Infinity-TSS800-sub-sm 维修电路原理图.pdf

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1、 TSS-Sub800 TSS-Sub800 (TSS-800 SYSTEM) SERVICE MANUAL Infinity Systems Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 1/2008 RadioFans.CN 收音机爱 好者资料库 Note: The TSS-Sub800 is part of the TSS-800 system Satellite loudspeakers: (Charcoal) order Infinity part# TSS800CHR Sat-S-EP (Plat

2、inum) order Infinity part# TSS800PLT Sat-S-EP Center channel: (Charcoal) order Infinity part# TSS-800CHR CEN-E (Platinum) order Infinity part# TSS-800PLT CEN-E CONTENTS BASIC SPECIFICATIONS . . . . . . . . . . . . . . . . 1 PACKAGING/ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3、 DETAILED SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 CONTROLS. . . . . 5 CONNECTIONS . . . . . . . . . . . . . . . 6 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 EXPLODED VIEW-MECHANICAL PARTS LIST. . .8 TEST SET-UP/PROCEDURE. . . . . .

4、. . . . . . . . . . . . . . . . . . . . . 9 BLOCK DIAGRAM. . . . . . . . . . . 10 TROUBLESHOOTING FLOW CHART. . .12 PCB DRAWINGS. . . . . . . . . . . . . . . . . . . . . 13 ELECTRICAL PARTS LIST . .19 IC TRANSISTOR PINOUTS . . . . . . . . . . . . . 23 SCHEMATIC DIAGRAMS . . . . .24 TSS-Sub800 Specif

5、ications Frequency Range: 34Hz 150Hz (3dB) Amplifier Output: 150 watts RMS, 300 watts Peak Low-Frequency Driver: 10 (254mm) Crossover Frequency: 50Hz 150Hz, 24dB/Octave, continuously variable Dimensions (H x W x D): 15-3/4 x 14 x 15 (400mm x 356mm x 381mm) Weight: 34.6 lb (15.7kg) Infinity continual

6、ly 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-Sub800 RadioFans.CN 收音机爱 好者资料库 TSS-Sub800 PACKAGING2TSS-Sub800 100W Powered Sub/ P

7、late Amp LINE VOLTAGEYes/NoHi/Lo LineUnitNotesUS 120VAC/60HzYes108-132VrmsNormal OperationEurope 220-240VAC, 50-60HzYes220-230VrmsNormal OperationParameterSpecificationUnitQA Test LimitsConditionsNotesAmp SectionType (Class AB, D, other)AB ABn/a120V ModelExternal heatsink requiredType (Class AB, D,

8、other)G Gn/a230V ModelExternal heatsink requiredLoad Impedance (speaker)4 Ohmsn/aNominalRated Output Power100 Watts95Single input drivenTHD Rated Power0.5 %122K filterTHD 1 Watt0.1 %0.322K filterDC Offset10 mV-DC50 Speaker OutputDamping factor100 DF10050Hz-4 Ohms loadMeasured at amplifier board spea

9、ker output terminals, Output power 90 Watts.Input SensitivityInput Frequency50 Hz50Nominal Freq.Line Input (L&R)15.62 mVrms2dBTo 1 WattSingle input driven, AP Zo=600 OhmsLFE Input10.36 mVrms2dBTo 1 WattLFE input driven only, AP Zo=600 OhmsSignal to NoiseSNR-A-Weighted100 dBA85rel. to rated powerA-We

10、ighting filterSNR-unweighted80 dBr80rel. to rated power22K filterSNR 1W-unweighted60 dBr60rel. to 1W Output22K filterResidual Noise Floor1.5 mVrms2.5Volume max, using RMS reading DMM/VOM (or A/P)Residual Noise Floor1mVrms(max)2Volume max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics)Inpu

11、t ImpedanceLine input L&R , LFE10 K ohmsn/aNominalFiltersLow Pass (fixed or variable)4th order -2dB2nd order variable 50-150Hz + 2nd order fixSlope & QdB/Octaven/aSubsonic filter (HPF)2nd order fix Hz2dBSlope & QdB/Octaven/aLimiter (yes/no)YES-FunctionalTHD at Max. Output Power1%FunctionalFeaturesLF

12、E InputYESFunctional Phase Switch (yes/no)YES-Functional Volume pot Taper (lin/log)LOG-Functional ATOYESFunctional Input ConfigurationLine In (L,R)L ,R-Functional RCA inputs (L&R)Line level in LFELFEFunctional RCA single inputSignal Sensing (ATO)Auto-Turn-On (yes/no)YES-Functional ATO Input Frequenc

13、y50 HzFunctional ATO Level2 mVFunctional pdrivenATO Turn-on time5 msFunctional Amp connected and AC on, then input signal appliedAuto Mute/ Turn-OFF Time10 minutesFunctional T before muting, after signal is removedAuto turn of time (T) must be 5 T 15Power on Delay time3 sec.Functional AC Power Appli

14、edTransients/PopsATO Transient5 mV-peak10 Speaker OutputsTurn-on Transient50 mV-peak100 Speaker OutputsAC Line cycled from OFF to ONTurn-off Transient50 mV-peak100 Speaker OutputsAC Line cycled from ON to OFFEfficiencyStand-by Input Power14 Watts18 nom. line voltageMaximum allowable input power unde

15、r nominal Input voltage and frequency, HOT or COLD operation.Power Cons.rated power195 Watts210 nom. line voltage100 Watts 4 Ohms TSS-Sub800 3ParameterSpecificationUnitQA Test LimitsConditionsNotesProtectionShort Circuit Protection YES-Functional Direct short at outputThermal Protection 65 deg. C-Fu

16、nctional 1/8 max unclipped Power Temperature rise should not exceed 35K riseDC Offset ProtectionYES-Functional DC present at Speaker Out leadsRelay or crowbar (for driver/fire protection)Line Fuse RatingExternal fuse with UL/SEMKO rated holder120 VAC2.5 AmpsType-T or Slo Blo, Fuse markings T2.5A, 25

17、0V230 VAC1.25 AmpsType-T, Low breaking capacity, Fuse markings T1.25AL, 250V TSS-Sub800 4A 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

18、 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

19、the volume control setting on your processor/preamp or receiver when changing sources,or switching inputs toAM or FM operation.Excessively loud transients (clicks or poppingsounds) can damage the satellite speakers and possibly thesubwoofer.Important!Whenever changing cables,pulling plugs,etc.,ALWAY

20、S TURN OFFALL EQUIPMENT,including the subwoofer.SUBWOOFERCONTROLSRear Panel1Subwoofer-Level Control 2Crossover-Frequency Adjustment 3Phase Switch4LFE Input5Line-Level Inputs6Power Indicator LED7Power SwitchTSS-Sub800NRTU/CCSA22-2 NO.1UL 1492TSS-800 (120V) OM 2/24/06 10:01 AM Page 10 TSS-Sub800 5SUBW

21、OOFERCONNECTIONSIf your receiver/processor does not contain a Dolby Digital or DTS processor but has asubwoofer output: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 (LF

22、E) or subwoofer output:TSS-Sub800/230SUBWOOFER ORLFE OUTPUTTSS-Sub800/230RECEIVER/PROCESSOR15 (4.5m)subwoofercableincluded15 (4.5m)subwoofer cableincludedTSS-800 (120V) OM 2/24/06 10:01 AM Page 11 TSS-Sub800 6OPERATIONSurround ModesWhen using the TSS-800 in a Dolby Digital or DTS home theatersystem,

23、make sure all speakers are set to “Small” .In a Dolby Pro Logichome theater system,make sure the 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).

24、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

25、the“MIN”position.Turn on the subwoofer by pressing the Power Switch 7 on the rear panel.Turn on your entire audio system and start a CD or movie sound-track at a moderate level.Auto On/StandbyWith the Power Switch 7in the ON position,the LED on the rearpanel 6will remain lit in green or red to indic

26、ate the ON orSTANDBY 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 instantly when a s

27、ignalis detected.During periods of normal use,the Power Switch 7can be left on.You may turn off the Power Switch 7for 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-

28、line cord andinput cables.Are the connectors on the cables making propercontact? Is the AC plug connected to a “live”receptacle? Has thePower Switch 7been pressed to the ON position? Once you haveconfirmed that the subwoofer is active,proceed by playing a CDor DVD.Use a selection that has ample bass

29、 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.

30、Many users have a tendency to set the subwoofer volume too loud,adhering to the belief that a subwoofer is there to produce lots ofbass.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 b

31、alance 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 2 determines the highestfrequency at which the subwoofer rep

32、roduces sounds.For the TSS-800,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 Input 4 isused.If you have a Dolby Digital or DTS receiver/processor,the low-pass frequency is set by the receiver/processor.Consu

33、ltyour owners manual to learn how to view or change this setting.A setting of 120Hz 150Hz is recommended.Phase ControlThe Phase Switch 3 determines whether the subwooferspeakers pistonlike action moves in and out with the mainspeakers (0) or opposite the main speakers (180).Properphase adjustment de

34、pends on several variables such as roomsize,subwoofer placement and listener position.Adjust the phaseswitch to maximize bass output at the listening position.Final PositioningAfter correctly connecting the TSS-800 system and verifying thatboth the subwoofer and all satellite speakers are playing,it

35、 istime 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 anydirection.We urge you,therefore,to experiment with placemen

36、t,if possible,until your speakers deliver their full potential.MAINTENANCE ANDSERVICEThe satellite and subwoofer enclosures may be cleaned using asoft cloth to remove fingerprints or to wipe off dust.All wiring connections should be inspected and cleaned orremade periodically.The frequency of mainte

37、nance depends onthe metals involved in the connections,atmospheric conditionsand other factors,but once per year is the minimum.In the event that your TSS-800 ever needs service,contact yourlocal Infinity dealer or distributor,or visit for a service center near you.TSS-800 (120V) OM 2/24/06 10:01 AM

38、 Page 12 TSS-Sub800 7 TSS-Sub800 8 Test Set Up and Procedure Equipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function (UUT = Unit Under Test) 1) From the signal generator, connect one line level (RCA) cable to the Subwoofer Line

39、 Level Input jacks L/R on the UUT. Use a Y-cable from a mono source if necessary to connect to both inputs. Do not connect to the single LFE input. 2) On the amplifier, turn the LEVEL control full counterclockwise (MIN) 3) Turn the Crossover Frequency Adjustment full CW (150Hz) 4) Turn on generator,

40、 adjust to 100mV, 50 Hz. 5) Plug in UUT; turn the power switch ON. LED should be Red. Turn LEVEL control full clockwise (MAX) 6) LED should now be Green; immediate bass response should be heard and felt from bottom port tube opening. 7) Turn off generator, turn LEVEL control fully counterclockwise,

41、disconnect RCA cable. Sweep Function 1) Follow steps 3-6 above, using a sweep generator as a signal source. 2) Sweep generator from 20Hz to 300Hz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or any other noises. If any unusual noises are heard, remove woofers and test. Driver F

42、unction 1) Remove woofer from cabinet; detach + and - wire clips. 2) Check DC resistance of woofer; it should be 4.8 ohms 10% 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

43、 speaker level output is 5.0V. 4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises. 9 TSS-Sub800 TSS-Sub800 10 TSS-Sub800 11 TSS-Sub800 AMP Troubleshooting Flow Chart no yes yes yes no yes yes led red led light green yes yes no yes yes no no yes y

44、es yes no no yes yes yes no yes yes AMP no signal out Dc voltage check Vcc Check+/-15VDC Led light green or red Check Fuse,Transformer, D110, etc Check RY101,D102,Q113,Q114 etc Check Q107,Q108,Q105, Q106,Q103,Q104,U101,etc Check ,+VCC& -VCC DC voltage Check U101,Q115,Q116,R138 etc Check Q117,118,119

45、,D109 etc Check,Q206,Q207,U203 etc Check U202 pin14 signal Check U201 pin14 signal Test R121,R122 signal Check P102 signal The Amp assY OK, END CheckU201,U202,VR201 VR202. etc Check J123,J124 etc Check limiter board C304 Check U301,R343,R344 , C340,Q301,Q302, etc Set R138 to R140S Voltage is 0.51VDC

46、 TSS-Sub800 12 TSS-Sub800 13 TSS-Sub800 14 TSS-Sub800 15 TSS-Sub800 16 TSS-Sub800 17 TSS-Sub800 18TSS-Sub800 (120v) Electrical Parts ListPart NumberDescriptionQtyReference DesignatorPREAMP PCBResistors110-16102j26-eResistor 1k 1/6W 5% CF 26mm (RoHS) 4R213,R214,R215,R254110-16103j26-eResistor 10k 1/6

47、W 5% CF 26mm (RoHS) 12R212.R216.R217.R220.R221.R222.R225.R228.R232.R235.R240.R248110-16104j26-eResistor 100k 1/6W 5% CF 26mm (RoHS) 2R231.R266110-16105j26-eResistor 1M 1/6W 5% CF 26mm (RoHS) 1R259110-16122j26-eResistor 1.2K 1/6W 5% CF 26mm (RoHS) 1R264110-16151j26-eResistor 150OHM 1/6W 5% CF 26mm (R

48、oHS) 1R253110-16154j26-eResistor 150k 1/6W 5% CF 26mm (RoHS) 1R252110-16183j26-eResistor 18k 1/6W 5% CF 26mm (RoHS) 1R262110-16205j26-eResistor 2M 1/6W 5% CF 26mm (RoHS) 1R257110-16223j26-eResistor 22K 1/6W 5% CF 26mm (RoHS) 3R247.R250.R255110-16333j26-eResistor 33K 1/6W 5% CF 26mm (RoHS) 1R249110-1

49、6472j26-eResistor 4.7K 1/6W 5% CF 26mm (RoHS) 2R258.R260110-16473j26-eResistor 47K 1/6W 5% CF 26mm (RoHS) 2R219.R251110-16512j26-eResistor 5.1K 1/6W 5% CF 26mm (RoHS) 3R211.R229.R230116-161002f26-eResistor 10K 1/6W 1% MF 26mm (RoHS) 1R7116-161471f26-eResistor 1.47K 1/6W 1% MF 26mm (RoHS) 1R4116-1615

50、03f26-eResistor 150.0K 1/6W 1% MF 26mm (RoHS) 1R1116-161542f26-eResistor 15.4K 1/6W 1% MF 26mm (RoHS) 2R237.R238116-162400f26-eResistor 240OHM 1/6W 1% MF 26mm (RoHS) 1R2116-162871f26-eResistor 2.87K 1/6W 1% MF 26mm (RoHS) 1R234116-163602f26-eResistor 36K 1/6W 1% MF 26mm (RoHS) 1R233116-165361f26-eRe