JBL-SUB333-sub-sm 维修电路原理图.pdf

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1、SUB33360W Subwoofer(Part of the ESC333 system)JBL Consumer Products Inc.250 Crossways Park DriveWoodbury, N.Y. 117971-800-336-4JBL in the USAA Harman International CompanyRev A 2/00SERVICE MANUALRadioFans.CN 收音机爱 好者资料库2Dolby Pro-Logic?Surround Processor/Amplifier/SubwooferSUB333TABLE OF CONTENTSESC3

2、33 SPECIFICATIONS.2IMPORTANT NOTE.4FEATURES.4ESC333 SPEAKER, SOURCE & REMOTESENSOR CONNECTIONS.5ABOUT DOLBY DIGITAL .5REMOTE AND FRONT-PANEL CONTROLSAND INDICATORS.6SUB333 BLOCK DIAGRAM.9SUB333 UNIT EXPLODED VIEW.10SUB333 MECHANICAL PARTS LIST.11SUB333 ELECTRICAL PARTS LIST .12ESC333 PACKING EXPLODE

3、D VIEW .20SUB333 MAIN PCB .21SUB333 POWER PCB.22SUB333 DC PCB.23SUB333 JACK & CONTROL PCBs.24SUB333 DECODER PCB (Top View).25SUB333 DECODER PCB (Bottom View).26SUB333 LIMITER PCB.27INTEGRATED CIRCUIT DIAGRAMS.28SUB333 WIRING DIAGRAM .34SUB333 LIMITER SCHEMATIC.35SUB333 AC3 SCHEMATIC .36SUB333 MAIN S

4、CHEMATIC .37ESC333 SPECIFICATIONSLINE VOLTAGEVoltageHi/Lo LineUS 120vac/60HzYes120VAC108-132VACEU 230vac/50-60HzYes230VAC207-264VACParameterSpec.UnitConditionsNotesSat. Amplifiers 30w x 5 ch. sectionType (Class AB, D, other)ABESC350 Sink requiredLoad Impedance (speaker)6OhmsNominalZ-curve requiredRa

5、ted Output Power30WattsALL CH.drivenMarketing Spec.THD Rated Power0.08%22k filter30w (BW 120Hz-15kHz)THD 1 Watt0.1%22k filterMax. Output Power35Watts2 ch. Stereo Mode Max1%THDDC Offset2mV-DC Speaker OutputsDamping factor200DFInput Sensitivity(L,C,R,LS,RS)Input Frequency1kHzNominal Freq.1 input drive

6、nLine Input: Video/AUX265mVrmsTo Rated Power/ Vol Max1 input drivenSignal to Noise(L,C,R,LS,RS)SNR-A-Weighted100dBArelative to 30w power/ 1k ohm term.A-Weighting filterSNR-unweighted75dBrrelative to 30w power/ 1k ohm term.22k filterSNR rel. 1W-unweighted65dBrrelative to 1W Output/ 1k ohm term.22k fi

7、lterResidual Noise Floor1mVrmsVolume max, using RMS readingDMM/VOM (or A/P)Filters/EQ(L,C,R,LS,RS)HPF,Notch,HF boostFixeddBr0dBr = 1w 1kHzSubwoofer Amp 60w x 1 ch. sectionType (Class AB, D, other)ABLoad Impedance (speaker)4OhmsNominalRated Output Power60WattsALL CH.drivenTHD Rated Power0.08%22k filt

8、er60w (BW 30-120Hz)RadioFans.CN 收音机爱 好者资料库ParameterSpec.UnitConditionsNotesTHD 1 Watt0.1%22k filterMax. Output Power80Watts2 ch. Stereo Mode 50Hz1%THDDC Offset2mV-DC Speaker OutputsDamping factor200DFInput SensitivityInput Frequency50HzNominal Freq.1 input drivenLine Input: Video/AUX265mVrmsTo Rated

9、 Power/ Vol Max1 input drivenSignal to NoiseSNR-A-Weighted100dBArelative to 60w power/ 1k ohm term.A-Weighting filterSNR-unweighted75dBrrelative to 60w power/ 1k ohm term.22k filterSNR rel. 1W-unweighted65dBrrelative to 1W Output/ 1k ohm term.22k filterResidual Noise Floor1mVrmsVolume max, using RMS

10、 readingDMM/VOM (or A/P)Input ImpedanceLine Input: Video/AUX20kohmsNominalOpticalCoaxFilters/EQ0dBr = 1w 50HzHPF, LPFFixeddBr0dBr = 1w 50HzSignal Sens. (ATO)Auto-Turn-On (yes/no)yesATO Input Frequency1kHzATO Level2mV2mV50Hz into Line Input w/ 1 ch. drivenATO Bandwidth5kHzATO-LPF for noise immunityAT

11、O Turn-on time5msAmp connected and AC on, then inputsignal appliedAuto Mute/ Turn-OFF20min.T before muting, after signal is removedPower on Delay time3sec.AC Power AppliedTransients/PopsSignal-Present Transient5mV-peak Speaker OutputsTurn-on Transient50mV-peak Speaker OutputsAC cycled fromOFF to ON

12、or ON to OFFEfficiencyStand-by Input Power15Watts nom. line voltageMax Power Consumption425Watts nom. line voltage rated powerEfficiency50%Nominal. At rated outputProtectionShort Circuit ProtectionyesDirect short at outputThermal Protectionyes1/8 max unclipped PowerDC Offset ProtectionyesDC present

13、at Speaker Out leadsLine Fuse Rating5AmpsType-T or Slo Blo3Dolby Pro-Logic?Surround Processor/Amplifier/SubwooferSUB3334Dolby Pro-Logic?Surround Processor/Amplifier/SubwooferSUB333IMPORTANT NOTEAutomatic On/Off and AutomaticDigital-Input SelectionThe ESC333 offers two unique user-convenience feature

14、s:Automatic Turn-On/Shut-Down and Automatic Digital-InputSelection.The Automatic Turn-On feature will turn the ESC333 on assoon as a source connected to its digital inputs (such asDVD, CD player with digital output, or any other devicefeaturing a coaxial or optical digital output) is switched on, or

15、as soon as the unit connected to its last-used analog inputstarts outputting sound.When using digital inputs, the Automatic Turn-On can beactivated by turning on either one of the connected digitalsources such as a DVD player or a CD player with digitaloutput. When using analog inputs (TV or AUX), A

16、utomaticTurn-On is available only for the device that was lastlistened to before the ESC333 shut down. In order to listento the other device, the ESC333 input needs to be manuallyselected by using the Input button on the product and on theremote, which, in turn, disables the Automatic Digital-InputS

17、elector until the ESC333 is shut down.The Automatic Turn-Off shuts the unit down five minutesafter all sources connected to its digital inputs are powereddown and the device connected to its selected analog inputstops playing.The Automatic Digital-Input Selector automatically selectsthe source conne

18、cted to its digital inputs when that source ispowered on. Upon power down of this digital unit, if no othersource is on, the ESC333 will switch itself off after fiveminutes.If the analog source that was selected prior to the digitalsource turning on is still playing, the ESC333 will switchback to th

19、at other source. Once a digital source is poweredon and selected as an input, turning on a device connectedto the other digital input will not switch the input until theselected digital device is first powered off. These twofeatures can only be used if the customer does not manuallyturn the ESC333 o

20、n or off, and does not manually select aninput source. Once either of these selections is mademanually, the automatic features are disabled as follows:1. If the ESC333 is turned off manually, it will not turn backon automatically until five minutes after the sourceconnected to the ESC333 is shut dow

21、n. During these fiveminutes, it can be turned on either from the front panel or viathe remote control.2. Once an input source is selected manually, the AutomaticSource-Selection feature will remain disabled until theESC333 shuts down.3. Once any one of the two devices connected to theESC333 digital

22、inputs is powered on and its input is selectedby the ESC333, the device connected to the other digitalinput of the ESC333 cannot be automatically selected untilthe already-selected digital device is powered down.FEATURES Complete, self-powered Dolby* Digital home-cinemasound system with five satelli

23、te speakers, subwoofer,remote control, and all amplification built in. (Just Add TV!) Dolby Digital (AC-3* 5.1 channel), Dolby Pro Logic,*including Phantom and 3-Stereo, and Stereo listeningmodes. Automatic Turn-On and Turn-Off. Automatic Source Switching for the digital inputs. Two digital (one opt

24、ical and one coaxial) inputs and twoanalog inputs. 2-Way video-shielded micro-satellites with titaniumlaminate tweeters and common voicing for all five channels,and an 8-inch, long-throw, floor-firing subwoofer. Late Night compression for nighttime listening withoutunexpected and objectionably loud

25、passages. All amplification and controls are mounted in thesub-woofer, eliminating the need for a separate control unit. Remote controllable via outboard remote eye that can bemounted with the center channel or separately, so that thesubwoofer can be hidden away. Wall-mount brackets and floor stands

26、 available separatelyfor the satellites. Credit-card-type, full-function remote control. JBL “error free” speaker cables simplify connection andeliminate possibility of out-of-phase wiring. Center foot for horizontal placement of the center channel. Rotatable JBL logos to allow for vertical or horiz

27、ontalplacement of the satellites.5Dolby Pro-Logic?Surround Processor/Amplifier/SubwooferSUB333Left FrontTVOPTICALRightLeftCenterRight FrontRemote SensorCOAXIALTVAUXCOAXIALOPTICALRight SurroundLeft SurroundFRONTSPEAKERSSURROUNDSPEAKERSRIGHTCENTERLEFTRIGHTLEFTAC POWERON / STANDBYOFFREMOTE SENSORINPUTR

28、IGHTAUX(Additional Audio Source)Audio OutputRightLeftANALOGINPUTSDIGITALINPUTSDigital Source ADVD or CDDigital OutputDigital Source BDVD or CDDigital OutputLEFTESC333 SPEAKER, SOURCE & REMOTE SENSOR CONNECTIONSABOUT DOLBY DIGITALThe ESC333 features Dolby Digital (also unofficially knownas AC-3) mult

29、ichannel signal processing, a systemdeveloped by Dolby Laboratories.Dolby Digital, unlike “matrixed” systems (such as Dolby ProLogic) that derive and decode multichannel sound from twochannels of sound, is capable of delivering information forone subwoofer and five full-range channels as discrete an

30、dindividual channels in digital AC-3 data format from sourcessuch as a DVD player. The result is clear and accuratedigital sound to each speaker, along with availability ofstereo-surround effects (Dolby Pro Logic features monosurrounds).Dolby Digital is capable of delivering several differentformats

31、 of surround sound, the most robust one being the5.1-channel mode, which provides separate signals for fivesatellite speakers as well as for a subwoofer. The ESC333features a “5.1-Ch” indicator that illuminates when a DolbyDigital 5.1-channel encoded signal is present. Dolby Digitalcan also provide

32、other AC-3 digital multichannel signals, aswell as 2-channel signals, which can be decoded via DolbyPro Logic processing into multichannel surround sound. Inthe latter case, both the Dolby Pro Logic and Dolby Digitalindicators will illuminate in the ESC333 display.REMOTE AND FRONT-PANEL CONTROLS AND

33、 INDICATORS1. PowerThis button, located only on the remote control, allows theuser to manually turn on or off the ESC333. Please note thatthe ESC333 features Automatic Turn-On/Off, and the powerswitch is not normally used unless it is necessary to overridethis automatic feature, or in case the analo

34、g input to be usedis not the last one that was used and so Automatic Turn-Onis not available for that input. Please read the detailsregarding Automatic Turn-On/Off on page 3 of this manual,and keep in mind that if the ESC333 is shut down using thispower button, its automatic turn-on feature will rem

35、aindisabled for five minutes after the source connected to theESC333 is also shut down. This is to prevent the ESC333from repeatedly turning itself back on against the userswishes. The ESC333 can also be powered on by using theInput button (4) on the front panel of the subwoofer or on theremote cont

36、rol. Please note that if input selection is done bypressing the Input button, the Automatic Digital InputSelection of the ESC333 will be disabled until the ESC333shuts down.When the ESC333 is plugged into a working electrical outletand its master switch on the back panel is set toOn/Standby, the Sta

37、ndby (32) indicator will illuminate. TheON (31) indicator will light as soon as the ESC333 is turnedon either automatically or via the pressing of the Power orInput buttons.2. MuteFrom either the front panel or the remote control, press(Mute) to lower the volume completely. The mute symbolindicator

38、(33) will illuminate. When you press either of themute buttons again, the volume will return to its previoussetting.Note: The mute function can also be turned off by pressingeither of the volume buttons on the front panel or the remotecontrol.6Dolby Pro-Logic?Surround Processor/Amplifier/SubwooferSU

39、B333LATE NIGHTPOWERMUTESURROUNDMODEINPUTADJUSTMENTTREBLEBASSVOLUME123794568101312110 dBDELAYTESTLEVELDOLBYD I G I T A LInputSurround ModeVolumeMuteLate NightLVL3-StPhantomSurroundPCMSUBProLogicDigital5.1 ChAUXDLYTVDIG. COAXDIG. OPTONSTANDBYLSLFCRFRS2319 22202421262530172829546227181615143132333. Lat

40、e NightThis feature is available for Dolby Digital only. Itcompresses the inherently dynamic digital sound so that thequiet and loud passages are not quite as different in soundlevels as they ordinarily are. This feature allows the user towatch movies and listen to dialogue at toned-down levels soas

41、 not to disturb others by the loud sound effects that maybe present. The Late Night indicator (26) illuminates whenthis feature is active.4. InputThis control is available on both the front panel and theremote control. It allows manual selection when the userrepeatedly presses and releases the butto

42、n for any of theESC333s four inputs. The ESC333 features an AutomaticDigital Input Selection feature that automatically switchesthe ESC333 to the source connected to one of its two digitalinputs as soon as that device is powered on. Please readthe section on page 3 to thoroughly familiarize yourself

43、 withthe conveniences and conditions of using the AutomaticDigital Input Selection feature. The Input switch is also usedwhen the source connected to the ESC333s analog input isnot the analog source that was listened to the last time theESC333 was on (and hence the Automatic Turn-On featureis not av

44、ailable). The Input switch also turns on the ESC333when pressed (see item 1 earlier in this section). Whenevera specific input is selected either manually or automatically,its indicator (14, 15, 16 or 17) on the ESC333s front panelwill be illuminated.5. Surround ModePressing and releasing this butto

45、n allows the selection ofdifferent listening modes. Surround (18), Phantom (19) and3-Stereo (20) are available listening options for Dolby Digitaland Dolby Pro Logic. Stereo (21) bypasses the surroundprocessing and outputs sound through the right andleft-front speakers only. In Surround mode, all fi

46、ve satellitesand the sub-woofer will play. In Phantom mode, all speakersexcept the center channel will play. In 3-Stereo, all speakersexcept for the two surround speakers will be active.6. VolumePress (+) on the remote control or the front panel to raisethe systems volume. Press (-) on the remote co

47、ntrol or thefront panel to lower the systems volume. The volumesetting is indicated on the status-bar indicator (27).7. 0 dBPress this button to reset the Center, Surround, Balance,Treble and Bass controls to their default positions.8. TestPress this button to activate the Test Tone mode.9. DelayThe

48、 relative timing of sounds coming from the center and/orsurround speakers compared to the front-left and front-rightspeakers can be adjusted. The first press of this buttonallows adjustment of the center channel, all the way fromthe default setting of 0 ms (milliseconds), which means nodelay (all st

49、atus bars off), to a maximum of 5 ms (5 statusbars on). The indicators C (28) and DLY (30) will be on. Thesecond press of the Delay button allows adjustments of thesurround speakers; indicators LS (28) and RS (28) and DLY(30) will be on. The delay can be adjusted from zero (allstatus bars off) to 15

50、 ms (all status bars on) in 5.1 ChannelDolby Digital and from 15 ms (all status bars off) to 30 ms(all status bars on) in Dolby Pro Logic (there is an inherentand fixed 15 ms of delay added in the “matrixed” Dolby ProLogic to recreate the proper surround effect). The centerand surround delay adjustm