JBL-TSSSUB4000-sub-sm 维修电路原理图.pdf

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1、 TSS-SUB4000 TSS-SUB4000 SERVICE MANUAL Infinity Systems Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 10/2005 RadioFans.CN 收音机爱 好者资料库 CONTENTS BASIC SPECIFICATIONS . . . . . . . . . .1 DETAILED SPECIFICATIONS . . . . . . . . . . . .2 CONTROLS. . . . . . . . . . . .4 CONNECTIONS

2、. . . . . . . . . . . . . . . 5 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 EXPLODED VIEWS-MECHANICAL PARTS LIST. . . . . . . . . .7 TEST SET-UP & PROCEDURE. . . . . . .9 BLOCK DIAGRAM. . . . . . . 10 TROUBLESHOOTING FLOW CHART.11 SERVICE NOTE - POWER TRANSFORMER.

3、12 ELECTRICAL PARTS LIST .13 PCB DRAWINGS. . . . .17 IC TRANSISTOR PINOUTS . . . . . . . . . . . . . 20 SCHEMATIC DIAGRAMS (120v). . . . .21 PACKAGING. . . . . . . . . . . 31 SPECIFICATIONS Frequency Response 28Hz 150Hz (3dB) 24Hz 180Hz (6dB) Maximum Amplifier Output 400 watts RMS (20Hz 150Hz with n

4、o more than 0.1% THD) Crossover Frequency 150Hz, 12dB/octave Driver 12 (305mm) MMD Dimensions (H x W x D) 17-1/2 x 17-1/4 x 11-1/8 (445mm x 438mm x 283mm) Weight 48 lb (21.8kg) Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and co

5、nstruction details in this and related Infinity publications are therefore subject to change without notice. TSS-SUB4000 TSS-SUB4000 RadioFans.CN 收音机爱 好者资料库TSS-4000 subwoofer 300W Powered Sub/ Plate Amp LINE VOLTAGEYes/NoHi/Lo LineNom.UnitNotesUS 120vac/60HzYes108-132120VrmsNormal OperationEU 230vac

6、/50-60HzNo207-264230VrmsNormal operation, MOMS required Asia 100vac/50HzNo90-110100VrmsNormal OperationParameterSpecificationUnitQA Test LimitsConditionsNotesAmp SectionType (Class AB, D, other)D-Load Impedance (speaker)4 OhmsNominalZ-curve requiredRated Output Power300 WattsRegulated 120 V line5% t

7、ollerance appliesTHD Rated Power1 %22k filter, 50Hz300W +/- 5%THD 1 Watt0.5 %22k filter, 50HzDC OffsetundefinedmV-DC 15measured at 50 HzInput SensitivityLine/Hi Level Input PhaseN/ALine Input370 mV mVrms300 W 50Hz1 input drivenSpeaker/Hi Level InputN/ASignal to NoiseSNR-A-Weighted100 dBArelative to

8、rated powerA-Weighting filterSNR-unweighted70 dBrrelative to rated power22k filterSNR rel. 1W-unweighted60 dBrrelative to 1W Output22k filterResidual Noise Floor2 mVrmsVolume max, using RMS reading DMM/VOM (or A/P)Residual Noise Floor1mVrms(max)Volume max, w/ A/P Swept Bandpass Measurement (Line fre

9、q.+ harmonics)Input ImpedanceLine Input10 k ohmsNominalSpeaker/Hi Level InputN/AActive FiltersLow Pass (fixed or variable)FIXXED-Frequency130 HzSlope24 dB/OctaveQButterworth -Subsonic filter (HPF)fixed-Frequency35 HzSlope12 dB/OctaveQ1.2 -Line Out Filter (HPF)NONE-Frequency HzSlope dB/OctaveQ -Frien

10、d CircuitFIXXED-Frequency66 Hz Hznotch filterSlope6 dB/OctaveQ1.2 -Video BoostNONE-Boost dBRange HzSpecial filterRABOS-SwitchesMain Power ON/OFFYES-Typerocker-Located on amp plateTV-5Rabos ON/OFFYES-Typemini togle-Located on amp platePolarity SwitchYES-Off: 0; On: 180Typemini togle -Located on amp p

11、lateLimiter (yes/no)YEScompressor and limiterTSS-SUB4000 TSS-SUB4000 2ParameterSpecificationUnitQA Test LimitsConditionsNotesTHD at Max. Output Powerless than 10 %Maximum Output PowerMaximum THD as a result of limiting.Output Volume ControlVolume Control PotYES- mounted on amp panelDetent (center/#)

12、NO-Taper (lin/log)log A taoer- minimum settingno outputInput/Output PhaseLine Input vs. Hi InputN/A Lo/Hi Input vs. Lo/Hi OutputN/A Input/Output Line In (L,C,R,AC3,Mono)Stereo-RCA phono jack, gold platedLFE InYES-Shared with R Line In jackSignal Sensing (ATO)Auto-Turn-On (yes/no)YES-ATO Input Test F

13、requency100 HzATO Input Threshold2 mVtyp.LPF On, BOS OffATO Low Pass cutoff400 Hz450ATO-LPF for noise immunityLPF On, BOS OffATO Turn-on time1 ms10Amp connected and AC on, then input signal applied ( 1 W output )Auto Mute / Turn-OFF Time10 minutes 5 t 15Time before muting, after signal is removedPow

14、er on FeaturesPower on Delay timegreater than 2sec.AC Power AppliedPower on LEDYES-Bi-color LED located on front of cabinetNormal On/Offgreen / redcolorATO mode onlyATO-colorActive: green; Standby: redTransients/PopsATO Transient5 mV-peak Speaker OutputTurn-on Transient30 mV-peak Speaker OutputAC Li

15、ne cycled from OFF to ONTurn-off Transient30 mV-peak Speaker OutputAC Line cycled from ON to OFFEfficiencyStand-by Input Power10 Wattstyp. nom. line voltageAC Power Cons.1W12 Wattstyp. nom. line voltagePower Cons.rated power473 Wattstyp. nom. line voltageInput power measured is REAL Watts, not VAEff

16、iciency63 %typ. nom. line voltageProtectionShort Circuit Protection YES-Direct short at outputThermal Protection YES- threshold 65 deg. C at panelDC Offset ProtectionYES-DC present at Speaker Out leadsRelay for driver/fire protectionLine Fuse Rating ( 120 V )3.15 AmpsType ADL or MDL Fuse holder on i

17、nside surface of amp panelAC Power & TransformerPower cord length9 feetDouble insulated cord, AWG#18TSS-SUB4000 TSS-SUB4000 3TSS-SUB4000Rear PanelCONTROLS ANDCONNECTIONSSubwoofer Level (Volume) ControlLine-Level InputsNormal/LFE Low-Pass SelectorPhase SwitchPower SwitchRoom Adaptive Bass Optimizatio

18、n System Controls (see page 5)R.A.B.O.S.SelectorR.A.B.O.S.Level AdjustmentR.A.B.O.S.Bandwidth AdjustmentR.A.B.O.S.Center-Frequency AdjustmentTSS-SUB4000 TSS-SUB4000 4TSS-SUB4000CONNECTIONSIf you have a Dolby* Digital or DTSreceiver/processorwith a low-frequency-effects (LFE) output: Set Low-Pass Swi

19、tch to Off.NOTE:In this case,you do not need to use a Y connector.Simplyconnect the LFE output on your receiver/processor to either the left or right input on the subwoofer.If your receiver/processor has subwoofer outputs for the left and right channels: Set Low-Pass Switch to On.NOTE:Some receivers

20、 have a single subwoofer output (do not confusethis with a single LFE output as described to the left).In that case,it is recommended that you use a Y connector (not included) to maximizeperformance.TSS-SUB4000 TSS-SUB4000 5Power OnPlug your subwoofersAC cord into a wall outlet.Do not use theoutlets

21、 on the back of the receiver.Initially set the Subwoofer Level (Volume) Control to the “min”position.Turn on your sub by pressing the Power Switch on the rear panel.Auto On/StandbyWith the Power Switch in the ON position,the PowerIndicator LED on the front of the subwoofer will remain backlit inred

22、or green to indicate the On/Standby mode of the subwoofer.RED = STANDBY (No signal detected,Amp Off)GREEN = ON (Signal detected,Amp On)The subwoofer will automatically enter the Standby mode afterapproximately 10 minutes when no signal is detected from yoursystem.The subwoofer will then power ON ins

23、tantly when asignal is detected.During periods of normal use,the PowerSwitch can be left on.You may turn off the Power Switch for extended periods of nonoperation,e.g.,when you are away on vacation.Adjust GainTurn on your entire audio system and start a CD or movie soundtrack at a moderate level.Tur

24、n up the Subwoofer Level(Volume) Control about halfway.If no sound emanates fromthe subwoofer,check the AC-line cord and input cables. Are theconnectors on the cables making proper contact? Is the AC plug connected to a “live”receptacle? Has the Power Switch been pressed to the “On”position? Once yo

25、u have confirmed thatthe subwoofer is active,proceed by playing a CD,record orcassette.Use a selection that has ample bass information.Set the overall volume control of the preamplifier or stereo to acomfortable level. Adjust the Subwoofer Level (Volume) Control until you obtain a pleasing blend of

26、bass.Bass response shouldnot overpower the room but rather should be adjusted so there is a harmonious blend across the entire musical range.Manyusers have a tendency to set the subwoofer volume too loud,adhering to the belief that a subwoofer is there to produce lotsof bass.This is not entirely tru

27、e.A subwoofer is there to enhancebass,extending the response of the entire system so the basscan be felt as well as heard.However,overall balance must be maintained or the music will not sound natural.Anexperienced listener will set the volume of the subwoofer so its impact on bass response is alway

28、s there but never obtrusive.OPERATIONLow-Pass SelectorIf you have a Dolby Digital or DTS processor/receiver,theCrossover Frequency is set by the processor/receiver.Consultyour owners manual to learn how to view or change this setting.In this case,the Low-Pass Selector should be set to “Off” .We stro

29、ngly recommend this setup method.When this switch is in the “On”position,the subwoofer willreproduce frequencies below 150Hz.Phase ControlThe Phase Switch determines whether the subwooferspeakers piston-like action moves in and out with the mainspeakers,0,or opposite the main speakers,180.Proper pha

30、seadjustment depends on several variables such as room size,subwoofer placement and listener position.Adjust the phaseswitch to maximize bass output at the listening position. TSS-SUB4000 TSS-SUB4000 6 Ref # Description Part Number Qty 1 Grille 329-120-05097-0VA 1 2 Woofer/Trim Ring Screw 351-AM0403

31、0A893 8 3 Trim Ring 213-120-05033-0BA 1 4 Woofer 12 (305mm) MMD 30PR14BW-DW01 1 5 Port Tube 249-HIPS-05021-0VA 1 6 TSS-SUB4000 Amplifier Not for Sale 1 7 Amplifier Screw 352-FM04020D605 12 8 TSS-SUB4000 Cabinet Not for Sale 1 9 Rubber Foot 320-RUB-05030-0BA 4 10 Foot Screw 352-CM04025D604 4 11 Gaske

32、t 333-EVA-05091-0WA 1 12 LED 166-A055A8GX 1 13 Plastic Plate Not Serviceable 1 14 Aluminum Plate Not Serviceable 1 Not Shown Power Transformer 150-R1107008 1 TSS-SUB4000 EXPLODED VIEWTSS-SUB4000 TSS-SUB4000 7 Ref # Description Part Number Qty 1 Screw 352-CM03530D926 11 2 Damping 1 3 Main Mounting Bo

33、lt 1 4 Tube Gasket 2 5 Rubber 398-RUB-05093 1 6 Gasket 2 7 Rubber Gasket 336-RUB-05013 1 8 Damping 1 9 Power Transformer 150-R1107008 1 10 Nut 1 11 Damping 1 8TSS-SUB4000 TSS-SUB4000 TSS-SUB4000 Test Set Up and Procedure SYSTEM AURAL SWEEP TEST Equipment needed: Function/signal generator/sweep gener

34、ator Multimeter RCA cables General Unit Function (UUT = Unit Under Test) Switches/knobs on the amplifier faceplate: Phase switch either position Low Pass switch Off RABOS switch Off 1. From the signal generator, Connect both right and left line level inputs (RCA jacks) to signal generator and UUT. U

35、se Y-cable if necessary from mono source. 2. On the amplifier, turn the LEVEL control full Counterclockwise (Min). 3. Turn on generator, adjust to 125mV, 50 Hz. 4. Plug in UUT; turn the power switch ON. Turn LEVEL control full Clockwise (Max). 5. LED (on front panel) should now be Green; immediate b

36、ass response should be heard and felt from rear port tube opening. Sweep Function 1. Follow steps 1-5 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 unusual noises

37、are heard, remove woofer and test. Driver Function (Woofer) 1. Remove woofer from cabinet (follow steps on exploded view page); detach + and - wire clips. 2. Check DC resistance of woofer; it should be 3.5 ohms10%. 3. Connect a pair of speaker cables to driver terminals. Cables should be connected t

38、o an integrated amplifier fed 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. TSS-SUB4000 TSS-SUB4000 9TSS-SUB4000 TSS-SUB4000 10 TSS-Sub4000 Testing Fl

39、ow Chart yes no no yes yes no yes no yes no yes no yes no yes no no yes yes no Start Dc voltage check Vcc,15V OK Check transformer C168,C169,D123, D124,C170 Power on check LED red &blue OK Check vol module & connector cable& 15V.ect Check THD output power, noise OK Check pre board & power board , Vc

40、c,15V ect Test frequency Response OK Check U102,R124, C104,R125,C117.ect Test input sensitivity OK Check U101,R117, R112,R114 ect Test protection OKCheck U107.R237 15Vcc ect Test limiter circuit OKCheck U106.Q107ectAuto off Function Hi pot test OKCheck U103.Q101. Q102.C131.R142;Ac cord, Transformer.

41、 OKListening test OKThe Amp assy ok END Test phase sw,low pass sw rabos vr Check sw103,102, R158,163,177 ect TSS-SUB4000 TSS-SUB4000 11NOTICE The main power transformer (toroid) part# 150-r1107008 in the TSS-SUB4000 is not mounted in the amplifier inside the amp cover, but mounted in the cabinet in

42、a separate location. Replacement: To replace the power transformer, it is necessary to remove the woofer from the cabinet. The mounting bolt and transformer itself is mounted on an internal brace; both are accessible through the woofer opening. Instructions for woofer removal can be found on the exp

43、loded view, page 7. Troubleshooting: To keep the circuit “live” while exposing the amplifier components, the amplifier cannot completely be removed and powered up outside the cabinet due to the power connections to the externally mounted transformer. Instead, an alternate method is to leave the amp

44、cover in place and remove the four Phillips screws holding the amp assy to the amp cover. Then the amplifier can be partially removed for access, while maintaining the power connections. Unplugging the LED connection (red/black wires) at the PCB plug will allow the amp to be removed even further. 12

45、TSS-SUB4000 TSS-SUB4000 TSS-SUB4000 120V Electrical Parts ListPart NumberDescriptionQtyReference DesignatorMAIN PCBResistors110-12621j15Resistor 6201/2W 5% 15mm1R238110-16102j26Resistor 1K 1/6W 5% CF 26mm 3R210,R239,R264110-16103j26Resistor 10K 1/6W 5% CF 26mm 9R227,229,230,231,232,233,260,261,26311

46、0-16153j26Resistor 15K 1/6W 5% CF 26mm 2R247,R249110-16182j26Resistor 1.8K 1/6W 5% CF 26mm 1R248110-16222j26Resistor 2.2K 1/6W 5% CF 26mm 2R242,R245110-16223j26Resistor 22K 1/6W 5% CF 26mm 3R218,R220,R223110-16274j26Resistor 270K 1/6W 5% CF 26mm 1R240110-16333j26Resistor 33K 1/6W 5% CF 26mm 1R211110

47、-16391j26Resistor 3901/6W CF 26mm 2R243,R246110-16432j26Resistor 4.3K 1/6W 5% CF 26mm 1R254110-16472j26Resistor 4.7K 1/6W 5% CF 26mm 4R217,219,222,213110-16473j26Resistor 47K 1/6W 5% CF 26mm 1R221110-16683j26Resistor 68K 1/6W 5% CF 26mm 1R212122-14101j26fusible Resistor 1/4W 100ohm 5%2R241,R244116-1

48、41r00j26xmetal film Resistor 1.001/4W 5% MO 26mm 2R256,R255116-161001f26metal film Resistor 1K 1/6W 1% MF 26mm 2R252,R253116-161002f26metal film Resistor 10K 1/6W 1% MF 26mm 2R234,R235116-161022f26metal film Resistor 10.2K 1/6W MF 26mm 1R251116-161301f26metal film Resistor 1.30K 1/6W MF 26mm 3R226,R

49、228,R236116-161822f26metal film Resistor 18.2K 1/6W 1% MF 26mm 1R214116-162001f26metal film Resistor 2.00K 1/6W 1% MF 26mm 1R215116-162492f26metal film Resistor 24.9K 1/6W 1% MF 26mm 2R257,R258116-164320f26metal film Resistor 432 1/6W 1% MF 26mm 1R265116-166813f26metal film Resistor 681K 1/6W 1% MF

50、26mm 1R262110-20152j20Resistor 1.5K 2W 5% CF 20mm KINK1R208113-500r1j10cement Resistor 0.15W 5%2R224,R225116-142003f26metal film Resistor 200K 1/4W 1% MF 26mm 1R209Capacitors130-2b102k503disc Capacitor 1000P 50V 10% 1C165130-3f104z503disc Capacitor 0.1U 50V +80/-20% 2C163,C164130-ch101j503disc Capac