Harman-Kardon-AVR-247-Service-Manual电路图 维修手册.pdf

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1、 harman/kardon AVR247 AVR247 7 X 50W 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/INSTALLATION.14 OPERATION.26 TROUBLESHOOTING GUIDE.34 REMOT

2、E the AVR 247 will automatically transcode analog video signals up to 720p to the HDMI format. High-resolution analog 1080i or higher signals are not available at the HDMI Output. The AVR 247 is Simplay HD-verified for compatibility via the HDMI connection with other Simplay HD-verified products. CD

3、 and Tape Audio Inputs:These jacks may be used to connect audio-only source components (e.g., CD player, tape deck). Do not connect a turntable to these jacks without a phono preamp. Tape Outputs:These jacks may be used to connect a CDR or another audio-only recorder. Coaxial and Optical Digital Aud

4、io Inputs:If a source has a compatible digital audio output, connect it to one of these jacks for improved audio performance. Use only one type of digital audio connection for each source. Coaxial and Optical Digital Audio Outputs:If a source is also an audio recorder, you may connect a compatible d

5、igital audio output to the recorders input for improved recording quality. The Bridge/DMP Input:Connect the optional Harman Kardon to this input for use with your iPod (not included). Make sure the receiver is turned off (in Standby mode) when connecting The Bridge. The Bridge TM 8 AVR247 harman/kar

6、donharman/kardon REAR-PANEL CONNECTIONS 6-/8-Channel Inputs:Connect the multichannel analog audio outputs of a DVD-Audio, SACD, Blu-ray Discor HD-DVDplayer (or any other external decoder) to these jacks to enjoy these proprietary formats. NOTE: When an HD-DVD or Blu-ray Disc player has an onboard di

7、gital decoder, it is not necessary to connect it to the 6-/8-Channel Analog Audio Inputs. Only a digital audio connection (HDMI, coaxial or optical) is needed. Component Video Inputs:If both a video source (e.g., DVD player or HDTV tuner) and your television or video display have analog component vi

8、deo (Y/Pb/Pr) capability, and if you are not using an HDMI connection for the device, then you may connect the component video outputs of the source to one of the two component video inputs. Do not make any other video connections to that source. Component Video Monitor Outputs:If you are using one

9、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 display, you may connect these jacks to the correspon- ding inputs on your video display. NOTES: Due to copy-protection restrictions, there is no outpu

10、t at the Component Video Monitor Outputs for copy-protected sources. High-resolution 1080i and 1080p video signals are not available at the HDMI Output, and are downconverted to 720p for the Component Video Outputs. If your source outputs analog high-resolution video, either use the Component Video

11、Outputs, lower the output resolution of your source device, or connect your sources component video outputs directly to your video display. Due to the design of some video displays, analog 480p or 720p component video source signals may produce artifacts when used with the AVRs analog video outputs

12、(composite, S-video or component video). If this occurs, try changing the Video Mode setting in the INPUT SETUP menu, or connecting the source devices video output directly to your video display. However, for best results, we recommend you consider upgrading to an HDMI-capable video display. RS-232

13、Serial Port:This specialized connector may be used with your personal computer in case Harman Kardon offers a software upgrade for the receiver at some time in the future. RS-232 Mode:Leave this switch popped out in the Operate position unless the AVR 247 is being upgraded. RS-232 Reset:This switch

14、is only used during a software upgrade. A standard processor reset is performed by pressing and holding the front-panel Tone button. Switched AC Accessory Outlet:You may plug 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

15、source that consumes more than 50 watts of power. AC Power Cord:After you have made all other connections, plug the AC power cord into an unswitched outlet. 9 AVR247 harman/kardonharman/kardon FM Antenna XM Antenna Jack AM Antenna Video 2 A/V Inputs Video 1 A/V Outputs Video 3 A/V Inputs Video 1 A/V

16、 Inputs Video Monitor Outputs DVD A/V Inputs Component Video Inputs (1, 2 MULTI LEVEL, which adjusts the volume of the remote zone only; and MULTI INPUT, which is used to select the source input for the remote zone. See Multiroom Operation in the Advanced Functions section for more information on us

17、ing the AVR 247s multiroom system. Channel Level:Press this button to adjust the output levels for each channel so that all speakers sound equally loud at the listening position. Usually this is done while playing an audio selection,such as a favorite CD, after you have calibrated the levels using E

18、zSet/EQ,as described in the Initial Setup section. Speaker Setup:Press this button to configure speaker sizes, that is, the low-frequency capability of each speaker. Usually this is done using the on-screen menu system, as described in the Initial Setup section. Navigation (/) and Set Buttons:These

19、buttons are used to make selections within the on-screen menu system, or when accessing the functions of the four buttons surrounding this area of the remote Channel Level, Speaker Setup, Digital Input or Delay. Digital Input Select:Press this button to select the specific digital audio input (or an

20、alog audio input) you used for the current source. Delay:Press this button to set delay times that compensate for placing the speakers at different distances from the listening position, or to resolve a “lip sync” issue that may be caused by digital video processing. This may also be done using the

21、on-screen menu system, as described in the Initial Setup section. Numeric Keys:Use these buttons to enter radio station frequencies or to select station presets.When the AM or FM band is in use, press the Direct Button before entering the station frequency. When listening to XM Radio, you may enter

22、channel numbers without first pressing the Direct Button; however, to access the preset stations, you will need to use the Preset Stations Selectors.To access another bank of XM presets, press the Set Button repeatedly until PRESET SEARCH appears, then use the /Buttons to select the letter of the de

23、sired bank. Tuning Mode:When listening to AM or FM radio, this button toggles between manual (one frequency step at a time) and automatic (seeks frequencies with acceptable signal strength) tuning mode. It also toggles between stereo and mono modes when an FM station is tuned. When listening to XM R

24、adio, press the Tuning Mode Button once to view the category name of the current channel.Additional presses will display the artist, song title and channel name. Memory:After you have tuned a particular radio station, press this button, then the numeric keys, to save that station as a radio preset.

25、For XM Radio, the procedure for saving a preset is a little different.To save the current channel in one of the 40 available preset locations, press the Set Button repeatedly until PRESET SEARCH appears. Use the /Buttons to select a letter (A through E) representing one of the five banks of preset m

26、emory slots.Then press the Memory Button, followed by a Numeric Key (1 through 8) for the precise preset memory location you wish to save the channel in. Tuning:Press these buttons to tune a radio station or XM Radio channel. For the AM and FM bands, and depending on whether the tuning mode has been

27、 set to manual or automatic, each press will either change one frequency step at a time, or seek the next frequency with acceptable signal strength. Direct:Press this button before using the Numeric Keys to directly enter a radio station frequency (AM or FM bands only). Clear:Press this button to cl

28、ear a radio station frequency you have started to enter. Preset Stations Selector:Press these buttons to select a preset radio station. For XM Radio, first press the Set Button repeatedly until PRESET SEARCH appears and then use the /Buttons to select the letter of the desired bank of presets. Tone

29、Mode:Press this button to access the tone controls (bass and treble). Use the Navigation Buttons to make your selections. Disc Skip:This button has no effect on the receiver, but is used with some optical disc changers to skip to the next disc. Macros:These buttons may be programmed to execute long

30、command sequences with a single button press.They are useful for programming the command to turn on or off all of your components,or for accessing special- ized functions for a different component than you are currently operating. Surround Mode Selectors:Press any of these buttons to select a type o

31、f surround sound (e.g., multichannel) mode. Choose from the Dolby modes, DTS modes, Logic 7 modes or Stereo modes. Each press of a button will cycle to the next available variant of that mode. Not all modes or mode groups are available with all sources. Night Mode:Press this button to activate Night

32、 mode with specially encoded Dolby Digital discs or broadcasts. Night mode compresses the audio so that louder passages are reduced in volume to avoid disturbing others, while dialogue remains intelligible. Track Skip:These buttons have no effect on the receiver, but are used with many source compon

33、ents to change tracks or chapters. Dim:Press this button to partially or fully dim the front-panel display. Transport Controls:These buttons have no effect on the receiver, but are used to control many source components. By default, when the remote is operating the receiver, these buttons will contr

34、ol a DVD player. 13 AVR247 harman/kardonharman/kardon 17 CONNECTIONS There are different types of audio and video connections used to connect the receiver to the speakers and video display, and to connect the source devices to the receiver.To make it easier to keep them all straight, the Consumer El

35、ectronics Association (CEA) has established a color-coding standard.Table 1 may be helpful to you as a reference while you set up your system. Table 1 Connection Color Guide Types of Connections This section will briefly review different types of cables and connections that you may use to set up you

36、r system. Speaker Connections Speaker cables carry an amplified signal from the receivers speaker terminals to each loudspeaker. Speaker cables contain two wire conduc- tors, or leads, inside plastic insulation.The two conductors are usually differentiated in some way, by using different colors, or

37、stripes, or even by adding a ridge to the insulation. Sometimes the actual wires are different, one being copper-colored and the other silver. The differentiation is important because each speaker must be connected to the receivers speaker-output terminals using two wires, one positive (+) and one n

38、egative (), referred to as speaker polarity. Its important to maintain the proper polarity for all speakers in the system. If some speakers have their negative terminals connected to the receivers positive terminals, performance can suffer, especially for the low frequencies. Always connect the posi

39、tive terminal on the loudspeaker, which is usually colored red, to the positive terminal on the receiver, which is colored as shown in the Connection Color Guide (Table 1). Similarly, always connect the black negative terminal on the speaker to the black negative terminal on the receiver. The AVR 24

40、7 uses binding-post speaker terminals that can accept banana plugs or bare-wire cables. Banana plugs are simply plugged into the hole in the middle of the terminal cap. See Figure 1. Figure 1 Binding-Post Speaker Terminals With Banana Plugs Bare wire cables are installed as follows (see Figure 2): 1

41、. Unscrew the terminal cap until the pass-through hole in the collar is revealed. 2. Insert the bare end of the wire into the hole. 3. Hand-tighten the cap until the wire is held snugly. Figure 2 Binding-Post Speaker Terminals With Bare Wires Subwoofer The subwoofer is a specialized type of loudspea

42、ker that is usually connected in a different way.The subwoofer is used to play only the low frequencies (bass), which require much more power than the other speaker channels. In order to obtain the best results, most speaker manufacturers offer powered subwoofers, in which the speaker contains its o

43、wn amplifier on board. Sometimes the subwoofer is connected to the receiver using the front left and right speaker outputs, and then the front left and right speakers are connected to terminals on the subwoofer. More often, a line-level (nonamplified) connection is made from the receivers Subwoofer

44、Output to a corresponding jack on the subwoofer, as shown in Figure 3. Although the subwoofer output looks similar to the analog audio jacks used for the various components, it is filtered and only allows the low frequencies to pass. Dont connect this output to any other devices. Although doing so w

45、ont cause any harm, performance will suffer. Figure 3 Subwoofer Connecting Source Devices to the AVR The AVR 247 is designed to process audio and video input signals, playing back the audio and displaying the video on a television or monitor connected to the AVR.These signals originate in what are k

46、nown as “source devices,” including your DVD player, CD player, DVR (digital video recorder) or other recorder, tape deck, game console, cable or satellite television box or MP3 player.Although the tuner is built into the AVR, it also counts as a source, even though no external connections are neede

47、d, other than the FM and AM antennas and the XM antenna module. Separate connections are required for the audio and video portions of the signal, except for digital HDMI connections.The types of connections used depend upon whats available on the source device, and for video signals, the capabilitie

48、s of your video display. SubwooferPreout Always connect colored (+) terminal on AVR to red (+) terminal on speaker; and black () to black (). Branchez toujours la borne (+) colore sur AVR la borne (+) rouge sur le haut-parleur; et la noire () la noire (). Conecte siempre el terminal de color (+) en

49、el AVR al terminal rojo (+) en el altavoz; y el negro () al negro (). HOW TO USE THE BINDING-POST SPEAKER TERMINAL COMMENT UTILISER LA BORNE DES HAUT-PARLEURS DE CONNEXION CMO USAR EL TERMINAL DE ALTAVOZ DE POSTE DE SUJECIN Audio Connections Left Right Front (FL/FR) Center (C) Surround (SL/SR) Subwoofer (SUB) Digital Audio Connections Coaxial Optical Output Input Video Connections Component Y Pb Pr Composite S-Video 123 + Audio Connections Left Right Front (FL/