HarmanKardon-DVD22B-cd-sm维修电路原理图.pdf

DVD 22 - DVD22B Digital Versatile Disc Player SERVICE MANUAL Power for the Digital Revolution RadioFans.CN INTRODUCTION Introduction Kardon DVD.The DVD is a multipurpose DVD player, capable of playing both DVD-Video discs and conventional CD audio discs with the highest fidelity and access to future software upgrades via the Internet.Along with conventional DVD- Video and CD audio discs, the DVD is also com- patible with MP3,WMA, JPEG and most record- able CD and DVD formats as well as VCD discs. To enable you to get the maximum quality from DVDs, the DVD is equipped with the latest in design techniques, including advanced 10-bit video digital-to-analog converters (DAC) and Video (composite), S-Video and RGB video (RGB via SCART) outputs, to ensure that you get all the quality inherent in todays DVD medium. For opti- mum playback of NTSC and PAL DVD with com- patible high-definition display devices, DVD is equipped with progressive component video out- puts. In addition, Harman Kardons audio heritage continues into the digital video era with audio- phile-grade Wolfson DACs to ensure that the audio quality matches the superb video. Of course, both coaxial and optical digital audio outputs are available for direct connection to A/V receivers or processors so that you may take advantage of Dolby Digital* and DTSsound- tracks.When playing audio CDs, the playback quality is state-of-the-art, matching that of the finest players available. A wide range of programming features makes it easy to program an evenings worth of entertain- ment.When playing DVDs, easy-to-understand on-screen menus and icons make it simple to change languages, soundtracks, subtitles or aspect ratio, while a parental-lock function enables you to control which discs may be viewed by younger members of the household. DVD players are among the fastest growing con- sumer electronics products ever brought to mar- ket, but this may, nevertheless, be the first DVD player youve owned.Although many of the fea- tures of the DVD resemble those of standard CD players, there are a number of functions that you may be unfamiliar with.To ensure that you are able to take advantage of all the power and flex- ibility the DVD has to offer, we encourage you to review this quick setup manual.That small investment of your time will pay major dividends in the enjoyment you will get from proper use of the DVD. I Plays a Wide Range of Video and Audio Formats, Including DVD-Video Discs, VCD, Standard CD Audio Discs, CD-R/RW, DVD-R/RW, DVD-+R/RW,Audio Discs and MP3 Discs I High-Quality Video Playback 10-Bit DACs, Progressive Scan and Component Video Outputs I Dolby Digital and DTS Data Signal Output Through Both Optical and Coaxial Digital Audio Connections I Audiophile-Grade Wolfson Output DACs for the Finest Audio reproduction I Easy-to-Use On-Screen Navigation System I Playback of MP3 and WindowsWMA Audio Discs and JPEG image files I Simultaneous Playback of MP3 and JPEG files I Extensive Programming Capability for Audio and Video Discs I Parental Lock Controls Prevent Unauthorized Viewing of Restricted Movies I Multiple Options for Language, Soundtrack and Subtitle Selection I Multiple-Angle Capabilities With Specially Encoded DVD Discs I Backlit, Ergonomically Designed Remote Control RadioFans.CN TERMINOLOGY Terminology Since they share some of the characteristics and technology of CD players, many of the terms and operational concepts used in a DVD player are similar to what you may be familiar with from CD players and changers, or older video disc formats such as Laser Disc. However, if this is your first DVD product, some of the terms used to describe the features of a DVD player may be unfamiliar. The following explanations should solve some of the mysteries of DVD, and help you to enjoy all the power and flexibility of the DVD format and the DVD. With the arrival of DVD, disc data capacity has increased dramatically. On a DVD Video disc most of this capacity is taken up by MPEG 2 video and the multichannel movie soundtrack in Dolby Digital and/or DTS.This information is compressed. Aspect Ratio: This is a description of the width of a video image in relation to its height.A con- ventional video screen is four units wide for every three units of height, thats why the ratio is called ”4:3”. Newer wide aspect ratio video displays are 16 units wide for every nine units of height, making them more like the screen in a movie the- ater.The program material on a DVD may be recorded in either format and, in addition, you may configure the DVD to play back in either for- mat, depending on the features recorded on a disc. Title: For a DVD,a title is defined as an entire movie or program.There can be as many chapters within a title as the producers decide to include. Most discs include only one title,but some may have more than one,to give you a “Double Feature”presentation. Chapter: DVD programs are divided into chap- ters and titles. Chapters are the sub-sections pro- grammed into a single title on a disc. Chapters may be compared to the individual tracks on an audio CD. RGB Video:This is a new form of video signal that eliminates many of the artifacts of traditional composite video signals by splitting the signal into the three fundamental colors Red, Green and Blue (RGB).With an RGB connection (via SCART), you will see greater picture resolution and elimi- nate many picture imperfections such as the moir patterns often seen on checkered pat- terned cloths. However, in order to benefit from RGB video, you must have a video display with an RGB compatible SCART input. Progressive scan: DVD offers progressive scan video outputs for use with compatible high-reso- lution televisions and projectors.Before DVD,no consumer medium could store,transmit or display video with full resolution.To conserve bandwidth, analog compression (interlacing) is employed:first the odd-numbered lines of a frame are displayed, followed by the even-numbered lines.The result is that only half of the video image is drawn at one time;the viewers brain must reassemble the com- plete image.This is acceptable,if the monitor is not too large and if there is not too much motion in the image.Large displays and fast-moving images reveal the limitations of this system. Thanks to DVDs immense data capacity,images are now stored intact (progressively),so that all the lines in each frame (odd and even) are shown at the same time.But because most TVs cannot handle a progressive signal,all current DVD play- ers generate an interlaced output for compatibili- ty.Now,the Harman Kardon DVD is among the select few DVD players with true progressive scan video output (NTSC and PAL) for use with com- patible TVs and CRT projectors and with all plas- ma,LCD and DLP display devices via the compo- nent video output.The result is 40% greater light output than a conventional TV and a stunningly detailed high definition image,along with an almost complete absence of visible scanlines and motion artifacts.Of course,traditional Y/Pr/Pb component video,SCART,S-Video and composite video outputs are included for use with conven- tional televisions and projectors. Multiple Angle: DVDs have the capability to show up to four different views of the same scene in a program.When a disc is encoded with multiple-angle information, pressing the Angle button will enable you to switch between these different views. Note that at present, few discs take advantage of this capability and, when they do, the multiple-angle technology may only be present for short periods of time within the disc. Producers will usually insert some sort of icon or graphic in the picture to alert you to the availabil- ity of multiple viewing angles. Reading:This is a message that you will see after youve loaded the disc and the tray has closed. It refers to the fact that the player must first examine the contents of the disc to see if it is a CD or DVD, and then extract the information about the type of material on the disc, such as languages, aspect ratios, subtitles, number of titles and more.The slight delay while the con- tents of the disc are read is normal. Resume:The operation of the Stop Button on the DVD works differently from what you are used to on CD players. On a traditional CD player, when you press the Stop button, the unit does just that: it stops playback. On a CD player, when you press the start button again, the disc starts from the beginning.With the DVD, however, you have two options when playing DVD discs. Pressing Stop once will stop playback, but it actu- ally puts the unit in the Resume mode.This means that you can turn the machine off and, when you press play the next time, the disc will resume or continue from the point on the disc where the Stop button was pressed.This is help- ful if you are watching a movie and must inter- rupt your viewing session but wish to pick up where you left off. Pressing the Stop button twice will stop the machine in a traditional manner and, when the disc is played again, it will start from the beginning. In resume mode, the cover of the DVD will be displayed, if available. Otherwise, the Harman Kardon screen will appear. Terminology RadioFans.CN FEATURES Features High quality video Advanced sophisticated 10-bit MPEG-2 video decoding circuits. Direct RGB output via SCART (selectable) for optimum video performance.SCART connector also configurable for Composite Video output. Pure PAL with NTSC disc due to true NTSC/PAL conversion. Dual-layer compatibility for extended play DVD. Progressive Scan component video ouputs (NTSC and PAL) Playback of JPEG image files High quality digital audio By connecting a DTS (Digital Theater Systems) or a Dolby Digital decoder, you can enjoy high quality 5.1 digital surround sound from DTS or Dolby Digital discs. With linear PCM audio at 16-24 bits and 44-96 kHz (also on digital output, see table page 15), audio quality exceeding that of CD becomes possible. Optical and coaxial digital audio output. Many convenient features On-Screen Menu lcons for disc information or player information and access to many major functions of this unit. Subtitles may be displayed in one of numerous languages*. The multi-angle function allows you to choose the viewing angle of scenes which were shot from a number of different angles (Limited to DVDs recorded with multiple camera angles.) Multiple options for dialog language and soundtrack selection (limited to DVDs record- ed with multiple dialog languages or sound- tracks). Parental lock settings to prevent play of discs unsuitable for some audiences DVD only. Intuitive menu operating system. 4 step Zoom during play and pause. Backlit, ergonomically designed remote control. Future software upgrades accessible via Internet. (See information below.) * The number of languages recorded depends on the software. Compatible with CD as well as DVD The DVD will play any conventional Audio CD or recordable (CD-R) or erasable CD (CD-RW) bearing the logos shown here,MP3,WMA (v8) or any VCD or DVD-Video with the region code 0 or 2. Disc formats supported by this player The unit can play the following disc formats (8 cm and 12 cm size): DVD-Video DVD-R DVD-RW DVD+R DVD+RW CD CD-R CD-RW VCD S-VCD NOTE: Due to differences in the format of certain discs, it is possible that some discs may include a mix of features that are not compatible with the DVD. Similarly, although the DVD is capable of a wide range of features, not all discs include every capability of the DVD system. For example, although the DVD is compatible with multi-angle discs, that feature is only possible when the disc is specially encoded for multiple- angle play. In addition, the DVD is capable of playing back both Dolby Digital and DTS sound- tracks, but the number and types of tracks avail- able will vary from disc to disc.To make certain that a specific feature or soundtrack option is available, please check the options noted on the disc jacket. I Playback capability for CD-R, CD-RW,WMA, JPEG, MP3,VCD/SVCD, DVD-R, DVD+R, DVD- RW and DVD+RW discs may vary due to vari- ations in the quality of the disc and the recorder used to create the disc. Upgradeability via Internet The ”firmware” controlling the functionality of the Harman Kardon DVD is fully upgradeable. In the event of future improvements to its operations and features, it will be possible to download firmware upgrades from All you have to do is create a CD-R with the data and insert it in the DVD for an automatic upgrade. Packing List 1 Harman Kardon DVD Player 1 Remote control 2 AA batteries 1 A/V cable for stereo analog audio and composite video 1 S-Video cable 1 remote extension cable 1 owners manual TECHNICAL SPECIFICATIONS Technical Specifications Applicable Disc:Disc formats: 5 inch (12 cm) or 3 inch (8 cm) DVD Video, Standard conforming DVD+RW, DVD+R, DVD-R and DVD-RW,VCD, CD, CD-R, MP3,WMA, JPEG or CD-RW discs, Regio code: DVD Video disc with Code 2 or 0 only. DVD-Layers: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Single Layer, Dual Side/Dual Layer Audio formats: Linear PCM, MPEG, MLP/CPPM, Dolby Digital or DTS Video Signal System:PAL/NTSC Composite Video Output:1 V p-p/75 Ohms, sync negative polarity S Video Output:Y/Luminance: 1 V p-p/75 Ohms, sync negative polarity C/Chrominance: 0.286 V p-p Component Video Output:Y: 1Vp-p/75 Ohms, sync negative polarity Cr: 0.7Vp-p/75 Ohms Cb: 0.7Vp-p/75 Ohms Analog Audio Output:2 Vrms max Frequency Response:DVD (Linear PCM):2 Hz - 22 kHz +0/-0.5 dB (48 kHz sampling) 2 Hz - 44 kHz +0/-0.5 dB (96 kHz sampling) CD:2 Hz - 20 kHz +0/-0.5 dB Signal/Noise Ratio (SNR):105 dB (A-weighted) Dynamic Range:DVD: 100 dB (18 Bit) / 105 dB (20 Bit) CD/DVD: 96 dB (16 Bit) THD/1kHz:DVD/CD: 0.003 % Wow unplugging the AC power cord and replugging the unit in will sometimes reset it.) Synopsis: Add a 4.7K ohm resistor to the indicated area on the bottom of the Main PCB. CAUTION: The DVD22 is an electrostatically sensitive unit and can be damaged by careless handling; you must follow proper static control procedures to prevent damage to the DVD player. 1) Remove the eight plated screws holding the top cover to the unit; remove the top cover. 2) Remove the four molex connectors and one small FFC cable from the Main PCB. 3) Remove the five plated machine screws (top) and the five black screws (rear panel) from the Main PCB. 4) Remove the Main PCB from the unit. 5) On the reverse side (bottom), solder a 4.7K 1/8W resistor (h/k part#299-4.7K or WLD5.630.472) to the indicated area. (Attach one end of the 4.7K resistor to one end of CB407, the other side, to a small through-hole pad near the silkscreen label “CB410”). 6) Replace the Main PCB and assemble the unit in reverse order. 7) Test the unit. harman/kardon, Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 2 Model Serial Number Status Action DVD22 (120v) WA0007-01000