JBL-SUB500-sub-sm 维修电路原理图.pdf

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1、 Surround Cinema SUB500 SUB500 Amplifier/Subwoofer SERVICE MANUAL JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Released 2007 Rev0 6/2007 Discontinued XXXX RadioFans.CN 收音机爱 好者资料库 Note: The SUB500 is part of the SCS500.5 system Satellite loudspeakers SCS500SAT: order JBL part

2、# SCS500BK SAT-E Center channel SCS500CEN: order JBL part# SCS500BK CEN-E - CONTENTS - BASIC SPECIFICATIONS.1 DETAILED SPECIFICATIONS .2 PACKAGING/ACCESSORIES.4 CONNECTIONS.5 OPERATION .6 BASIC TROUBLESHOOTING.6 TEST SET-UP AND PROCEDURE.7 EXPLODED VIEW/PARTS LIST.8 BLOCK DIAGRAM.9 PCB DRAWINGS.10 1

3、20V ELECTRICAL PARTS LIST .12 230V ELECTRICAL PARTS LIST .15 INTEGRATED CIRCUIT/TRANSISTOR PINOUTS.18 120V SCHEMATICS. 19 230V SCHEMATICS. 22 SUB500 BASIC SPECIFICATIONS Amplifier Output 150 Watts RMS Frequency Response 30Hz 120Hz (6dB) Woofer 10 (254mm) Enclosure Bass-reflex Dimensions (H x W x D)

4、20 x 13-3/4 x 15-3/4 (508mm x 349mm x 400mm) (including feet) Weight 35 lb (15.9kg) Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications unless otherwise stated RadioFans.CN 收音机爱 好者资料库JBL SUB 500 150W Powered Sub/ Plate Amp LIN

5、E VOLTAGEYes/NoHi/Lo LineUnitNotesUS 120VAC/60HzYes108-132VrmsNormal Operation Asia 100VAC/50HzYes90-110VrmsNormal OperationEU 230VAC/50-60HzYes207-264VrmsNormal OperationNormal operation, MOMS requiredParameterSpecificationUnitQA Test LimitsConditionsNotesAmp SectionType (Class AB, D, other)DD N/AL

6、oad Impedance (speaker)4OhmsN/ANominalRated Output Power150Watts1401 input drivenTHD Rated Power0.5%122KHz filterTHD 1 Watt0.1%0.322KHz filterDC Offset10mV-DC50 Speaker OutputsDamping factor100DF30Measured at speaker terminals, Output power 140 Watts THD 0.1 %Input SensitivityInput Frequency50Hz50No

7、minal Freq.1 input drivenLine Input (L&R)250mVrms2dBTo rated power1 input drivenLFE Input145mVrms2dBTo rated powerLFE input driven onlySpeaker/Hi Level Input2.5Vrms2dBTo rated power(-20 dB below Line In).1 input drivenSignal to NoiseSNR-A-Weighted100dBA85rel. to rated powerA-Weighting filterSNR-unwe

8、ighted90dBr80rel. to rated power22KHz filterSNR 1W-unweighted60dBr55rel. to 1W Output22KHz filterResidual Noise Floor1mVrms2Volume max, using RMS reading DMM/VOM (or A/P)Residual Noise Floor1mVrms(max)2Volume max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics)Input ImpedanceLine input L&R

9、 , LFE10K ohmsN/ANominalSpeaker/Hi Level Input4.7K ohmsN/ANominalFiltersLeft & Right Low Pass fixedHz-2dBSlope & Q4thdB/OctaveN/ALFE Low Pass fixedHz-2dBSlope & Q2nddB/OctaveN/ASubsonic filter (HPF)Hz-2dBSlope & Q2nddB/OctaveN/ALimiter (yes/no)YES-N/ATHD at Max. Output PowerN/A-N/AFeaturesLFE InputY

10、ESfunctional BW Limited to 500 HzVolume pot Taper (lin/log)log-functional ATOYESfunctional Input ConfigurationLine In (L,R)L ,R-functionalRCA inputs: L , R Summed to MonoLine level in LFELFEfunctionalSpkr/Hi Level In (L,R)L,R-functionalL R Summed to MonoSpkr Out: Level out (L,R)Hi PL,RfunctionalDire

11、ct by pass from Speaker inSignal Sensing (ATO)ATO test Frequency50HzfunctionalATO Line Level2mVfunctional2mV50Hz into Line Input w/ 1 ch. drivenATO Speaker level input50mVfucntional50mV50Hz into Line Input w/ 1 ch. drivenATO Turn-on time5msfunctionalAmp connected and AC on, then input signal applied

12、Auto Mute/ Turn-OFF Time15minutesfunctionalT before muting, after signal is removedAuto turn of time (T) must be 10 T 15 SUB500 (SCS500.5 Subwoofer) 2ParameterSpecificationUnitQA Test LimitsConditionsNotesPower on Delay time3sec.functionalAC Power AppliedTransients/PopsATO Transient5mV-peak10 Speake

13、r OutputsTurn-on Transient50mV-peak100 Speaker OutputsAC Line cycled from OFF to ONTurn-off Transient50mV-peak100 Speaker OutputsAC Line cycled from ON to OFFEfficiencyStand-by Input Power14Watts15 nom. line voltageMaximum allowable input power under nominal Input voltage and frequency, HOT or COLD

14、operation.Power Cons.rated power250Watts260 nom. line voltage150 Watts 4 Ohms nominal line voltageProtectionShort Circuit Protection YES-functionalDirect short at outputThermal Protection 65 deg. C-functional1/8 max unclipped Power Temperature rise should not exceed 35K riseDC Offset ProtectionYES-f

15、unctionalDC present at Speaker Out leadsRelay or crowbar (for driver/fire protection)Line Fuse RatingUS Version2.5AmpsType-T or Slo BloExternal fuse with UL/SEMKO rated holderEU Version1.6AmpsType-T or Slo BloExternal fuse with UL/SEMKO rated holder SUB500 (SCS500.5 Subwoofer) 3 SUB500 (SCS500.5 Sub

16、woofer) 4(NON-DIGITAL) LINE LEVELUse this installation methodfor Dolby Pro Logic applica-tions (not Dolby Digital, DTSor other digital processing),where the receiver/proces-sor is equipped with a sub-woofer output, or a volume-controlled preamp (line-)level output:Use RCA-type interconnectsto connec

17、t the line-level subwoofer outputs on yourreceiver or amplifier to theline-level inputs on the sub-woofer. IMPORTANT: Do notuse the LFE input on the sub-woofer with Dolby Pro Logicprocessors. NOTE: If your receiver oramplifier only has one sub-woofer output jack, then youwill need to use a Y-connect

18、or(not included). Plug the maleend of the Y-connector intoyour receiver or amplifierssubwoofer output jack, andconnect each of the twofemale ends to separateRCA-type interconnects.Finally, plug the RCA-typeinterconnects into the line-level inputs on the sub-woofer.Connect each speaker to the corresp

19、onding speakerterminals on your receiver or amplifier.Make sure your receiver orprocessor is correctly con-figured to indicate that thesubwoofer is “On.”Note for advanced users: Ifyour receiver/processor hasa built-in low-pass crossoverfilter for the subwoofer out-put, you may use the LFEinput to by

20、pass the sub-woofers internal crossover.Use this installation methodfor Dolby Digital, DTS orother digital surroundprocessors: Use the line-level input jackmarked “LFE” for the Low-Frequency Effects channel.Connect this jack to the LFEoutput or subwoofer output on your receiver or amplifier.Connect

21、each speaker to thecorresponding speaker terminals on your receiver or amplifier.Make sure that you haveconfigured your surroundsound processor for “Sub-woofer On.” Also configureyour receiver for 5.1-channeloperation, as appropriate.The front left, front right,center and surround speakersshould all

22、 be set to “Small.”If your receiver allows you toset the crossover frequencybetween the subwoofer andthe main speakers, select100Hz or the setting that is theclosest frequency below it.DOLBYDIGITAL OR DTS(OR OTHER DIGITAL SURROUND MODE) CONNECTIONLINE?LEVEL?INLFELRLFE OUTSUBWOOFERRECEIVERDOLBY PRO L

23、OGIC (NON-DIGITAL) SPEAKER LEVELUse this installation method for Dolby Pro Logic applica-tions (not Dolby Digital, DTSor other digital processing),where the receiver/processordoes not have a subwooferoutput, or a volume-controlledpreamp (line-) level output:Connect your receiver oramplifiers front l

24、eft and rightspeaker terminals to the leftand right terminals on the subwoofer that are marked“Speaker Level In.” Connectthe left and right terminals on the subwoofer that aremarked “Speaker Level Out”to the corresponding termi-nals on the back of your frontleft and right speakers. Connect your rece

25、iver oramplifiers center, surroundand surround back speakerterminals to the correspon-ding terminals on the back of your center and surroundspeakers. SUB500 (SCS500.5 Subwoofer) 5If there is no sound from anyof the speakers: Check that receiver/ampli-fier is on and a source isplaying. Check that the

26、 powered subwoofer is plugged in, and itsPower switch isswitched on (“” position). Check all wires and con-nections between receiver/amplifier and speakers.Make sure all wires are con-nected. Make sure none ofthe speaker wires arefrayed, cut or punctured, ortouching each other. Review proper operati

27、on ofyour receiver/amplifier.If there is no sound comingfrom one speaker: Check the “Balance” controlon your receiver/amplifier. Check all wires and con-nections between receiver/amplifier and speakers.Make sure all wires are con-nected. Make sure none ofthe speaker wires arefrayed, cut or punctured

28、, ortouching each other. In Dolby Digital or DTSmodes, make sure that thereceiver/processor is config-ured so that the speaker inquestion is enabled. Turn off all electronics and switch the speaker inquestion with one of theother speakers that areworking correctly. Turneverything back on, anddetermi

29、ne whether the problem has followed thespeaker, or has remained in the same channel. If theproblem is in the samechannel, the source of theproblem is most likely withyour receiver or amplifier,and you should consult theowners manual for thatproduct for further informa-tion. If the problem has fol-lo

30、wed the speaker, consultyour dealer for further assis-tance or, if that is not possi-ble, visit .If there is no sound from thecenter speaker: Check all wires and con-nections between receiver/amplifier and speaker. Makesure all wires are connected.Make sure none of thespeaker wires are frayed,cut or

31、 punctured, or touch-ing each other. If your receiver/processoris set in Dolby Pro Logic mode,make sure the center speakeris not in phantom mode. If your receiver/processor is set in one of the DolbyDigital or DTS modes, makesure the receiver/processor is configured so that thecenter speaker is enab

32、led.If the system plays at lowvolumes but shuts off as volume is increased: Check all wires and con-nections between receiver/amplifier and speakers.Make sure all wires are con-nected. Make sure none ofthe speaker wires arefrayed, cut or punctured, ortouching each other. If more than one pair ofmain

33、 speakers is being used,check the minimum imped-ance requirements of yourreceiver/amplifier.If there is low (or no) bassoutput: Make sure the connectionsto the left and right “SpeakerInputs” have the correct polarity (+ and ). Make sure the subwoofer is plugged into an activeelectrical outlet, and i

34、sturned on (Power switch in the “” position). In Dolby Digital or DTSmodes, make sure yourreceiver/processor is config-ured so that the subwooferand LFE output are enabled.If there is no sound from the surround speakers: Check all wires and con-nections between receiver/amplifier and speakers.Make s

35、ure all wires are con-nected. Make sure none ofthe speaker wires arefrayed, cut or punctured, ortouching each other. Review proper operation ofyour receiver/amplifier andits surround sound features. Make sure the movie or TV show you are watching is recorded in a surroundsound mode. If it is not,che

36、ck to see whether yourreceiver/amplifier has othersurround modes you may use.In Dolby Digital or DTSmodes, make sure yourreceiver/processor is config-ured so that the surroundspeakers are enabled. Review the operation ofyour DVD player and thejacket of your DVD to makesure that the DVD featuresthe d

37、esired Dolby Digital orDTS mode, and that youhave properly selected thatmode using both the DVDplayers menu and the DVDdiscs menu.TROUBLESHOOTINGOPERATIONMove the Master Power switch(marked “Power” ) to the “”(On) position to use the sub-woofer. The SUB500 subwooferwill automatically turn on or goin

38、to standby (sleep) modewhen left in the auto mode(“Auto/On” switch in the“Auto” position). When yourreceiver or amplifier is off, or isnot sending program materialto the subwoofer, the sub-woofer will be in standby mode(LED will be red). When thesubwoofer senses an audio sig-nal,it will automaticall

39、y turn on(LED will be green). If the sub-woofer does not sense a signalafter approximately 20 minutes,it will automatically go intostandby mode.When the “Auto/On” switch is switched to the “On” posi-tion, the subwoofer will remainon, whether or not programmaterial is playing.If you will be away from

40、 homefor an extended period of time,or if the subwoofer will not beused, switch the Master Powerswitch to the Off position.VOLUMERISK OF ELECTRIC SHO CK DO NO T OPENCAUTI O NRISK OF ELECTRIC SHO CK DO NO T OPENCAUTI O NRISK OF ELECTRIC SHO CK DO NO T OPENVolume may be adjustedusing the Subwoofer Lev

41、elcontrol as shown. SUB500 (SCS500.5 Subwoofer) 6 SUB500 TEST PROCEDURE SYSTEM AURAL SWEEP TEST Equipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function (UUT = Unit Under Test) Auto-On switch either position 1) From the signal g

42、enerator, Connect both right and left line level inputs (RCA) to signal generator and UUT. Use Y-cable if necessary from mono source. Do not use the LFE jack. 2) On the front of the unit, turn the LEVEL control full counterclockwise (MIN). 3) Turn on generator, adjust to 100mV, 50 Hz. 4) Plug in UUT

43、; turn the power switch ON. Turn LEVEL control full clockwise (MAX) 5) LED should now be Green; immediate bass response should be heard and felt from port tube opening. 6) Turn off generator, turn LEVEL control fully counterclockwise (MIN), disconnect RCA cable. 7) Connect one pair of speaker cables

44、 to one pair Speaker Level input terminals on UUT. Cables should be connected to an integrated amplifier fed by the signal generator. 8) Turn on generator and adjust so that speaker level input at the amplifier is 2.0V, 50 Hz. 9) Turn LEVEL control full clockwise (MAX) 10) Green LED should light, im

45、mediate bass response should be heard and felt from the port tube opening. Sweep Function 1) Follow steps 7-10 above, using a sweep generator as a signal source. 2) Sweep generator from 20Hz to 1kHz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or any other noises. If any unusua

46、l noises are heard, remove woofer and test. Driver Function (Woofer) 1) Remove woofer from cabinet; detach + and - wire clips. 2) Check DC resistance of woofer; it should be 3.4 ohms10%. 3) Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier fe

47、d by a signal generator. Turn on generator and adjust so that speaker level output is 5.0V. 4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises. SUB500 (SCS500.5 Subwoofer) 7SUB500 AmplifierNot For SaleSUB500 CabinetNot For Sale10 Woofer DCR=3.425

48、MF12DZB-DW01-ERubber Foot Base (4)321-RUB-00009-EFoot Screw (4)352-HM04030D500-EMain Body Plastic Foot (4)321-ABS-00008-EPort Tube249-ABS-00175-EWoofer & Amplifier Screw (15)352-AM04020D210-EExploded ViewSUB5008 SUB500 (SCS500.5 Subwoofer) SUB500 (SCS500.5 Subwoofer) 9 SUB500 (SCS500.5 Subwoofer) 10

49、 SUB500 (SCS500.5 Subwoofer) 11SUB500 120v Electrical parts List Part NumberDescriptionQtyReference DesignatorInput/Main PCBsResistors110-14103j26resistor 10K 1/4W 5% CF 26mm 3R503,504,10110-14222j26resistor 2.2K 1/4W 5% CF 26mm 1R511110-14432j26resistor 4.3K 1/4W 5% CF 26mm 1R506110-14472j26resisto

50、r 4.7K 1/4W 5% CF 26mm 1R505110-16102j26resistor 1K 1/6W 5% CF 26mm 5R153,213,214,215,254110-16103j26resistor 10K 1/6W 5% CF 26mm 28R128,13,0149,150,209,212,216,217,220,221,222,225,226, 227,228,229,230,232,240,248,260,305,306,308,311,314, 319,325110-16104j26resistor 100K 1/6W 5% CF 26mm 6R122,126,23