HarmanKardon-AVR745-avr-sm维修电路原理图.pdf

《HarmanKardon-AVR745-avr-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《HarmanKardon-AVR745-avr-sm维修电路原理图.pdf（146页珍藏版）》请在收音机爱好者资料库上搜索。

1、 harman/kardon AVR745 AVR745 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 PACKAGE.5 PACKAGE PARTS LIST.6 FRONT PANEL CONTROLS.7 REAR PANEL CONNECTIONS.10 REMOTE CONTROL FUNCTIONS.13 INSTALLATION/CONNECTIONS17 OPERATION21 TROUBLESHOOTING GU

2、IDE.30 PROCESSOR RESET.30 UNIT EXPLODED VIEW31 EXPLODED VIEW PARTS LIST.32 IDLE CURRENT ADJUST.34 BLOCK DIAGRAM(S)37 SEMICONDUCTOR PINOUTS.40 PCB DRAWINGS.91 ELECTRICAL PARTS LIST.104 SCHEMATICS.129 WIRING DIAGRAM.146 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 4/2007 ww

3、w.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.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 re

4、placement parts designated, or parts with the same ratings or resistance, 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

5、 the product to the customer. Some semiconductor (solid state) devices 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

6、 chip components. The following techniques should be used to help reduce 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

7、earth ground. Alternatively, obtain and wear a commercially available 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 conduct

8、ive surface such as aluminum foil, to prevent electrostatic charge build-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 generat

9、e electrical charges sufficient to damage ES devices. 5. Do not use 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 replac

10、ement ES devices are packaged with leads electrically shorted together 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 assem

11、bly into which the device will be installed. Be sure no power is applied 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

12、 the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices. CAUTION : AVR745 harman/kardonharman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.CN 收音机爱 好者资料库 2 SAFETY PRECAUTIONS The following check should be p

13、erformed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester between the earth ground and all exposed metal parts of the appliance (input/output t

14、erminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed o.5mA. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOC

15、K HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. Device under test Test all exposed metal surfaces Also test with plug reversed (Using AC adapter plug as required) AC Leakage Test Leakage current tester Reading should not be above 0.5mA Earth ground AVR745 harman/kardon

16、harman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.CN 收音机爱 好者资料库 AVR 745 TECHNICAL SPECIFICATIONS 58TECHNICAL SPECIFICATIONS Audio Section Stereo Mode Continuous Average Power (FTC) 100 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms Sev

17、en-Channel Surround Modes Power per Individual Channel Front L 1,405W at rated power output (7 channels driven) DimensionsProductShipping Width17-5/16 inches (440mm)20-1/16 inches (510mm) Height6-1/2 inches (165mm)10 inches (254mm) Depth17-1/16 inches (435mm)22-3/16 inches (565mm) Weight44 lb (19.9k

18、g)51 lb (23.1kg) 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, Harman International and Logic 7 are registered trademarks of Harman International I

19、ndustries, Incorporated. and are trademarks of Harman International Industries, Incorporated. Dolby, Pro Logic and the Double-D symbol are registered trademarks of Dolby Laboratories. Manufactured under license from Dolby Laboratories. DTS, DTS Surround, DTS-ES, DTS 96/24 and DTS Neo:6 are registere

20、d trademarks of DTS, Inc. A-BUS and A-BUS/READYare registered trademarks of Leisure Tech Electronics Pty Ltd Australia. SACD is a trademark of Sony Corporation. iPod is a registered trademark of Apple Computer, Inc. DLP and Texas Instruments are trademarks of Texas Instruments. Faroudja and DCDi by

21、Faroudja are trademarks of Genesis Microchip, Inc. HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC). HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing, LLC. Microsoft,Windows and Windows Media are regis

22、tered trademarks of Microsoft Corporation in the United States and other countries. XM-Ready is a registered trademark of XM Satellite Radio, Inc. The BridgeTM Supplied Accessories The AVR 745 is supplied with the following accessory items. Please note that they are packed in different boxes, so it

23、is important to check each individual box before reporting missing items. If any item is missing, please contact Harman Kardon customer service at . TC 30 remote control TC 30 software CD-ROM microphone Battery for the TC 30 TC 30 installation guide Extender rod for microphone USB cable for the TC 3

24、0 ZR 10 remote control AM loop antenna TC 30 charging cradle Two AAA batteries for ZR 10 FM wire antenna Charger for the TC 30 AC power cord Please register your product on our Web site at . NOTE:Youll need the serial number of your AVR.At the same time, you can choose to be notified about our new p

25、roducts and/or special promotions. AVR 745 OM 5/15/06 5:00 PM Page 58 AVR745 harman/kardonharman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.CN 收音机爱 好者资料库 AVR745 harman/kardonharman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.

26、CN 收音机爱 好者资料库 LEGEND FOR AVR745 PACKAGE PAGE AVR745 US Packing Part List Item #Part NumberDescriptionQty 1LABEL BARCODE AVR745US2 2ZKD2704HA00-RBOX CARTON AVR745US1 3ZKD2701HA00-ROWNERS MANUAL AVR745US1 4ZQD1201HAWH-RCUSHION POLY EPS RIGHT1 5FILM SHEET PE 920 X 10001 6H03-WAUSA2103BK-RPOWER CORD WS-

27、004C+002E SJT#14*2C L=2M1 7ZQD1202HAWH-RCUSHION POLY EPS LEFT 1 8ZKD2802HA04-RAVR745 TOTAL ACCESSORY BOX1 9H03-RYD2701HB00-RREMOCON W/ ACCESSORY BOX AVR745US1 10ZBP00122051-RBAG PE 330 X245 T0.051 11ZKD2716HA00-RQUICK SETUP GUIDE AVR7451 12ZKC1214HA00-RLABEL SAFETY LEAFLET1 13ZKC1113HA00-RCARD WARRA

28、NTY1 14ZKD1263HA00-RBROCHURE AVR US1 15ZKC1263HA00-R-0INSERT RS232 NOTE PAPER1 16H03-ZPD1212INBK-RMICROPHONE ASSY EXTENSION PIECE1 17BOX ANTENNA1 18ZBP00161851-RBAG PE 160X180MM1 19H03-WAB01200203-RANTENNA WIRE 75 T15011N-11 20H03-ATALF039ABK-RANTENNA WIRE ANTENNA LOOP-3001 21ZBP00020350-RPOLYBAG BA

29、TTERY1 22BATTERY ALKALINE 1.5V AAA2 23ZKD2802HA03-RBOXZONE I1 REMOTE CONTROLLER1 24H03-RYD2702HA00-RREMOCON ZONE 2 AVR7451 25ZKD2802HA02-RBOX MIC1 26H03-MCD12TWBKNN-RMICROPHONE ASSY1 AVR745 harman/kardonharman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.CN 收音机爱 好

30、者资料库 FRONT-PANEL CONTROLS 1 Standby/On Switch 2 Surround Mode Group Selector 3 Surround Mode Selector 4 Tuning Selector 5 Tuner Band Selector 6 Preset Station Selector 7 Input Source Selector 8 Tuning Mode Selector 9 Front-Panel Door ) Volume Control ! Input Indicators Speaker/Channel Input Indicato

31、rs # Upper Display Line $ Lower Display Line % Surround Mode Indicators Remote Sensor Window FRONT-PANEL CONTROLS FRONT-PANEL CONTROLS5 5 The following controls and indicators are available on the AVR 745s front panel: The following controls and jacks are located behind the front-panel door.To open

32、the door, place the edge of a finger on the left or right edge of the panel and gently swing the door down toward you. A Main Power Switch B Headphone Jack C Tone Mode Button D Speaker Selector Button E Channel Adjust Selector F Digital Input Selector G Delay Adjust Selector H / Buttons I Set Button

33、 J EzSet/EQII Microphone Jack K Optical 4 Digital Input L Input/Output Status Indicators M Coaxial 4 Digital Jack N Video 4 Input/Output Jacks 1 Standby/On Switch: When the Main Power Switch A is “ON,” press this button to turn on the AVR 745; press it again to turn the unit off. Note that the illum

34、ination surrounding the switch will turn blue when the unit is on, or in the Multiroom mode. 2 Surround Mode Group Selector: Press this but- ton to select the top-level group of surround modes. Each press of the button will select one of the sur- round mode categories. Once the button is pressed so

35、that the name of the desired surround mode category appears in the on-screen display and in the Lower Display Line $, press the Surround Mode Selector 3 to cycle through the individual modes available. For example, press this button to select Dolby modes, and then press the Surround Mode Selector 3

36、to choose from the various mode options. 3 Surround Mode Selector: Press this button to select from among the available surround mode options for the surround mode category selected. The specific modes will vary based on the number of speakers available, the surround mode category and whether the in

37、put source is digital or analog. For exam- ple, press the Surround Mode Group Selector 2 to select a category such as Dolby or Logic 7, and then press this button to see the specific mode choices that are available. For more information on mode selection, see pages 40 42. NOTE: To make it easier to

38、follow the instructions that refer to this illustration, a larger copy may be downloaded from the Product Support section for this product at . 2 4 5 6 7 9 ! # % 3 8 A B D E F G H H I J K L L N M ) $ 1 C AVR 745 XMFMAM USB DMP TAPE 8CH 6CH DVD DIGITAL PRO LOGIC IIx HEADPHONE VIRTUAL SPEAKER 57CH. ST

39、EREO EQ 1 2 3 DIRECT DSP SURR. OFF CDMI HDMI VID 34 VID 12 AVR 745 OM 5/15/06 5:00 PM Page 5 AVR745 harman/kardonharman/kardon www.freeservicemanuals.infoIts Free www.freeservicemanuals.info RadioFans.CN 收音机爱 好者资料库 FRONT-PANEL CONTROLS 6 FRONT-PANEL CONTROLS 4 Tuning Selector: Press the left side of

40、 the button to tune lower-frequency stations and the right side of the button to tune higher-frequency stations.When the tuner is in the MANUAL/MONO mode, each tap of the Selector will increase or decrease the frequency by one increment.When the tuner receives a signal strong enough for adequate rec

41、eption, MANUAL TUNED will appear in the Lower Display Line $ and in the on-screen display.When the tuner is in the AUTO/STEREO mode, press the button once, and the tuner will scan for a station with acceptable signal strength.When the next higher- or lower-frequency station is tuned, the frequency s

42、can will stop and the Lower Display Line $ and the on-screen display will indicate AUTO TUNED.When an FM stereo station is tuned, the display will read AUTO ST TUNED. See page 45 for more information on using the tuner.When an XM-Ready module is connected and activated, and when there is sufficient

43、signal strength for the XM system to operate, pressing this button will change the XM Radio channel. 5 Tuner Band Selector: Pressing this button will automatically switch the AVR 745 to the Tuner mode. Pressing it again will select the AM or FM frequency band, or XM Radio. (See page 45 for more info

44、rma- tion on the tuner.) 6 Preset Station Selector: Press this button to scroll up or down through the list of stations that have been entered into the preset memory. (See page 46 for more information on tuner programming.) 7 Input Source Selector: Press this button to change the input by scrolling

45、up or down through the list of input sources. 8 Tuning Mode Selector: Press this button to select Auto or Manual tuning.When the button is pressed so that AUTO/STEREO appears in the Upper Display Line #, the tuner will search for the next station with an acceptable signal when the Tuning Selector 4i

46、s pressed.When the button is pressed so that MANUAL/MONO appears in the Upper Display Line #, each press of the Tuning Selector 4will increase the frequency. (See pages 4546 for more information on using the tuner.) This button may also be used to switch between Stereo and Mono modes for FM radio re

47、ception.When weak reception is encountered, select the Manual/Mono tuning mode. Press and hold again to switch back to Stereo mode. (See pages 4546 for more information on using the tuner.) When an XM Connect it sim- ply indicates that the video display is not compatible. HDMI Input Connections The

48、different “Version” levels of HDMI define which type of audio signals it is compatible with. Based on the lowest level of HDMI among your sources, the connections to the AVR should be made as follows: HDMI 1.0 sources carry digital video and multi- channel or 2-channel PCM audio signals only. Connec

49、t the HDMI output of a 1.0 source to either of the HDMI Inputs N on the AVR. If the product is a DVD-Audio player or other source that has mul- tichannel analog audio outputs, connect them to the 8-Channel Direct Inputs f.With an HDMI 1.0 source, particularly a DVD player, make certain that the menus in the source device are set to “Bitstream Out” or “Original” so that 5.1 digital audio is available