Infinity-TSS1200-sub-sm 维修电路原理图.pdf

TSS-Sub1200 TSS-Sub1200 (TSS-1200 SYSTEM) SERVICE MANUAL Infinity Systems Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 12/2006 RadioFans.CN 收音机爱 好者资料库 Note: The TSS-Sub1200 is part of the TSS-1200 system Satellite loudspeakers: (Charcoal) order Infinity part# TSS-SAT1200CHR (Platinum) order Infinity part# TSS-SAT1200PLT Center channel: (Charcoal) order Infinity part# TSS1200CHR CEN (Platinum) order Infinity part# TSS1200PLT CEN CONTENTS BASIC SPECIFICATIONS . . . . . . . . . . . . . . . . 1 DETAILED SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 PACKAGING/ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . 4 CONTROLS. . . . . 5 CONNECTIONS . . . . . . . . . . . . . . . 6 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 EXPLODED VIEW-MECHANICAL PARTS LIST. . .8 TEST SET-UP/PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . . 9 BLOCK DIAGRAM. . . . . . . . . . . 10 PCB DRAWINGS. . . . . . . . . . . . . . . . . . . . . 11 ELECTRICAL PARTS LIST . .13 IC TRANSISTOR PINOUTS . . . . . . . . . . . . . 16 SCHEMATIC DIAGRAMS . . . . .17 TSS-Sub1200 Specifications Frequency Range: 29Hz 150Hz (3dB) Amplifier Output: 250 Watts RMS; 500 Watts peak Low-Frequency Driver: 12 (305mm) Crossover Frequency: 50Hz 150Hz, 24dB/Octave, continuously variable Dimensions (H x W x D): 18-1/2 x 12-3/4 x 18-1/2 (470mm x 324mm x 470mm) Weight: 44 lb (20kg) Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details in this and related Infinity publications are therefore subject to change without notice. TSS-Sub1200 subwoofer RadioFans.CN 收音机爱 好者资料库INFINITY TSS-1200 250W Powered Sub/ Plate Amp LINE VOLTAGEYes/NoHi/Lo LineNom.UnitNotesUS 120vac/60HzYes108-132120VrmsNormal OperationEU 230vac/50-60HzYes207-264230VrmsNormal operation, MOMS requiredParameterSpecificationUnitQA Test LimitsConditionsNotesAmp SectionType (Class AB, D, other)Dn/an/aLoad Impedance (speaker)5.6Ohmsn/aNominalRated Output Power (120VAC150Watts125Domestic version only 120 VAC-60 HzRated Output Power (230VAC150Watts125EU Version only 230 VAC-50 HzAVG RMS Dynamic Power250Watts2255.6 Ohms Average RMS power, 3/20 Cycles 50 Hz, Driven 6dB above its input sensitivity sensitivityAVG RMS Dynamic Power250Watts1894 Ohms ReferenceTHD Rated Power0.5%122K filterTHD 1 Watt0.1%0.322K filterDC Offset10mV-DC30Amplifier outputDamping factor50DF20Measured at amplifier board Measured at the amplifier board. 120 Watts 50 Hz, THD must be less tan 0.1%Input SensitivityInput Frequency35Hz35Nominal Freq.L or R input16.8mVrms2dBTo 1 Watt, Ap Zo=600 OhmsSingle input driven, Normal modeL or R input16.8mVrms2dBTo 1 Watt , Ap Zo=600 OhmsSingle input driven, LFE mode switch ONGain L & R1402dB43 dBReference Signal to NoiseSNR-A-Weighted90dBA85relative to rated powerA-Weighting filterSNR-unweighted85dBr85relative to rated power22K filterSNR rel. 1W-unweighted65dBr65relative to 1W Output22K filterResidual Noise Floor1mVrms(max)1.5Volume max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics) (BW=20 Khz)Line level inputs must be terminated using 1KOHMInput ImpedanceLine Input (L, R) 10Kohmsn/aNominalFiltersLP filter 4th order 50-150Hz 102nd Order variable and 2nd order fixSee AP curves 2nd order variable + 2nd order fix-24 db/OctaveHP Filter 2nd orderFixedLFE Low pass 2nd order200LP T 18 MinutesPower on Delay time3sec.4AC Power AppliedTransients/PopsATO Transient5mV-peakn/a Speaker Output TSS-Sub1200 subwoofer 2ParameterSpecificationUnitQA Test LimitsConditionsNotesTurn-on Transient50mV-peak2V-pk-pk Speaker OutputAC Line cycled from OFF to ONTurn-off Transient50mV-peak2V-pk-pk Speaker OutputAC Line cycled from ON to OFFEfficiencyEfficiency67%65Nominal Line voltage 120 VACStand-by Input Power20Watts22 nom. line voltageMaximum allowable input power under nominal Input voltage and frequency, HOT or COLD operation.Power Cons. rated power185Watts187 nom. line voltage125 Watts into 5.6 Ohms nominal line voltageProtectionsShort Circuit Protection YESfunctional Direct short at outputAmplifier should resume operation after short circuit condition removal Thermal Protection YESfunctional1/8 max unclipped Power at 1.06 times the input voltageTemperature rise in accessible metal parts should not exceed 35K rise for domestic version or 30K rise for European versions (refer to requirements sheet).DC Offset ProtectionYES-DC present at Speaker Out leadsDesign must insure no Offset at the speaker output under any operating condition including abnormal operationLine Fuse RatingUSA-Domestic 2Amps2Type-T or Slo Blo-250 VInternal fuse with UL/SEMKO rated holderEU1.25Amps1.25Type-T or Slo Blo-250 V, Low Breaking capacityInternal fuse with UL/SEMKO rated holder TSS-Sub1200 subwoofer 3 TSS-Sub1200 subwoofer 4SUBWOOFERCONTROLSRear PanelCROSSOVERFREQUENCYLEVELLINE LEVEL INPHASEMinMaxLRFor LFE use L or RLFENORMALPOWER50Hz80Hz0180150HzCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENONOFFNRTL/CCSA22.2UL1492WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.AVERTISSEMENT: POUR PRVENIR LES RISQUES DINCENDIE OUDE CHOC LECTRIQUE, VITER DEXPOSER CET APPAREIL A LA PLUIE OU A LHUMIDIT.A Few SuggestionsWe recommend that you do not operate your speakers orsubwoofer with the bass,treble and loudness controls set to full boost.This will place undue strain on your electronics andspeakers and could damage them.The volume control setting on your processor/preamp or receiveris not a specific indication of the overall loudness level of thespeakers.The only important consideration is the loudness level atwhich the system can be played,regardless of where the volumecontrol is set.Always turn down the volume control setting on your processor/preamp or receiver when changing a cassette or CD,or switchinginputs to AM or FM operation.Excessively loud transients (clicks orpopping sounds) can damage the satellite speakers and possiblythe subwoofer.Important!Whenever changing cables,pulling plugs,etc.,ALWAYS TURN OFFALL EQUIPMENT,including the subwoofer.1Subwoofer-Level Control 2LFE/Normal Switch3Phase Switch4Crossover-Frequency Control 5Line-Level (LFE) Inputs6Power SwitchTSS-1200 (120V) OM 7/18/06 9:02 AM Page 10 TSS-Sub1200 subwoofer 5SUBWOOFERCONNECTIONSIf your receiver/processor does not contain a Dolby Digital or DTS processor but has asubwoofer output:Set line-level/LFE switch to “Normal.”N NO OT TE E:If your receiver/processor has only one sub out,you may use either the L or R input.If you have a DolbyDigital or DTSreceiver/processor with a low-frequency-effects (LFE) or subwoofer output:CROSSOVERFREQUENCYLEVELLINE LEVEL INPHASEMinMaxL RFor LFE use L or RLFE NORMALPOWER50Hz80Hz0180150HzCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENONOFFNRTL/CCSA22.2UL1492WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.AVERTISSEMENT: POUR PRVENIR LES RISQUES DINCENDIE OUDE CHOC LECTRIQUE, VITER DEXPOSER CET APPAREIL A LA PLUIE OU A LHUMIDIT.SUBWOOFER ORLFE OUTPUTSet line-level/LFE switch to “LFE.”CROSSOVERFREQUENCYLEVELLINE LEVEL INPHASEMinMaxL RFor LFE use L or RLFE NORMALPOWER50Hz80Hz0180150HzCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENONOFFNRTL/CCSA22.2UL1492WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.AVERTISSEMENT: POUR PRVENIR LES RISQUES DINCENDIE OUDE CHOC LECTRIQUE, VITER DEXPOSER CET APPAREIL A LA PLUIE OU A LHUMIDIT.15subwoofercableincluded15 subwoofercable includedTSS-1200 (120V) OM 7/18/06 9:02 AM Page 11 TSS-Sub1200 subwoofer 6OPERATIONSurround ModesWhen using the system in a Dolby Digital or DTS home theatersystem,make sure all speakers are set to “Small” . When using theTSS-1200 in a Dolby Pro Logichome theater system,make surethe receivers center channel mode is set to “Normal.”Some Dolby Digital-equipped receivers/processors offer differentsetup options for each source or surround mode (e.g.,CD-stereo,videotape,Dolby,Pro Logic).In each case,follow your equipmentsinstructions to ensure that the subwoofer output is turned on andthat the speakers are set to “Small”in each mode.Power OnPlug your subwoofersAC cord into a wall outlet.Do not use theoutlets on the back of the receiver.Initially set the Subwoofer-Level Control 1to the“Min”position.Turn on the subwoofer by pressing the Power Switch 6 on the rear panel.Turn on your entire audio system and start a CD or movie sound-track at a moderate level.Auto On/Stand-ByThe subwoofer will automatically enter the Stand-By mode afterapproximately 10 minutes when no signal is detected from yoursystem.The subwoofer will then power on instantly when a signalis detected.During periods of normal use,the Power Switch 6can be left on.You may turn off the Power Switch 6for extendedperiods of nonoperation,e.g.,when you are away on vacation.Adjust LevelTurn the Subwoofer-Level Control 1up about halfway.If nosound emanates from the subwoofer,check the AC-line cord andinput cables.Are the connectors on the cables making propercontact? Is the AC plug connected to a “live”receptacle? Has thePower Switch 6been pressed to the “On”position? Once youhave confirmed that the subwoofer is active,proceed by playing a CD or DVD.Use a selection that has ample bass information.Set the overall volume control of the receiver/processor to acomfortable level.Adjust the Subwoofer-Level Control 1until you obtain a pleasing blend of bass.Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range.Many users have a tendency to set the subwoofer volume too loud,adhering to the belief that a subwoofer is there to produce lots of bass.This is not entirely true.A subwoofer is there to enhancebass,extending the response of the entire system so the bass can be felt as well as heard.However,overall balance must be maintained or the music will not sound natural.An experiencedlistener will set the volume of the subwoofer so its impact onbass response is always there but never obtrusive.Crossover AdjustmentThe Crossover-Frequency Control 4 determines the highestfrequency at which the subwoofer reproduces sounds.For the TSS-1200,it is recommended that this control be set at 120Hz(approximately the 3 oclock position).NOTE: This control will have no effect if the LFE/Normal Switch2 is set to “LFE.”If you have a Dolby Digital or DTS receiver/processor,the low-pass frequency is set by the receiver/processor.Set the LFE/Normal Switch 2 on the subwoofer to“LFE.”Consult your owners manual to learn how to view orchange this setting.A setting of 120Hz 150Hz is recommended.Phase ControlThe Phase Switch 3 determines whether the subwooferspeakers piston-like action moves in and out with the mainspeakers,0,or opposite the main speakers,180.Proper phaseadjustment depends on several variables such as room size,subwoofer placement and listener position.Adjust the PhaseSwitch 3 to maximize bass output at the listening position.Final PositioningAfter correctly connecting the TSS-1200 system and verifyingthat both the subwoofer and all satellite speakers are playing,itis time to optimize the system for your particular listening room.Earlier,you placed the subwoofer in its general location.Findingthe exact location for optimum performance sometimes onlyinvolves moving the speakers up to a few inches in any direction.We urge you,therefore,to experiment with placement,if possible,until your speakers deliver their full potential.TSS-1200 OM-no LED 9/27/06 2:03 PM Page 12 TSS-Sub1200 subwoofer 7 TSS-Sub1200 subwoofer 8 TSS1200 sub Test Set Up and Procedure SYSTEM AURAL SWEEP TEST Equipment needed: Function/signal generator/sweep generator Multimeter RCA cable General Unit Function (UUT = Unit Under Test) Switches/knobs on the amplifier faceplate: Crossover Frequency Adjust full CW (150Hz) Phase switch either position Normal/LFE switch - Normal 1. From the signal generator, Connect one RCA cable to either right or left line level input (RCA jack) to signal generator and UUT. 2. On the amplifier, turn the LEVEL control full Counterclockwise (Min). 3. Turn on generator, adjust to 150mV, 50 Hz. 4. Plug in UUT; turn the power switch ON. Turn LEVEL control full Clockwise (Max). 5. Immediate bass response should be heard and felt from bottom 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 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 3.4 ohms10%. 3. Connect a pair of speaker cables to driver terminals. Cables should be connected to 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-Sub1200 subwoofer 9 TSS SUB1200 BLOCK DIAGRAMNOTE THIS LED IS NOT PRESENT ON EARLY VERSIONS OF THE TSS SUB1200 TSS-Sub1200 subwoofer 10 TSS-Sub1200 Subwoofer 11 TSS-Sub1200 Subwoofer 12TSS-1200 120V ELECTRICAL PARTS LISTPart NumberQtyDescriptionReference DesignatorCapacitors 032-270393-300ZR 1GR Mylar cap. (ESK) 0u27/63V J (R) P:5 C29 034-100625-300ZS 1GS electrolytic cap. 100uF/25V M (R)6.3x11 P:5 C64 034-220525-301ZS 5GS Elect. Cap. 22uF/25V M (R)5x11 P:5 C4,9,41,50,53 034-330515-000ZS 1GS elctrolytic cap. 33uF/16V M (R)0511 P:5 C39 034-330525-300ZR 1GR electrolytic cap. 33uF/25V M (R)0511 P:5 C1 034-330615-300ZS 2GS Electrolytic cap. 330uF/16V M (R)0812 P:5 C12,78 034-470415-301ZS 1GS electrolytic cap. 4u7/50V M (R)0511 P:5 C2 034-470515-307ZR 1GR electro cap. LOW ESR 85ESR5 47uF/16V M C65 035-100393-301ZR 1GR Mylar cap. (ESK) 0u1/63V J P:5 ESK063S10JT C28, 035-220393-300ZR 1GR PE cap. 0u22/63V J P:5 C27, 038-100363-300ZR 2GR MPE cap. P:5 0u1/100V J C68,69 031-100144-103AZS 1GS SMD 0u001/50V K 0805 X7R C79 031-100184-100AZS 2GS SMD 0u01/250V K 0805 X7R C3,7 031-100244-100AZS 7GS SMD Ceramic cap. 0u01/50V K 0805 X7R C66,67,5,10C,33,45,51, 031-100343-100AZS 2GS SMD 100pF/50V J 0805 NPO C36,58 031-100344-100AZS 18GS SMD 0u1/50V K 0805 X7R C11,42-44,46-49,52,54,55,60,63, 71,74,77,81,82, 031-220243-103AZS 1GS SMD 0u022/50V J 0805 X7R C40 031-220344-300AZS 3GS SMD 220pF/50V K 0805 NPO C20,21,19 031-330444-300ZS 1GS SMD 3300pF/50V K 0805 X7R C34 031-470244-102AZS 2GS SMD 0u047/50V K 0805 X7R C62,59 031-470344-100AZS 1GS SMD 470pF/50V K 0805 X7R C80 031-560243-100AZS 2GS SMD 56pF/50V J 0805 NPO C57,61 031-820343-101AZS 1GS SMD 820pF/50V J 0805 NPO C56 032-820244-200ZR 1GR mylar cap. 0u082/100V K (R) C30 033-470464-270ZS 1GS NPE cap.1K 4u7/100V K10 (R)1015 GNE C73 033-680464-270ZS 1GS NPE ca