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 RadioFans.CN Technical Specifications FM Section Frequency Range87.50 MHz to 108.00 MHz (50 kHz steps) Signal-to-Noise Ratio65 dB (Mono) 60 dB (Stereo) Presets30 AM Section Frequency Rang522 kHz to 1620 kHz (9 kHz steps) Signal-to-Noise Ratio35 dB Presets30 DAB Section RF SectionBand lll, 174 MHz - 240 MHz Band L, 1452 MHz - 1492 MHz Input: 50 Ohm, nominal Max signal: -3 dBm typ Sensitivity: -96 dBm typ Adjacent Channel Rejection: 35dB typ Display2 line by 16 character DOT Matrix Presets99 Audio OutputStereo, 2.5V P-P 48 kHz sample rate 16 bit sample resolution Optical S/PDIFIEC60958 Compliant 48 kHz sample rate 24 bit sample resolution General Power Requirement230-240 V AC, 50 Hz Power Consumption12 W 3 W (standby) Dimension (Max) Width442 mm Height63 mm Depth299 mm Weight3.4 kg Depth 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, Incorporated ENGLISH 29168_TU970II_ENG 03/07/06 11:03 Side 13 RadioFans.CN 12 TROUBLESHOOTING GUIDE Troubleshooting Guide This 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 a possible 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 you are listening to it.Try to retune to this station, using the Autotune procedure. 29168_TU970II_ENG 03/07/06 11:03 Side 12 RadioFans.CN ?Power Indicator:This LED will illuminate in amber when the unit is in the Standby mode to signal that the unit is ready to be turned on. When the unit is in operation, the indicator will turn blue. 1System Power Control: Press this button to turn on the TU 970 II; press it again to turn the unit off (to Standby). Note that the Power Indicator?next to the switch will turn blue when the unit is on. 2Band Selector: Press this button to change between the DAB, FM and AM frequency bands. 3Function/FM Mode Selector: In DAB mode, pressing this button will activate station order, preset tune, Dynamic Rate Control or manual tune features. In FM mode, press this button to select the stereo or mono mode for FM tuning. In the stereo mode, the word STEREOwill be shown in the Information Display6, and stereo reception will be provided when stations are transmitting stereo signals. In the mono mode, the left and right signals from stereo broadcasts will be mixed together and reproduced through all channels. Select MONOfor better reception of weak signals. 4Info/RDS Button: In DAB mode, pressing this button will change the content of the lower display line of the Information Display as shown on page 9, as well as signal error rate and soft- ware version. In RDS mode, it will change between the different RDS options. 5Auto Tune Button: In DAB mode, press this button to automatically scan all available stations. 6Information Display:This dual line display delivers messages and status indications to help you operate the tuner. 7Dimmer: Press this button to dim the front panel display.The first press of the button will dim the displays to one-half normal brightness; the next press will turn back to normal bright- ness.The display will return to normal brightness the next time the unit is turned on. 8Memory Button: Press this button to open the memory position that stores a preset location in the tuner. 99 DAB presets can be stored, as well as 30 FM and 30 AM presets. (See page 9 for more information on tuner presets.) 9Control Ring:Turn counterclockwise to tune lower frequency stations and clockwise to tune higher frequency stations.When a station with a strong signal is tuned, the Information Display6will read TUNED.Turn again to tune to the next frequency increment in Manual Tune Mode, or automatically to the next station with a signal strong enough for acceptable reception in Auto Tune Mode. The ring also controls the parameters in the different menus. A Select: In FM or AM mode, press this button to select Auto Tune, Manual Tune or Preset Tune. In DAB mode, press this button to select the displayed station. BRemote Sensor Window:The sensor behind this window receives infrared signals from the remote control.Aim the remote at this area and do not block or cover it unless an external remote sensor is installed. 13456782?9A 4 FRONT PANEL CONTROLS Front Panel Controls ? 1 2 3 4 5 6 7 8 9 A B Power Indicator System Power Control Band selector Function/FM Mode Selector Info/RDS Button Auto Tune Button Information Display Dimmer Memory Control Ring Select Remote Control Sensor 29168_TU970II_ENG 03/07/06 11:03 Side 4 harman/kardonTU 970II/230 Service Manual Page 4 of 21 REAR PANEL CONNECTIONS 5 Rear Panel Connections ? ? ? ? ? ? ? ? ? ? ? Optical and Coaxial Digital Outputs FM Antenna AM Antenna Analog Audio Outputs DAB Antenna AC Power Cord Remote Control Output Remote Control Input ?Optical and Coaxial Digital Outputs: Connect one of these jacks to the optical or coaxial digital input of your pre amplifier or integrated amplifier, if available. Note that these digital outputs only contain the digital signal from the DAB stations. For FM/AM reception, you will have to connect the analog outputs at all times. ?FM Antenna: Connect an indoor or exter- nal FM antenna to this terminal. ?AM Antenna: Connect the AM loop antenna supplied with the receiver to these terminals. If an external AM antenna is used, make connections to the AM and GND terminals in accordance with the instructions supplied with the antenna. ?Analog Audio Outputs: Connect these jacks to the tuner input of your pre amplifier or integrated amplifier for analog audio playback. Be certain to observe proper channel connections using the color-coded cables and connectors so that red connects right channels and white connects left channels. NOTE: Before making any audio connections, unplug all components of your audio system from their AC power outlets.To reduce the possibility of hum or noise in your system, place all audio interconnection cables away from both AC power cords and speaker wires. ?DAB Antenna: Connect a DAB antenna to this terminal. ?AC Power Cord: Connect this plug to an AC outlet. If the outlet is controlled by a switch, make certain that it is in the ON position. ?Remote Control Output: Connect this jack to the infrared (IR) input jack of another compatible Harman Kardon remote controlled product to have the built-in Remote Sensor on the tuner provide IR signals to other compatible products. ?Remote Control Input: Connect the output of a remote infrared sensor, or the remote control output of another compatible Harman Kardon product, to this jack.This will enable the remote control to operate even when the front panel Remote Sensor on the tuner is blocked.This jack may also be used with compatible IR remote control-based automation systems. 29168_TU970II_ENG 03/07/06 11:03 Side 5 harman/kardon TU 970II/230 Service Manual Page 5 of 21 0 1 2 3 4 5 6 7 8 9 A 6 REMOTE CONTROL FUNCTIONS Remote Control Functions 0 2 4 6 78 9 A 5 3 1 Standby/Power On Numeric Keys Clear Button Info/RDS Button Auto Tuning Button Scroll Button Function/FM Mode Selector Band Selector Select Button Memory Button Standby/Power Off 0Standby/Power On: Press this button to turn on the TU 970 II. Note that the Power Indicator?next to the switch will turn blue when the unit is on. 1Numeric Keys:These buttons serve as a ten-button numeric keypad to enter tuner preset positions or to tune stations directly. 2Clear Button: Press this button to clear presets from your station list. 3Info/RDS Button: Pressing this button will change the content of the lower display line of the Information Display as well as signal error rate and software version. (See page 9 for more info). 4Auto Tune Button: In DAB mode, press this button to automatically scan all available stations. 5Scroll Buttons: Press Lto tune lower frequency stations and Kto tune higher frequency stations.When a station with a strong signal is tuned, the Information Display6 will read TUNED. Press again briefly to tune to the next frequency increment in Manual Tune Mode, or keep pressed for automatic search for the next station with a signal strong enough for acceptable reception in Auto Tune Mode.These buttons also control the parameters in the different menus, like the Control Ring9on the front panel. 6Function/FM Mode Selector: In DAB mode, pressing this button will activate station order, preset tune, Dynamic Rate Control or manual tune features. In FM mode, press this button to select the stereo or mono mode for FM tuning. In the stereo mode, the word STEREO will be shown in the Information Display6, and stereo reception will be provided when stations are transmitting stereo signals. In the mono mode, the left and right signals from stereo broadcasts will be mixed together and reproduced through all channels. Select MONO for better reception of weak signals. 7Band Selector: Press this button to change between the DAB, FM and AM frequency bands. 8Select: In FM or AM mode, press this button to select Auto Tune, Manual Tune or Preset Tune. 9Memory Button: Press this button to open the memory position that stores a preset location in the tuner. 99 DAB presets can be stored, as well as 30 FM and 30 AM presets. (See page 9 for more information on tuner presets.) AStandby/Power Off: Press this button to turn the unit off (to Standby). 29168_TU970II_ENG 03/07/06 11:03 Side 6 harman/kardonTU 970II/230 Service Manual Page 6 of 21 E X P L O D E D V I E W ( T U 970I I ) 10 1 2 3 4 5 6 7 8 9 12 14 15 11 13 17 18 21 19 24 25 26 28 23 22 30 27 31 32 33 20 29 S 1X 2 S 1X 5 S 1X 6 S 1X 4 S 2X 2 S 2 S 2X 3 X 5 S 6 X 4 S 6 S 3X 4 S 3X 4 S 4X 5 S 5 S 7X 4 X 4 X 4 X 4 S 8 16 34 35 O 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 Y O R N A M E N T , B A R ( D ) D E S C R I P T I O N B A D G E O 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 T I N D I C A T O R , P O WE R P C B ( L E D ) 11 10 8 7 9 5 6 1 2 N O . 3 4 C G L 1A 229 K G X 1A 344M B C 22 P A R T S N O . C G U 1A 324Z C A P , R O T A R Y WI N D O W, F I P K G B 1A 111X K G R 1A 327M B C 22 C G W1A 374R D H 43 C G L 1A 227 K G R 1A 326M B C 22 K G R 1A 325M B C 22 Q T Y 1 1 1 1 1 1 1 1 1 1 1 K N O B , P O WE R P C B ( F R O N T ) 12 13K B T 1A 918 M B C 22 1 1 C H D 1A 023 P A R T S N O . C T B 3+10G C T B 3+10G F Z S 1 N O . S 2 S 3 C T B 3+6J F Z C T W3+8 J S 5 S 4 S 6 S 7 C T B 3+6J D E S C R I P T I O N S C R E W S C R E W S C R E W Q T Y 17 6 8 S C R E W S C R E W S C R E W S C R E W, T R A N S 1 5 9 4 1 23 S U P P O R T , P C B C A B I N E T , T O P P 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 P K N O B , M E M O R Y F I P M O D U L E K B T 1A 919M B C 22 K B T 1A 920M B C 22 14 15K N O B , S E L E C T C M H 1A 226 C K C 1B 151S 46 16 17 18 19 21 20 22 1 1 2 1 3 1 1 1 1 T U N E R M O D U L E P C B ( M A I N ) 24 25 1 1 K G R 1A 328 M B C 22 C M D 1A 501 K H G 1A 050 C K F 1A 275Z 26 27 C U A 1A 240 31 30 29 28 C K L 1A 18 6H 43 C H A S S I S , B O T T O M P C B ( J A C K ) 1 1 F O O T C U S H I O N , F O O T P C B ( T R A N S ) P A N E L , R E A R1 4 4 132 33 P O WE R C O R D B U S H I N G , A C C O R D1 1 K H R 1A 028 C T B 3+8 J F C S C R E WS 8 C T S 3+8 J F C4 D A B M O D U L EH N V F S 2020V E N I C E H F L 16T 202D A 1E C O P 11666B C J A 2B 043Z A C N V M B 114M A 18 L 35 34 C M Z 1A 095 S H E E T , R O T A R Y 1 C M Z 1A 093F I L T E R , F I P1 harman/kardonTU 970II/230 Service Manual Page 7 of 21 POSPART NUMBERPART NAMECOMMENTS CHE154CLAMPER , ARM CQXTU970II/230INSTRUCTION MANUAL ASSY CARTTU970IIREMOCON , TRANSMITER ASSY CJS4M009XCORD, PINCORD, PIN CJS4N014ZCORD , PIN CJS9D002ZCORD , JACK(MONO) 1200MM CQX1A1145ZMANUAL, INSTRUCTION CGL1A229INDICATOR, ROTARY CGWTU970II/230FRONT PANEL ASSY CBT1A918MBG27KNOB, POWER CBT1A919MBG27KNOB, MEMORY CBT1A920MBG27KNOB, SELECT CGL1A227INDICATOR, POWER CGU1A324XWINDOW, FIP CGU1A324X-1WINDOW, FIP CGW1A374RDH43PANEL, FRONTTU970 CMZ1A093FILTER, FIPPVC 0.4T CMZ1A095SHEET, ROTARY CTB3+10GRSCREW CTW3+10GRSCREW CWC1C4A23B160BCABLE , CARD HFL16T202DA1EVFD , MODULE16T202DA1E FIP1KJP14TT152ZYPIN HEADER (2.54MM) CGX1A344MBG27CAP, ROTARY CHG1A113RUBBER CHR301CLAMPER BKC1C151S46SHEET , CABINET(296X560)ALKOR 40211 CUATU970II/230BOTTOM CHASSIS ASSY CHD1A023RSCREW , SPECIAL CMH1A226SUPPORT , PCB CNE1A009NUT, DABM3/8X32 CNVFS2022V131CMODULE , DUAL DABFS2022-0101-0005 CNVMB114MA18LTUNER MODULE(EUR) CNW1A038WASHER9.5X15 COP11923BPCB , ASSY CIP11923BPCB , AUTO ASSY CUP11923ZPCB , MAIN C101 CCEA1CH471TCAP , ELECT470UF 16V C104 CCFT1H223ZFCAP, CERAMIC22000UF 50V C201 CCEA1AH471TCAP , ELECT470UF 10V C202 CCFT1H223ZFCAP, CERAMIC22000UF 50V C203 CCEA1AH471TCAP , ELECT470UF 10V C204 CCFT1H223ZFCAP, CERAMIC22000UF 50V C205 CCEA1HH4R7TCAP , ELECT4.7UF 50V C206 CCCT1H220JCCAP , CERAMIC22UF 50V C207 CCFT1H223ZFCAP, CERAMIC22000UF 50V C208 CCEA1AH101TCAP , ELECT100UF 10V C209 CCEA1HH4R7TCAP , ELECT4.7UF 50V C210 CCFT1H223ZFCAP, CERAMIC22000UF 50V C211 CCEA1AH101TCAP , ELECT100UF 10V C212 CCEA1HH4R7TCAP , ELECT4.7UF 50V C213 CCCT1H220JCCAP , CERAMIC22UF 50V TU 970II/230 FM/AM/DAB TUNER harman/kardonTU 970II/230 Service Manual Page 8 of 21 POSPART NUMBERPART NAMECOMMENTS C214 CCFT1H223ZFCAP, CERAMIC22000UF 50V C215 CCEA1AH101TCAP , ELECT100UF 10V C216 CCEA1HH4R7TCAP , ELECT4.7UF 50V C217 CCEA1AH101TCAP , ELECT100UF 10V C218 CCFT1H223ZFCAP, CERAMIC22000UF 50V C219 CCEA1HH4R7TCAP , ELECT4.7UF 50V C220 CCE