Philips-MC-320-Service-Manual电路原理图.pdf

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1、GBCLASS 1LASER PRODUCTServiceServiceServiceMC-320TABLE OF CONTENTSPageLocation of PCBs Rs=600Tuner in : FM67.5kHz, AM80%ModulationCD in : -6dB trackTape in : 250nWb/mOutput sensitivityHeadphone output at 32 : 15mW 1dBCASSETTE RECORDER:Number of track : 2 Tracks (Stereo)Tape speed : 4.76 cm/sec 2%Wow

2、 and flutter : 48dBADistortion 250nWb/m : 70dBADistortion at 1kHz : 55dBEmphasis : 15/50 S (switchedautomatically by CD10)THD Noise(1kHz) : 70dBOutband Attenuation : 20dB for Frequency 40kHzLF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METERe.g. Sennheis

3、er UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BLRDUTor Universal Test Cassette Fe SBC420 4822 397 30071LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BLRDUTCDUse Audio Signal Disc(replaces test disc 3)SBC429 4822 397 30

4、184Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTS/N and distortion metere.g. Sound Technology ST1700BFrame aeriale.g. 7122 707 89001Tuner AM (MW,LW)To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage.Use a bandpass filter (or at least a

5、high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).RF Generator e.g. PM5326Ri=50Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTRF Generator e.g. PM5326S/N and distortion metere.g. Sound Technology ST1700BUse a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance f

6、rom the pilottone (19kHz, 38kHz).Ri=50Tuner FMMEASUREMENT SETUP1-41-5SERVICE AIDSService Tools:Universal Torx driver holder . 4822 395 91019Torx bit T10 150mm . 4822 395 50456Torx driver set T6 - T20 . 4822 395 50145Torx driver T10 extended . 4822 395 50423Cassette:SBC419 Test cassette CrO2 . 4822 3

7、97 30069SBC420 Test cassette Fe . 4822 397 30071MTT150 Dolby level 200nWb/M . 4822 397 30271Compact Disc:SBC426/426A Test disc 5 + 5A . 4822 397 30096SBC442 Audio Burn-in Test disc 1kHz . 4822 397 30155SBC429 Audio Signals disc . 4822 397 30184Dolby Pro-logic Test Disc . 4822 395 10216ESD Equipment:

8、Anti-static table mat - large 1200x650x1.25mm . 4822 466 10953Anti-static table mat - small 600x650x1.25mm . 4822 466 10958Anti-static wristband . 4822 395 10223Connector box (1M) . 4822 320 11307Extension cable(to connect wristband to conn. box) . 4822 320 11305Connecting cable(to connect table mat

9、 to conn. box) . 4822 320 11306Earth cable (to connect product to mat or box) . 4822 320 11308Complete kit ESD3(combining all above products) . 4822 320 10671Wristband tester . 4822 344 13999HANDLING CHIP COMPONENTS1-6GB WARNINGAll ICs and many other semi-conductors aresusceptible to electrostatic d

10、ischarges (ESD).Careless handling during repair can reduce lifedrastically.When repairing, make sure that you areconnected with the same potential as the massof the set via a wrist wrap with resistance.Keep components and tools also at thispotential.FATTENTIONTous les IC et beaucoup dautressemi-cond

11、ucteurs sont sensibles auxdcharges statiques (ESD).Leur longvit pourrait tre considrablementcourte par le fait quaucune prcaution nestprise leur manipulation.Lors de rparations, sassurer de bien tre reliau mme potentiel que la masse de lappareil etenfiler le bracelet serti dune rsistance descurit.Ve

12、iller ce que les composants ainsi que lesoutils que lon utilise soient galement cepotentiel.ESDD WARNUNGAlle ICs und viele andere Halbleiter sindempfindlich gegenber elektrostatischenEntladungen (ESD).Unsorgfltige Behandlung im Reparaturfall kandie Lebensdauer drastisch reduzieren.Veranlassen Sie, d

13、ass Sie im Reparaturfall berein Pulsarmband mit Widerstand verbundensind mit dem gleichen Potential wie die Massedes Gertes.Bauteile und Hilfsmittel auch auf dieses gleichePotential halten.NL WAARSCHUWINGAlle ICs en vele andere halfgeleiders zijngevoelig voor electrostatische ontladingen(ESD).Onzorg

14、vuldig behandelen tijdens reparatie kande levensduur drastisch doen verminderen.Zorg ervoor dat u tijdens reparatie via eenpolsband met weerstand verbonden bent methetzelfde potentiaal als de massa van hetapparaat.Houd componenten en hulpmiddelen ook opditzelfde potentiaal.I AVVERTIMENTOTutti IC e p

15、arecchi semi-conduttori sonosensibili alle scariche statiche (ESD).La loro longevit potrebbe essere fortementeridatta in caso di non osservazione della pigrande cauzione alla loro manipolazione.Durante le riparazioni occorre quindi esserecollegato allo stesso potenziale che quello dellamassa dellapp

16、arecchio tramite un braccialettoa resistenza.Assicurarsi che i componenti e anche gli utensilicon quali si lavora siano anche a questopotenziale.“Pour votre scurit, ces documentsdoivent tre utiliss par des spcia-listes agrs, seuls habilits rparervotre appareil en panne”.GBSafety regulations require

17、that the set be restored to its originalcondition and that parts which are identical with those specified,be used.NLVeiligheidsbepalingen vereisen, dat het apparaat bij reparatie inzijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,identiek aan de gespecificeerde, worden toegepast.F

18、Les normes de scurit exigent que lappareil soit remis ltatdorigine et que soient utiliss les pices de rechange identiques celles spcifies.DBei jeder Reparatur sind die geltenden Sicherheitsvorschriften zubeachten. Der Original zustand des Gerts darf nicht verndert werden;fr Reparaturen sind Original

19、-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.“After servicing and before returning set to customer perform aleakage current measurement test from all exposed m

20、etal parts toearth ground to assure no shock hazard exist. The leakage currentmust not exceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !Invisible laser radiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrlning nr apparaten r ppnad och sprrenr urkopplad. Betrakta e

21、j strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.PREPARATIONS AND CONTROLS1-7PreparationsRear connectio

22、ns The type plate is located at the rear of the system.APowerBefore connecting the ACpower cord to thewall outlet, ensure that all other connections havebeen made.WARNING! For optimal performance, use only theoriginal power cable.Never makeor change any connectionswith the power switched on.Toavoid

23、overheating of the system, asafetycircuit has been built in.Therefore,yoursystem may switch to Standby modeautomatically under extreme conditions. Ifthis happens,let the system cool downbefore reusing it (not available for all versions).BAntennas Connection Connect the supplied AM loop antenna and F

24、Mantenna to the respectiveterminals.Adjust theposition of the antenna for optimal reception.AM Antenna Position the antenna as far as possible from a TV,VCR or other radiation source.speaker(right)speaker(left)AC power cordAM loop antennaFM wire antennaABCPreparationsFM Antenna For better FM stereo

25、reception, connect an outdoor FM antenna to the FM AERIAL (FMANTENNA) terminal.CSpeakers ConnectionFront SpeakersConnect the speaker wires to the SPEAKERSterminals,right speaker to “RIGHT“ and leftspeaker to “LEFT“,colored (marked) wire to“+“ and black (unmarked) wire to “-“.Fully insert the strippe

26、d portion of the speakerwire into the terminal as shown.Notes: For optimal sound performance, use thesupplied speakers.Do not connect morethan one speaker to anyone pair of +/-speaker terminals.Do not connect speakers with an impedancelower than the speakers supplied.Please refer tothe SPECIFICATION

27、S section of this manual.Optional connection The optional equipment and connecting cords are not supplied.Refer to the operatinginstructions of the connected equipment fordetails. Connecting other equipment to yoursystem Connect the audio left and right OUT terminalsof a TV, VCR,Laser Disc player, D

28、VD player orCD Recorder to the AUX terminals.Note: If you are connecting equipment with a monooutput (a single audio out terminal), connect it to the AUX left terminal.Alternatively, you can use a“single to double”cinch cable (the output soundstill remain mono).Before using the remote control1Pull o

29、ut the plastic protectivesheet.2Select the source you wish to control bypressing one of the source select keys on theremote control (for example CD, TUNER).3Then select the desired function (for example,).Replacing battery (lithiumCR2025) into the remote control1Pull out the knob A slightly to the l

30、eft.2Pull out the battery compartment B .3Replace a new battery and fully insert thebattery compartment back to the originalposition.ACR2025LITHIUMBplastic protectivesheetCAUTION!Batteries contain chemical substances, sothey should be disposed off properly.PREPARATIONS AND CONTROLS1-830! 9 3 * & %5

31、4 6 2 # $2 319 6 458 7Controls Controls on the system andremote control1Displayshows the status of the system.2PROG/ REVfor CD.programmes tracks and reviewsthe programme.for TUNER.programmes tuner stationsmanually or automatically.for TAPE.sets tape reverse modes3CLOCK SET RDS / for CLOCK.set the cl

32、ock function.for CD.starts or interrupts CD playbackfor TAPE.starts the tape playback4Mode Selection VOLUME (-/+)adjusts the volume level.on the system only- adjusts the hour and minutesfor the clock/ timer functions. PRESET/ TIMER SET / for TUNER.selects a preset radio station.for CD.skips to the b

33、eginning of acurrent track/previous/subsequent trackfor Timer (only) to set timer under standbySEARCH/ TUNE/for TUNER.Tune to a stationfor CD.fast searches back and forwardwithin a track/CD.for TAPE.fast rewind/ wind tapeSTOP9.stops CD playback or erase aCD programme.stops tape playback/recording.RE

34、C.starts recording.5SOURCEselects the respectivesound source for CD/TUNER/ TAPE /AUX.switches on the system.6DISPLAY-BAND (on the remote controlDISPLAY A/B)for TUNER.change the tuner radioband.(FM/ MW/ LW)for CD.change the CD displaymodefor TAPE.switches tape direction7iR SENSORinfrared sensor for r

35、emote control.8ECO POWER indicator9STANDBY ON2switches the system to standby.0PHONES- connects to headphone.!- open/ close the cassette door.CD OPEN open the CD door.#INTERACTIVE SOUND controls:DBB.(Dynamic Bass Boost) enhances the bass.DSC.(Digital Sound Control) selects sound characteristics:CLASS

36、IC/JAZZ/ ROCK/ OPTIMAL.INCREDIBLE SURR. (IS).creates a super-enhanced stereoeffect.$REPEATrepeats a track/ CD programme/ entire CD.%SHUFFLEplays CD tracks in random order.MUTEinterrupts and resumes sound reproduction.&SLEEPactivates/deactivates or selects the sleeper time.*TIMER ON / OFFactivates/de

37、activates the timer function.Notes for remote control:First select the source you wish to controlbypressing one of the source select keys onthe remote control (for example CD,TUNER). Then select the desired function (forexample ,).PREPARATIONS AND CONTROLS1-9Important notes for users in theU.K.Mains

38、 plug This apparatus is fitted with an approved 13Amp plug.Tochange a fuse in this type of plugproceed as follows:1Remove fuse cover and fuse.2Fix new fuse which should be a BS1362 5 Amp,A.S.T.A.or BSI approved type.3Refit the fuse cover.If the fitted plug is not suitable for your socketoutlets,it s

39、hould be cut off and an appropriateplug fitted in its place.If the mains plug contains a fuse, this shouldhavea value of 5 Amp. If a plug without a fuseis used,the fuse at the distribution boardshould not be greater than 5 Amp.Note:The severed plug must be disposed of toavoid a possible shock hazard

40、 should it beinserted into a 13 Amp socket elsewhere.How to connect a plugThe wires in the mains lead are coloured with the following code:blue = neutral (N),brown = live (L).As these colours may not correspond with thecolour markings identifying the terminals inyour plug,proceed as follows:Connect

41、the blue wire to the terminalmarked N or coloured black.Connect the brown wire to the terminalmarked L or coloured red.Do not connect either wire to the earthterminal in the plug,marked E (or e) orcoloured green (or green and yellow).Before replacing the plug cover, makecertainthat the cord grip is

42、clamped over the sheathof the lead - not simplyover the two wires.Copyright in the U.K.Recording and playback of material mayrequire consent.See Copyright Act 1956 andThe Performers Protection Acts 1958 to 1972.NorgeTypeskilt finnes p apparatens underside.Observer:Nettbryteren er sekundertinnkoplet.

43、Den innebygde netdelen erderfor ikke frakoplet nettet s lengeapparatet er tilsluttet nettkontakten.For redusere faren for brann eller elektriskstt,skal apparatet ikke utsettes for regn ellerfuktighet.ItaliaDICHIARAZIONE DI CONFORMITASi dichiara che lapparecchio MC-320Philipsrisponde alle prescrizion

44、i dellart. 2 comma 1 delD.M.28 Agosto 1995 n.548.Fatto a EindhovenPhilips Consumer ElectronicsPhilips, Glaslaan 25616 JB Eindhoven,The NetherlandsCAUTIONUse of controls or adjustments orperformance of procedures other thanherein may result in hazardousradiation exposure or other unsafeoperation.1-10

45、PREPARATIONS AND CONTROLSCleaning the Cabinet Use a soft cloth slightly moistened with a mild detergent solution.Do not use a solutioncontaining alcohol, spirits,ammonia or abrasives.Cleaning Discs When a disc becomes dirty,clean it with a cleaning cloth. Wipe the disc from the centre out. Do not us

46、e solvents such asbenzene, thinner, commerciallyavailable cleaners,or antistaticsprayintended for analogue records.Cleaning the disc lens After prolonged use, dirtor dust mayaccumulate at the disc lens.Toensure goodplayback quality, clean the disc lens with PhilipsCD Lens Cleaner or any commercially availablecleaner. Follow the instructions supplied withcleaner.Cleaning the Heads and the Tape PathsToensure good recording and playback quali