JBL-SUB350-sub-psm 维修电路原理图.pdf

simply cinemaSUB350Dolby Pro-Logic SurroundAmplifier/SubwooferPRELIMINARYSERVICE MANUALJBL Consumer Products250 Crossways Park Dr.Woodbury, New York 11797RadioFans.CN 收音机爱 好者资料库Note: The SUB350 is part of the ESC350 systemService data for the ESC350 Processor/CD player/Tuner, the“Source” is available in a separate service manualThe “Source” is necessary to test or play the SUB350.Parts for satellite loudspeakers 300SAT are also available inseparate service literature- CONTENTS -BASIC SPECIFICATIONS .1CONNECTIONS/SET-UP GUIDE.2BASIC TROUBLESHOOTING.14EXPLODED VIEW. .15PARTS LIST . .16SCHEMATICS.22PACKAGE.24BASIC SPECIFICATIONSESC350 SYSTEMTotal System Output200 wattsFront channels 35 watts x 3 .1% THDSurround channels 15 watts x 2 .1% THDSubwoofer 65 watts .1% THDFrequency response35Hz 20kHzS-N ratio90 dBInput Impedance20k OhmsInput Sensitivity1500mVSUB350Dimensions15 1/8 x 13 x 14 ” (384 x 330 x 368mm)Weight34.5 lbs. (15.7 kg)Occasional refinements may be made to existing products without notice but will always meet or exceed originalspecifications unless otherwise statedRadioFans.CN 收音机爱 好者资料库1 6 ConnectionsConnect TV or VCR to The SourceJBL ESC350Powered SubwooferOutInA or BTVTape/AuxAMLoopUS EuropeTunerFrequencyStandardRear Panel of The SourceTV or Hi-Fi VCRAntennaFM75LRLRAUDIO OUTJBL ESC350Powered SubwooferOutInA or BTVTape/AuxAMLoopUS EuropeTunerFrequencyStandardAntennaFM75LRINPUTSUBWOOFER LEVELRear Panel of The SourceRear Panel of SubwooferOUTPUTSRIGHTCENTERLEFTRIGHTLEFTFRONT SPEAKERSSURROUNDSPEAKERSMin MaxJBL ESC350Powered SubwooferOutInA or BTVTape/AuxAMLoopAMAntennaFM AntennaUS EuropeTunerFrequencyStandardAntennaFM75LRRear Panel of The SourceConnect The Source to a SubwooferConnect Antennas to The SourceConnect Optional Cassette Deck to The SourceJBL ESC350Powered SubwooferOutInA or BTVTape/AuxAMLoopUS EuropeTunerFrequencyStandardRear Panel of The SourceCassette DeckAntennaFM75LRLROUTLRINNote: The Source also provides a stereo mini-jack (B)to provide an easy connection to devices that have a stereomini-jack audio output.ESC350 Simply Cinema OM 9/11/98 2:06 PM Page 62 7 Left FrontCenterRight FrontOUTPUTSRight SurroundLeft SurroundFRONT SPEAKERSSURROUNDSPEAKERSRIGHTCENTERLEFTRIGHTLEFTSpeaker and Amplifier ConnectionSpeaker ConnectionsESC350 Simply Cinema OM 9/11/98 2:06 PM Page 73 8 OperationVolumeMuteVolume+?VolumeTHE SOURCETo raise volume: Turn control on The Sourceclockwise or MuteTo lower volume completely: Push “Mute” on the remote control.When “Mute” is pushedagain, the volume willreturn to its original level.MuteVolume+?VolumeMute+?VolumeTHE SOURCETo lower volume:Turn volume control on The Source counter-clockwise or REMOTEpush “” on the remotecontrol.REMOTEREMOTEpush “+” on the remotecontrol.CDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble + Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlESC350 Simply Cinema OM 9/11/98 2:06 PM Page 84 9 Treble + Treble + + Treble +SurroundCalibrate+SurroundCalibrate+THE SOURCETo raise the treble level:Push “+” on The Source or THE SOURCETo lower the treble level: Push “” on The Source or REMOTEpush “Calibrate” on the remote control until “Treble”illuminates in The Source display. Push “” until youreach the desired level.REMOTEpush “Calibrate” on the remote control until “Treble”illuminates in The Source display. Push “+” until youreach the desired level.Bass Bass +Surround Mode Treble Bass +Surround Mode Treble SurroundCalibrate+SurroundCalibrate+THE SOURCETo raise the bass level:Push “+” on The Source or THE SOURCETo lower the bass level: Push “” on The Source or REMOTEpush “Calibrate” on theremote control until “Bass”illuminates in The Source display. Push “” until youreach the desired level.REMOTEpush “Calibrate” on theremote control until “Bass”illuminates in The Sourcedisplay. Push “+” until youreach the desired level.ESC350 Simply Cinema OM 9/11/98 2:06 PM Page 95AM/FMTVAuxTo Scan within the Same TrackSkipSearchTuneTHE SOURCEPush “” onThe Source or REMOTEthe remote control. 10 CD OperationOpenPowerVolumeSearchTuneTo Skip to a Different TrackAM/FMTVAuxTVAuxSurroundSkipSearchTuneTHE SOURCEPush “|” on The Source orREMOTEthe remote control until thenumber of the desired trackappears on the display.THE SOURCE1. Push “Power” and/or“Open” on The Source.2. Insert CD.REMOTEthe remote control. (The door will close automatically.)THE SOURCE3. Push “Play” on TheSource or CDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble +Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlTo Play a CDESC350 Simply Cinema OM 9/11/98 2:06 PM Page 106 11 To Program the CD OpenPowerVolumeSkipSearchTuneTuner PresetsAuto AddDeleteTVAuxSurroundTo Pause the CDSearchTuneSearchTuneTo Stop the CDTVAuxSurroundTHE SOURCE1. Push “Power” and/or“Open” on The Source.2. Insert CD.THE SOURCE4. Push “Add” to programtrack. Repeat procedureuntil all desired tracks areprogrammed.THE SOURCE3. Push “|” toselect desired track.THE SOURCEPush “Stop” on The Sourceor REMOTEthe remote control.THE SOURCEPush “Pause” on The Sourceor REMOTEthe remote control. Pushagain to resume play.To Play the Tracks of a CD in Random OrderCDRandomTVAuto TuneAM/FMRepeatPush “Random” on The Source.The Source will automaticallydelete each track it has playedfrom the “Random” operation.To Repeat the DiscCDRandomStereo/MonoTape/AuxTVAuto TuneAM/FMRepeatNote: If “Random” and“Repeat” are both engaged theCD player will randomly playthe disc, deleting all playedtracks, until the disc is finished. It will then randomlyplay the disc again.THE SOURCETHE SOURCEPush “Repeat” on The Source.ESC350 Simply Cinema OM 9/11/98 2:06 PM Page 117 12 Tuner OperationPowerStereo/MonoTape/AuxTVAuto TuneAM/FMRepeatRearTo Switch Between AM and FMStereo/MonoTape/AuxTVAuto TuneAM/FMRepeatRearTo Tune to a Particular StationAM/FMTVAuxMuteVolumeCDAM/FMPowerSleep+MuteVolumeCDAM/FMPowerSleep+SkipSearchTuneTHE SOURCEPush “Power” on The SourceorREMOTEthe remote control.THE SOURCE“AM/FM” on The Source orTHE SOURCEPush “AM/FM” onThe Source or REMOTEthe remote control.THE SOURCEPush “” on The Source or REMOTEthe remote control. Tosearch rapidly, hold downthe “” button.CDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble +Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlESC350 Simply Cinema OM 9/11/98 2:06 PM Page 128 13 If a Selected FM Station is a Little NoisyStereo/MonoTape/AuxTVAuto TuneRearSpeakersAM/FMTVAuxTo Have the Tuner Search for the Next Strong StationStereo/MonoTape/AuxTVAuto TuneAM/FMRepeatRearSpeakersSkipSearchTuneSkipSearchTuneAM/FMTVAuxTHE SOURCEPush “Stereo/Mono” on TheSource. This will play theselected station without any stereo separation, but there will be much less background noise.REMOTEthe remote control will tune up or down one frequency at a time.THE SOURCEWhen in the “Mono” mode,the “” on TheSource orTHE SOURCEPush “Auto Tune” on The Source.REMOTEthe remote control, thetuner will automaticallyadvance to the next station with a strong signal.THE SOURCEThen, when you push “” on The Source orESC350 Simply Cinema OM 9/11/98 2:06 PM Page 139 14 The Source has a unique feature that will automati-cally place up to 32 stations in memory. To activate this feature, pushand hold the “Auto” buttonfor one second. The tunerwill search the dial andplace the stations with astrong signal into memory.Preset OperationTuner PresetsAuto AddDeleteSkipSearchTuneTuner PresetsAuto AddDeleteNote: Activating this featurewill delete all stations thatwere previously stored in memory. To prevent this fromaccidentally occurring, theAuto button will only activateif held for a full second.Tuner PresetsAuto AddDeleteAM/FMTVAuxTHE SOURCE1. Tune to the station that you want to add into memory.2. Push “Add” on The Source. That station is nowadded to your selection of stations in memory.THE SOURCE3. To delete a preset:Push “Delete” on The Source.That station is now removedfrom your selection of stations in memory.THE SOURCE4. To skip between preset stations: Push “|”on The Source or THE SOURCEREMOTEthe remote control.CDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble +Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlESC350 Simply Cinema OM 9/11/98 2:06 PM Page 1410 15 1. Dolby Pro Logic In this mode all fivespeakers are used.2. Dolby Pro Logic Phantom In this mode the centerchannel does not operate.This may be preferredwhen listening to a musicsource that was notrecorded with surround-channel information.3. 2-channel In thismode the program isplayed back in a tra-ditional stereo form.What is Dolby*Pro Logic*?Dolby*Pro Logic*is anencode/decode process bywhich four channels ofsound-track informationare encoded into two channels for playback onVCRs, laser disc players,and some TV broadcasts,and then decoded backinto four channels for playback through five loudspeakers. Rememberthat a Dolby Pro Logic system consists of threechannels of information for front left, center, andright speakers and onechannel of mono surroundinformation. The surroundchannel is played backthrough two speakers.Dolby Pro Logic helps tore-create all of the impactand excitement of a movietheater in your home. Bass +Surround ModeRearSpeakersStereo/MonoTape/AuxRearSpeakersThis system contains three surround modes.AuxSurroundToneCalibrate+THE SOURCETo switch between thethree surround modes: Push “Surround Mode” onThe Source or THE SOURCEIf you are listening to aprogram in the Dolby ProLogic Normal or Phantommode and you wish to turnoff the surround speakers:Push “Rear Speakers” on The Source.REMOTEthe remote control.Surround Mode OperationCDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble +Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlESC350 Simply Cinema OM 9/11/98 2:06 PM Page 1511 16 For proper Dolby Pro Logicoperation, a test tone is used to calibrate the volume settings of thespeakers. A noise will beheard cycling, in order,from the front left, center,right, and both surroundspeakers.Using the remote control,push “Tone.” Then adjustthe Center and Surroundlevels until the volume of all the speakers is the same during the test.Note: The test tone is used to calibrate the performance of the system.When listening to an actualrecording, the volume levelof the surround channels isgenerally much lower thanthat of the front channels.In fact, when listening to amovie, virtually all of thedialogue and a substantialnumber of the effects arereproduced through thecenter channel.Test ToneBalanceSurroundCalibrate+SurroundCalibrate+SurroundCalibrate+Center-Channel VolumeSurroundCalibrate+SurroundCalibrate+SurroundCalibrate+AuxSurroundToneCalibrate+REMOTE Push “Calibrate” on theremote control until“Balance” appears in thedisplay.REMOTEPush “” on the remote control to adjust the balance toward the leftspeaker.REMOTEPush “+” on the remote control to adjust the balancetoward the right speaker.REMOTE Push “Calibrate” on theremote control until “Center”appears in the display andthe corresponding LED ontop of the display is lit.REMOTEPush “” on the remote control to decrease the volume of the center channel.REMOTEPush “+” on the remote control to increase thevolume of the centerchannel.THE SOURCECDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble +Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlRear-Channel VolumeSurroundCalibrate+SurroundCalibrate+SurroundCalibrate+REMOTEPush “Calibrate” on theremote control until “Rear”appears in the display andthe corresponding LED on top of the display is lit.REMOTEPush “” on the remote control to decrease the volume of the rear channels.REMOTEPush “+” on the remotecontrol to increase the volume of the rearchannels.ESC350 Simply Cinema OM 9/11/98 2:06 PM Page 1612 17 Delay TimeThe delay control allowsthe user to set the sur-round delay between 15and 30 milliseconds in one-millisecond increments.The best setting willdepend on the distancebetween the main listening area and thefront speakers as well asthe distance between themain listening area and the rear speakers. The chartat the bottom shows therecommended settings.0 5 10 1520 25 30 35 4040353025201510 5 015ms15ms15ms20ms25ms30ms30ms30msDistance (in feet) From Front SpeakersDistance (in feet) from Rear SpeakersPreferable AcceptableSurroundCalibrate+SurroundCalibrate+SurroundCalibrate+REMOTEPush “Calibrate” on theremote control until “Delay”appears in the display andthe corresponding LED ontop of the display is lit.REMOTEPush “” on the remote control to decrease the delay time.REMOTEPush “+” on the remote control to increase the delay time.CDOpenRandomPowerVolumeSkipSearchTuneStereo/Mono Bass +Surround Mode Treble +Tuner PresetsAuto AddTape/AuxTVAuto TuneAM/FMRepeatDeleteRearSpeakersTMMuteVolumeCDAM/FMTVAuxSurroundToneCalibratePowerSleep+The SourceRemote ControlESC350 Simply Cinema OM 9/11/98 2:06 PM Page 1713 18 If there is no sound from anyof the speakers, check thefollowing: Make sure the subwoofer isplugged into an active AC wall outlet. Make sure the Master PowerSwitch, located on the rear of thesubwoofer, is in the “On/Standby”position. Make sure there is a source for example, a VCR or television hooked up to the TV or tape/auxinput jacks on The Source. Make sure that the program material is playing. Recheck the hookup connec-tions.If most of the sound comes fromthe center-channel speaker, withlittle or no information from the surround channels, note the following:Although most of todays televi-sions are equipped with stereoaudio output jacks, some stereotelevisions have poor audio sec-tions and are unable to provide aDolby Pro Logic encoded signal. Inthe unlikely event that you experi-ence this problem, connecting theaudio outputs from your hi-fi VCR,laser disc player, DVD player, orsatellite receiver directly to one ofthe inputs on The Source will pro-vide a proper audio signal andallow you to enjoy true Dolby ProLogic surround sound.If there is no sound from thesurround speakers or sound isvery low, check the following: Check all connections betweenthe amplifier and each of thespeakers. Raise the surround volume from the remote control (see “Operation” section). Make sure the TV show or movie you are watching is recorded inDolby Surround.If there is no sound from thecenter speaker, check thefollowing: Make sure that the processor is in the Pro Logic mode. If it is in Phantom or Stereo mode, thecenter