 . 0.95 mW（8 ohms1.2 k ohms） 2電源 . AC 100 V 50/60 Hz /F消費電力 . 16 W最大外形寸法幅 . 440 mm高 . 124 mm奥行 . 286 mm質量 . 4.0 kg 付属品 . 2組接続 . 1本 （RC455SD） . 1個単3乾電池 （SUM-3） . 2本

22、22. ADJUSTMENT PROCEDURE2-1 MECHANICAL ADJUSTMENT2-1-1 Wow and flutter (playback method)In both FWD and REV play modes, these measurements should be made at the beginning, middle, and the end of the tape.1. Connect a wow-and-flutter meter to the LINE OUT.2. Load and play a TEAC MTT-111N test tape.3.

23、 Check that readings on the wow-and-flutter meter is within 0.09 % WRMS ( 0.1 % W. PEAK).2-1-2 Tape speed1. Connect a frequency counter to the LINE OUT.2. Load a TEAC MTT-111 N test tape and play in FWD direction the beginning of the test tape.3. Adjust each variable resistor to get the following va

24、lues.Fig. 2-14. In play mode, check that the following values are obtained at the beginning and end of the tape. Speed drifting : Within 120 Hz(HIGH speed) Within 60 Hz(LOW speed)2-1-3 Reel torque Load the cassette torque meter on the deck and read the pointer indication on the dial scale for each t

25、ape transport operation. The measured torque should be within the following specified values. Take-up : 30 to 70 g-cm Supply : 1.5 to 6 g-cm FF/REV : 70 to 150 g-cmTorque metierMTT-8111W : Forward torque & back tensionMTT-8121W : Reverse torque & back tensionMTT-8242 : Fast forward & rewind static t

26、orqueW333W332W332 to W333 : ShortHIGH speedW332 to W333 : OpenLOW speed VR2HIVR1LOWR3 LOW R4 HICONTROL PWB2-1 機構部調整2-1-1 （再生法）FWD, REV両方向巻始、中間、巻終測定。1. LINEOUT端子接続。2. MTT-111N再生。3. 値0.09 WRMS0.1 WPEAK （EIAJ）以下確認。 2-1-2 1. LINEOUT端子周波数接続。2. MTT-111N巻始部FWD方向再生。3. 周波数値下表範囲内、各調整VR調整。Adjustment point調整個所A

27、djustment value調整値PLAYBACKHIGH speedLOW speed VR2VR1 6,000 30Hz3,000 20HzREC/PLAYHIGH speedLOW speed R4 R3 6,000 30Hz3,000 20Hz4. 巻始巻終再生、変動幅確認。 変動幅 : 120 Hz以内（） 60 Hz以内（）2-1-3 型測定値下記範囲内確認。 : 3070 g-cm : 1.56 g-cm 早送/巻戻 : 70150 g-cmMTT-8111W : 巻取(FWD用)MTT-8121W : 巻取(REV用)MTT-8242 : 早送/巻戻32-2 ELECTRIC

28、AL ADJUSTMENT2-2-1 Precautions Before performing adjustments and checks clean and demagnetize the entire tape parh. ln general, adjustments and checks are made in the order of Lch then Rch. Double REF. Nos. indicate Lch/Rch. (Example R11/R21) 0dB is referenced to 0.775V. The AC voltmeter used in the

29、 procedures must have an input impedance of 1 M or more. Unless specified otherwise, adjustments and checks are made in FWD direction.2-2-2 Adjustment locationsP303R13R23R12 R22MAIN PWBL304L203L103R14 LR24 RTP4TP3L201L101W56W29R11 LR21 RDC voltmeterAC voltmeterFrequency CounterFig. 2-22-2 部調整2-2-1 注

30、意 部調整確認前、走行系消磁清掃行。 特指定限、調整Lch、Rch順序行。尚、R11/R21記回路番号Lch/Rch示。 0dB0.775V。 測定使用計入力、1M以上使用。 特指定場合、調整確認FWD方向行。2-2-2 調整42-2-3 Playback performance 再生系Deck settings : Mode : PLAY DOLBY NR Switch : OFFTEAC test tapes : MTT-150C : For Dolby lavel calibration MTT-25702 : For playback frequency response check

31、NORMAL tape MTT-5513 : For S/N check NORMAL tapeITEM項目SETTING設定INPUT SIGNAL入力信号ADJUSTMENTS調整個所MEASURINGPOINTS, RESULT測定個所調整値REMARKS備考1. Head azimuth adjustment 調整Connection : Fig. 2-4 Check and adjust in FWD, REV respectively FWD、REV 調整確認MTT-150CCheckLINE OUT : Phase : within 45位相 : 45以内 (Fig. 2-5)

32、FWD azimuth REV azimuthMTT-25702 (12.5 kHz)Azimuth screws調整LINE OUT: Maximum output level at L & R -ch Lch, Rch出力最大2. DOLBY level Connection : Fig. 2-2 FWD, PLAYMTT-150CR11 / R21TP1(W29) / TP2(W56) : - 6 dBPLAYBACK(DECK I)R12 / R22REC/PLAY(DECK II)3. Playback output level 再生出力Connection : Fig. 2-3 F

33、WD/REV PLAYMTT-150CCheckLINE OUT : - 4.5 1 dBRef. output level 基準出力4. Meter level MTT-150CCheckLEVEL METER : mark 1dot5.PHONES output level PHONES 出力MTT-150CCheckPHONES : - 19 3 dB8 load 8 負荷6. Playback frequency response 再生周波数特性Connection : Fig. 2-3MTT-25702Check+ 4 dB- 4 dB2501k12.5k (Hz)7. Playba

34、ck S/N ratio 再生S/N比Connection : Fig. 2-3MTT-5513 Playback the leader tape portion 部再生Check46 dB min.Ratio of ref. level to noise 基準出力比5ITEM項目SETTING設定INPUT SIGNAL入力信号ADJUSTMENTS調整個所MEASURINGPOINTS, RESULT測定個所調整値REMARKS備考8. SpecifiedLINE inputlevel規定入力Connection : Fig. 2-3Mode : RECLINE IN :400 Hz /

35、- 9 dBREC LEVELLINE OUT :- 4.5 dBAfter adjusting,do not move(Specific position)調整後動（規定位置）9. Bias oscfrequency発振周波数Connection : Fig. 2-2TAPE : MTT-5513Mode : RECLINE IN :No signal無信号L301P303 Pin 2 :100 kHz10. Step up coilConnection : Fig. 2-2TAPE : MTT-5563Mode : RECLINE IN :No signal無信号L103 / L203TP

36、3 / TP4 :Min. DC voltageDC電圧最小11. Record bias録音Connection:Fig. 2-3TAPE : MTT-5513LINE IN :250 Hz / 10 kHz- 42 dBR14 / R24LINE OUT :Nearly equal levelat both frequencies両周波数録再出力同（ 0.5 dB)12. MPX filterMPXConnection : Fig. 2-3Mode : RECLINE IN :19 kHz / - 12 dBL101 / L20130 dB min.Ratio of ref.level t

37、o signal基準出力対比13. Recordlevel録音Connection : Fig. 2-3TAPE : MTT-5513LINE IN :400 Hz / - 12 dBR13/R23LINE OUT:- 7.5 1 dBTAPE : MTT-5563CheckLINE OUT:- 7.5 1 dB14. Totalharmonicdistortion総合歪率Connection : Fig. 2-3TAPE : MTT-5513 MTT-5563LINE IN :400 Hz / - 12 dBCheckNORMAL : 2.0 % or lessHIGH pos. : 2.5

38、 % or lessMETAL : 3.0 % or less15. Overallfrequencyresponse録再周波数特性Connection : Fig. 2-3TAPE : MTT-5513 MTT-5563LINE IN :40 Hz 12.5 kHz- 42 dBCheck+ 6 dB- 6 dB40 250 12.5k (Hz)16. Overall S/Nratio総合S/N比Connection : Fig. 2-3TAPE : MTT-5513 MTT-5563LINE IN :No signal無信号CheckNORMAL : 45 dB min.HIGH pos.

39、 : 46 dB min.METAL : 46 dB min.Ratio of ref.level to noise基準出力比2-2-4 Recording performance 録音系Deck settings : Mode : REC/PLAY DOLBY NR Switch : OFF REC LEVEL Control : Specified position (ltem8)TEAC recording test tapes: MTT-5513 : For NORMAL MTT-5563 : For HIGH position6ITEM項目SETTING設定INPUT SIGNAL入

40、力信号ADJUSTMENTS調整個所MEASURINGPOINTS, RESULT測定個所調整値REMARKS備考17. Erase efficiency消去率Connection : Fig. 2-3TAPE: MTT-55631kHz B.P.F inLINE IN :1 kHz / + 1 dBCheck65 dB min.Ratio of the 1 kHzrecorded portion to the erased portion.未消去部分消去部分比18. REC MUTE functionREC MUTE効果Connection : Fig. 2-3TAPE: MTT-55631

41、kHz B.P.F inLINE IN :1 kHz / + 1 dBCheck55 dB min.Ratio of the 1 kHzrecorded portion to the REC MUTE portion.録音部分REC MUTE部分比19. Channel separation Connection : Fig. 2-3TAPE : MTT-55631kHz B.P.F inLINE IN :Lch 1 kHz / - 9 dBRch No signal無信号Check35 dB min.Ratio of Lch (1kHz) to Rch(no signal).Lch(lkHz

42、)Rch(無信号)比20. Adjacent track crosstalk間Connection : Fig. 2-3TAPE : MTT-5563LINE IN :Lch No signal無信号Rch 125Hz / - 9 dBCheck40 dB min.Invert tape and play Rch track. Check leakage level against the output reference of previously recorded portion.反転再生時Rch出力比(同位相)(逆位相)RESETMINPHONESCONTROLPITCHPLAY+RES

43、ETCOUNTERCOUNTERREC/PLAYEJECTAPLAYPLAYHIGHPAUSENORMALREC MUTEREC LEVELSYNC REVSTOPPOWERON/OFFSTOPCONT PLAYBOFFPLAYOFFRECBREV. MODEDOLBY NRCASSETTE DECK SD4051EJECTTIMERMAXDUBBING SPEEDAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSERESETMINPHONESCONTROLP

44、ITCHPLAY+RESETCOUNTERCOUNTERREC/PLAYEJECTAPLAYPLAYHIGHPAUSENORMALREC MUTERECREC LEVELSYNC REVSTOPPOWERON/OFFSTOPBOFFPLAYOFFRECBREV. MODEDOLBY NREJECTTIMERMAXDUBBING SPEEDAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSERESETMINPHONESCONTROLPITCHPLAY+RESET

45、COUNTERCOUNTERREC/PLAYEJECTAPLAYPLAYHIGHPAUSENORMALREC MUTEREC LEVELSYNC REVSTOPPOWERON/OFFSTOPCONT PLAYBOFFPLAYOFFRECBREV. MODEDOLBY NRCASSETTE DECK SD4051EJECTTIMERMAXDUBBING SPEEDAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSERESETMINPHONESCONTROLPIT

46、CHPLAY+RESETCOUNTERCOUNTERREC/PLAYEJECTAPLAYPLAYHIGHPAUSENORMALREC MUTERECREC LEVELSYNC REVSTOPPOWERON/OFFSTOPBOFFPLAYOFFRECBREV. MODEDOLBY NREJECTTIMERMAXDUBBING SPEEDAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEAUTO TAPE SELECT/HIGH SPEED DUBBINGAUTO REVERSEOscillaterOscilloscopeDistortion Analy

47、zer1 kHz FilterSD4051AC voltmeterS1RLS2RLLINE INLINE OUTOscilloscopeAC voltmeterSD4051SRLHORVERLINE OUT0(in phase)4590135180(out of phase)Fig. 2-3Fig. 2-5Fig. 2-4783. WIRING DIAGRAM+-ABMECH I (A)1234567891012345678910J319CONTROL PWB123456789101112123456789101112J307123456789101112P307MAIN PWBDECK I

48、(A)RPLAY HEAD123123LPLAY HEAD123P301470PLAYSOL+-ABCrO2TAPEMECH II (B)123456789123456789J308123456789P30812345P302123456123456LR/P HEADDECK II (B)E HEADRR/P HEAD12P303123456123456J311123456P309123J503123123P5034701234567891011121312345678910111213J320PLAYSOLTAPEMETALCrO2F.RECR.REC1212P318VR PWB123123

49、P306123J306PHONE PWB123P304123123P30512345J401TRANSF. B PWBREMOTE PWB1212P50412J504123456P501123456J501123123J304SLIDE PWBKEY PWB32PWBPWB6B : HEAD + PWBPWB6A : HEAD + PWB1094. BLOCK DIAGRAMPB AMPDECK I (A)PLAY HEADPB EQMETER AMPFL DISPLAYOUTPUTCPSPB AMPHI SPEEDDECK II (B)R/P HEADRECPLAYPB EQDOLBY NR

50、 BPHONES AMPPHONESINPUTREC AMPREC EQ+VBIAS ADJ.HX PROE HEADBIASOSC-V11125. SCHEMATIC DIAGRAMR/P NRPLAU M.R/P H. IIDECK I (A)DECK II (B)REC M. II1781414817PLAY IPLAY II16V16V16VU30516V16VU302G7G3G1G5G3G1G5G6G4G4CrO2 2DOLBY NR-7VGNDCrO2 IQ6R2124.7KR2091KR11456R30647KU327DTA124ES231C2080.027uU328DTA124