HarmanKardon-TU980.230-tun-sm维修电路原理图.pdf

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1、 harman/kardon Service Manual TU 980/230 FM/AM/Dual-band DAB Tuner with RDS CONTENTS FRONT PANEL CONTROLS 2 EXPLODED VIEW AND PARTS 13 REAR PANEL CONNECTIONS 3 ELECTRICAL PARTS LIST 14 REMOTE CONTROL FUNCTIONS 4 SEMICONDUCTOR FUNCTION/PINOUTS 21 TROUBLESHOOTING GUIDE 5 PCB DRAWING 29 TECHNICAL SPECI

2、FICATIONS 6 BLOCK DIAGRAM 30 PACKAGE LIST AND PARTS 11 WIRING DIAGRAM 31 DISASSEMBLY 12 SCHEMATIC DIAGRAM 32 Released EU2010 harman/kardon, Inc. Rev 0, 09/2010 250 Crossways Park Dr. Woodbury, New York, 11797 RadioFans.CN ?Power Indicator:This LED will illuminate in amber when the unit is in the Sta

3、ndby 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 980; press it again to turn the unit off (to Standby). Note that the Power Indi- cator?next to the switch will turn blue

4、 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

5、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 rep

6、roduced 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 wil

7、l 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

8、panel display. The first press of the button will dim the displays to one-half normal brightness; the next press will turn off the display. Press the button again to turn the displays back to normal brightness. The display will return to normal brightness the next time the unit is turned on. 8Memory

9、 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

10、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 Mod

11、e. 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 signal

12、s 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 But

13、ton Auto Tune Button Information Display Dimmer Memory Control Ring Select Remote Control Sensor RadioFans.CN 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 Contro

14、l Output Remote Control Input Software Update and Reset Button ?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 th

15、e 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 con

16、nections 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-

17、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 interconnecti

18、on 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 in

19、frared (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 compati

20、ble 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. ?Software Update and Reset Button (for Service Stations Only

21、): This specialized connector may be used with your personal com- puter in case Harman Kardon offers a software upgrade for the tuner at some time in the future. The Reset Button is only used during a software upgrade. A standard processor reset is performed by pressing and holding the front- panel

22、Function/FM Mode Button. ENGLISH RadioFans.CN 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

23、 Standby/Power Off 0Standby/Power On: Press this button to turn on the TU 980. 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 Bu

24、tton: 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 th

25、is 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

26、 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,

27、 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 pro

28、vided 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 A

29、M 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

30、 more information on tuner presets.) AStandby/Power Off: Press this button to turn the unit off (to Standby). harman/kardon TU 980 Service Manual Page 4 of 32 12 TROUBLESHOOTING GUIDE Troubleshooting Guide This unit is designed for trouble-free operation. Most problems users encounter are due to ope

31、rating 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

32、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 ap

33、pliances. 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 y

34、ou are listening to it. Try to retune to this station, using the Autotune procedure. harman/kardon TU 980 Service Manual Page 5 of 32 TECHNICAL SPECIFICATIONS 13 Technical Specifications FM Section Frequency Range87.50 MHz to 108.00 MHz (50 kHz steps) Signal-to-Noise Ratio65 dB (Mono) 60 dB (Stereo)

35、 Presets30 Section Frequency Range522 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

36、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 Requirement220-230 V AC, 50/60 Hz Power Consumption11 W 3 W (standby) Dimension (Max) Width442

37、 mm Height63 mm Depth334 mm (350 mm with DAB antenna) 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 Revolutio

38、n are registered trademarks of Harman Kardon, Incorporated ENGLISH harman/kardonTU 980 Service Manual Page 6 of 32 ELECTRICAL SPECIFICATION(BAND3 DAB)ELECTRICAL SPECIFICATION(BAND3 DAB) PJT PJT SAMPLING RATE : 48kHzPAGE:1/4 MODEL : TU 980 STANDARD INPUT : -60dBm DATE : AUDIO SIGNAL(L 14 leads (300 m

39、il)SOT27-1 74HC4066SO14plastic small outline package; 14 leads; body width 3.9 mmSOT108-1 74HC4066SSOP14plastic shrink small outline package; 14 leads; body width 5.3 mmSOT337-1 74HC4066TSSOP14plastic thin shrink small outline package; 14 leads; body width 4.4 mmSOT402-1 74HCT4066DIP14plastic dual i

40、n-line package; 14 leads (300 mil)SOT27-1 74HCT4066SO14plastic small outline package; 14 leads; body width 3.9 mmSOT108-1 74HCT4066SSOP14plastic shrink small outline package; 14 leads; body width 5.3 mmSOT337-1 74HCT4066TSSOP14plastic thin shrink small outline package; 14 leads; body width 4.4 mmSOT

41、402-1 PIN NO.SYMBOLNAME AND FUNCTION 1, 4, 8, 111Y to 4Yindependent inputs/outputs 2, 3, 9, 101Z to 4Zindependent inputs/outputs 7GNDground (0 V) 13, 5, 6, 121E to 4Eenable inputs (active HIGH) 14VCCpositive supply voltage Fig.1 Pin configuration. handbook, halfpage MGR253 4066 1 2 3 4 5 6 78 14 13

42、12 11 10 9 1Y 1Z 2Z 2Y 2E 3E GND3Y 3Z 4Z 4Y 4E 1E VCC Fig.2 Logic symbol. handbook, halfpage MGR254 13 11Y 21Z 42Y 32Z 83Y 93Z 114Y 104Z 1E 52E 63E 124E harman/kardonTU 980 Service Manual Page 22 of 32 harman/kardonTU 980 Service Manual Page 23 of 32 FEATURES 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1A 1Y 2

43、A 2Y 3A 3Y GND VCC 6A 6Y 5A 5Y 4A 4Y SN54LVC04A . . . J OR W PACKAGE SN74LVC04A . . . D, DB, DGV, NS, OR PW PACKAGE (TOP VIEW) 32120 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 6Y NC 5A NC 5Y 2A NC 2Y NC 3A 1Y 1A NC 4Y 4A V 6A 3Y GND NC SN54LVC04A . . . FK PACKAGE (TOP VIEW) CC NC - No internal connec

44、tion SN74LVC04A . . . RGY PACKAGE (TOP VIEW) 114 78 2 3 4 5 6 13 12 11 10 9 6A 6Y 5A 5Y 4A 1Y 2A 2Y 3A 3Y 1A 4Y V GND CC DESCRIPTION/ORDERING INFORMATION SN54LVC04A, SN74LVC04A HEX INVERTERS SCAS281RJANUARY 1993REVISED JULY 2005 Operate From 1.65 V to 3.6 VLatch-Up Performance Exceeds 250 mA Per JES

45、D 17 Specified From 40C to 85C, 40C to 125C, and 55C to 125CESD Protection Exceeds JESD 22 Inputs Accept Voltages to 5.5 V 2000-V Human-Body Model (A114-A) Max tpdof 4.5 ns at 3.3 V 200-V Machine Model (A115-A) Typical VOLP(Output Ground Bounce) 1000-V Charged-Device Model (C101) 2 V at VCC= 3.3 V,

46、TA= 25C The SN54LVC04A hex inverter contains six independent inverters designed for 2.7-V to 3.6-V VCCoperation, and the SN74LVC04A hex inverter contains six independent inverters designed for 1.65-V to 3.6-V VCCoperation. The LVC04A devices perform the Boolean function Y = A. Inputs can be driven f

47、rom either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and

48、disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright 19932005, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas On products compliant to MIL-PRF-38535, all parameters are Instru

49、ments standard warranty. Production processing does not tested unless otherwise noted. On all other products, production necessarily include testing of all parameters. processing does not necessarily include testing of all parameters. harman/kardonTU 980 Service Manual Page 24 of 32 harman/kardonTU 980 Service Manual Page 25 of 32 IC71 FUNCTION (MI-COM S3F84BB)IC71 FUNCTION (MI-COM S3F84BB) Pin No.PIN NAMEI/ODESCRI