Philips-LX-700-Service-Manual电路原理图.pdf

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1、GBService ManualServiceServiceServiceLX700/21S/22S/25STABLE OF CONTENTSPageLocation of PCBs . 1-2Version Variations fr Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di ricambio

2、identici 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.“1-7IMPORTANT! Before connecting the AC power cord to th

3、e walloutlet, ensure that all other connections have beenmade.Never make or change any connections with thepower switched on. The type plate is located at the rear of thesystem.Connecting the speakersPress up (or down) the speakers jack and fully insert thestripped portion of the speaker cable into

4、the jack, then re-lease.SpeakersFront Left (L)Front Right (R)CenterSurround (Rear) Left (L)Surround (Rear) Right (R)Passive Subwooferblackblackblackblackblackblackwhiteredgreenbluegreypurple-+Connections12 mmnonmarkingreturn+nonmarkingreturn +nonmarkingreturnACnonmarkingreturn nonmarkingreturnMAnonm

5、arkingreturnINnonmarkingreturn S nonmarkingreturnnonmarkingreturn+nonmarkingreturn+nonmarkingreturnNEODnonmarkingreturnYMIUM RIBBON nonmarkingreturnTWEETERnonmarkingreturnHI-FREOUENCnonmarkingreturnYnonmarkingreturnNEODnonmarkingreturnYMIUM RIBBON nonmarkingreturnTWEETERnonmarkingreturnHnonmarkingre

6、turnI-FREOUENCYnonmarkingreturnSnonmarkingreturnUnonmarkingreturnBnonmarkingreturn . SnonmarkingreturnUnonmarkingreturnBnonmarkingreturn . NEODnonmarkingreturnYMIUM RIBBON nonmarkingreturnTWEETERnonmarkingreturnHI-FREOUENCYnonmarkingreturnNEODnonmarkingreturnYMIUM RIBBON nonmarkingreturnTWEETERnonma

7、rkingreturnHI-FREOUENCYnonmarkingreturnBefore connecting the speakers: Mount the speakers onto the minispeaker stands as shown in the illustration. Remove the protective cover only afterthe connection and installation ofspeakers are completed.Connect the supplied speaker systemusing the supplied spe

8、aker cable bymatching the colors of the jacks andspeaker cable.Notes: Check the speaker cables are correctlyconnected. Improper connections may damage the system dueto short-circuit.For optimal sound performance, use the supplied speakers. Do not connect more than one speaker to any one pair of+/- s

9、peaker jacks. Do not connect speakers with impedance lower than thespeakers supplied. Please refer to the SPECIFICATION sectionof this manual.1-8ConnectionsConnecting from a DVD andadditional componentsTo listen to playback from your DVD or SACD player.Option 16 CHANNEL-DVD/SACD INUse the supplied a

10、udio cables to connect the 6 CHANNEL-DVD/SACD IN jacks to the corresponding MultichannelAUDIO OUT on your DVD or SACD player.About 6 CHANNEL-DVD/SACD INThe 6 CHANNEL-DVD/SACD IN can be used to connectfrom a device with a built-in multichannel decoder (e.g.Dolby, Digital, DTS, etc) and 6-channel outp

11、ut, i.e. a highend DVD/SACD playerWhen using the 6 CHANNEL-DVD/SACD IN audioinput, the Receiver works as a multichannel amplifier. Thesource reproduces surround sound and sends it to theReceiver divided into the necessary channels. Thereforethe SURROUND button has no effect since the providedsignal

12、is already multichannel.From a source which is connected to the 6 CHANNEL-DVD/SACD IN, audio input cannot be recorded.OROption 2DIGITAL INConnect the OPTICAL or COAXIAL jack to theDIGITAL OUT jack on the DVD or SACD player. Youwill need to set the Receivers digital input to the jackyou connected to

13、(refer to “System Setup - Digital Input”)Connecting additional componentsFor listening to the playback from other audio/ visual devicesthrough the Reveiver Connect the AUDIO IN (TV/AV or AUX) jacks to theAUDIO OUT jacks on the TV, VCR or other audio/visualdevice.AND/OR Connect the DIGITAL IN ( OPTIC

14、AL or COAXIAL)jack to the DIGITAL OUT jack on other audio/ visualdevice. You will need to set the Receivers digital input to thejack you connected to ( refer to “System Setup - DigitalInput”).For recording to an external recording device Connect the AUDIO OUT jacks to the AUDIO IN jackson an analog

15、recording device.AND/OR Connect the DIGITAL OUT jack to the DIGITAL INjack on a digital recording device. You can only make a digitalrecording from digital signal received from the DIGITALIN jack on this receiver.Connecting antennasMW Indoor Loop AntennaConnect the supplied MW loop antenna to the MW

16、jack. Position the loop antenna to receive the clearestsound.FM Indoor AntennaConnect the supplied FM antennato the FM jack. Move the antennain various directions until theclearest signal is received.Note: Keep the antenna as far away aspossible from the TV, VCR or anyradiation source to prevent unw

17、anted noise.FM Outdoor AntennaFor better FM reception, use a 75 ohm coaxial cable (notsupplied) to connect the system to an outdoor FM antennaas shown.AM (MW) (MW) AM Fix the cla w to the slot 1-9Connections PreparationsNotes: If the audio format of the digital input does not matchthe capabilities o

18、f your Receiver, it will produce a strongdistorted sound or no sound at all Always refer to the instruction manual of the connedtedequipment to make an optimal connectionRecording from the digital outputIt is possible to connect a digital recorder to the digitaloutput of the receiver. In this way, a

19、ll signals coming fromthe digital inputs can be recorded directly on the connectedaudio recorder.The receiver can be used to record digital sound audiosignal from DVD to CD-R.Notes: Dolby Digital, DTS or MPEG signal are not possible torecord from this receiver. Digital recording is not possible when

20、 the digital sourcematerial is copy-protected.Inserting batteries into theremote control Open the batterycompartment. Place the batteries in thecompartment with the correctpolarity as indicated by + and- symbols. Close the cover.CAUTION! Remove batteries if they are exhausted or willnot be used for

21、a long time. Do not use old and new or different types ofbatteries in combination. Batteries contain chemical substances, so theyshould be disposed off properly.Setting up the surround soundsystemYou must connect all the speakers and set up the systemproperly in order to enjoy the Digital Cinema exp

22、erience athome (refer to “Connections - Connecting the speakers”).You will have the feeling of being in the middle of the actionbecause sound is coming from everywhere around you. Thesubwoofer can enhance the bass performance of yoursystem dramatically.IMPORTANT!Please sit at your usual listening po

23、sition in order toset up the speaker balance correctly.Placing the speakersTo obtain the best surround effect, place the speaker asfollows.1 Place the front left and right speakers at equal distancesfrom the TV and at an angle of approximately 45 degreesfrom the listening position.2 Place the center

24、 speaker above or below the TV, so thecenter channels sound is localized.3 Place the surround speakers at normal listening ear levelfacing each other or mounted on the wall.4 Place the subwoofer on the floor near to the TV.Notes:To avoid magnetic interference, do not position the frontspeakers too c

25、lose to your TV. If the rear surround speakers are installed farther away fromthe listening position than the front and center speakers, it willweaken the surround effect. All speakers should be securely installed to prevent accidentsand improve sound quality.Switching on the system1 After completin

26、g all the connections, connect the AC powercord of the Receiver to the wall outlet. The system will gointo STANDBY mode.2 Press STANDBY ON to switch on the last selectedsource.3 Rotate the SOURCE button or press TV/AV, DISC ,TUNER or AUX on the remote control to select theinput source. The selected

27、source will be displayed.1-10C 5 7 8 9 061 32 41 SURROUND to select multichannel surround(Dolby Digital, DTS,Dolby Pro Logic or Dolby Pro Logic II) or stereosound effect.2 TUNING S T to select the tuner frequency.3 BASS to select bass adjustment mode.4 TREBLE to select treble adjustment mode.5 STAND

28、BY ON y to switch between power on and standby mode.6 DISPLAY SCREEN shows the status of the system.7 PROGRAM in Tuner mode, to program MW/FM stations.8 SOURCE to select the desired source or external input source(TV/AV, DISC DI, DISC 6CH, TUNER or AUX).9 VOLUME to adjust the master volume.0 PHONE t

29、o connect headphones.Functional OverviewFront and Rear panels1 DIGITAL OUT connect to the digital inputs of an external audioequipment. is active only when receiving input from DIGITAL IN(Coaxial or Optical).2 WOOFER LINE OUT connect to an active subwoofer (optional).3 SPEAKERS connect to the front,

30、center, surround and subwooferspeakers.4 DVD/SACD IN connect from the 6 channel output of a DVD or SACDplayer.5 AC POWER CORD connect to a standard AC outlet.Caution: Do not touch the inner pins of the jacks onthe rear panel. Electrostatic discharge may causepermanent damage to the unit.6 MW / FM co

31、nnect to the MW loop antenna or FM antenna7 DIGITAL IN connect from audio equipment with digital (Coaxial orOptical) audio output.8 AUDIO IN (TV/AV, AUX) connect from the analog audio outputs of a TV orother equipment.9 AUDIO OUT connect to the analog audio inputs of an externalrecording device or amplifier.+ + + AC MAIN S . . 7 8 961 2 3 4 5