HarmanKardon-TU970II_230-tun-sm维修电路原理图.pdf

harman/kardon Service Manual TU 970II/230 FM/AM/DAB Tuner CONTENTS TECHNICAL SPECIFICATIONS 2 TROUBLESHOOTING GUIDE 3 FRONT PANEL CONTROLS 4 REAR PANEL CONNECTIONS 5 REMOTE CONTROL FUNCTIONS 6 EXPLODED VIEW AND PARTS 7 ELECTRICAL PARTS LIST 8 SEMICONDUCTOR FUNCTION/PINOUTS 15 PCB DRAWINGS 18 BLOCK DIAGRAM 19 WIRING DIAGRAM 20 SCHEMATIC DIAGRAM 21 Released EU2008 harman/kardon, Inc. Rev 0, 10/2008 250 Crossways Park Dr. Woodbury, New York, 11797 harman/kardonTU 970II/230 Service ManualPage 1 of 21RadioFans.CN 收音机爱 好者资料库Technical SpecificationsFM SectionFrequency Range87.50 MHz to 108.00 MHz (50 kHz steps) Signal-to-Noise Ratio65 dB (Mono) 60 dB (Stereo)Presets30AM SectionFrequency Rang522 kHz to 1620 kHz (9 kHz steps) Signal-to-Noise Ratio35 dB Presets30DAB SectionRF SectionBand lll, 174 MHz - 240 MHz Band L, 1452 MHz - 1492 MHzInput: 50 Ohm, nominal Max signal: -3 dBm typ Sensitivity: -96 dBm typAdjacent Channel Rejection: 35dB typ Display2 line by 16 character DOT Matrix Presets99Audio OutputStereo, 2.5V P-P48 kHz sample rate 16 bit sample resolutionOptical S/PDIFIEC60958 Compliant 48 kHz sample rate 24 bit sample resolutionGeneralPower Requirement230-240 V AC, 50 Hz Power Consumption12 W3 W (standby)Dimension (Max)Width442 mmHeight63 mm Depth299 mm Weight3.4 kgDepth measurement includes knobs, buttons and terminal connections. Height measurement includes feet and chassis.All features and specifications are subject to change without notice.Harman Kardon and Power for the Digital Revolution are registered trademarks of Harman Kardon, IncorporatedENGLISH29168_TU970II_ENG 03/07/06 11:03 Side 13harman/kardonTU 970II/230 Service ManualPage 2 of 21RadioFans.CN 收音机爱 好者资料库12 TROUBLESHOOTING GUIDETroubleshooting GuideThis unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. If you have a problem, first check this list for apossible solution. If the problem persists, consult your authorized Harman Kardon Service Center.If the problem is.Make sure that the.No lights appear when System Power button is pressedUnit is plugged into a live outlet.Make sure the outlet is active.No sound is heardTune to an active station.Check for correct amplifier settings.Check the connections and wires.Sound distorts, particularly in stereo mode.Use a more directional antenna.Intermittent or continuous buzzing or hissing.Place the unit farther away from these appliances. Install noise filters on the appliances.Display says No stations AvailableCheck that antenna is connected.Ensure that DAB coverage exists in your area.Display has gone blank or says service off airThis may occur if a broadcaster changes the label of a service or removes a label whilst youare listening to it.Try to retune to this station, using the Autotune procedure.29168_TU970II_ENG 03/07/06 11:03 Side 12harman/kardonTU 970II/230 Service ManualPage 3 of 21?Power Indicator:This LED will illuminate inamber when the unit is in the Standby mode tosignal that the unit is ready to be turned on.When the unit is in operation, the indicator willturn blue.1System Power Control: Press this buttonto turn on the TU 970 II; press it again to turnthe unit off (to Standby). Note that the PowerIndicator?next to the switch will turn bluewhen the unit is on.2Band Selector: Press this button to changebetween the DAB, FM and AM frequency bands.3Function/FM Mode Selector: In DABmode, pressing this button will activate stationorder, preset tune, Dynamic Rate Control ormanual tune features. In FM mode, press thisbutton to select the stereo or mono mode forFM tuning. In the stereo mode, the wordSTEREOwill be shown in the InformationDisplay6, and stereo reception will beprovided when stations are transmitting stereosignals. In the mono mode, the left and rightsignals from stereo broadcasts will be mixedtogether and reproduced through all channels.Select MONOfor better reception of weaksignals.4Info/RDS Button: In DAB mode, pressingthis button will change the content of the lowerdisplay line of the Information Display as shownon page 9, as well as signal error rate and soft-ware version. In RDS mode, it will changebetween the different RDS options.5Auto Tune Button: In DAB mode, press thisbutton to automatically scan all availablestations.6Information Display:This dual line displaydelivers messages and status indications to helpyou operate the tuner.7Dimmer: Press this button to dim the frontpanel display.The first press of the button willdim the displays to one-half normal brightness;the next press will turn back to normal bright-ness.The display will return to normal brightnessthe next time the unit is turned on.8Memory Button: Press this button to openthe memory position that stores a presetlocation in the tuner. 99 DAB presets can bestored, as well as 30 FM and 30 AM presets.(See page 9 for more information on tunerpresets.)9Control Ring:Turn counterclockwise totune lower frequency stations and clockwise totune higher frequency stations.When a stationwith a strong signal is tuned, the InformationDisplay6will read TUNED.Turn again totune to the next frequency increment in ManualTune Mode, or automatically to the nextstation with a signal strong enough foracceptable reception in Auto Tune Mode.The ring also controls the parameters in thedifferent menus.A Select: In FM or AM mode, press thisbutton to select Auto Tune, Manual Tune orPreset Tune. In DAB mode, press this button toselect the displayed station.BRemote Sensor Window:The sensorbehind this window receives infrared signalsfrom the remote control.Aim the remote at thisarea and do not block or cover it unless anexternal remote sensor is installed.13456782?9A4 FRONT PANEL CONTROLSFront Panel Controls?123456789ABPower IndicatorSystem Power ControlBand selectorFunction/FM Mode SelectorInfo/RDS ButtonAuto Tune ButtonInformation DisplayDimmerMemoryControl RingSelectRemote Control Sensor29168_TU970II_ENG 03/07/06 11:03 Side 4harman/kardonTU 970II/230 Service ManualPage 4 of 21REAR PANEL CONNECTIONS 5Rear Panel Connections? ? ? ? ? ? ? ? ? Optical and Coaxial Digital OutputsFM AntennaAM AntennaAnalog Audio OutputsDAB AntennaAC Power CordRemote Control OutputRemote Control Input?Optical and Coaxial Digital Outputs:Connect one of these jacks to the optical orcoaxial digital input of your pre amplifier orintegrated amplifier, if available.Note that these digital outputs only contain thedigital signal from the DAB stations. For FM/AMreception, you will have to connect the analogoutputs at all times.?FM Antenna: Connect an indoor or exter-nal FM antenna to this terminal.?AM Antenna: Connect the AM loopantenna supplied with the receiver to theseterminals. If an external AM antenna is used,make connections to the AM and GNDterminals in accordance with the instructionssupplied with the antenna.?Analog Audio Outputs: Connect thesejacks to the tuner input of your pre amplifier orintegrated amplifier for analog audio playback.Be certain to observe proper channelconnections using the color-coded cables andconnectors so that red connects right channelsand white connects left channels.NOTE: Before making any audio connections,unplug all components of your audio systemfrom their AC power outlets.To reduce thepossibility of hum or noise in your system, placeall audio interconnection cables away from bothAC power cords and speaker wires.?DAB Antenna: Connect a DAB antenna tothis terminal.?AC Power Cord: Connect this plug to anAC outlet. If the outlet is controlled by a switch,make certain that it is in the ON position.?Remote Control Output: Connect thisjack to the infrared (IR) input jack of anothercompatible Harman Kardon remote controlledproduct to have the built-in Remote Sensor onthe tuner provide IR signals to other compatibleproducts.?Remote Control Input: Connect theoutput of a remote infrared sensor, or theremote control output of another compatibleHarman Kardon product, to this jack.This willenable the remote control to operate even whenthe front panel Remote Sensor on the tuner isblocked.This jack may also be used withcompatible IR remote control-based automationsystems.29168_TU970II_ENG 03/07/06 11:03 Side 5harman/kardonTU 970II/230 Service ManualPage 5 of 210123456789A6 REMOTE CONTROL FUNCTIONSRemote Control Functions0246789A531Standby/Power On Numeric KeysClear ButtonInfo/RDS ButtonAuto Tuning ButtonScroll ButtonFunction/FM Mode SelectorBand SelectorSelect ButtonMemory ButtonStandby/Power Off0Standby/Power On: Press this button toturn on the TU 970 II. Note that the PowerIndicator?next to the switch will turn bluewhen the unit is on.1Numeric Keys:These buttons serve as aten-button numeric keypad to enter tuner presetpositions or to tune stations directly.2Clear Button: Press this button to clearpresets from your station list.3Info/RDS Button: Pressing this button willchange the content of the lower display line ofthe Information Display as well as signal errorrate and software version. (See page 9 for moreinfo).4Auto Tune Button: In DAB mode, pressthis button to automatically scan all availablestations.5Scroll Buttons: Press Lto tune lowerfrequency stations and Kto tune higherfrequency stations.When a station with a strongsignal is tuned, the Information Display6will read TUNED. Press again briefly to tune tothe next frequency increment in Manual TuneMode, or keep pressed for automatic search forthe next station with a signal strong enough foracceptable reception in Auto Tune Mode.Thesebuttons also control the parameters in thedifferent menus, like the Control Ring9onthe front panel.6Function/FM Mode Selector: In DABmode, pressing this button will activate stationorder, preset tune, Dynamic Rate Control ormanual tune features. In FM mode, press thisbutton to select the stereo or mono mode for FMtuning. In the stereo mode, the word STEREOwill be shown in the Information Display6,and stereo reception will be provided whenstations are transmitting stereo signals. In themono mode, the left and right signals from stereobroadcasts will be mixed together andreproduced through all channels. Select MONOfor better reception of weak signals.7Band Selector: Press this button to changebetween the DAB, FM and AM frequency bands.8Select: In FM or AM mode, press thisbutton to select Auto Tune, Manual Tune or PresetTune.9Memory Button: Press this button to openthe memory position that stores a preset locationin the tuner. 99 DAB presets can be stored, aswell as 30 FM and 30 AM presets. (See page 9for more information on tuner presets.)AStandby/Power Off: Press this button toturn the unit off (to Standby).29168_TU970II_ENG 03/07/06 11:03 Side 6harman/kardonTU 970II/230 Service ManualPage 6 of 21E X P L O D E D V I E W ( T U 970I I )1012345678912141511131718211924252628232230273132332029S 1X 2S 1X 5S 1X 6S 1X 4S 2X 2S 2S 2X 3X 5S 6X 4S 6S 3X 4S 3X 4S 4X 5S 5S 7X 4X 4X 4X 4S 81634 35O R N A M E N T , B A R ( B )I N D I C A T O R , R O T A R YO R N A M E N T , B A R ( D )D E S C R I P T I O NB A D G EO R N A M E N T , B A R ( A )O R N A M E N T , B A R ( C )P A N E L , F R O N TI N D I C A T O R , P O WE RP C B ( L E D )11108795612N O .34C G L 1A 229K G X 1A 344M B C 22P A R T S N O .C G U 1A 324ZC A P , R O T A R YWI N D O W, F I PK G B 1A 111XK G R 1A 327M B C 22C G W1A 374R D H 43C G L 1A 227K G R 1A 326M B C 22K G R 1A 325M B C 22Q T Y11111111111K N O B , P O WE RP C B ( F R O N T )1213K B T 1A 918 M B C 2211C H D 1A 023P A R T S N O .C T B 3+10GC T B 3+10G F ZS 1N O .S 2S 3C T B 3+6J F ZC T W3+8 JS 5S 4S 6S 7C T B 3+6JD E S C R I P T I O NS C R E WS C R E WS C R E WQ T Y1768S C R E WS C R E WS C R E WS C R E W, T R A N S1594123S U P P O R T , P C BC A B I N E T , T O PP C B ( M I C O M )P C B ( F R O N T )P C B ( R O T A R Y )B R A C K E T , F I PK N O B , M E M O R YF I P M O D U L EK B T 1A 919M B C 22K B T 1A 920M B C 221415K N O B , S E L E C TC M H 1A 226C K C 1B 151S 4616171819212022112131111T U N E R M O D U L EP C B ( M A I N )242511K G R 1A 328 M B C 22C M D 1A 501K H G 1A 050C K F 1A 275Z2627C U A 1A 24031302928C K L 1A 18 6H 43C H A S S I S , B O T T O MP C B ( J A C K )11F O O TC U S H I O N , F O O TP C B ( T R A N S )P A N E L , R E A R14413233P O WE R C O R DB U S H I N G , A C C O R D11K H R 1A 028C T B 3+8 J F CS C R E WS 8 C T S 3+8 J F C4D A B M O D U L EH N V F S 2020V E N I C EH F L 16T 202D A 1EC O P 11666BC J A 2B 043Z AC N V M B 114M A 18 L3534C M Z 1A 095S H E E T , R O T A R Y1C M Z 1A 093F I L T E R , F I P1harman/kardonTU 970II/230 Service ManualPage 7 of 21POSPART NUMBERPART NAMECOMMENTSCHE154CLAMPER , ARMCQXTU970II/230INSTRUCTION MANUAL ASSYCARTTU970IIREMOCON , TRANSMITER ASSYCJS4M009XCORD, PINCORD, PINCJS4N014ZCORD , PINCJS9D002ZCORD , JACK(MONO) 1200MMCQX1A1145ZMANUAL, INSTRUCTIONCGL1A229INDICATOR, ROTARYCGWTU970II/230FRONT PANEL ASSYCBT1A918MBG27KNOB, POWERCBT1A919MBG27KNOB, MEMORYCBT1A920MBG27KNOB, SELECTCGL1A227INDICATOR, POWERCGU1A324XWINDOW, FIPCGU1A324X-1WINDOW, FIPCGW1A374RDH43PANEL, FRONTTU970CMZ1A093FILTER, FIPPVC 0.4TCMZ1A095SHEET, ROTARYCTB3+10GRSCREWCTW3+10GRSCREWCWC1C4A23B160BCABLE , CARDHFL16T202DA1EVFD , MODULE16T202DA1EFIP1KJP14TT152ZYPIN HEADER (2.54MM)CGX1A344MBG27CAP, ROTARYCHG1A113RUBBERCHR301CLAMPERBKC1C151S46SHEET , CABINET(296X560)ALKOR 40211CUATU970II/230BOTTOM CHASSIS ASSYCHD1A023RSCREW , SPECIALCMH1A226SUPPORT , PCBCNE1A009NUT, DABM3/8X32CNVFS2022V131CMODULE , DUAL DABFS2022-0101-0005CNVMB114MA18LTUNER MODULE(EUR)CNW1A038WASHER9.5X15COP11923BPCB , ASSYCIP11923BPCB , AUTO ASSYCUP11923ZPCB , MAINC101 CCEA1CH471TCAP , ELECT470UF 16VC104 CCFT1H223ZFCAP, CERAMIC22000UF 50VC201 CCEA1AH471TCAP , ELECT470UF 10VC202 CCFT1H223ZFCAP, CERAMIC22000UF 50VC203 CCEA1AH471TCAP , ELECT470UF 10VC204 CCFT1H223ZFCAP, CERAMIC22000UF 50VC205 CCEA1HH4R7TCAP , ELECT4.7UF 50VC206 CCCT1H220JCCAP , CERAMIC22UF 50VC207 CCFT1H223ZFCAP, CERAMIC22000UF 50VC208 CCEA1AH101TCAP , ELECT100UF 10VC209 CCEA1HH4R7TCAP , ELECT4.7UF 50VC210 CCFT1H223ZFCAP, CERAMIC22000UF 50VC211 CCEA1AH101TCAP , ELECT100UF 10VC212 CCEA1HH4R7TCAP , ELECT4.7UF 50VC213 CCCT1H220JCCAP , CERAMIC22UF 50VTU 970II/230 FM/AM/DAB TUNERharman/kardonTU 970II/230 Service ManualPage 8 of 21POSPART NUMBERPART NAMECOMMENTSC214 CCFT1H223ZFCAP, CERAMIC22000UF 50VC215 CCEA1AH101TCAP , ELECT100UF 10VC216 CCEA1HH4R7TCAP , ELECT4.7UF 50VC217 CCEA1AH101TCAP , ELECT100UF 10VC218 CCFT1H223ZFCAP, CERAMIC22000UF 50VC219 CCEA1HH4R7TCAP , ELECT4.7UF 50VC220 CCEA1HH4R7TCAP , ELECT4.7UF 50VC221 HCQI1H152JZTCAP , MYLAR1500UF 50VC222 HCQI1H152JZTCAP , MYLAR1500UF 50VC223 CCEA1HH4R7TCAP , ELECT4.7UF 50VC224 CCEA1HH4R7TCAP , ELECT4.7UF 50VC225 CCFT1H103ZFCAP, CERAMIC10000UF 50VC226 CCKT1H102KBCAP , CERAMIC1000UF 50VC228 CCEA1HH4R7TCAP , ELECT4.7UF 50VC229 CCEA1AH101TCAP , ELECT100UF 10VC230 CCEA1CH470TCAP , ELECT47UF 16VC231 CCFT1H104ZFCAP , SEMICONDUCTOR100nF 50VC234 CCCT1H330JCCAP , CERAMIC33UF 50VC235 CCEA1AH101TCAP , ELECT100UF 10VC701 CCEA1AH471TCAP , ELECT470UF 10VC702 CCCT1H330JCCAP , CERAMIC33UF 50VC703 CCCT1H330JCCAP , CERAMIC33UF 50VC704 CCFT1