HarmanKardon-DVD5-cd-sm维修电路原理图.pdf
harman/kardon DVD5 DVD5 FIVE DISC DVD/CD CHANGER SERVICE MANUAL CONTENTS PRECAUTIONS. .1 ESD WARNING.3 SPECIFICATIONS.4 DETAILED SPECIFICATIONS.5 FRONT PANEL CONTROLS.7 INFORMATION DISPLAY.8 REAR PANEL CONNECTIONS.9 REMOTE CONTROL FUNCTIONS.10 INSTALLATION/CONNECTIONS.12 TROUBLESHOOTING GUIDE.16 DVD5 REVISION.17 GENERAL UNIT EXPLODED VIEW (120V).18 GENERAL UNIT EXPLODED VIEW (230V).19 MECHANICAL PARTS LIST.20 TRAY/CAROUSEL EXPLODED VIEW.21 TRAY/CAROUSEL PARTS LEGEND .22 BLOCK DIAGRAM23 POWER SUPPLY SCHEMATIC-rev1.24 POWER SUPPLY PARTS LIST rev1.25 POWER SUPPLY SCHEMATIC-rev2.27 POWER SUPPLY PARTS LIST rev2.28 BULLETIN HK2002-05.33 BULLETIN HK2003-01.34 ELECTRICAL PARTS LIST.39 IC BLOCK DIAGRAMS.49 P.C. BOARDS.69 SCHEMATIC DIAGRAMS.77 SCHEMATIC DIAGRAMS (230v).101 PACKING MATERIALS.107 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev2 1/2005 RadioFans.CN 1 SERVICING PRECAUTIONS NOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage 1) The pick-up should always be left in its conductive bag until immediately prior to use. 2) The pick-up should never be subjected to external pressure or impact. 2. Repair notes 1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials. 2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or damage to the printed-circuit board. 3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched. 4) Laser beams may damage the eyes! Absolutely never permit laser beams to enter the eyes! Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged. 5) Cleaning the lens surface If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cot- ton swab should be used, taking care not to distort this. 6) Never attempt to disassemble the pick-up. Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up. Storage in conductive bag NEVER look directly at the laser beam, and dont let contact fingers or other exposed skin. Magnet How to hold the pick-up Conductive Sheet Cotton swab Pressure Pressure Drop impact DVD5 harman/kardonDVD5 harman/kardon RadioFans.CN 2 NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations 1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These compo- nents are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care. 2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnetism is present, or where there is excessive dust. 2. Notes for repair 1) Before replacing a component part, first disconnect the power supply lead wire from the unit 2) All equipment, measuring instruments and tools must be grounded. 3) The workbench should be covered with a conductive sheet and grounded. When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is because there is the possibility of damage by static electricity.) 4) To prevent AC leakage, the metal part of the soldering iron should be grounded. 5) Workers should be grounded by an armband (1M) 6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband. 7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin. Resistor (1 Mohm) Conductive Sheet Resistor (1 Mohm) Armband DVD5 harman/kardonDVD5 harman/kardon RadioFans.CN 3 ESD PRECAUTIONS Electrostatically Sensitive Devices (ESD) Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components com- monly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated cir- cuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive sur- face such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical charges sufficient to damage ESD devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD devices. 6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials). 7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed. CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER SAFETY PRECAUTIONS. 8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can gen- erate static electricity sufficient to damage an ESD device). D DV VD D5 5 h ha ar rmma an n/ /k ka ar rd do on n 250 Crossways Park Drive,Woodbury, New York 11797 2000 Harman Kardon, Incorporated Part #J9020000300X Applicable Discs:5-inch (12cm) or 3-inch (8cm) DVD-Movie, CD or CD-RW discs Region 1 DVD-Movie discs DVD: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Dual Layer Linear PCM, Dolby Digital or DTS Audio Video Signal System:NTSC Composite Video Output:1V p-p/75 , sync, negative polarity S Video Output:Y/Luminance: 1V p-p/75 , sync, negative polarity C/Chrominance: 0.286V p-p Component Video Outputs:Y: 1V p-p/75 , sync, negative polarity Pr: 0.648V p-p/75 Pb: 0.648V p-p/75 Analog Audio Output:2.0V RMS 0.2 Coaxial Digital Audio Output: 0.5V p-p/75 Optical Digital Audio Output: 1.6V p-p Frequency Response:4Hz 22kHz 0.5dB (48kHz sampling) Dynamic Range:DVD: 105dB (20-bit) CD: 100dB Channel Separation:90dB THD:DVD: 0.0035% CD: 0.0035% Signal to Noise:100dB Wow as long as the tray is not opened or the disc changed, DVD playback will continue from the same point on the disc when the Play Button g is pressed again. Resume will also work if the unit is turned off.To totally stop a disc, press the button twice. k Next Button: Press this button to move forward through the music tracks on a CD disc or the chapters on a DVD disc. l Previous Button: Press this button to move backward through the music tracks on a CD disc or the chapters on a DVD disc. m Random Button: Press this button to begin the playback of all tracks on a disc in random order. n Disc-Skip Button: Press this button to move to the next available disc in the tray. o Numeric Keys: Press these keys to enter data for sequential programming, to enter or change the access password for parental con- trol, to enter a language code, or to respond to menu options presented by a disc. p Repeat Button: Press this button to select a Repeat-Play mode. Each press of the button shows the choice selected in either the on-screen Status Banner display or in the Repeat Indicators H. q Repeat A-B Button: Press this button once to begin the selection of a portion of a disc to be repeated. Press it again to choose the end point of the repeat-play selection. r Light Button: Press this button to acti- vate the remotes backlighting so that the keys are visible in low-light conditions. s Clear Button: Press this button to remove the Status Banner or other displays from your video screen.This button is also used to clear items from Programmed Play lists. (See page 29.) t Check Button: When a CD is playing, press this button to check the status of the current disc via the on-screen display.This button is also used to verify the contents of a programmed play list via the front panel Information Display. (See page 28 for more information about programming the DVD 5.) u Program Button: When the unit is stopped, press this button to display the program menu and enter a programmed play sequence.When a disc is playing, press this button to switch between normal play and programmed playback. v Step Buttons: When a DVD disc is play- ing, press these buttons to move forward or backward one frame at a time. Press the Play Button g/ to resume normal play.These buttons do not function when a CD is playing. w Slow-Play Buttons: When a DVD disc is playing, press these buttons to move forward or backward through the disc in slow speed. Each press of these buttons changes the slow-play speed in the following order: 1/16 Normal Speed 1/8 Normal Speed 1/4 Normal Speed 1/2 Normal Speed. To resume normal play, press the Play Button g/.These buttons do not function when a CD is playing. x Pause Button: Press this button to stop the disc in use.To resume playback, either press the Pause Button again or press the Play Button g/. y Forward Search: Press this button to move forward through a CD or DVD at one of four speeds. Each press and release will increase the search speed, in the following order: F. Search x 2 F. Search x 4 F. Search x 8 F. Search x 16. Once you have selected the desired speed, release the button and the disc will continue to search at fast speed.To resume normal playback speed, press the play button. z Subtitle On/Off Button: When a DVD is playing, press this button to turn the subtitle display on or off. Menu Button: This button has two func- tions.When a DVD disc is playing, press this button to stop the disc playback and display the DVDs main menu screen for the current title. When the unit is stopped, press this button to display the Setup Menu. Title Button: When a DVD disc is play- ing, press this button to display the discs Title Select Menu. If the disc does not offer this func- tion, a symbol (X) will appear on the screen to indicate that there is only one title on the disc or that the disc does not allow this feature. Power-Off Button: Press this button to place the unit in the Standby mode. Angle Button: When a DVD encoded with multiple-angle information is playing, press this button to change the angle in use. Note that this function is only available on discs that are specially prepared to take advantage of the multiple-angle function, and only for those parts of the disc that are recorded with multiple-angle content.The DVD 5 will display a camera icon on the screen to indicate when this feature is available. Subtitle Button: When a DVD disc is playing, press this button to change the subtitle choice.To actually turn the subtitles on or off, press the Subtitle On/Off Button z. 31 30 29 28 D DV VD D5 5 h ha ar rmma an n/ /k ka ar rd do on n 12 INSTALLATION AND CONNECTIONS Installation Connections will vary, depending on the type of audio and video components used with your DVD 5. However, regardless of the complexity of your system, the installation guidelines on pages 1114 should always be followed to ensure a safe installation and reliable operation of the product. Important Note: To prevent possible damage to your speakers or other components in your home entertainment system, we strongly rec- ommend that ALL system components, includ- ing the DVD 5, be turned off and unplugged from their AC power source when any connec- tions are made or a new component is installed. Placement of the DVD 5 Since the laser transport mechanism and carousel tray in the DVD 5 are precision instru- ments that are designed and manufactured to precise tolerances, they are subject to interfer- ence from vibration.To minimize the possibility of skipping during playback, it is recommended that the unit be placed on a level, solid, vibration-free surface. When installing the DVD 5 in a cabinet or tight space, always make certain that there is enough room in front of the unit for the disc tray to open fully, and that there is enough space above the unit so that discs may easily be inserted into the spaces in the tray. As the disc drawer extends out about six inches from the front of the unit when it is open, you should also make certain that there is sufficient clearance in front of the unit to accommodate the disc drawer without it bumping into other objects or getting in the way of anyone walking in front of the unit. In addition to the safety considerations outlined on page 4, it is also recommended that the DVD 5 not be placed in a location that is sub- ject to direct sunlight or extreme heat or cold, as these conditions may damage the discs used in the player, or the player itself. Note that audio amplifiers or high-power receivers, as well as certain other electronic products, can generate significant heat. For that reason, do not place the DVD 5 directly on top of an amplifier, receiver, or other heat source. Always allow at least one inch of free space on all sides of the DVD 5 as well as around other electronic products to allow for proper ventilation. Installation Options The diagrams on pages 1214 describe the three basic ways to connect the DVD 5 to your system components. I Option #1: Use this setup if all audio and video connections from the DVD 5 will go directly to a television set or video projector without the use of an A/V receiver or surround processor. I Option #2: Use this setup if th
