Marantz-DR4160-cd-sm 维修电路原理图.pdf

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1、RDR4160DR4160CD RecorderServiceManualDR4160 /F1N, /U1BDR4160437W855010 SIGFirst Issue:2000.12Please use this service manual with referring to the user guide (D.F.U) without fail.修理際、必取扱説明書準備操作方法確認上作業行。chapterTechnical Specification and Measurement setup.1-1, 1-2Location of printed circuit boards.1-3

2、Warnings & Safety.2-1Dismantling Instructions.4-1 to 4-5Service hints.5-1 to 5-3Service Test Program.5-4 to 5-6BLOCK DIAGRAMS .6-1 to 6-5WIRING DIAGRAM.6-6POWER BOARD (for orientation only) .7-3 to 7-4FRONT BOARD.7-5 to 7-6KEY BOARD left.7-7KEY BOARD right.7-8chapterHEADPHONE/MICROPHONE BOARD .7-9 t

3、o 7-10INTERFACE BOARD.7-11 to 7-133CDC MODULE.8-1 to 8-9EXPLODED VIEWSapparatus.10-13CDC module .8-8 to 8-9MECHANICAL PARTSLIST see Exploded viewsELECTRICAL PARTSLIST.10-2 ffTABLE OF CONTENTSSERVICINGFor servicing DR4160, the sets can be divided into two parts:1. Except for the Power board (Switched

4、 Mode Power Supply) and the CD-R/W module the set has tobe repaired on component level.2. The Power board and the CD-R/W module will be exchanged completely in case of a failure.The defective CD-R/W module has to be returned for central repair.Available circuit descriptions:The Basics of Compact Dis

5、c Recordable/Rewritable4822 725 252423rd generation Compact Disc Recording3104 125 40100MULTIDISCAUTO LEVEL CONTROLCHANGER/+LORTNJOGCOCD1CD2CD3CDRAUXCD-TEXT EDITINGRECORDPROGCD CHANGEPLAY/PAUSECD RECORDER DR4160REPEATBALANCEON/OFFSTOPTEXTCD TEXTDISPLAYLEVEL RECSHUFFLETR EDITPHONESLEVELMICCLOSEOPEN/+

6、CLOSEOPEN/NOYESFINALIZEERASEREC TYPECOMPLE CDCDCDLEVELRadioFans.CN 收音机爱 好者资料库1-1TECHNICAL SPECIFICATIONGeneral:Mains voltage:120V / 60Hz for DR4160/U1BPower consumption: ? 16W 1W in stand byInput / Output:Analog in:input sensitivity: 500mVrmsmax. input voltage : 2,8Vrmsinput impedance: 47kAnalog out

7、:output level: 2Vrms2dB at no loadoutput impedance: 200Microphone in:input sensitivity: 1mVrmsmax. input voltage : 50mVrmsinput impedance: 2kDigital in (acc. IEC958):input level: 0,5Vppinput impedance: 75Digital out (acc. IEC958):output level: 0,5Vppoutput impedance: 75Headphone:output level: 4,4Vpp

8、 at no loadoutput impedance: 120frequency response: 20 - 20.000 Hz 3dBdistortion: 0,01% at 1 kHz and -6dB output level at 120channel difference : 3dB at 1 kHzchannel crosstalk: -50dB at 1kHzAUDIO PERFORMANCE 3CDC module:To be measured on ANALOG OUTsocket.frequency response: 20 - 20.000 Hz 0,6dBsigna

9、l/noise ratio: 115dB (120dB A-weighted)distortion: -88dB at 1 kHz (-91dB typ.)channel difference: 0,5dB at 1 kHzchannel crosstalk: -115dB at 1kHz(-120dB typ.)de emphasis: 0 or 15/50s switched automatically by subcode on the disclaseroutput power: 500Wwave length: 780 20nmCD-RW module:To be measured

10、on ANALOG OUTsocket.frequency response: 20 - 20.000 Hz 0,3dB (1dB recording)signal/noise ratio: 95dB (98dB A-weighted)distortion: -86dB at 1 kHz (-83dB recording)channel difference: 0,5dB at 1 kHzchannel crosstalk: -86dB at 1kHz (-74dB recording)de emphasis: 0 or 15/50s switched automatically by sub

11、code on the disclaser (laser class 3B)output power: 1mW max. during reading20mW max. during writingwave length: 780 20nm100V / 50-60Hz for DR4160/F1NRadioFans.CN 收音机爱 好者资料库1-2SYSTEM CODERC KEYyCOMMAND CODECD202612CDRBRIGHTNESSStandby202671TRACK INCR.-26114CD TEXT2026881202601220260232026034202604520

12、26056202606720260782026089202609TEXT EDIT2026820202600PROGRAM202636NO202649YES202687PLAY202653?29202633?202632STOP20265452026506;202652PAUSE202648SHUFFLE202628REPEAT202629CD1202055CD2202056CD3202057CDR262663RC5 code RC283505, 130300Remote Control:RC5 commandsRC283521TECHNICAL SPECIFICATIONLRLEVEL ME

13、TERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BDUTCDUse Audio Signal Disc SBC429 4822 397 30184(replaces test disc 3) MEASUREMENT SETUP1-3FRONT BOARDINTERFACE BOARDHEADPHONE/MIC BOARDSWITCHED MODEPOWER SUPPLYNTCloccation of pcbs, 240200KEY BOARD RIGHTKEY

14、BOARD LEFTLOCATION OF PRINTED BOARDSpicture 12-1 WARNINGAll ICs and many other semiconductors are susceptible toelectrostatic discharges (ESD). Careless handling duringrepair can reduce life drastically.When repairing, make sure that you are connected with thesame potential as the mass of the set vi

15、a a wristband withresistance. Keep components and tools at this potential.f ATTENTIONTous les IC et beaucoup dautres semi-conducteurs sontsensibles aux dcharges statiques (ESD). Leur longvitepourrait tre considrablement courte par le fait quaucuneprcaution nst prise leur manipulation.Lors de rparati

16、ons, sassurer de bien tre reli au mmepotentiel que la masse de lappareil et enfileer le braceletserti dune rsistance de scurit.Veiller ce que les composants ainsi que les outils que lonutilise soient galement ce potentiel.d WARNUNGAlle ICs und viele andere Halbleiter sind empfindlichgegenber elektro

17、statischen Entladungen (ESD).Unsorgfltige Behandlung im Reparaturfall kann dieLebensdauer drastisch reduzieren.Sorgen Sie dafr, da Sie im Reparaturfall ber ein Puls-armband mit Widerstand mit dem Massepotential desGertes verbunden sind.Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesemPotentia

18、l. WAARSCHUWINGAlle ICs en vele andere halfgeleiders zijn gevoelig voorelectrostatische ontladingen (ESD).Onzorgvuldig behandelen tijdens reparatie kan de levensduurdrastisch doen vermindern. Zorg ervoor dat u tijdens reparatievia een polsband met weerstand verbonden bent met hetzelfdepotentiaal als

19、 de massa van het apparaat.Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.i AVVERTIMENTOTutti IC e parecchi semi-conduttori sono sensibili alle scarichestatiche (ESD).La loro longevit potrebbe essere fortemente ridatta in caso dinon osservazione della pi grande cauzione alla loromanipo

20、lazione. Durante le riparationi occorre quindi esserecollegato allo stesso potenziale che quello della massadelpparecchio tramite un braccialetto a resistenza.Assicurarsi che i componenti e anche gli utensili con quali silavora siano anche a questo potenziale.Safety regulations require that the set

21、be restored to itsoriginal condition and that parts which are identical withthose specified be used.Safety components are marked by the symboliLe norme di sicurezza estigono che lapparecchio vengarimesso nelle condizioni originali e che siano utilizzati ipezzi di ricambiago identici a quelli specifi

22、cati.Componenty di sicurezza sono marcati conVeiligheidsbepalingen vereisen, dat het apparaat in zijnoorspronkeliijke toestand wordt teruggebracht en datonderdelen, identiek aan de gespecificeerde, worden toegepast.De Veiligheidsonderdelen zijn aangeduid met het symbools Varning !Osynlig laserstrlni

23、ng nr apparaten r ppnad ochsprren r urkopplad. Betrakta ej strlen. Advarsel !Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Undg udsaettelse for strling. Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laseristeilylle. l katso steeseen

24、 !fPour votre scurite, ces documents doivent tre utiliss pardes spcialistes agrs, seuls habilits rparer votreappareil en panne.ESDSAFETYdBei jeder Reparatur sind die geltenden Sicherheitsvor-schriften zu beachten. Der Originalzustand des Gertesdarf nicht verndert werden. Fr Reparaturen sind Original

25、-ersatzteile zu verwenden.Sicherheitsbauteile sind durch das Symbol markiert.fLes normes de scurit exigent que lappareil soit remis ltat dorigine et que soient utilises les pices derechange identiques celles spcifies.Les composants de scurit sont marqusCLASS 1LASER PRODUCT DANGER: Invisible laser ra

26、diation when open.?After servicing and before returning the set to customerperform a leakage current measurement test from all exposed metal parts to earth ground, to assure noshock hazard exists.The leakage current must not exceed 0.5mA.AVOID DIRECT EXPOSURE TO BEAM. AVAILABLE ESD PROTECTION EQUIPM

27、ENT : anti-static table matlarge 1200 x650 x1.25mm4822 466 10953small 600 x650 x1.25mm4822 466 10958anti-static wristband4822 395 10223connection box (3 press stud connections, 1M)4822 320 11307extendible cable (2m, 2M, to connect wristband to connection box)4822 320 11305connecting cable (3m, 2M, t

28、o connect table mat to connection box)4822 320 11306earth cable (1M, to connect any product to mat or to connection box) 4822 320 11308KIT ESD3 (combining all 6 prior products - small table mat)4822 310 10671wristband tester4822 344 13999WARNINGS & SAFETY4-1DISMANTLING INSTRUCTIONSDismantling the To

29、p Coverpicture 2 Remove 9 screws as shown in picture 2. Raise top cover at the rear and pull it backwards.Dismantling the Tray Coverpicture 3picture 4bottom view To release the cover from the catch on the tray pull itfrontwards on bottom side as shown in picture 4. Pull the cover up.4-2DISMANTLING I

30、NSTRUCTIONSDismantling the Front CabinetDismantling the 3CDC modulepicture 5picture 6 Remove tray cover first see description before. Disconnect flexfoil cables to interface board and CDR module. Release catches on top as shown in picture 5 and turn front cabinet away.Take care of the flexfoil cable

31、s connecting the key boards! Place front cabinet as shown in picture 6. Remove 2 screws on front side first see pictures 7.picture 74-3Dismantling the CDC modulecontinuedDISMANTLING INSTRUCTIONS Dismantle front cabinet as described before. Move the tray a few centimetres out to get accessto the fast

32、ening screws at the rear. Remove the 3 screws as shown in picture 8. Put the tray back and move the complete modulebackwards to release catches on bottom cabinet. for orientation see picture 9 and 10.picture 8picture 9picture 11 Pull the module on front side up and turn itout as shown in picture 11.

33、 Put the module to a proper service position. see also chapter SERVICE HINTS To get the set operating mount front cabinetand connect flexfoil cables to front boardagain.picture 104-4DISMANTLING INSTRUCTIONSDismantling the CDR module Remove 3 screws as as indicated in picture 12. Disconnect all cable

34、s. Move the module backwards to release the catch onpos. 205 (see exploded view) Raise the module on the rear and turn it out.picture 12picture 13Fixation by a catch onright front-side4-5DISMANTLING INSTRUCTIONSDismantling the Power board Disconnect all cables. Remove 3 screws as as indicated in pic

35、ture 14. Release the catches on the plastic supports. Move the board backwards to release the catch onleft front-side. Lift the module on the rear and turn it out.remark: space to CDR module will be very tightpicture 14picture 15Fixation by a catch on leftrear-side5-1SERVICE HINTSSERVICE TOOLSTORX T

36、10 screwdriver with shaftlength 150mm .4822 395 50423TORX screwdriver set SBC 163.4822 295 50145Audio signal disc SBC 429.4822 397 30184Playability test disc SBC444.4822 397 30245Test disc 5(disc without errors) +Test disc 5A (disc with dropout errors, black spots and fingerprints)SBC 426/426A .4822

37、 397 30096Burn in test disc (65 min. 1kHz signal at -30dB level without pause).4822 397 30155HANDLING CHIP COMPONENTS5-2SERVICE HINTSGeneral Service positionFor repairs on:Front BoardPower BoardInterface BoardService position Key BoardsAfter dismantling the front cabinet as described inchapter 4-2 t

38、he front unit can be placed on 3CDC- andCDR module and be re-connected again.picture 16picture 175-3SERVICE HINTSService position 3CDC ModuleService position Headphone/Microphone Boardpicture 18picture 20picture 19 Dismantle front cabinet as described in chapter 4-2. Dismantle Headphone/Microphone B

39、oard and put itthrough the opening for the 3CDC-tray in frontcabinet. Mount front cabinet provisional and re-connectflexfoil cables to Front Board.Dismantle the 3CDC module as describedin chapter 4-2 to 4-3 and place it in thedesired service position.5-45-4Display showsversion number of the P - soft

40、ware.CDR785 servtest CDC, 070400*To leave Service Testprogram plug mains cord off.SERVICE TESTPROGRAMCD-CHANGER MODULEThe CD PLAY TEST is intended to be usedfor continuously playing a disc in order to detect intermittent or not reproduciblefailures. The error code indicates wherethe failure can be f

41、ound.1)YCD PLAY TEST 1)NCD is in normalPLAY mode.In case of failureserror codes acc. table 1will be indicatedon the display.MAINS CORDplugged off?NYDisplay shows:STANDBYfor 5s.Set is switched toStandby mode.PLAY buttonpressed?NYExit Service TestprogramCD3 buttonpressed?stands for Service modestands

42、for version numberof the software used in thefront P.To enter ServiceTestprogram holdCD yCD & NO buttonsdepressed whileplugging mainscord in.On/Off switch in pos. ONVXXSS-CDR785-VXXYDisplay showssee also fig. 1PLAY buttonpressed?STOP buttonpressed?NEXT 6 buttonpressed?PREV5 buttonpressed?REC LEVEL b

43、uttonpressed?PROG buttonpressed?Slide movesoutside as long asbutton is helddepressed.Slide movesinside as long asbutton is helddepressed.Disc motor turnscounter clockwiseas long as buttonis held depressed.(brake)Disc motor turnsclockwiseas long as buttonis held depressed.(accelerate )YYYYYYNNNNNNNAF

44、OCUS found?YNDisplay showsobjective moves up&downDisplay showsNEXT 6 buttonpressed?YNDisplay shows Play modeMUTE is switched off(single speed)PREV 5 buttonpressed?YNCUE - modejumps in steps of16 tracks forwardsas long as buttonis hold depressed.FOCUS searchRADIAL testDISC SERVOREVIEW - modejumps in

45、steps of16 tracks backwardsas long as buttonis hold depressed.SLIDE testDISC MOTOR testSERVO testSlide can be activated in FOCUS test too:check if Focus functions over the whole disc areaPLAY buttonpressed?YNBBAPurpose of RADIAL test:To check if the Audio signal is reproduced.Subcode info is ignored

46、 during this test If the CD player functions well in this testmode,but not in the normal Play mode check qualityof the eye-pattern signal.Display shows absolute playing time of the discin order one can determine position of the slide.If the playing time is not shown (display flickers)the pickup is p

47、ossibly out of the program area ofthe disc. Press Next or Prev to move slide inside.Tray (open/close button) and Carousel(CD1, 2, 3 buttons) work as in normal mode.After activation of the tray or the carouselprogram returns to SERVO test.STOP button pressed inFOCUS- or RADIAL-testreturns to SERVO-te

48、stSince the CD-RW reflects much less light than an ordinary CD-DAthe gain of the HF-amplifier stage and the sensitivity of the ADC insidethe Signal Processor must be increased to find the focus point.In normal play mode high/low - gain is switched automatically.In Service Test Mode, with the TRACK E

49、DIT button, the gain/sensitivity can betoggled manually between high or low as soon as the SERVO test has been entered.When the set is switched to high gain, RW flag is indicated on the display.NOTE: If sensitivity is switched to CDRW the setmight not work with normal Audio CDs!In the steps SERVO te

50、st and FOCUS search the disc speed can be toggled manuallybetween single speed (1x) and double speed (2x) with the TEXT button.Flag 1 or 2 of the music calendar indicates the actual speed.indicates speed - single speed or double speednote: when double speed is set output is muted in RADIAL testindic