Philips-CDR-795-796-Service-Manual(1)电路原理图.pdf

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1、For servicing CDR79x the set has to be divided into two parts:1. Except for the CD-R/W module all workshops can repair the set on component level.The Switched Mode Power Supply unit will be exchanged completely in case of a failure.2.The CD-R/W module can only be repaired on component level with the

2、 help of ComPair.With this tool diagnosing of the set can be done in an interactive way. In this tool also the adjustment procedure hasbeen implemented. The adjustment is absolutely necessary in case the CDR-Main Board and/or CD drive (CDR Loader)is disconnected from the matched production combinati

3、on.Only designated workshops can perform these repairs!Please send the complete set to the designated workshop.Available circuit descriptions: The Basics of Compact Disc Recordable/Rewritable 4822 725 252422nd line Service Manual CDR Mozart Module 3122 785 60030 chapterTechnical Specification and Me

4、asurement setup.1-1, 1-2Location of printed circuit boards.1-3Warnings 20 26 52PAUSE20 26 48DISPLAY 20 26 11DIM 16 26 71CD TEXT/edit 20 26DELETE 20 26 49SHUFFLE 20 26 28REPEAT 20 26 29RC5 code RC283105 220402CD CDR88 82CD CDRRemote Control: RC5 commands RC283105TECHNICAL SPECIFICATIONLRLEVEL METERe

5、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 SETUP1-3NTCCDR “MOZARTBOARDSWITCHED MODEPOWER SUPPLYINTERFACE BOARDLIGHTGUIDE BOARDDISPLAY BOARDKEY BOARDLoca ion of boards, CDR79x

6、, 100102HEADPHONEBOARDCD MODULECD-R/W MODULELOCATION 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 p

7、otential as the mass of the set via 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

8、 leur manipulation.Lors de rparations, 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 Halbleite

9、r sind empfindlichgegenber elektrostatischen 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 Hilfsm

10、ittel ebenfalls auf diesemPotential.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

11、 bent met hetzelfdepotentiaal als 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 p

12、i grande cauzione alla loromanipolazione. 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

13、regulations require that the set 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 ric

14、ambiago identici a quelli specificati.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 symb

15、ools Varning !Osynlig laserstrlning 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

16、laseristeilylle. l katso steeseen !f“Pour 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 w

17、erden. Fr Reparaturen sind Original-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

18、 PRODUCT DANGER: Invisible laser radiation 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 BEA

19、M. AVAILABLE ESD PROTECTION EQUIPMENT :anti-static table mat large 1200x650x1 25mm 4822 466 10953small 600x650x1.25mm 4822 466 10958anti-static wristband 4822 395 10223connection box (3 press stud connections, 1M) 4822 320 11307extendible cable (2m, 2M, to connect wristband to connection box) 4822 3

20、20 11305connecting cable (3m, 2M, to 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 tester 4822 344 13999WARNINGS CD recorder: st

21、arts/interrupts playbackCD player: starts/interrupts playback SPEED 124xselects the record speed for internal recordingNote: SPEED 124x, REC and COPY CD will be illuminateddepending on the different modes you are in.This in order tofacilitate finding the relevant keys for selection.Controls12English

22、LR165432780!#$% interrupts playbackDIM controls the brightness of the display&DISPLAYselects display information*CD TEXT/edit switches through CD text information,enters/exits theCDtext edit menu(DELETE deletes CD text)REPEATrepeats a track,an entire CD(RW),or a programSHUFFLE plays tracks in random

23、 orderCDTIMER RECCDRSPACEABCDEFGHIJKLMNOPQRSTUVWXYZTR.INCR.PROGRAMCDTEXT231 456789 0ALBUM+ALBUMDISPLAYDIMSHUFFLEREPEATCD TEXT/editDELETE1 !23 56 78# %& *) 0 (4 9 $3-3BRIEF OPERATING INSTRUCTIONSDirect digital optical connectionThis connection is required for direct recording from anydigital audio eq

24、uipment with a digital optical output (e.g.CD player or DVD player).1Remove the dust caps from the digital optical input of theCD player/recorder and from the digital optical output ofthe external appliance.Keep the caps in a safe place.2Use a digital optical cable to connect the optical output ofth

25、e external appliance with OPTICALIN on theCDplayer/recorder.Make sure you insert both plugs fully,until a click is heard.0Recording can be done now via the digital optical input.Press INPUT repeatedly on the CD player/recorder toselect the digital optical input.OPTICALINis displayed.Digital coaxial

26、connections via a digital receiverIf you have a receiver with digital coaxial in- and outputs,these connections allow you to make digital recordingsfrom various sources connected to the receiver.Use a coaxial cable to connect the digital coaxial input ofthe receiver with DIGITALOUT on the CDplayer/r

27、ecorder.Use another coaxial cable to connect the digital coaxialoutput of the receiver with DIGITALIN on theCDplayer/recorder.0Recording can be done now with any digital applianceconnected to a digital input of the digital receiver (e.g.CDplayer or DVD player).Press INPUT on theCDplayer/recorder rep

28、eatedly to select the digital coaxialinput.DIGITALINis displayed.Digital optical connections via a digital receiverIf you have a receiver with digital optical in- and outputs,these connections allow you to make digital recordingsfrom various sources connected to the receiver.1Remove the dust caps fr

29、om the digital optical in- andoutputs of the CD player/recorder and from the digitaloptical output of the receiver.Keep the caps in a safe place.2Use a digital optical cable to connect the optical input ofthe receiver with OPTICALOUT on theCDplayer/recorder.Use another digital optical cable toconnec

30、t the optical output of the receiver withOPTICALIN on the CD player/recorder.Make sure youinsert the plugs fully,until a click is heard.0Recording can be done now with any digital applianceconnected to a digital input of the digital receiver (e.g.CDplayer or DVD player).Press INPUT on theCDplayer/re

31、corder repeatedly to select the digital opticalinput.OPTICALINis displayed.PowerThe type plate is located on the rear of the unt.1Check whether the power voltage as shown on the typeplate corresponds to your local power voltage.If it doesnot,consult your dealer or service organization.2Make sure all

32、 connections have been made beforeswtching on the power supply.3Connect the power cable supplied to AC MAINS and tothe power outlet.This switches on the power supply.When the unit is switched to standby,it is still consumingsome power.To disconnect the unit from the powercompletely,remove the power

33、plug from the poweroutlet.Installations11EnglishCD PLAYER/RECORDERCD PLAYEROUTNOPTCALDGTALANALOGL RNOUTOUTNOPTCALDGTAL OUTPUTANALOG OUTPUTL RCOAX“CLICK!”CD PLAYER/RECORDERDIGITALRECEIVEROUTNOPTCDGTALALOGL RNOUTOUTNOPTCALOUTNAUXCD VD NCD PLAYER/RECORDERDIGITALRECEIVEROUTNOPTCALDGALANALOGL RNOUTOUTNOP

34、TCALOUTNAUXCD NVD “CLICK!”Analog connectionsThese connections are required for playback and recording via an amplifier/receiver, equipped with analog in- andoutputs.1Connect the red plug of the supplied audio cable (cinch) tothe red jackANALOG IN R and the white plug to thewhite jackANALOG IN L on t

35、he CD player/recorde.r:2Connect the other end of the audio cable to the analog outputs of the amplifier/receiver (CDR OUT,TAPE OUT,AUX OUT,REC OUT,etc.).3Connect the red plug of the supplied audio cable (cinch) tothe red jackANALOG OUT R and the white plug to thewhite jackANALOG OUT L on the CD play

36、er/recorder:4Connect the other end of the audio cable to the analog inputs of the amplifier/receiver (CD-R,TAPE IN,AUX,PLAYIN,etc.).5Connect all other components of your system (tape deck,CD player,tuner,turntable,etc.) via their analog outputs tothe appropriate analog inputs of the amplifier/receiv

37、er(CDIN,TUNER IN,AUX IN,PHONO IN,etc.).0Recording can be done now withany appliance connectedto an analog input of the amplifier/receiver:Press INPUT onthe CD player/recorder repeatedly to select the analoginput.ANALOGINis displayed.How to connect if the analog output on theamplifier/receiver is alr

38、eady being used (occupied)Most amplifiers/receivers have multiple analog outputconnections (TAPE,VCR,),but some amplifiers/receivershave only 1 analog output.In case you have already hookedup a tape deck (DAT recorder or MD recorder) to thisoutput you will have to change the existing connections.1Di

39、sconnect the analog connections from the tape deck tothe amplifier/receiver.2Connect the CD player/recorder (see steps 14 in theprevious chapter).3Connect the analog outputs of the tape deck to any freeanalog inputs (AUX,CD) on the amplifier/receiver: You cannow playback your tape or record from you

40、r tape deck on CD.However,it is no longer possible to record on tape.Digital connections Direct digital coaxial connectionThis connection is required for direct recording from any digital audio equipment with a digital coaxial output (e.g.CD player or DVD player).Use a digital coaxial cable to conne

41、ct the coaxial output of the external appliance with DIGITAL IN on theCDplayer/recorder:0Recording can be done now via the digital coaxial input.Press INPUT on the CD player/recorder repeatedly toselect the digital coaxial input.DIGITALINis displayed.Installations 10NOPTCALDGTALANALOGL RNOUTOUTNOPTC

42、ALDGTAL OUTPUTANALOG OUTPUTL RPHONOL RCDNNCD PLAYER/RECORDERAMPLIFIER/RECEIVERPHONORCDNNCDR/TAPEL RNOUTCD PLAYERCOAXTURNTABLELCD PLAYER/RECORDERCD PLAYEROUTNOPTCALDGTALANALOGL RNOUTOUTNOPTCALDGTAL OUTPUTANALOG OUTPUTRCOAXLCDR82x only4-1DISMANTLING INSTRUCTIONSDismantling the Top Coverpicture 2 Remov

43、e 7 (9) screws as shown in picture 2. Raise top cover at the rear and pull it backwards.remark: in some production batches the top covermay be fixed with 5 screws at the rear side.Dismantling the Tray CoversTo dismantle the ornamental cover, the tray has to be moved out first.This can either be done

44、 by activating the Open/Close-key or manually.In order to avoid unnecessary loading it is recommended to move the tray out manually a few centimetres.To release the tray manually proceed as shown in pictures 3, 4, 5 and 6. The tray will move out a little.Afterwards it can be pulled out as far as con

45、venient.Release tray of CD Loader Release tray of CDR modulepicture 4picture 5detailpicture 3picture 6oruse a short screwdriveror a paper clip4-2DISMANTLING INSTRUCTIONSDismantling the Front Cabinetpicture 9 Remove top cover and ornamental covers from the trays first fi see description above and on

46、page 4-1. Move trays back to closed position. Loosen 2 screws as shown in picture 9. Remove adhesive tape from cable 8016 and take cable to Headphone Board out of its guidings on the rightside of the CDR support. Release 4 catches on top (as shown in picture 9) first, then 2 catches on bottom (see picture 10). To release the cover from the catch on the tray, pull itfrontwards on bottom side as shown in picture 7 and 8. Pull the cover up.picture 7Dismantling the Tray Coverscontinuedpicture 8Dismantling the ornamental coverfrom the CDR-trayfunctions in the same manner.