HarmanKardon-AVR144-avr-sm维修电路原理图.pdf

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1、 harman/kardon AVR144 AVR144 5 X 30W 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.27 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 144 does not have any conventional balance control.The output level calibration process compensates for any characteristics of your room or speakers, and we recommend that you leave the settings as they are after the speakers have been

5、calibrated. However, you may manually adjust the levels of the left and right channels decreasing one and increasing the other by the same amount using the Channel Adjust submenu. This achieves the same effect as a balance control. Headphones Plug the 1/4 plug on a pair of headphones into the headph

6、one jack on the front of the receiver for private listening. See Figure 48.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. Fig

7、ure 48 Headphone Jack Press 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

8、 other surround modes are 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 Tu

9、ner Band Button, which switches to the last-used band and frequency. See Figure 49. For direct access to any source, press its Input Selector on the remote (see Figure 43). Figure 49 Source Select and Tuner Band Buttons The AVR 144 will switch to the audio and video inputs assigned to that source. I

10、f you set the BASS MGR setting in the Speaker X-Over menu to INDEPENDENT, the AVR 144 will change the speaker size configura- tion to the one you programmed for the source. If you selected a sur- round mode for the source, the AVR 144 will switch to that mode. HKP1482AVR144-om 9/7/06 3:12 PM Page 33

11、 23 AVR144 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 34 OPERATION 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 input

12、s) will also 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 (see Advanced Functions section). Audio Input Selection The AVR 144 is programmed at the factory

13、 to use the analog audio inputs for each source (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.The current au

14、dio input selection will flash in the display, and you may press the / Buttons to scroll through the audio inputs.When the desired input appears, press the Set Button to select it. See Figure 50. Figure 50 Digital Input Selection If the Auto Poll feature has been left ON in the Input Setup menu, and

15、 if a digital audio input has been assigned to the source, the AVR 144 will first check the digital audio input for a signal. If a signal is present, the AVR 144 will select the digital audio input. If no signal is present, the AVR 144 will switch to the analog audio inputs for the source. Video Inp

16、ut Selection When a source is selected, the AVR 144 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 144 is assigned to each source.All of the sources listed in the left column of the Source Indicators di

17、splay on the front panel 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 51. Figure 51 Front-Panel Input Indicators You may reassign either component video input to another source

18、, but there is no option 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 turne

19、d off. If no signal 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 vid

20、eo signal is present, 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, and connect the players 6-channel analog audio outputs

21、to the 6-Channel Inputs on the AVR.Assign the Component Video 1 input to the 6-Channel Input source.The AVR will automatically select the correct component video and audio inputs when you select this source. If you need to use composite or S-video for your multichannel player, e.g., if your video di

22、splay does not have component video inputs, then you will need to use the video inputs for another source. Since the AVR automatically selects the last-used video inputs for audio sources, first select the source you connected the video cables to, and then the 6-Channel Inputs for the audio. Example

23、:You would like to connect a DVD-Audio player to the AVR 144. You plan on playing a variety of discs using this player, including con- ventional DVDs and even CDs as well as multichannel discs.When playing DVDs and CDs, it is preferable to use a digital audio connection to obtain the best sound qual

24、ity and the benefit of any digital surround formats contained on the DVD. However, when playing DVD-Audio discs, you will need to use the 6-channel analog audio connections. In addition, some of these discs contain video materials. We recommend you connect this player as follows: a) Connect the play

25、ers coaxial digital audio output to the Coaxial 1 input on the AVR.This input is assigned by default to the DVD source. b) Connect the players component video outputs to the Component Video 1 inputs on the AVR, which are assigned by default to the DVD and 6-Channel Input sources. If your video displ

26、ay doesnt have com- ponent video inputs, then connect the players composite or S-video output to the DVDs corresponding video input. c) Connect the players 6-channel analog audio outputs to the AVRs 6-Channel Inputs. d) Program the players remote control codes into the DVD Input Selector. Note that

27、not all commands will necessarily be available. When you wish to view a DVD, simply select the DVD source. When you wish to listen to a DVD-Audio disc and view the menus and other still images on the disc, first select DVD, and then select the 6-/8- Channel Inputs as the source. See Figure 52. DIGIT

28、ALLOGIC 7VID 1DVD CD FMAM TAPE 6 CH VID 2 VID 3 PRO LOGIC DSP 5 CH. STEREO SURR. OFF HKP1482AVR144-om 9/7/06 3:12 PM Page 34 24 AVR144 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 35 OPERATION Figure 52 6-Channel Input Selector NOTE: The 6-Channel Inputs pass the incoming signals directly to t

29、he 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 Manual Setup menu. Consult the owners guide for your mu

30、lti- channel player for more information. Using the Tuner The AVR 144s built-in tuner may be selected in one of three ways (see Figure 53): 1. Press the Source Selector Button on the front panel repeatedly until the tuner is selected.The last-used band (AM or FM) will be active. 2. Press the Tuner B

31、and 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 53 Tuner Input Selection Radio stations may be selected in one of four ways (see Figure 54): 1. If you know the frequenc

32、y number, enter it directly by first pressing the Direct Button on the remote, and then using 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

33、 list of presets. 3. In Auto tuning mode, with each press of the Tuning Buttons (front- panel or remote) the AVR 144 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 pres

34、s of the Tuning Buttons the AVR 144 will tune the next frequency increment (0.1MHz for FM, or 10kHz for AM) in the selected direction. Press and hold the Tuning Button for faster scanning. Figure 54 Tuning a Station Press the Tuning Mode Button (TUN-M on the remote) to switch between Auto and Manual

35、 tuning modes.When an FM station has been tuned, pressing the Tuning Mode Button will switch between stereo and mono tuning, which may improve reception of weaker stations. See Figure 55. Figure 55 Tuning Mode To store a station in one of the 30 presets (see Figure 56): 1.Tune the desired station. 2

36、. Press the Memory Button on the remote. 3. Use the Numeric Keys to enter the desired preset number. Figure 56 Storing a Preset Station Recording Two-channel analog audio signals, as well as composite and S-video signals, are normally available at the appropriate recording outputs.Thus, to make a re

37、cording, you need only make sure to connect your audio or video recorder to the appropriate output jacks, 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

38、 digital form, and digital audio signals are not converted to analog audio form. 2.The AVR 144 is not designed to make digital audio record- ings. Make sure your source device is connected to one of the AVR 144s analog audio inputs, and connect your recorder to either the Video 1 or Tape analog audi

39、o outputs. 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 duplication of copyrighted materials is prohibited by federal law. HKP1482AVR144-om 9/7/06 3:12 PM Page 35 25 AVR144

40、harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 36 OPERATION Selecting a Surround Mode Surround mode selection can be as simple or sophisticated as your individual system and tastes. Feel free to experiment with the many available surround modes on the AVR 144, and you may find a few that become

41、your favorites for certain sources or program types.Although more detailed information on surround modes may be found in the Advanced Functions section, it is easy to select any of the modes available at a given time: To select a surround mode using the front-panel controls, press the Surround Mode

42、Button repeatedly until the desired group of modes is selected: Logic 7, Dolby, DTS, DSP or Stereo.Then press the Surround Select Button repeatedly to select the desired mode within the group. See Figure 57. Figure 57 Select a Surround Mode (Front Panel) To select a surround mode using the remote co

43、ntrol, locate the button dedicated to the desired group of modes: Logic 7, Dolby Sur, DTS Sur, DTS Neo:6, Surr (DSP) or Stereo. Press that button repeatedly to select the desired mode. See Figure 58. Figure 58 Select a Surround Mode (Remote) To select a surround mode using the full-OSD menu system,

44、press the OSD Button to display the Master Menu. Navigate to the SURROUND SELECT line and press the Set Button to view the Surround Select menu. Each of the major surround mode groups is listed here. Select that group to access the MODE setting for selection of an individual mode.As explained in the

45、 Advanced Functions section, there are also some additional settings that may be made. You are now ready to enjoy the best in home theater entertainment, using your AVR 144.As you become more familiar with the receiver, you may wish to explore some of its advanced functions, which are described in t

46、he following section. HKP1482AVR144-om 9/7/06 3:12 PM Page 36 26 AVR144 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 45 TROUBLESHOOTING GUIDE 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 t

47、o see whether outlet is switch-controlled Display lights, but no sound Intermittent input connections Make certain that all input and speaker connections 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 protect

48、ion mode Check speaker wire connections for shorts at receiver and light around power switch is reddue to possible shortspeaker ends Amplifier is in protection mode Contact your local Harman Kardon service center due to internal problems No sound from surround or Incorrect surround mode Select a mod

49、e other than Stereo center speakers Input is monaural There is no surround information from mono sources Incorrect configuration Check speaker mode 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 obscured Make certain front panel sensor