Philips-MC-235-Service-Manual电路原理图.pdf

GBCLASS 1LASER PRODUCTCOMPACTDIGITAL AUDIOService ManualServiceServiceServiceMC230/21M/22/25/30TABLE OF CONTENTSPageLocation of pc boards für Reparaturen sind Original-Ersatzteile zu verwenden.Sicherheitsbauteile sind durch das Symbol !markiert.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.Componenty di sicurezza sono marcati con !GBAfter servicing and before returning set to customer perform a leakagecurrent measurement test from all exposed metal parts to earth ground toassure no shock hazard exist. The leakage current must not exceed0.5mA.PREPARATIONS AND CONTROLS1-7PreparationsRear connections 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.If your system is equipped with a VoltageSelector, set the VOLTAGE SELECTOR to thelocal power line voltage.WARNING! For optimal performance, use only theoriginal power cable.Never make or change 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 Connection Connect the supplied MW loop antenna and FM antenna to the respective terminals.Adjust theposition of the antenna for optimal reception.MW Antenna Position the antenna as far as possible from a TV,VCR or other radiation source.MW loop antennaFM wire antennaACpower cordSpeakers(right)Speakers(left)NOT FOR ALL VERSIONSVOLTAGE SELECTOR110V- 127V 220V- 240VFM Antenna For 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 to “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 connect speakers with an impedancelower than the speakers supplied.Please refer tothe SPECIFICATIONS 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, DVD player orCD Recorder to the AUX-INterminals.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).Beforeusing the remote control1Pull out the plastic protectivesheet.2Select the source you wish to control bypressing one of the source select keys on the remote control (for example CD, TUNER).3Then select the desired function (for exampleÉÅ,í,ë).plastic protectivesheetReplacing battery (lithiumCR2025) into the remote control1Pull out the knob A slightly to the left.2Pull out the battery compartment B .3Replace a new battery and fully insert thebattery compartment back to the originalposition. CAUTION!Batteries contain chemical substances, sothey should be disposed off properly.PreparationsPREPARATIONS AND CONTROLS1-8)1 3 4 6 7 8 95 ! 021! 7 0 8 *%3 # $ & (5Controls Controls on the system andremote control1STANDBY-ON/ ECO POWERswitches the system on or to Eco Power standby.2Displayshows the status of the system.3OPEN CLOSEçopens/ closes the CD door.4IRremote sensor5VOLUME (3 /4) (+/-)adjusts the volume level.6CD Door7Mode Selection SEARCH/ TUNE(à/á)for TUNER.tunes to a stationfor CD.fast searches back and forward within a track/ CD.STOP9.stops CD playback or erase aCD programme.PLAYÉÅ.starts or interrupts playback.PRESET (¡/ )for TUNER.selects a preset radio station.for CD.skips to the beginning of acurrent track/ previous/subsequent track8DBB(Dynamic Bass Boost)enhances the bass.9BANDselects a waveband.0PROGRAMfor CD.programmes tracks and reviewsthe programme.for TUNER.programmes tuner stations.!SOURCEselects the respectivesound source for CD/TUNER/ AUX.CLOCK SETsets the clock function.views the clock.#TIMERactivates/ deactivates or sets the timer function$SLEEPactivates/deactivates or selects the sleeper time.%DSC(Digital Sound Control)selects sound characteristics:ROCK/ JAZZ/POP/ CLASSIC.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 (forexampleÉÅ,¡,).RDS.NEWSactivates RDS news and Traffic Announcement.for tuner, displays RDS information.&MUTEinterrupts and resumes sound reproduction.*REPEATrepeats a track/ CD programme/ entire CD.(SHUFFLEplays CD tracks in random order.) connects headphonesPREPARATIONS AND CONTROLS1-9Important notes for users in theU.K.Mains plug This apparatus is fitted with an approved 13Amp plug.Tochange a fuse in this type of plugproceed as follows:1Removefuse 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 should 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 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 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, make certainthat the cord grip is clamped over the sheathof the lead - not simply over 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 på apparatens underside.Observer:Nettbryteren er sekundertinnkoplet.Den innebygde netdelen erderfor ikke frakoplet nettet så lengeapparatet er tilsluttet nettkontakten.For å redusere faren for brann eller elektriskstøt,skal apparatet ikke utsettes for regn ellerfuktighet.ItaliaDICHIARAZIONE DI CONFORMITASi dichiara che lapparecchio MC230,MC235Philips risponde alle prescrizioni dellart. 2comma 1 del D.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.VAROITUSMuiden kuin tässä esitettyjentoimintojen säädön tai asetustenmuutto saattaa altistaa vaarallisellesäteilylle tai muille vaarallisilletoiminnoille.1-10PREPARATIONS AND CONTROLSWARNINGUnder no circumstances should you try to repair the system yourself,as this will invalidate thewarranty.Do not open the system as there is a risk of electric shock.If a fault occurs,first check the points listed below before taking the system for repair.If youare unable to remedy a problem byfollowing these hints,consult your dealer or Philips for help.ProblemSolutionCD OPERATION“NO DISC”is displayed.Insert a disc.Check if the disc is inserted upside down.Wait until the moisture condensation at the lenshas cleared.Replace or clean the disc, see “Maintenance”.Use a finalised CD-RWor CD-R.RADIO RECEPTIONRadio reception is poor.If the signal is too weak,adjust the antenna orconnect an external antenna for better reception.Increase the distance between the Micro HiFiSystem and your TV or VCR.GENERALThe system does not react when buttonsRemove and reconnect the ACpower plug andare pressed.switch on the system again.Sound cannot be heard or is of poorAdjust the volume.quality.Disconnect the headphones.Check that the speakers are connected correctly.Check if the stripped speaker wire is clamped.The left and right sound outputs areCheck the speaker connections and location.reversed.The remote control does not functionSelect the source (CD or TUNER,for example)properly.before pressing the function button (ÉÅ,í,ë).Reduce the distance between the remote controland the system.Insert the battery with its polarities(+/ signs) aligned as indicated.Replace the battery.Point the remote control directly towardIR sensor on the front of the system.The timer is not working.Set the clock correctly.Press TIMER to switch on the timer.The Clock/Timer setting is erased.Power has been interrupted or the power cordhas been disconnected.Reset the clock/timer.Troubleshooting