HarmanKardon-SUBTS14-pwr-sm维修电路原理图.pdf

harman/kardon SUB-TS14SUB-TS14 (HKTS 14 SUBWOOFER) SERVICE MANUAL harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 4/2004 RadioFans.CN 收音机爱 好者资料库 CONTENTS BASIC SPECIFICATIONS . . . . . . . . . . . . . . . . 1 DETAILED SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . 2 CONTROLS & CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . 4 SPEAKER CONNECTIONS. . . . . . . . . . . . 6 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . .9 BASIC TROUBLESHOOTING GUIDE . . . . . . . . .10 TEST PROCEDURE. . . . . . . . . . . 11 UNIT EXPLODED VIEW. . . . . . . . . . . . . . 12 AMPLIFIER EXPLODED VIEW. . . . . . . . . . . . . . . . . 13 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 PCB DRAWINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ELECTRICAL PARTS LIST . . . . . . . . . . 19 SEMICONDUCTOR PINOUTS . . . . . . . . . . . . . .24 SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . .25 PACKAGING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 SPECIFICATIONS Amplifier Power (RMS) 200 Watts Driver 12 woofer, Bass Reflex Enclosure Inputs Stereo Line Level, dedicated Subwoofer (LFE) and Speaker Level with gold-plated binding posts Outputs Speaker Level with gold-plated binding posts Frequency Response 25Hz 120Hz (Filter switch ON) 25Hz 450Hz (Filter switch OFF) Dimensions (H x W x D) 20-1/2 x 14-1/2 x 14-1/2 521mm x 368mm x 368mm Weight 48 lb/22kg Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications unless otherwise stated. SUB-TS14 SUB-TS14 harman/kardon harman/kardon RadioFans.CN 收音机爱 好者资料库HKTS 14 Sub 200W Powered Sub/ Plate AmpLINE VOLTAGEYes/NoHi/Lo LineNom.UnitNotesUS 120vac/60HzYes108-132120VrmsNormal OperationParameterNonimal SpecificationUnitQA Test LimitsConditionsNotesAmp SectionType (Class AB, D, other)Dn/an/aBridge type amplifier, None of thespeaker terminals must be connected to system GND at any Load Impedance (speaker)3.5Ohmsn/aNominalRated Output Power200Watts15050 - 250 Hz, 1 input driven, limiter offTHD Rated Power0.08%0.122k filterTHD 1 Watt0.15%0.522k filterDC Offset5mV-DC20 Speaker OutputsDamping factor16n/a10Measured at amplifier board Measured at the speaker at speakeoutput terminals on the amp board.Input SensitivityInput Frequency50Hzn/aNominal Freq.Line (L&R) Input 220mVrms154 - 308 To Rated PowerSingle input drivenSUB (LFE) Input125mVrms87 - 175To Rated PowerSUB (LFE) input driven onlySpeaker/Hi Level Input3.4Vrms2.4 - 4.8To Rated Power(20 dB below Line In), Single input Hi Level Max. Input Voltage32Vrms30Nominal Freq., Min. VolumeSignal to Noise RatioSNR-A-Weighted85dB82relative to rated powerA-Weighting filterSNR-unweighted62dB59relative to rated power22k filterSNR rel. 1W-unweighted64dB59relative to 1W Output22k filterResidual Noise Floor1.2mVrms3.0Volume max, using RMS reading DMM/VOM (or A/P)Residual Noise Floor0.8mVrms2.0Volume max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics)Input ImpedanceLine Input (L, R,LFE)10Kohmsn/aNominalSpeaker/Hi Level Input4.7Kohmsn/aNominalFiltersL&R Fixed Low-Pass Filter160Hz140 - 180 -6dB ref. 100Hz3rd order fixedSUB (LFE) Low pass Filter270Hz240 - 300 -3dB ref. 100Hz2nd order fixedSubsonic filter (HPF) 3rd Order25Hz22 - 28 -3dB ref. 30Hz3rd order fixedLimiter THD at Max. Output Power2.0%5.0FeaturesAuto - On -Off Selection SwitchYESfunctional Refer to ATO sectionPhase Switch0-180degfunctional Filter On/Off SwitchYESfunctional Volume Pot Taper (Lin/Log)LOGfunctional A TaperSpeaker OutYESfunctional Binding post connector L&R2-Color LED power indicatorYESfunctional Blue: On, Amber: Stand-byPower SwitchYESfunctional Fuse HolderYESfunctional Input ConfigurationLine In (L,R)YESfunctional Dual RCA jackSUB (LFE)YESfunctional RCA jackSpeaker/Hi Level InYESfunctional Binding post connector L&RSignal Sensing (ATO)Auto-Turn-On (yes/no)YESfunctional Auto - on selection switch in Auto ATO Input test frequency50Hzn/aATO Level Line & SUB Input4.0mV2.0 - 6.0ATO Level Speaker in35mV20 - 50ATO Turn-on time0.9sec.functional Amp connected and AC on, then input signal appliedATO Turn-OFF Time12minutes5 - 17Time before muting, after signal is removedSUB-TS14 SUB-TS14 harman/kardon harman/kardon 2Power on Delay time3sec.functional AC Power AppliedTransients/PopsATO Transient5mV-peak10 Speaker OutputsTurn-on Transient500mV-peak700 Speaker OutputsAC Line cycled from OFF to ONTurn-off Transient500mV-peak700 Speaker OutputsAC Line cycled from ON to OFFEfficiencyStand-by Input Power8Watts12 nom. line voltageMaximum allowable input power under nominal input voltage and frequency, in stand-by mode (HOT Power Consumption rated power240Watts250 nom. line voltage200 Watts 3.5 ohms and nominal line voltageProtectionShort Circuit Protection YESfunctional Direct short at outputAmplifier should resume operationafter short circuit condition is Thermal Protection YESfunctionalAny user accessible metal parts should always remain at 65 degree C or less for domestic version or 55degree C or less for EU version.DC Offset ProtectionYESfunctional DC present at Speaker Out leadsRelay or crowbar (for driver/firePrimary Fuse RatingUSA-Domestic 3.15Ampsn/aType-T or Slo Blo (no DENTORI maUser-replacable fuse withUL/SEMCO rated holder.SUB-TS14 SUB-TS14 harman/kardon harman/kardon 3SUB-TS14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS 5SUB-TS 14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONSOFFONAUTOONFILTERNORMALREVERSEPHASEINOUTAC 120V60HzPOWERRLLINELEVELINMAXMINIMPORTANT: CONNECT STRIPED WIRETO RED ( ) SPEAKER TERMINAL.LRSUBWOOFERLEVELSUB-TS14For use withHKTS 14 SystemRISK 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 OPENHIGH LEVELSUB Subwoofer-Level Control: Volume may be adjusted using the Subwoofer-Level Control.Turn the control clockwise to increase the SUB-TS14s volume, orcounterclockwise to decrease it. High-Cut (Low-Pass) Filter Switch:Placing this switch in the ON position acti-vates circuitry that cuts out all audio inputsignals above 120Hz.This allows the SUB-TS14 to focus its power on reproducing thelow-frequency portion of the signal, avoidinginefficiency and distortion. Engage this filterwhen using the Speaker-Level Inputs ,or when using the Line-Level Full-RangeInputs , unless your receiver or processorprocesses its line-level output using a low-pass filter.The filter has no effect when theSUB Input is used. Music-Sense On/Off Switch:Whenplaced in the AUTO position,and when theMaster Power Switch is turned on,theSUB-TS14 will automatically turn itself on orplace itself in the Standby mode,depending onwhether it is receiving an audio signal.Whenthis switch is placed in the ON position,theSUB-TS14 will remain on,whether or not it isreceiving an audio signal.An LED located on top of the SUB-TS14indicates whether the SUB-TS14 is in theON or STANDBY state when used with theMusic-Sense On/Off Switch in theAUTO position.The LED is lit blue to indi-cate that the SUB-TS14 is receiving an Subwoofer-Level Control High-Cut (Low-Pass) Filter Switch Music-Sense On/Off Switch Phase Switch Line-Level Subwoofer (SUB) Input Line-Level Full-Range Inputs Speaker-Level Outputs Speaker-Level Inputs Master Power Switch AC Power CordHKTS 14 OM 11/4/03 11:32 AM Page 7 SUB-TS14 SUB-TS14 harman/kardon harman/kardon 46SUB-TS14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONSSUB-TS14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONSaudio signal and is turned on, and the LED is lit amber to indicate that no signal is beingreceived and the SUB-TS14 is in Standbymode.When the Music-Sense On/Off Switch is in the ON position, the LED will be litblue, whether or not an audio signal is present.When the Master Power Switch isturned off, the LED goes dark, no matterwhich position the Music-Sense On/OffSwitch is in. Phase Switch: This switch determineswhether the SUB-TS14 subwoofers piston-like action moves in and out in phase withthe main speakers. If the speakers were toplay out of phase, the sound waves pro-duced by the subwoofer would be cancelledout, reducing bass response.This phenome-non depends in part on the relative place-ment of the speakers in the room. In mostcases, the Phase Switch should be leftin the NORMAL position. However, itdoes no harm to experiment with the PhaseSwitch , and you may leave it in theposition that maximizes bass response. Line-Level Subwoofer (SUB) Input:Connect the subwoofer output of a receiverwith digital surround sound decoding, suchas Dolby* Digital or DTS, to this input.Thisinput bypasses the SUB-TS14s internalcrossover circuitry, and should only be usedwith a filtered signal. If your receiver does nothave digital decoding,you should use theLine-Level Full-Range Inputs instead. Line-Level Full-Range Inputs: Connectthe line-level subwoofer output or preamp out-put(s) of your receiver or amplifier to theseinputs.If your receiver does not have a sepa-rate subwoofer output,use a Y-adaptor (notsupplied) to bridge the receivers preamp out-put to the main amp input for that channel,and connect the long end of the adaptor to the corresponding line-level input on theSUB-TS14.If your receiver has only a singlesubwoofer output,you may connect it to either the left or right line-level input on theSUB-TS14,and no Y-adaptor is needed. Speaker-Level Outputs: If you areusing the Speaker-Level Inputs on theSUB-TS14, you should connect these bind-ing post terminals to your front left and rightspeakers, remembering to maintain polarityby connecting the (+) terminal on the SUB-TS14 subwoofer to the (+) terminal on thespeaker, and the () terminal on the SUB-TS14 subwoofer to the () terminal on thespeaker. If you are not using the Speaker-Level Inputs , then connect your frontleft and right speakers directly to your receiv-er or amplifier. See pages 9 through 12 forfurther information on speaker connections. Speaker-Level Inputs: Connect thesebinding-post terminals to the main left andright speaker terminals of your receiver oramplifier, if your receiver or amplifier doesnot have a line-level subwoofer output.Remember to maintain polarity by connectingthe (+) terminal on the receiver/amplifier to the(+) terminal on the SUB-TS14 subwoofer,andthe () terminal on the receiver/amplifier to the() terminal on the SUB-TS14 subwoofer. Master Power Switch: Place thisswitch in the “” position to power-on theSUB-TS14 subwoofer.The SUB-TS14 willthen be either in the Standby mode or com-pletely on, depending on the position of theMusic-Sense On/Off Switch . AC Power Cord: Make sure to plug this cord into an active, unswitched electrical out-let for proper operation of the SUB-TS14.The cord should not be plugged into theaccessory outlets found on some audiocomponents.HKTS 14 OM 11/4/03 11:32 AM Page 8 SUB-TS14 SUB-TS14 harman/kardon harman/kardon 5Dolby* Digital or DTS(or OtherDigital Surround Mode) ConnectionUSE THIS INSTALLATION METHOD FORDOLBY DIGITAL, DTS OR OTHER DIGITALSURROUND PROCESSORS:Use the line-level input jack marked SUB for the Low-Frequency Effects channel.Connect this jack to the subwoofer output or LFE output on your receiver or amplifier.Connect each speaker to the correspondingspeaker terminals on your receiver or amplifier.Make sure youve configured your surroundsound processor for “Subwoofer On. ” Thefront left, front right, center and surroundspeakers should all be set to “Small. ”When all connections have been made, plugthe AC power cord on the subwoofer intoan AC outlet.SPEAKER CONNECTIONSLINE LEVEL INLRSUBSUB/LFE OutSUB-TS14 SubwooferReceiverFrontLeftSurroundLeftFrontRightSurroundRightCenterSurroundRightFrontRightSurroundLeftFrontLeftCenter + + + + +HKTS 14 OM 11/4/03 11:32 AM Page 12 SUB-TS14 SUB-TS14 harman/kardon harman/kardon 6SPEAKER CONNECTIONS 11Dolby Pro Logic* (Non-Digital) Line LevelUSE THIS INSTALLATION METHOD FORDOLBY PRO LOGIC APPLICATIONS (NOTDOLBY DIGITAL, DTS OR OTHER DIGITALPROCESSING),WHERE THE RECEIVER/PROCESSOR IS EQUIPPED WITH A SUBWOOFER OUTPUT, OR A VOLUME-CONTROLLED PREAMP (LINE-) LEVEL OUTPUT:Use the supplied RCA-type interconnectcable to connect the line-level subwooferoutput on your receiveror amplifier to eitherthe left or right Line-Level Full-RangeInput on the SUB-TS14 subwoofer.Use both the left and right inputs on thesubwoofer if your receiver or processor hasboth left and right line-level outputs. In thatcase, you will need to supply a secondinterconnect cable.If your receiver is equipped with line-level out-puts but does not have a separate subwooferoutput,use a Y-adaptor (not supplied) tobridge the receivers preamp output to themain amp input for that channel,and connectthe long end of the adaptor to the corre-sponding line-level input on the SUB-TS14.IMPORTANT: Do not use the SUB Input on the subwoofer with Dolby Pro Logicprocessors.If your receiver/processor has a built-in low-pass-crossover filter for the subwoofer out-put, you may use the SUB Input tobypass the subwoofers internal crossover.Connect each speaker to the correspondingspeaker terminals on your receiver or amplifier.Make sure that you have configured yoursurround sound processor for “SubwooferOn. ” The front left, front right, center andsurround speakers should all be set to“Small. ”When all connections have been made, plugthe AC power cord on the subwoofer intoan AC outlet.SPEAKER CONNECTIONSReceiverSUB/LFE OutFrontLeftSurroundLeftFrontRightSurroundRightSUB-TS14SubwooferCenterLine-LevelRL + + + + +SurroundRightFrontRightSurroundLeftFrontLeftCenterHKTS 14 OM 11/4/03 11:32 AM Page 13 SUB-TS14 SUB-TS14 harman/kardon harman/kardon 712SPEAKER CONNECTIONSSPEAKER CONNECTIONSFront LeftSurround LeftCenterFront RightSurround RightReceiver + + + + +SUB-TS14SubwooferSurroundRightFrontRightSurroundLeftFrontLeftCenterLRHIGHLEVELDolby Pro Logic (Non-Digital) Speaker LevelUSE THIS INSTALLATION METHOD FORDOLBY PRO LOGIC APPLICATIONS (NOTDOLBY DIGITAL, DTS OR OTHER DIGITALPROCESSING),WHERE THE RECEIVER/PROCESSOR DOES NOT HAVE A SUB-WOOFER OUTPUT, OR A VOLUME-CONTROLLED PREAMP (LINE-) LEVEL OUTPUT:Connect your receiver or amplifiers frontleft and right speaker terminals to the leftand right Speaker-Level Input termi-nals on the SUB-TS14 subwoofer that aremarked “High Level In.” Connect the left andright Speaker-Level Output terminalson the SUB-TS14 subwoofer that aremarked “High Level Out” to the correspond-ing terminals on the back of your front leftand right speakers.Connect your receiver or amplifiers center,and surround left and right speaker termi-nals to the corresponding terminals on theback of your center, and surround left andright speakers.When all connections have been made,plug the AC power cord on the subwooferinto an AC outlet.HKTS 14 OM 11/4/03 11:32 AM Page 14 SUB-TS14 SUB-TS14 harman/kardon harman/kardon 8OPERATION 13OPERATIONMove the Master Power Switch (marked Power) to the “” (On) position.The SUB-TS14 subwoofe