HarmanKardon-AVR45-avr-sm维修电路原理图.pdf

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1、harman/kardon AVR45 AVR45 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ELECTROSTATICALLY SENSITIVE(ES)DEVICES.2 LEAKAGE TEST. 3 SPECIFICATIONS4 CONTROLS AND FUNCTIONS.6 REAR PANEL CONNECTIONS.8 SERVICE PROCEDURE.9 ALIGNMENT PROCEDURES.9 MAIN AMP IDLING CURRENT ADJUSTMENT10 ALIGNMENT AND TEST P

2、OINTS. 11 CIRCUIT DESCRIPTION .13 BLOCK DIAGRAM. 16 DISASSEMBLY PROCEDURES .17 GENERAL UNIT PARTS LIST.18 GENERAL UNIT EXPLODED VIEW.20 SERVICE BULLETIN HK9804.21 SERVICE BULLETIN HK9903.22 SERVICE BULLETIN HK2000-01.23 SERVICE BULLETIN HK2001-02.25 PC . BOARDS.27 ELECTRICAL PARTS LIST .32 IC BLOCK

3、DIAGRAMS .48 CPU BLOCK DIAGRAM.59 DISPLAY SEGMENTS.67 FLT PIN CONFIGURATION 68 SCHEMATIC DIAGRAMS.69 SCHEMATIC DIAGRAMS (RDS/SG).76 SEMICONDUCTOR PIN DIAGRAM85 WIRING DIAGRAM 86 PACKING MATERIAL AND PARTS LIST .87 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 8/2005 RadioF

4、ans.CN 收音机爱 好者资料库 Eachprecautioninthismanualshouldbefollowedduringservicing. Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with , use only the replacement parts designated, or parts with the same ratings or resist

5、ance, wattage, or voltage that are designated in the parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before retuming the product to the customer. Some semiconductor (solid state) devic

6、es can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components. The following techniques should be used to help re

7、duce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially availabl

8、e discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge b

9、uild-up or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical charges sufficient to damage ES devices. 5. Do not use

10、freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted togeth

11、er by conductive foam, aluminum foil or comparable conductive material.) 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Be sure no power is app

12、lied to the chassis or circuit, and observe all other safety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together or your clothes fabric or the lifting of your foot from a carpeted floor can generate static

13、electricity sufficient to damage an ES devices. CAUTION : 2 RadioFans.CN 收音机爱 好者资料库 1 Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal partsintheunit. 2. Be sure that any protective devices such as nonmetallic contro

14、l knobs, insulating fish- papers,cabinetbacks,adjustmentand compartment covers or shields, isolation resistor-capacitynetworks,mechanical insulators, etc. Which were removed for the servicingareproperlyre-installed. Before returning the unit to the user, perform the following safety checks : 3. Be s

15、ure that no shock hazard exists ; check for leakage currentusingSimpsonModel229LeakageTester,standard equipment item No. 21641, RCA Model WT540A or use alternate method as follows : Plug the power cord directly Into a 120 volt AC receptacle (do not use an Isolation Transformer for this test). Using

16、two clip leads, connect a 1500ohms,10wattResistorparalleledbya0.15uFcapacitor,inserieswithallexposedmetalcabinetpartsandaknownearthground,such as a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to measure the AC voltage drop across the resistor. (See diagram

17、) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal, cabinet,screwheads,knobsandcontrolshafts,escutcheon,etc.)andmeasuretheACvoltagedropacrosstheresistor.(Thistestshouldbe performedwiththe0.35voltRMSormoreisexcessiveandindicatesapotentialshoc

18、khazardwhichmustbecorrectedbeforereturningthe unittotheowner. 3 RadioFans.CN 收音机爱 好者资料库 Continuous Power Output RMS Output Power RMS Output Power Line level at pre-out Surround mode : BYPASS(STEREO) Input Signal : L ch (only) 200mV Master Volume :5dB Low pass crossover frequency Slope (Low Pass Filt

19、er) Input Sensitivify / Impedence VID1/VID2/VID3 Output Level / Impedance VID1/VID2/VID3 Frequency Response at-3dB Tuning Cover Range 100kHz Step for AVR-45 (STEREO MODE), Input : CD THD : 0.08%, 8 ohms Both Channel Driven(20Hz-20kHz) (SURROUND MODE) THD : 0.5%, 8 ohms, 1kHz THD : at 60W, 8 ohms, In

20、put : CD 20Hz 1kHz 20kHz IM Distortion at 70W, 8 ohms, Vol : Max. THD(0.5%, 8 ohms, 1kHz) All Channel Driven THD(0.5%, 8 ohms, 1kHz) All Channel Driven S/N Ratio(Input Shorted, IHF-A WTD) Delay : 20ms, Input Level : 200mV Frequency Response at-3dB 8 ohms, Dolby Pro Logic S/N Ratio(Input Level : 200m

21、V) Input Shorted, IHF-A WTD Frequency Respones at-3dB 8 ohms, Dolby Pro Logic Input Sensitivity for Rated Power Output(60W) CD/DVD/TAPE MONITOR VID1/VID2/VID3 S/N Ratio Input Shorted at 1 kHz 1W Output(WTD IHF-A) CD Tone Control Bass : 100Hz Treble : 10kHz 100Hz 1kHz 10kHz Frequency Response at-3dB

22、Channel Crosstalk Input Shorted by 1 K Ohms Mode : Stereo(1Watt) NominalLimit 5W 5W 0W 5W 65dB 100Hz-20kHz 150Hz-20kHz 50W 60dB 55W 65dB 100Hz-20kHz 150Hz-20kHz 50W 60dB 1Vp-p/75 DC-8 MHz ohm/1dB DC-6 MHz 70Hz cut off 24dB/octave 0W 0.08% 0.08% 0.08% 0.03% 0.03% 0.03% 0.08% 170230mV 170230mV 0.03% 2

23、00mV 200mV 10dB3dB 10dB3dB 10dB3dB 10dB3dB 10Hz-80kHz 82dB 10dB 10dB 10dB 10dB 63dB 63dB 62dB 10Hz-70kHz 55dB 55dB 45dB 87.50-108.00MHz 1Vp-p/75ohm/1dB 4 RadioFans.CN 收音机爱 好者资料库 17.2dbf 0dB 0dB 3.3dbf 0.5% 60dB .0dB .0dB 50B 39.2dbf 65dbf 2.5dB dB 350-650mV 65dbf Tuning Cover Range(MW) AVR-45 : 10kH

24、z/Step AVR-45RDS/SG : 9kHz Step Usable Sensitivity(MW, at 999 / 1000kHz) NominalLimit 520-1710kHz 522-1611kHz 500uV/m00uV/m Tuning Cover Range 50 kHz Step for AVR-45RDS/SGImage Rejection(at 999kHz) IF Rejection(at 999/1000kHz) AGC Figure of Merit(From 100mV/m at 999/1000kHz) Distortion(999/1000kHz,

25、30% MOD, 50mV/m Input) Frequency Response(999/1000Hz) At-3dB Selectivity(999/1000Hz) 9kHz/10kHz S/N Ratio(999/1000kHz, With Antenna Input 5mV/m) Overload Break-up at 999/1000kHz(THD 10%) Tape Output Level at 999/1000kHz(5mV/m Input) Mono Usable Sensitivity(75 ohms Input, 98MHz) Image Rejection(at 98

26、MHz) IF Rejection(at 90MHz) 46dB Queting Sensitivity(at 98MHz, 100% MOD.) Stereo Distortion(1kHz, 75kHz dev. At 98MHz, 71dbf Input) Mono S/N Ratio(500uV Input, 100% MOD. At 98MHz) Stereo Frequency Response(30Hz-15kHz) AVR-45 De-Emphasis : 75 AVR-45RDS/SG De-Emphasis : 50 AM Suppression at 98MHz Muti

27、ng Threshold(at 98MHz) Overload Break-up at 98 MHz Capture Ratio at 65dbf Stereo Separation(at 98MHz, 100% MOD, 500Input) IHF Band Pass Filter 1kHz Tape out Level(at 98MHz) 14.2dbf 80dB 90dB 39.2dbf 0.3% 65dB 0.5dB 2.0dB 50dB 31.2dbf 71dbf 2dB 40dB 500mV 71dbf 40dB 50dB 50dB 1.0% 100Hz-2.2kHz 30dB 4

28、5dB 1000mV/m 200mV 0dB 5dB 5dB .0% 150Hz-1.8kHz dB 40dB 00mV/m 160-240mV Power Consumption At Rated Power All Channel Driven Idling at Minimum Volume Control Power Supplies : USA/Canada(AVR-65) Europe(AVR-65RDS/SG) Dimension(W x H x D) Inches MM Weight(lbs/kgs) These specifications are service targe

29、t specs. specifications and components are subject to change without notice. Overall performance will be maintained or improved. AC120V, 60Hz AC230V, 50Hz 17.36.517.1 440165435 29/13.2 332W 72W 5 RadioFans.CN 收音机爱 好者资料库 Main Power Switch : NOTE : System Power Control : Power Indicator Power Indicato

30、r : Head Phone Jack : Press this button to apply power to the AVR-65. When the switch is pressed in the unit is placed in a Standby mode, as indicated by the amber LED. This button MUST be pressed in to operate the unit. To turn the unit off and prevent the use of the remote control, this switch sho

31、uld be pressed until it pops out from the panel so that the word OFF may be read at the top of the switch. In normal operation this switch is left in the ON position. When the Main Power Switch 1 is ON, press this button to turn on the AVR-65 ; press it again to turn the unit off. Note that the surr

32、ounding the switchwill turn green when the unit is on. 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 green. This jack may be used to listen to the AVR-65s output through

33、a pair of headphones. Be certain that the headphones have a standard 1/4 stereo phone plug. Bass Control : Treble Control : Balance Control : NOTE : Video 3 Inputs : T-Mon Selector : Tape Monitor Turn this control to modify the lower frequency output of the left / right channels by as much as +/-10d

34、B. Set this control to a suitable position for your taste and room acoustics. Turn this control to modify the high frequency output of the left / right channels by as much as +/-10dB. Set this control to a suitable position for your taste and room acoustics. Turn this control to change the relative

35、volume for the front left / right channels. For proper operation of the surround modes this control should be at the midpoint, or 12 oclock position. These audio / video inputs may be used for temporary connection of video games, camcorder, digital still cameras or portable audio products. To select

36、 a source connected to these jacks, press the Video 3 Input Selector. Press this button to select the device connected to thejacks (24) as the listening source. The previously selected source will continue to show in the information Display CD : DVD : Video Input Selectors : Audio/Video 6-Channel di

37、rector Selector : 6 Ch Direct AM/FM : Tuning button : , and the red LED above the button will illuminate to remind you that you are listening to the tape monitor output. Press this button to select the device connected to the CD Input jacks (6) as the listening source. Press this button to select th

38、e device connected to the DVD play jacks (7) as the listening and viewing source. Press one of these buttons to select a source connected to the rear panelinputs (3), (16), or the front panel Press this button to select the output of an optional, external 6-channel decoder connected to the inputs (5

39、) as the listening source. Press this button to select the tuner as the AVR-65s input source. When it is first pressed the last station tuned will be heard. Press it again to change between AM and FM bands. Press the left side of the button to tune lower frequency station and the right side of the b

40、utton to tune higher frequency Audio/Video input. stations. When a station with a strong signal is tuned, theindicatorwill illuminate in the Information Display. A brief(1/2 second) press of the button will manually tune to the next frequency increment, while pressing and holding the button for a lo

41、ng period will automatically tune to the next station with a signal strong enough for acceptable reception. Press this button to automatically scan through the station that have been programmed in the AVR-65s memory. The tuner will play five seconds of each station before moving to the next preset s

42、tation. To stop the scan when the desired station is heard, press the button again. Press this button to select stations that have been entered into the preset memory. Press this button to select the auto or mono mode for FM tuning. In the AUTO mode,indicator will illuminate in the information displ

43、ay, and when stations are transmitting stereo signals, the stereo reception will be provided and indicator will also be illuminated in the information display. In the MONO mode the left and right signals from stereo broadcasts will be mixed together and reproduced through all channels. Select MONO f

44、or better reception of weak signals. Press this button to select the Dolby Digital surround mode when listening to a program that carries the Dolby Digital surround mode when listening to a TUNED Preset Scan : Preset Stations Selector : TUN.MODE/RDS : AUTO Stereo Dolby Digital Selector : CONTROLS AN

45、D FUNCTIONS Front Panel program that carries the Dolby Digital information. Press this button to select the Dolby Pro Logic surround mode when listening to an analog or digital(PCM) program that is encoded with surround-sound information. Press this button to select the Dolby 3 Stereo listening mode

46、. This mode is used primarily when a program has surround information when a center channel speaker, but no surround speakers, is installed. Press one of these buttons to select the analog surround modes. These modes may be used with any analog program source to create a pleasing surround effect. pr

47、ess this button to select DTS decoding when listening to an audio or video program that is encoded with DTS data.(See page 25 for more information on surround modes and digital audio.) Press this button to turn off all surround processing, and to listen to a program in traditional stereo from the le

48、ft front and right front speakers only. Press this button to momentarily silence the speaker output of the AVR-65. Turn the knob clockwise to increase volume, counter clockwise to decrease the volume. Dolby Pro Logic Selector : Dolby 3 Stereo Selector : Surround Mode Selectors : DTS Selector : Surro

49、und Off : Mute : Volume Control : Delay : Digital Input Selector : OpticalCoaxial Digital Set Button : Multi-room : Speaker Selector Button : Selector Buttons : Information Display : Remote Sensor Window : Press this button to begin the sequence of steps required to enter delay time settings. When playing a source that has a digital output, press this button to select between the(19) and (18)inputs. When making choices during the setup and configuration process, press this button to enter the desired setting, as shown in the info