HarmanKardon-AVR147-avr-sm维修电路原理图.pdf

harman/kardon AVR147 AVR147 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.23 TROUBLESHOOTING GUIDE.30 REMOTE 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 desired 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 Radio, 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. 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 memory 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 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 clear 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 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 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 specialized functions for a different component than you are currently operating. Surround Mode Selectors:Press any of these buttons to select a type of 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 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 components 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 control a DVD player. AVR147-OM.qxd 2/6/07 3:16 PM Page 14 12 AVR147 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 16 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 Electronics 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 your system. Speaker Connections Speaker cables carry an amplified signal from the receivers speaker terminals to each loudspeaker. Speaker cables generally contain two wire conductors, or leads, inside plastic insulation.The two conductors are usually differentiated in some way, by using different colors, or 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 negative ().This is called 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 posi- tive terminals, performance can suffer, especially for the low frequencies. Always connect the positive 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 147 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. Figure 1 Binding-Post Speaker See Figure 1. Terminals With Banana Plugs Bare wire cables are installed as follows (see Figure 2): 1. 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. Screw the cap back into place until the wire is held snugly. Figure 2 Binding-Post Speaker Terminals With Bare Wires Subwoofer The subwoofer is a specialized type of loudspeaker 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 own 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 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 your other devices. Although doing so wont cause any harm, performance will suffer. Figure 3 Subwoofer Connecting Source Devices to the AVR The AVR 147 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 known 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 needed, other than the FM and AM antennas. Separate connections are required for the audio and video portions of the signal.The types of connections used depend upon whats available on the source device, and for video signals, the capabilities of your video display. Subwoofer Pre-out 123 + Audio Connections Left Right Front (FL/FR) Center (C) Surround (SL/SR) Subwoofer (SUB) Digital Audio Connections Coaxial Optical Input Output Video Connections Component Y Pb Pr Composite S-Video HDMI Connections (switching only) HDMI AVR147-OM.qxd 2/6/07 3:17 PM Page 16 13 AVR147 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 17 CONNECTIONS Audio Connections There are two formats for audio connections: digital and analog. Digital audio signals are of higher quality, and are required for listening to sources encoded with digital surround modes, such as Dolby Digital and DTS.There are two types of digital audio connections: coaxial and optical. Either type of digital audio connection may be used for each source device, but never both simultaneously for the same source. However, its okay to make both analog and digital audio connections at the same time to the same source. NOTE:Although HDMI cables are capable of carrying digital audio signals, the AVR 147 is not designed to process those signals.Therefore,if your source and video display are both HDMI- capable,use the HDMI connections for video only.Make a separate audio connection from the source device to the AVR 147, and turn the volume on your TV all the way off. Digital Audio Coaxial digital audio jacks are usually color-coded in orange.Although they look similar to analog jacks, they should not be confused, and you should not connect coaxial digital audio outputs to analog inputs or vice versa. See Figure 4. Figure 4 Coaxial Digital Audio Optical digital audio connectors are normally covered by a shutter to protect them from dust.The shutter opens as the cable is inserted.Input connectors are color-coded using a black shutter, while outputs use a gray shutter. See Figure 5. Figure 5 Optical Digital Audio Due to the nature of digital signals as binary bits, they arent subject to signal degradation the way analog signals are.Therefore, the quality of coaxial and optical digital audio connections should be the same, although it is important to limit the length of the cable.Whichever type of connection you choose, Harman Kardon recommends that you always select the highest quality cables available within your budget. Analog Audio Analog connections require two cables, one for the left channel (white) and one for the right channel (red).These two cables are often attached to each other for most of their length. See Figure 6. Most sources that have digital audio jacks also have analog audio jacks, although some older types of sources, such as tape decks, have only analog jacks. For sources that are capable of both digital and analog audio, you may wish to make both connections. If you wish to record materials from DVDs or other copy-protected sources, you may only be able to do so using analog connections. Remember to comply with all copyright laws if you choose to make a copy for your own personal use. Figure 6 Analog Audio Multichannel analog connections are used with some high-definition sources where the copy-protected digital content is decoded inside the source.These types of connections are usually used with DVD-Audio, SACD, Blu-ray Disc, HD-DVD and other multichannel players. See Figure 7. Figure 7 Multichannel Analog Audio Harman Kardon receivers also include a proprietary, dedicated audio connection called “The Bridge/DMP”. If you own an iPod with a dock connector, you may purchase The Bridge separately and connect it to The Bridge/DMP port on the receiver. See Figure 8. Dock your iPod (not included) in The Bridge, and you may play your materials through your high-performance audio/video system.You may even use the AVR 147 remote to control the iPod, with navigation messages displayed on the front panel and on the screen of a video display connected to the AVR. Figure 8 The Bridge Video Connections Although some sources produce an audio signal only (e.g., CD player, tape deck), many sources output both audio and video signals (e.g., DVD player, cable television box, HDTV tuner, satellite box,VCR, DVR). In addition to the audio connection, you will need to connect one type of video connection for each of these sources (never more than one at the same time for any source). Digital Video The AVR 147 is equipped with two HDMI (High-Definition Multimedia Interface) inputs, and one output. HDMI is capable of carrying digital audio and video information using a single cable, thus delivering the highest possible quality picture and sound. There are different versions of HDMI, depending on the capability of the source device and the type of signal it is capable of transmitting via the HDMI connection. In addition, receivers and processors such as the AVR 147 may handle the incoming signal in several different ways, depending on their capabil- ity as well.The AVR 147 is only capable of switching the HDMI data. That is, the incoming audio and video data will be passed directly to your HDMI-capable video display, without the AVR 147 processing any Multichannel analog audio cable (RCA) Front Surround Center Subwoofer L R Analog audio cable (RCA) Optical Optical digital audio cable CoaxialCoaxial digital audio cable AVR147-OM.qxd 2/6/07 3:17 PM Page 17 14 AVR147 harman/kardonharman/kardon RadioFans.CN 收音机爱 好者资料库 18 CONNECTIONS of the data.Although this enables the AVR 147 to be compatible with virtually any HDMI-capable source device and video display, it requires a separate audio connection for each source since the AVR 147 doesnt have access to the audio data in the HDMI stream. The AVR 147 is Simplay HD-verified for compatibility via the HDMI connection with other Simplay HD-verified products. The AVR 147 will not convert analog video signals to the HDMI format, and the on-screen displays are not visible when using an HDMI source. Therefore, you will need to connect the composite or S-video monitor output to your video display (or both, depending on which video con- nections your sources use), to view the on-screen menus. The physical HDMI connection is simple.The connector is shaped for easy plug-in (see Figure 9). If your video display has a DVI input, you may use an HDMI-to-DVI adapter (not included) to connect it to the AVRs HDMI Output. Figure 9 HDMI Connection Analog Video There are three types of analog video connections: composite video, S-video and component video. Composite video is the basic connection most commonly available. The jack is usually color-coded yellow, and looks like an analog audio jack, although it is important never to confuse the two. Do not plug a composite video cable into an analog or coaxial digital audio jack, or vice versa. Both the chrominance (color) and luminance (intensity) components of the video signal are transmitted using a single cable. See Figure 10. Figu