Philips-FWC-270-Service-Manual电路原理图.pdf

GBCLASS 1LASER PRODUCTCOMPACTDIGITAL AUDIOService ManualServiceServiceServiceFWC270/21TABLE OF CONTENTSPageLocation of PCBs für Reparaturen sind Original-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 metal 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 laserstrålning när apparaten är öppnad och spärrenär urkopplad. Betrakta ej strålen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinanäkymättömälle laserisäteilylle. Älä katso säteeseen!DK Advarse !Usynlig laserstråling ved åbning når sikkerhedsafbrydere erude af funktion. Undgå udsaettelse for stråling.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 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 change any connectionswith the power switched on.Toavoid 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 downbeforereusing it (not available for all versions).BAntennas Connection Connect the supplied AM loop antenna and FMantenna to the respective terminals.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.SPEAKERS 6 R + L + SUBWOOFER OUT AM ANTENNA FM ANTENNA L R speaker (right) speaker (left) FM wire antenna AM loop antenna BCAUX/CDR AAC power cord VOLTAGE SELECTOR 110V- 127V 220V- 240V VOLTAGE SELECTOR 220V- 240V 110V- 127V PreparationsFM Antenna For better FM stereo reception, connect an outdoor FM antenna to the FM ANTENNAterminal.CSpeakers ConnectionConnect the speaker wires to the SPEAKERSterminals,right speaker to “R“ and left speaker to“L“,coloured (marked) wire to “+“ and black(unmarked) wire to “-“.12Fullyinsert 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 connectionThe optional equipment and connecting cords are not supplied.Refer to the operatinginstructions of the connected equipment fordetails. Connecting other equipment to yoursystem Use a cinch cable to connect AUX/CDR INtothe analogue audio out terminals of an externalequipment (TV, VCR,Laser Disc player, DVDplayer or CD Recorder).Note: If you are connecting equipment with a monooutput (a single audio out terminal), connect it to the AUX/CDR IN left terminal. Alternatively, youcan use a “single to double”cinch cable (the outputsound still remain mono). Inserting batteries into theremote controlInserttwo batteries type R03 or AAA (notsupplied) into the remote control with the correct polarity as indicated bythe “+“ and“-“ symbols inside the battery compartment.CAUTION!Remove batteries if they are exhaustedor will not be used for a long time.Do not use old and new or differenttypes of batteries in combination. Batteries contain chemical substances, sotheyshould be disposed off properly.PREPARATIONS AND CONTROLS1-81 2 3 4 5 6 7 8 9 0 ! #$%&*() STANDBY-ONSLEEPDIGITAL SOUND DISPLAYBANDTAPE1 2VIDEOTUNERTAPEAUXMASTER VOLUMESTOPCLEAR / DEMO STOPSEARCHTUNING SEARCHTUNING PLAY PAUSEPRESETNEXT/PRESETPREV/PROGRAMCLOCK/TIMERDIM MODE245DSCDBBMUTE2CD 1/2/3REPEATSHUFFLESLEEPTUNERTAPE 1/2AUX/CDRMUTENEWS/TAááëíÅÉÇVOL¡ 8*20£4Controls Controls on the system andremote control1STANDBY ON Bto switch the system on or to standby mode.2SLEEPto activate/deactivate or set the sleep timer.3DIGITAL SOUND DISPLAYthe active DSC will be lighted.4TUNER(BAND)to select waveband : FM or MW.TAPE (TAPE 12)to select tape mode.AUX (VIDEO)(AUX/CDR)to select the input for an additional appliance.5CD 1 / CD 2 / CD 3 (CD 1/2/3)to select disc tray1,2 or 3.6OPEN/CLOSEto open or close the disc tray.7DISC CHANGEto change disc(s).8DIGITAL SOUND CONTROL (DSC)to activate the jog control for DSC selection.9Jog controlto select the desired sound effect for theselected sound feature.DSC.JAZZ,ROCK,TECHNO orOPTIMAL.DBB.DBB 1, DBB 2, DBB 3 or DBB OFF.0DYNAMIC BASS BOOST (DBB)to activate the jog control for DBB selection.!PROGRAMfor CD.to programme disc tracks.for Tuner.to programme preset radiostations.for Clock.to select 12- or 24-hour clock mode.for Timer.to select CD programme modeas the wakeup source.Tape deck 1 operationâ.to start recording.É.to start playback.à/ á.to rewind or fast forward.70.to stop playback/recording or toopen the tape door.Å.to interrupt playback orrecording.#Tape deck 2 operationÉ.to start playback.à/ á.to rewind or fast forward.70.to stop playback or to open thetape door.Å.to interrupt playback.$CLOCK/TIMERto view the clock,set the clock or set the timer.%DIM MODEto select different brightness for the displayscreen :DIM 1,DIM 2,DIM 3 or DIM OFF.PREPARATIONS AND CONTROLS1-9ControlsMode Selection PLAYPAUSE ÉÅfor CD.to start or interrupt playback.forPlug & Play(on the system only)to initiateand start plug & playmode.SEARCHTUNINGàáfor CD.to search backward/forward.for Tuner.to tune to a lower or higherradio frequency.for Clock.(on the system only)to set thehour.STOPCLEAR / DEMO STOP Çfor CD.to stop playback or to clear aprogramme.for Tuner.(on the system only)to stopprogramming or to erase aselected preset.for Demo.(on the system only)to activate/deactivate the demonstration.for Clock.(on the system only)to exit clocksetting or cancel timer.forPlug & Play(on the system only)to exit plug& playmode.PREVí/ PRESET 4NEXTë/ PRESET3for CD.to skip to the beginning of the current,previous,or next track.for Tuner.to select a preset radio station.for Clock.(on the system only)to set theminute.&nto connect headphones.*MASTER VOLUME(VOL +/-)to increase or decrease the volume.(Display screento view the current status of the system.)Disc tray¡REPEATto playback track(s)/disc(s)/programmerepeatedly.SHUFFLEto playback all available discs and their tracks/programme in random order.£MUTEto interrupt or resume sound reproduction.Bto switch the system to standby mode.Notes for remote control:First,select the source you wish tocontrol bypressing one of the source selectkeys on the remote control (CD 1/2/3 orTUNER,for example).Then select the desired function (É,í,ë, for example).MAINTENANCE AND TROUBLESHOOTING1-10TroubleshootingWARNINGUnder 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 solve a problem byfollowing these hints,consult your dealer or service centre.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”.“DISC NOT FINALIZED”is displayed.Use a finalised CD-RWor CD-R.MaintenanceCleaning 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 wipe in circular motion. Do not use solvents such asbenzene, thinner, commercially available cleaners,or antistatic spray intended 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 quality,clean the heads Aand B, the capstan(s) C,and pressure roller(s) Dafter every 50 hoursof tape operation.Use a cotton swab slightly moistened with cleaning fluid or alcohol.You also can clean the heads by playing acleaning tape once.Demagnetising the heads Use a demagnetising tape available at yourdealer.TroubleshootingRADIO 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 Mini HiFiSystem and your TV or VCR.TAPE OPERATION/RECORDINGRecording or playback cannot be made.Clean deck parts,see “Maintenance”.Use only NORMAL (IEC I) tape.Applya piece of adhesive tape over the missingtab space.GENERALThe system does not react when buttonsRemoveand 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 1/2/3 or TUNER,forproperly.example) before pressing the function button(É,í,ë).Reduce the distance between the remote controland the system.Insertthe batteries with their polarities(+/ signs) aligned as indicated.Replace the batteries.Point the remote control directly towards the IRsensor .The timer is not working.Setthe clock correctly.Press and hold CLOCK/TIMER to switch on the timer.If recording or tape dubbing is in progress,stoprecording.The Clock/Timer setting is erased.Power has been interrupted or the power cordhas been disconnected.Reset the clock/timer.The system displays featuresPress and hold Çon the system to switch offautomatically.the demonstration.