HarmanKardon-AVR354-avr-sm1维修电路原理图.pdf

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1、 harman/kardon AVR354 AVR354 7 X 75W 7.1 CHANNEL A/V RECEIVER SERVICE MANUAL CONTENTS ESD WARNING.2 LEAKAGE TESTING.3 BASIC SPECIFICATIONS.4 PACKAGING.5 FRONT PANEL CONTROLS.6 REAR PANEL CONNECTIONS.8 REMOTE CONTROL FUNCTIONS.11 CONNECTIONS.14 OPERATION.28 TROUBLESHOOTING GUIDE.33 PROCESSOR RESET.34

2、 DISASSEMBLY35 UNIT EXPLODED VIEW.36 EXPLODED VIEW PARTS LIST37 AMP BIAS ADJUSTMENT.38 BLOCK DIAGRAM.39 ELECTRICAL PARTS LIST.40 PCB DRAWINGS.87 SEMICONDUCTOR PINOUTS.95 SCHEMATICS.194 WIRING DIAGRAM.208 harman/kardon, Inc. 250 Crossways Park Dr. Released 2008 Woodbury, New York 11797 Rev0 5/2008 Di

3、scontinued XXXX 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 replacement parts designated, or parts with the

4、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 the product to the customer. Some semiconduct

5、or (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 chip components. The following techniques sho

6、uld 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 earth ground. Alternatively, obtain and wear a

7、 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 conductive surface such as aluminum foil, to prevent

8、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 generate electrical charges sufficient to damage ES d

9、evices. 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 replacement ES devices are packaged with leads elect

10、rically 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 assembly into which the device will be installed. B

11、e 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 the lifting of your foot from a carpeted floo

12、r can generate static electricity sufficient to damage an ES devices. CAUTION : AVR354 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 2 SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Measure le

13、akage 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 terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly in

14、to 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 SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. Device under test Test all expo

15、sed 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 3 AVR354 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 AVR 354 TECHNICAL SPECIFICATIONS Audio Section Stereo Mode Continuous

16、Average Power (FTC) 75 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms Seven-Channel Surround Modes Power per Individual Channel Front L the AVR 354 will automatically transcode analog video signals to the HDMI format, upscaling to as high as 1080p. Analog 15:Connect the le

17、ft and right analog audio outputs of a source device to any of these inputs.These inputs are assignable, which means they may be paired with any video inputs, as explained in subsequent sections of this manual. NOTES: The Analog 3 through 5 connectors physically line up below the Video 1 through 3 (

18、composite and S-video) connectors. For convenience,consider using Analog 3 with Video 1,Analog 4 with Video 2 and Analog 5 with Video 3, if appropriate for your system. AVR354 OM.qxd 4/4/08 4:45 PM Page 10 8 AVR354 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 FM Antenna XM Antenna AM Antenna S

19、-Video 2 Output Composite 2 Output Composite 1, 2 and 3 S-Video 1, 2 and 3 Video Monitor Outputs HDMI 1, 2 and 3 AC Power Input Component 1, 2 and 3The Bridge II HDMI Monitor Output Component Video Monitor Outputs Subwoofer Output Preamp Outputs Front Speaker Outputs Surround Speaker Outputs 6-/8- C

20、hannel Inputs Surround Back/Zone 2 Speaker Outputs Center Speaker Outputs Switched AC Accessory Outlet RS-232 Reset RS-232 Serial Port Coaxial Digital Audio Output Coaxial 1 and 2 Digital Audio Optical 1, 2 and 3 Digital Audio Analog 1-5 Inputs Carrier IR Output Zone 2 IR Input Remote IR Input Remot

21、e IR Output Analog 2 Outputs Zone 2 Audio Outputs Analog 4 Outputs RS-232 Mode NOTE: To make it easier to follow the instructions throughout the manual that refer to this illustration, a copy of this page may be downloaded from the Product Support section at .All connectors are inputs except as indi

22、cated. AVR354 OM.qxd 4/4/08 4:45 PM Page 11 9 AVR354 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 12 REAR-PANEL CONNECTIONS The Analog 1 and 2 connectors dont physically line up with any analog video inputs. Consider using them for audio-only devices, such as a CD player or cassette tape deck.

23、 The Analog 2 and 4 inputs are each associated with a set of outputs. Consider using the Analog 2 connectors for an audio recorder, and the Analog 4 connectors for a video recorder (along with the Video 2 connectors). You may optionally connect a source to both an analog and digital audio input.This

24、 is useful for making recordings, for multizone applications or simply as a backup. Analog 2 and 4 Outputs:Connect either of these analog audio outputs to the analog audio inputs of a recording device.A signal is available at these outputs whenever an analog audio source is playing. However, the AVR

25、 354 does not convert digital audio sources to analog for recording. Coaxial 1/2 and Optical 1/2/3 Digital Audio Inputs:If a source has a compatible digital audio output, and if you are not using an HDMI connection for audio for the device, connect it to one of these jacks to hear digital audio form

26、ats, such as Dolby Digital, DTS and linear PCM. Use only one type of digital audio connection for each source. Coaxial Digital Audio Output:If a source is also an audio recorder, connect a coaxial digital audio output to the recorders input for improved recording quality. Only PCM digital audio sign

27、als are available for recording. The Bridge II Input:Connect the included Harman Kardon to this input for use with your iPod, iPod touch or iPhone (none of which are included). Make sure the receiver is turned off (in Standby mode) when connecting The Bridge II. 6-/8-Channel Inputs:Connect the multi

28、channel analog audio outputs of a DVD-Audio, SACD, Blu-ray Discor HD-DVDplayer (or any other external decoder) to these jacks to enjoy these formats. NOTE: When the multichannel player has an onboard digital decoder, it is not necessary to connect it to the 6-/8-Channel Analog Audio Inputs. Only a d

29、igital audio connection (HDMI, coaxial or optical) is needed. Zone 2 Audio Outputs:Connect these jacks to an external amplifier to power the speakers in the remote zone of a multizone system.When these jacks are used, it is possible to have a full 7.1-channel system in the main listening room at the

30、 same time the multizone system is in use. Component Video 1, 2 and 3 Inputs:If a video source (e.g., DVD player or HDTV tuner) has analog component video (Y/Pb/Pr) capability, and if you are not using an HDMI connection for the device, then connect the component video outputs of the source to one o

31、f the sets of component video inputs. Do not make any other video connec- tions to that source. Component Video Monitor Outputs:If you are using one of the Component Video Inputs and your television or video display is component-video-capable, and if you are not connecting the HDMI Output to your di

32、splay, connect these jacks to the corresponding inputs on your video display. NOTES: Due to copy-protection restrictions, there is no output at the Component Video Monitor Outputs for copy-protected sources. Composite and S-video signals are upscaled to as high as 1080i and available at these output

33、s. If your video displays best connection is component video, it is the only video connection required from the AVR to the display. RS-232 Serial Port:This specialized connector may be used with your personal computer in case we offer a software upgrade for the receiver at some time in the future. R

34、S-232 Mode:Leave this switch popped out in the Operate position unless the AVR 354 is being upgraded. RS-232 Reset:This switch is only used during a software upgrade. A standard processor reset is performed by pressing and holding the front-panel OK Button. Switched AC Accessory Outlet:You may plug

35、the AC power cord of one source device into this outlet, and it will turn on whenever you turn on the receiver. Do not use a source that consumes more than 50 watts of power. AC Power Input:After you have made all other connections, plug the AC power cord into this receptacle and into an unswitched

36、wall outlet. AVR354 OM.qxd 4/4/08 4:45 PM Page 12 10 AVR354 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 MAIN REMOTE CONTROL FUNCTIONS The AVR 354 remote is capable of controlling 7devices, including the AVR itself and an iPod or iPhone docked in the included The Bridge II. During the installa

37、tion process, you may program the codes for each of your source components into the remote. Each time you wish to use the codes for any component, first press its Selector button.This changes the button functions to the appropriate codes. Each Source Selector has been preprogrammed to control certai

38、n types of components, with only the codes specific to each brand and model changing, depending on which product code is programmed.The AUX Source Selector may be used for any of five device types: a CD player, an HDTV set-top box, a PVD recorder used with cable or satellite televi- sion, a TiVoset-

39、top box or a VCR.The device mode will depend on the product code programmed into the AUX Source Selector as described in the Initial Setup section. CD players use codes beginning with a 0, 1 or 2;VCRs use codes beginning with a 3 or 4; HDTV set-top boxes use codes beginning with a 6; PVDs use codes

40、beginning with a 7 and TiVo set-top boxes use codes beginning with an 8. The remote automatically switches to the correct device mode, and it will operate the device as described in the function list in Table A13 in the appendix. Similarly, the CBL/SAT Source Selector automatically selects cable or

41、satellite television operation depending on the first digit of the product code: 0, 1 or 2 for cable and 3 or 4 for satellite boxes. IMPORTANT NOTE: All of the AVR 354s audio and video inputs are independently assignable.As explained in the Initial Setup section, it is necessary to set up each sourc

42、e, which includes selecting the inputs to which the device is physically connected.Any device may be connected to any compatible input and given any name (e.g. DVD or Game).The Source Selectors device types may be changed. For example, the TV Source Selector may be reprogrammed to operate a DVD play

43、er. Most of the buttons on the remote have dedicated functions, although the precise codes transmitted will vary depending on which source device has been selected for operation. Due to the wide variety of functions unique to various source devices,we have included only a few of the most- often used

44、 functions on the remote, including alphanumeric keys, transport controls, television-channel control, menu access and power on and off. Please refer to the descriptions below for more specific information. Some buttons are only used to operate the AVR, and their functions are available at any time,

45、 even if the remote has been switched to another devices mode:AVR Power On and Off,Audio Effects,Video Modes, Surround Modes,Volume, Mute and Sleep Settings. Press the AVR Settings button near the bottom of the remote to return it to AVR mode. Any given button may have different functions, depending

46、 on which component is being controlled. Some buttons are labeled with these functions. For example, the Page Up/Down Buttons are labeled for use as Channel Up/Down Buttons when controlling a television or cable box. See Table A13 in the appendix for listings of the different functions for each type

47、 of component. IR Transmitter Lens:As buttons are pressed on the remote, infrared codes are emitted through this lens. Make sure it is pointing toward the component being operated. AVR Power On Button:Press this button to turn on the AVR.The Master Power Switch on the AVR 354s front panel must first

48、 have been switched on. Device Power Off Button:When the remote has been switched to a devices mode by pressing its Source Selector, press this button to turn off the device. Device Power On Button:When the remote has been switched to a devices mode by pressing its Source Selector, press this button

49、 to turn on the device. Mute Button:Press this button to mute the AVR 354s speaker and headphone outputs temporarily.To end the muting, press this button or adjust the volume. Muting is also canceled when the receiver is turned off. AVR Power Off Button:Press this button to turn off the AVR 354. Source Selectors:Press one of these buttons to select a source device, which is a component where a playback signal originates, e.g., D