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

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1、GBCLASS 1LASER PRODUCTServiceServiceServiceMC-V320/21MTABLE OF CONTENTSPageLocation of PCBs Rs=600Tuner in : FM67.5kHz, AM80%ModulationCD in : -6dB trackTape in : 250nWb/mMicrophone in : 3.5mV; Rs=600Output sensitivityHeadphone output at 32 : 15mW 1dBCASSETTE RECORDER:Number of track : 2 Tracks (Ste

2、reo)Tape speed : 4.76 cm/sec 2%Wow and flutter : 48dBADistortion 250nWb/m : 62dBADistortion at 1kHz : 30dBEmphasis : 15/50 S (switchedautomatically by CD10)THD Noise(1kHz) : 1.00%Outband Attenuation : 20dB for Frequency 40kHzVIDEO - CD :Video bandwidth : 6MHzAmplitude output : 1.0Vpp(+10/-15%)S/N lu

3、minance : 45dBChroma/Luminance delay : 80nsMP3 - CD :Bit rates : 32K - 320KpsSampling rates : 32KHz/44.1KHz/48KHzLF Generator e.g. PM5110RecorderUse Universal Test Cassette CrO2 SBC419 4822 397 30069LEVEL METERe.g. Sennheiser UPM550with FF-filterS/N and distortion metere.g. Sound Technology ST1700BL

4、RDUTor 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 30184Bandpass250Hz-15kHze.g. 7122 707 48001LF Voltmetere.g. PM2534DUTS/N and di

5、stortion 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 high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).RF Generator e.g.

6、 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 from the pilottone (19kHz, 38kHz).Ri=50Tuner FMMEASUREMENT SETUP1-41-5SERVICE

7、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 397 30069SBC420 Test cassette Fe . 4822 397 30071MTT150 Dolby level 200nWb/M .

8、 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:Anti-static table mat - large 1200x650x1.25mm . 4822 466 10953Anti-static tab

9、le 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 to conn. box) . 4822 320 11306Earth cable (to connect product to mat or box)

10、 . 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 discharges (ESD).Careless handling during repair can reduce lifedrastically.Wh

11、en 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-conducteurs sont sensibles auxdcharges statiques (ESD).Leur longvit pourrait tre

12、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.Veiller ce que les composants ainsi que lesoutils que lon utilise soient galeme

13、nt cepotentiel.ESDD WARNUNGAlle ICs und viele andere Halbleiter sindempfindlich gegenber elektrostatischenEntladungen (ESD).Unsorgfltige Behandlung im Reparaturfall kandie Lebensdauer drastisch reduzieren.Veranlassen Sie, dass Sie im Reparaturfall berein Pulsarmband mit Widerstand verbundensind mit

14、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).Onzorgvuldig behandelen tijdens reparatie kande levensduur drastisch doen verminder

15、en.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 parecchi semi-conduttori sonosensibili alle scariche statiche (ESD).La loro lo

16、ngevit 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 dellapparecchio tramite un braccialettoa resistenza.Assicurarsi che i componenti e a

17、nche 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 that the set be restored to its originalcondition and that parts which are id

18、entical 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.FLes normes de scurit exigent que lappareil soit remis ltatdorigine et que soi

19、ent 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-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio ven

20、ga 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 metal parts toearth ground to assure no shock hazard exist. The leakage curren

21、tmust 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 ej strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa ole

22、t alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.PREPARATIONS AND CONTROLS1-7PreparationsRear connections The type plate is located at the rear of the system.APowerBefore connectin

23、g the ACpower cord to thewall outlet,ensure that the following are done;If your system is equipped with a VoltageSelector, set the VOLTAGE SELECTOR to thelocal power line voltage.All other connections havebeen made.WARNING! For optimal performance, use only theoriginal power cable.Never make or chan

24、ge any connectionswith the power switched on.Toavoid overheating of the system, a safetycircuit 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

25、Connection Connect the supplied AM loop antenna and FMantenna to the respective terminals.Adjust theposition of the antenna for optimal reception.AM Antennaspeaker (right) speaker (left) AC power cord AM loop antenna FM wire antenna ABDCVIDEO IN Television L R AUDIO OUT PreparationsPosition the ante

26、nna as far as possible from a TV,VCR or other radiation source.FM AntennaFor better FM stereo 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 t

27、o “LEFT“,colored (marked) wire to“+“ and black (unmarked) wire to “-“.Fullyinsert the stripped 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 connec

28、t speakers with an impedancelower than the speakers supplied.Please refer tothe SPECIFICATIONS section of this manual.DVideo Out Connection Connect the VIDEO OUT (CVBS)terminalat the rear of the system to the TV or VCRVIDEO IN for viewing or recording. Note: To avoid magnetic interference with the p

29、ictureon your TV, do not position the front speakers tooclose to the TV.Optional connectionThe 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

30、OUT terminalsof a TV, VCR,Laser Disc player, DVD player orCD Recorder to the AUXterminals.Note: I output (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). Inserting batteries into theRemot

31、e ControlInsert two batteries (Type R06 or AA) into theremote control with the correct polarity asindicated by the +and -symbols inside thebattery compartment.CAUTION!Remove batteries if they are exhaustedor not to be used for a long time.Do not use old and new or differenttypes of batteries in comb

32、ination. Batteries contain chemical substances, sothey should be disposed off properly.PREPARATIONS AND CONTROLS1-82 318 6 45790! # * $ )($& *% 2724PREPARATIONS AND CONTROLS1-9Controls Controls on the system andremote control1Displayshows the status of the system.2PROG/ REVfor VCD/ CD/ MP3.programme

33、s tracks andreviews the programme.for TUNER.programmes tunerstations manuallyorautomatically.for TAPE.sets tape reverse mode3CLOCK SET for CLOCK.set the clock function.for VCD/ CD/ MP3.starts or interrupts CDplaybackfor TAPE.starts the tape playback4Mode Selection VOLUME (-/+)adjusts the volume leve

34、l.on the system only- adjusts the hour and minutesfor the clock/timer functions.PRESET/ TIMER SET / (TITLE /+)for TUNER.selects a preset radiostation.for VCD/ CD/ MP3.skips to the beginning of acurrent track/ previous/subsequent track.select next or previous menufor Timer (only) to set timer under s

35、tandbySEARCH/ TUNE/(ALBUM /+)for TUNER.Tune to a stationfor VCD/ CD.fast searches back and forward within a track.for MP3.ALBUM select.for TAPE.fast rewind/ wind tapeSTOP9for VCD/ CD/ MP3.stops VCD/ CD/ MP3playback or erase a VCD/CD/ MP3 programme.for TUNER.stops programmingfor TAPE.stops tape playb

36、ack/recording.REC.starts recording.5SOURCEselects the respectivesound source for CD/TUNER/ TAPE /AUX.switches on the system.6DISPLAY-BANDfor TUNER.change the tuner radioband.(FM/ MW)for VCD/ CD/ MP3.change the CD displaymodefor TAPE.select tape direction7iR SENSORinfrared sensor for remote control.8

37、STANDBY ON 2switches the system to standby.9PHONES- connects to headphone.0LEVEL (mic)to adjust the mixing level for karaoke ormicrophone recording.!MICto connect microphone jack. open/ close the cassette door.#CD OPEN open the CD door.$INTERACTIVE SOUND controls:DBB.(Dynamic Bass Boost) enhances th

38、e bass.DSC.(Digital Sound Control)selects sound characteristics:CLASSIC/JAZZ/ ROCK/ OPTIMAL.%2to switch the system to Standby mode.DIGIT 0/- 9 (numbers consisting more than two or three figuresmust be Press & hold 0/-.)to select a track number for CD/VCD/MP3-CD.to select tuner preset.&MODE REPEATrep

39、eats a track/ CD programme/ entire CD.SHUFFLEplays CD tracks in random order.Controls*VOLUME (-/+)to increase or decrease the volume.adjusts the hour and minutes for the clock/ timesjunctions.(DIGESTto scan through a VCD or a specific track.)A - Bto playback a certain scene or passage of a CD/VCD re

40、peatedly.SLOWto watch the VCD at a slower speed.RESUMEto continue playback again from where you havestopped (for VCD with PBC switched off).ECHO-/+to adjust the VCD echo level for karaoke afterinserted the microphone.KEY CONTROL (I i)to change the VCD key tone level to suit yourvocal range.I.to decr

41、ease the key tone level.to restore the key tone leveltooriginal setting.i.to increase the key tone level.VOCALto fade out the original vocal from a KaraokeVCD or to switch between mono or stereomode during audio disc playback.GOTOselect time to begin playback within track.VCD Operation (for VCD vers

42、ion 2.0 only)PBC (PLAYBACK CONTROL)to switch on or off PBC mode.RETURNto return to the previous MENU level duringplayback (for VCD with PBC switched on).TIMER ON / OFFactivates/deactivates the timer function.Mode Selection PLAY PAUSE for CD/VCD/MP3-CDto start or interruptplayback.for TAPE.to start p

43、layback./ (ALBUM -/+)for MP3-CD only.to select previous/next Albumfor CD/VCD.to search backward/ forward.for TUNER.to tune to a lower orhigher radio frequency.for TAPE.to rewind or fast forward.STOP for CD/VCD/MP3-CD.to stop playback or toclear a programme.for TAPE.to stop playback orrecording.to re

44、set tape counter number./ (TITLE-/+)for MP3-CD only.to select previous/next Title.for VCD only.to select next or previous MENU or VCD track duringplayback (for VCD withPBC switched on).for CD/VCD.to skip to the previous or next track.for TUNER.to select a preset radiostation.PROGRAMfor CD/VCD/MP3-CD to programme disctracks.for TUNER.