HarmanKardon-CDR30-cd-sm维修电路原理图.pdf

harman/kardon Model CDR30 Dual Tray CD/CD-R/CD-RW Recorder/Player SERVICE MANUAL CONTENTS SERVICING PRECAUTIONS . . . . . . . . . . . . .2 ESD PRECAUTIONS. 4 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . .5 FRONT PANEL CONTROLS . . . . . . . . 6 FRONT PANEL DISPLAY . . . . . . . . . . 8 REAR PANEL CONNECTIONS. . . . . . 10 REMOTE CONTROL FUNCTIONS. . . . . . . 11 INSTALLATION/CONNECTIONS. .13 BASIC TROUBLESHOOTING GUIDE. 15 SPECIAL NOTES ON CDR30 RECORDING.16 DETAILED TROUBLESHOOTING GUIDE .17 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . .34 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . 37 MECHANICAL PARTS LIST. . . . . . . . . 40 ELECTRICAL PARTS LIST . . . . . . . . . .42 PCB DRAWINGS. . . . . . . . . . . . . . . . . . . . . 61 SCHEMATIC DIAGRAMS . . . . . . 71 WIRING DIAGRAM.88 PACKAGE.90 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 2/2004 RadioFans.CN 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 CDR30CDR30 harman/kardon RadioFans.CN 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 CDR30CDR30 harman/kardon RadioFans.CN 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). CDR30CDR30 harman/kardon www.freeservicemanuals.info SPECIFICATIONS Playback Sampling Frequency 44.1 kHz D/A Conversion 96kHz, Multi-Bit Delta-Sigma Conversion Oversampling 128 Times Playback Specifications Frequency Response 2Hz 20,050Hz Playback S/N 100dB Playback Dynamic Range 100dB Playback THD 0.005% / 88dB Analog Audio Output 1V RMS, 2dB (1KHz 0dB) Digital-Coaxial Output 0.5 Vpp/75 Headphone Output 0.5V RMS/32 Load (1KHz 0dB) Record Specifications Digital Dubbing Mode(X1/X2/X4) Equal to source Digital Input Sample Rate 32kHz 96kHz Signal/Noise Ratio - Analog 91dB Signal/Noise Ratio - External(Source) source -10dB Dynamic Range 91dB THD 0.005%/-85dB Analog Input Sensitivity 330 mV RMS 47k = 0dB Digital Inputs (Direct Recording) 44.1kHz, 100 ppm/min. General Power Requirement 100240V AC, 50/60Hz Power Consumption 26 Watts Dimensions Width 17.3 (440mm) Height 4.4 (112mm) Depth 14.2 (363mm) Weight 10.6 lbs (4.8 kg) Depth measurement includes knobs, buttons and connection jacks. Height measurement includes feet and chassis. All features and specifications are subject to change without notice. CDR30CDR30 harman/kardon www.freeservicemanuals.info 1 Power Switch: Press this switch to apply power to the CDR 30.When the unit is first turned on, the Standby Mode Indicator 2 surrounding the switch will turn green. Once the unit has been turned on with this switch, it may be operated from either the front panel or remote control. Press the switch again to turn the unit completely off. 2 Standby Mode Indicator: When the CDR 30 is in the ON mode, this indicator will glow green.When the unit has been placed in the Standby mode by pressing the Power-Off Button on the remote, the indicator will glow amber, indicating that the unit is still connected to the AC main supply and may be turned on from the remote control. 3 Play (CDP) Deck: This disc drawer is used to play back conventional CD discs, MP3 discs and CD-R or CD-RW discs that have been finalized. 4 Headphone Jack: Connect standard head- phones to this jack for private listening. 5 Headphone Level Control: Turn this control to adjust the volume level to the head- phones. Note that the use of this control will not change the analog output levels at the rear panel audio outputs . 6 Play Deck (CDP) Open/Close: Press this button to open the Play Deck 3. 7 Record Button: Press this button to begin the recording process. See pages 2125 for more information on CD recording. 8 Sync Record Button: Press this button once to begin an automated recording of a sin- gle track from an external CD player when a digital connection is used. Press it twice to begin automated recording of an entire disc. See page 22 for more information on CD Sync recording. 9 1 Track Dub Button: Press this button to begin the process of copying a single track from the CDP deck to a CD-R or CD-RW disc in the CDR deck. ) Dubbing Button: Press this button to begin the process of making a complete copy of the disc in the Play Deck 3 to a CD-R or CD-RW disc in the Record Deck %. See page 21 for more information on dubbing. ! Speed Select Button: Press this button to select the recording speed for internal dubs. See page 21 for more information on selecting the proper speed. Erase Button: Press this button to erase one or more tracks or the entire contents of an unfinalized CD-RW disc.When a CD-RW disc has already been finalized you may erase the entire disc or you may “unfinalize” the disc by erasing the TOC data. See page 24 for more information on erasing CD-RW discs. 29 Front Panel Controls 1 Power Switch 2 Standby Mode Indicator 3 Play (CDP) Deck 4 Headphone Jack 5 Headphone Level Control 6 Play (CDP) Open/Close 7 Record Button 8 Sync Record Button 9 1 Track Dub Button ) Dubbing Button ! Speed Select Button Erase Button # Finalize Button $ Record (CDR) Deck Open/Close % Record (CDR) Deck Optical Digital Input press the CDR button to control the Record Deck Dead batteries Replace both batteries Sensor blocked Remove obstructions from front panel or connect a remote sensor to the Remote-In Jack Disc does not erase CD-R disc in use CD-R discs do not erase, only CD-RW discs may be erased Recorded CD-R disc does not play in CD-R disc not finalized Finalize the CD-R disc in the CDR 30s Record Deck another CD player or DISC ERROR(see page 23) message appears in Play Deck Recording suddenly stops Input source stopped or paused Recordings will stop when the input source is paused for more than 5 seconds for digital recordings and 10 seconds for analog recordings ERROR MESSAGES ERROR MESSAGEEXPLANATION AND PROBABLE CAUSESOLUTION CHECK DISC A record-related button has been pressed when a Unfinalize the disc to add tracks to a CD-RW disc Finalized disc is in the Record Deck % Replace the disc with a blank CD-R or CD-RW disc A record-related button has been pressed when a Replace the disc with a blank CD-R or CD-RW disc standard CD is in the Record Deck % DATA DISC A non-audio CD-ROM or a CD-Video disc has been Only CD Audio, DTS and MP3 discs will play in the CDR 30; placed in the machinereplace the disc DISC ERROR An unfinalized disc has been placed in the Play Deck 3 Finalize the disc (see page 23) A DVD disc has been placed in the unit Replace the disc; the CDR 30 does not play or dub DVD discs DISC FULL There are only four seconds of record time remaining Use another blank CD-R or CD-RW disc on the disc being recorded Erase one or more tracks on a CD-RW disc ERROR The disc is not seated properly Open the drawer and check to see that the disc is properly seated There is a problem with the disc Try another disc FAILED A dub has not been completed properly Check the play disc Repeat the dub process FULL More than 99 tracks have been recorded The CDR 30 does not record more than 99 tracks on a disc NO AUDIO A record-related button has been pressed when Replace the disc with a blank CD-R or CD-RW audio disc a non-audio disc is in the Record Drawer % SVC-1 There is an internal problem with the CDR 30 Contact an authorized Harman Kardon service depot CDR30CDR30 harman/kardon www.freeservicemanuals.info Notice - Important information regarding the use of the harman/kardon CDR 30. 1) Complaint: “I cannot record at x2 or x4 speed. Unit switched back to 1x speed” Possible explanations: a) Programmed play only records at x1 speed. You cannot record at x2 or x4 speeds when programmed dub is attempted (to record only certain tracks on a CD) b) Some brands of CDR do not allow recording at x2 or x4 speed. Try another major brand Maxell, Memorex, Sony,TDK. See list below. c) Disc might be a copy - even a counterfeit disc this will prevent recording at speeds greater than 1X. Try recording off a new store-bought CD you know is not a copy. 2) Due to slight variations in the manufacture of blank CD-R/RW audio discs, and for optimum performance of your CD recorder, harman/kardon recommends that you use blank recording discs manufactured by the following companies: Products from these brands have been tested and certified for use with the CDR 30. While discs from other brands may also work, we cannot guarantee proper operation of the unit when they are used. Recommended CD-R Audio Disc Manufacturers: TDK Electronics Corporation Maxell Corporation of America LG Electronics, Inc. Mitsubishi Electric & Electronics USA, Inc. Ricoh Company, Ltd. Philips Electronics North America Memorex Axia Recommended CD-RW Audio Disc Manufacturers: TDK Electronics Corporation Fuji Photo Film, U.S.A., Inc. LG Electronics, Inc. Memorex Philips Electronics North America Samsung Electronics Co., Ltd. Ricoh Company, Ltd. Axia SANYO-Verbatim CD Company SKC America, Inc. ZeroOne Mitsubishi Electric & Electronics USA, Inc Maxell Corporation of America NOTE: The names shown above are the primary manufacturers, who may also produce discs for other brand names. When in doubt as to the origin of a disc, check with the brand shown on the package. 3) When a CD Audio disc is recorded on a computer, it is often possible to record a set of tracks, finalize the disc, and then add additional tracks and finalize the