Harman-Kardon-AVR-145-Service-Manual(1)电路图 维修手册.pdf

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1、 harman/kardon AVR145 AVR145 5 X 40W 5.1 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.10 CONNECTIONS/INSTALLATION.13 OPERATION.22 TROUBLESHOOTING GUIDE.26 REMOT

2、E press the Set Button to display that menu.You will be able to view the tone settings. If you wish to make any changes to the TONE, BASS or TREBLE settings, use the arrow keys on the remote to move the cursor to the line you wish to change. Once you have changed the setting using the / Buttons, sim

3、ply move the cursor up or down to a different line; it isnt necessary to press the Set Button to enter the new setting.When you have finished, either wait until the display times out and disappears, press the OSD Button to clear the display, or move the cursor to the BACK TO MASTER MENU line if you

4、wish to make other changes using the menu system. NOTE: The AVR 145 does not have any conventional balance control.The EzSet process compensates for any characteristics of your room or speakers, and we recommend that you leave the settings as they are after EzSet has been run. However, you may manua

5、lly adjust the levels of the left and right channels decreasing one and increasing the other by the same amount using the Channel Adjust submenu, as described on page 41. This achieves the same effect as a balance control. Headphones Plug the 1/4 plug on a pair of headphones into the headphone jack

6、on the front of the receiver for private listening.The first time you use the headphones, the DOLBY H:BP message will be displayed, indicating that Dolby Headphone surround processing is in the bypass mode, which delivers a conventional 2-channel signal to the headphones. Figure 51 Headphone Jack Pr

7、ess the Surround Select Button on the front panel, or the Dolby Button on the remote, to switch to Dolby Headphone virtual surround processing, indicated by the DOLBY H:DH message. Dolby Headphone delivers an enhanced sound field that emulates a 5.1-channel speaker system. No other surround modes ar

8、e available for the headphones. Source Selection Press the front-panel Source Select Button to scroll through the sources.The left side of the button scrolls down the list that appears in the display; the right side scrolls upward. For direct access to the tuner, press the Tuner Band Button, which s

9、witches to the last-used band and frequency. For direct access to any source, press its Input Selector on the remote (see Figure 46). Figure 52 Source Select and Tuner Band Buttons NOTE: The Bridge/DMP source has no icon in the Source Indicators display.When selected, the DMP indication will appear

10、in the message displays upper line, and one of two messages will scroll on the right side to indicate whether The Bridge is unplugged or connected. If you have retitled this source, then only the new name will appear in the upper line. The AVR 145 will switch to the audio and video inputs assigned t

11、o that source. If you set the BASS MGR setting in the Speaker X-over menu to AVR 145 OM (New) 8/4/06 1:19 PM Page 32 23 AVR145 harman/kardonharman/kardon 33 OPERATION INDEPENDENT, the AVR 145 will change the speaker size configuration to the one you programmed for the source. If you selected a surro

12、und mode for the source, the AVR 145 will switch to that mode. The source name will appear in the upper line of the front-panel display. If you retitled the source, only the new title will appear. Otherwise, the audio input assigned to the source (analog or one of the digital audio inputs) will also

13、 appear.The surround mode will be displayed on the lower line.The same information will also appear on screen in the semi-OSD, unless you have set the semi-OSD to OFF in the System Setup menu. Audio Input Selection The AVR 145 is programmed at the factory to use the analog audio inputs for each sour

14、ce (except for the DVD and Video 2 sources, which default to Coax 1 and Optical 1).To assign a digital audio input to a source (if you have not done so using the Input Setup menu during Initial Setup), press the Digital Button on the remote or front panel.The current audio input selection will flash

15、 in the display, and you may press the /(or / on the front panel) Buttons to scroll through the audio inputs.When the desired input appears, press the Set Button to select it. Figure 53 Digital Input Selection If the Auto Poll feature has been left ON in the Input Setup menu, and if a digital audio

16、input has been assigned to the source, the AVR 145 will first check the digital audio input for a signal. If a signal is present, the AVR 145 will select the digital audio input. If no signal is present, the AVR 145 will switch to the analog audio inputs for the source. Video Input Selection When a

17、source is selected, the AVR 145 switches to a video input as follows: The COMPONENT IN line of the Input Setup menu indicates which of the two component video inputs on the AVR 145 is assigned to each source.All of the sources listed in the left column of the Source Indicators display on the front p

18、anel are assigned to the Component Video 2 inputs by default, and the sources listed in the right column default to the Component Video 1 sources.This list appears in Figure 54. Figure 54 Front-Panel Input Indicators You may reassign either component video input to another source, but there is no op

19、tion to disable the component video inputs for any source. If a signal is present at the component video input assigned to that source, it will be selected. If your device is not using component video, make sure that other devices connected to the component video inputs are turned off. If no signal

20、is present at the component video input, then the S-video or composite video input for the source will be selected. It is not possible to reassign the S-video or composite video inputs to other sources. For audio-only sources, such as the tuner or CD inputs, when no component video signal is present

21、, the last-used video source will be selected. 6-Channel Direct Inputs If you wish to hear audio through the 6-Channel Direct Inputs together with video, then connect your multichannel player to the Component Video 1 Inputs (the default for the 6-Channel Inputs), and the correct audio and video inpu

22、ts will be selected when you select 6CH as your source. If your multichannel player uses S-video or composite video connections, you will first need to select the source you connected the video output to (e.g., DVD), and then select the 6CH source. Figure 55 6-Channel Input Selector NOTE: The 6-Chan

23、nel Inputs pass the incoming signals directly to the volume control, without digitizing or processing them. Therefore, you will need to configure bass management settings (i.e., speaker size, delay and output level) on your source device so that they match the settings you programmed using the Manua

24、l Setup menu. Consult the owners guide for your multi- channel player for more information. Using the Tuner The AVR 145s built-in tuner may be selected in one of three ways: 1. Press the Source Selector Button on the front panel repeatedly until the tuner is selected.The last-used band (AM or FM) wi

25、ll be active. 2. Press the Tuner Band Button (marked AM/FM). Press this button again to switch bands. 3. Press the Tuner Input Selector (marked AM/FM) on the remote. Press this button again to switch bands. Figure 56 Tuner Input Selection DIGITALLOGIC 7VID 1DVD CD FMAM TAPE 6 8 CH VID 2 VID 3 PRO LO

26、GIC 3 STEREO DSP 5 7 CH. STEREO SURR. OFF AVR 145 OM (New) 8/4/06 1:19 PM Page 33 24 AVR145 harman/kardonharman/kardon 34 OPERATION Radio stations may be selected in one of four ways: 1. If you know the frequency number, enter it directly by first pressing the Direct Button on the remote, and then u

27、sing the Numeric Keys. 2.After you have programmed Preset stations (see below), either enter the Preset number (1 through 30) using the remote or use the front- panel Preset Stations Button to scroll through the list of presets. 3. In Auto tuning mode, with each press of the Tuning Buttons (front- p

28、anel or remote) the AVR 145 will scan in the chosen direction until a station with acceptable signal strength is detected. Press the Tuning Button again to stop scanning. 4. In Manual tuning mode, with each press of the Tuning Buttons the AVR 145 will tune the next frequency increment (0.1MHz for FM

29、, or 10kHz for AM) in the selected direction. Press and hold the Tuning Button for faster scanning. Figure 57 Tuning a Station Press the Tuning Mode Button (TUN-M on the remote) to switch between Auto and Manual tuning modes.When an FM station has been tuned, pressing the Tuning Mode Button will swi

30、tch between stereo and mono tuning, which may improve reception of weaker stations. Figure 58 Tuning Mode To store a station in one of the 30 presets: 1.Tune the desired station. 2. Press the Memory Button on the remote. 3. Use the Numeric Keys to enter the desired preset number. Figure 59 Storing a

31、 Preset Station Recording Two-channel analog and digital audio signals, as well as composite and S-video signals, are normally available at the appropriate recording outputs.Thus, to make a recording, you need only make sure to con- nect your audio or video recorder to the appropriate output jacks,

32、as described in the Installation section, insert blank media and make sure the recorder is turned on and recording while the source is playing. NOTES: 1.Analog audio signals are not converted to digital form, and digital audio signals are not converted to analog audio form. However, you may record a

33、 coaxial or optical digital audio source using either type of digital audio output. 2. Only PCM digital audio signals are available for recording. Proprietary formats such as Dolby Digital and DTS may not be recorded using the digital audio connections, although if the source is connected to the AVR

34、 using the analog audio connections, an analog recording may be made. 3. Component video sources are not available for recording. 4. Please make certain that you are aware of any copyright restrictions on any material you record. Unauthorized duplica- tion of copyrighted materials is prohibited by f

35、ederal law. Using The Bridge is an optional dock that may be used with a compatible iPod (not included).When The Bridge is connected to its proprietary input on the AVR 145 and the iPod is docked, you may play the audio materials on your iPod through your high-quality audio system, operate the iPod

36、using the AVR remote or the AVRs front-panel controls, view navigation messages on the AVRs front panel or a connected video display, and charge the iPod. Either press the front-panel Source Selector repeatedly until the mes- sage “DMP/The Bridge is CONNECTED” scrolls across the front panel and semi

37、-OSD displays, or press the DMP Button on the remote to select The Bridge as the input source. (Left) Figure 60 Using The Bridge (Remote) (Above) Figure 61 Using The Bridge (Front Panel) The Bridge TM AVR 145 OM (New) 8/4/06 1:19 PM Page 34 25 AVR145 harman/kardonharman/kardon 45 TROUBLESHOOTING GUI

38、DE SYMPTOMCAUSESOLUTION Unit does not function when Main No AC Power Make certain AC power cord is plugged into Power Switch is pusheda live outlet Check to see whether outlet is switch-controlled Display lights, but no sound Intermittent input connections Make certain that all input and speaker con

39、nections or pictureare secure Mute is on Press Mute Button Volume control is down Turn up volume control No sound from any speaker; Amplifier is in protection mode Check speaker wire connections for shorts at receiver and light around power switch is reddue to possible shortspeaker ends Amplifier is

40、 in protection mode Contact your local Harman Kardon service center due to internal problems No sound from surround or Incorrect surround mode Select a mode other than Stereo center speakers Input is monaural There is no surround information from mono sources Incorrect configuration Check speaker mo

41、de configuration Stereo or Mono program material The surround decoder may not create center- or rear-channel information from nonencoded programs Unit does not respond to Weak batteries in remote Change remote batteries remote commands Wrong device selected Press the AVR selector Remote sensor is ob

42、scured Make certain front panel sensor is visible to remote or connect an optional remote sensor Intermittent buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliances Letters flash in the channel indicator Digital audio f

43、eed paused Resume play for DVD display and digital audio stops Check that Digital Input is selected In addition to the items shown above, additional information on troubleshooting possible problems with your AVR 145, or installation-related issues, may be found in the list of Frequently Asked Questi

44、ons which is located in the Product Support section of our Web site at . AVR 145 OM (New) 8/4/06 1:19 PM Page 45 Erasing Macros It isnt possible to “edit” a command within a macro. However, you may erase the macro as follows: 1. Simultaneously press and hold the Mute Button and the Macro Button cont

45、aining the macro until the LED flashes. 2. Press the Surround Button to erase the macro. Resetting the Remote To reset the remote to its factory defaults, enter Program mode by simultaneously pressing and holding any Input Selector and the Mute Button. When the LED flashes, enter the code “333”. Whe

46、n the LED goes out, the remote will have been fully reset. Processor Reset There may be instances where you wish to fully reset the AVR 145 to its factory defaults, or the unit may behave erratically after a power surge. For erratic behavior, we recommend you try turning the Master Power Switch off

47、and unplugging the AC Power Cord for at least three minutes. Try plugging the cord back in and turning the receiver back on. If this doesnt work, you may want to try a system reset. NOTE: A system reset erases all user configurations, including speaker and level settings and tuner presets. After a r

48、eset, you will need to re-enter all of these settings. To reset the AVR 145, place the receiver in Standby mode (press the front-panel Standby/On Switch so that the Power Indicator turns amber). Then press and hold the front-panel Tone Mode Button for at least five seconds until the RESET message ap

49、pears in the display. If the receiver still does not function correctly after a processor reset, contact an authorized Harman Kardon service center for assistance. Service centers may be located by visiting our Web site at . Memory If the AVR 145 is unplugged or experiences a power outage, it will retain user settings for up to four weeks. 26 AVR145 harman/kardonharman/kardon 1 2 1 1. Removing the Top Cab