HarmanKardon-FL8370-cd-sm维修电路原理图.pdf

harman/kardon Model FL8370 5 Disc Compact Disc Changer SERVICE MANUAL CONTENTS LASER BEAM SAFETY PRECAUTIONS .2 OTHER PRECAUTIONS . 3 SPECIFICATIONS . 4 FRONT PANEL CONTROLS. . . 6 REAR PANEL CONNECTIONS. 7 REMOTE CONTROL FUNCTIONS.8 TEST PROCEDURE. 9 BLOCK DIAGRAM .11 DISASSEMBLY PROCEDURE.12 GENERAL UNIT EXPLODED VIEW I, II . .17 CIRCUIT DESCRIPTION. . . 23 BASIC TROUBLESHOOTING 30 DETAILED TROUBLESHOOTING .31 SEMICONDUCTOR IDENTIFICATION. 37 ELECTRICAL PARTS LIST . 68 MECHANICAL PARTS LIST . 80 PRINTED ClRCUlT BOARDS . . 83 SCHEMATIC DIAGRAMS. 92 PACKAGE .95 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 11/2000 RadioFans.CN 收音机爱 好者资料库LASER BEAM SAFETY PRECAUTIONSCLASS 1 LASER PRODUCTCAUTIONInvisible laser radiation when the unit is open.Do not stare into beam.CAUTION: USE OF ANY CONTROLS, ADJUSTMENT, ORPROCEDURES OTHER THAN THOSE SPECIFIED HEREINMAY RESULT IN HAZARDOUS RADIATION EXPOSURE.Do not look directly at the laser beamcoming from the pickup or allow it tostrike against your skin.This compact disc player uses a pickup that emits a laser beam. The laser beam is emitted from thelocation shown in the figure. When checking the laser diode, be sure to keep your eyes at least 1 foot awayfrom the pickup lens when the diode is turned on. Do not look directly at the laser beam.CAUTION:Using controls and adjustment, or doing procedures other than those specified herein, may result inhazardous radiation exposure.2RadioFans.CN 收音机爱 好者资料库SAFETY PRECAUTIONSThis symbol is intended to alert the user tothe presence of uninsulated dangerousvoltage within the products enclosure thatmay be of sufficient magnitude to consti-tute a risk of electric shock to persons.This symbol is intended to alert the user tothe presence of important operating andmaintenance (servicing) instructions in theliterature accompanying the appliance.Caution:To prevent electric shock do not use this(polarized) plug with an extension cord, recep-tacle or other outlet unless the blades can befully inserted to prevent blade exposure.Attention: Pour prevenir les chocs electriques ne pasutiliser cetre fiche polarisee avec unprolongateur, une prise de courant ou une au-tre sortie de courant, sauf si les lames preventetre inserees a fond-sans en laisser aucunepartie a decouvert.HANDLING LASER PICKUPThe laser diode in the optical system of this player can be damaged by electrostatic discharge fromyour clothes or your body. Proper electrostatic grounding for service personal is required during servicing.BEFORE REPAIRING THE COMPACT DISC PLAYERPreparationHuman Body Grounding:Many of the components used in this compact disc player, including the laser pickup, are sensitive toelectrostatic discharge. Service personal should be grounded with an electrostatic armband (1 Mohm).Caution:Static charge on clothing does not escape through a body grounding wrist band.Be careful not to contact the pickup or electrical components with your clothing.Workbench and Tool Grounding:A properly-grounded electroconductive plate (1Mohm) or metal sheet should be fitted to the workbenchsurface. Tools and instruments (such as soldering irons and scopes) should be grounded to prevent ACleakage.Note: Laser diodes are so susceptible to damage from static electricity that, even if a static discharge doesnot ruin a diode, it can shorten its life or cause it to work improperly.WARNINGTo prevent fire or shock hazard, do notexpose the unit to rain or moisture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ower SwitchStatus-Mode IndicatorInformation DisplayStatus-Mode IndicatorStatus Mode IndicatorHeadphones JackHeadphones Level ControlHeadphones Jack CD DrawerOpen/ CloseTime ButtonRepeat ButtonIntro ButtonClear ButtonProgram ButtonOpen/ Close ButtonRandom ButtonPause ButtonPlay ButtonStop ButtonSkip ButtonSearch ButtonDisc Skip ButtonDisc Select ButtonsInformation DisplayRemote Sensor: Press this switch to apply power to the Fl8370. When the FL 8370 is first turned on by pressing this switch, the will turn green, and the will illuminate. Press the switch again to turn the unit off; the will turn amber, indicating that the unit is in a Standby mode. When the FL 8370 is connected to a switched AC outlet, such as those found on the back of many audio products, it will return to the Standby mode when power is applied to the switched outlet without any further press of the switch.: When the Fl8370 is in the ON mode, this indicator will glow green. When the unit is off, the indicator will glow amber, indicating that the unit is still connected to the AC mains supply.: Connect a set of standard headphones to this jack for private listening.: Turn this knob to increase or decrease the volume level for headphones connected to the FL8370s . Note that changing this level will not change the sound level for the units main output, as that remains constant.: This drawer holds the discs that will be played. Press the button to open the drawer so that discs may be inserted.: Press this button to select the time display. In normal operation, this display will show the running time of the track being played. Press the button once to check the time remaining for the track in play. Press this button again to view the total play time remaining for the disc in play. : Press this button once to constantly repeat the track currently being played. Press it a second time to repeat the entire disc.: Press this button to put the Fl8370 in the Intro Scan mode. When you press the button, the unit will play the first 10 seconds of each track on the disc, and then move to the next track. Press the button again to defeat the function and continue full play of the current track.: Press this button to remove tracks from a programmed sequence. Each press of the button will remove one track, starting with the last track programmed to play.: This button is used to program the playback of a disc in a particular order.: Press this button to open or close the disc drawer. DO NOT push the drawer to close it or damage to the transport mechanism may result.: Press this button to put a disc into play, and to have all of the tracks played in a random order.: Press this button once to momentarily pause a disc. When the button is pressed again, the disc will resume play at the point it was paused.: Press this button to start the playback of a CD. If the CD drawer is open, pressing this button will automatically close the drawer.: Press this button to stop the disc currently being played.: Press one side of this button to move to the next track or the other side of the button to move back to the previous track on the disc being played.: Press one side of this button to search forward or the other side of the button to search backwards through a disc to locate a particular portion of the disc being played.: Press this button to change to the next disc. If a disc position is empty, the FL8370 will automatically search for the next position that contains a disc.: Press one of these buttons to select the disc in a specific position in the CD drawer.: This display provides details about the operation of the FL 8370.: The sensor behind this window receives commands from the remote control. Keep this area clear if you wish to use the FL 8370 with a remote control.HDCD Indicator: This LED will light automatically when a CD with HDCD encoding is playing. No further action is needed to enjoy the benefits of HDCD.PowerPhonesPhones LevelFL 8370TimeRepeatIntroClearProgramOpen/ClosePausePlaySkipStopRandomSearch321Disc Skip5413245678910111110151617192020222121221212131314141518Front Panel Controls13322456112078916171819FL83706MADE IN CHINAMODEL NO: FL8370HARMAN KARDONNORTHRIDGECALIFORNIA, U.S.A.AC 117V / 60Hz20WAC INPUT This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.CUSCAN/CSA-C22.2 No.1-96LR46800UL 1270LEFTRIGHTINOUTAUDIO OUTPUTREMOTEDIGITALOUTPUTWARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.PRODUCT COMPLIES WITH DHHSRULES 21CFR SUBCHAPTER J,APPLICABLE AT DATE MANUFACTURED:(YCL).SERIAL NO.SHOCK HAZARD : DO NOT OPEN.AVIS:RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.SHOCK HAZARD : DO NOT OPEN.AVIS:RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENRISK OF ELECTRIC SHOCKDO NOT OPEN24531Rear Panel ConnectionsConnect this plug to an AC outlet. If the outlet is switch controlled, make certain that the switch is in the ON position.Connect this jack to the coaxial-digital input of a digital audio/ video receiver or an external digital-to-analog converter for direct access to the digital signals of the FL8370. DO NOT connect this jack to the standard audio inputs of any device.Connect this jack to the input of anther compatible Haman Kardon remote controlled device to have the remote sensor on the Fl8370 provide signals to other products.Connect this output of a remote infrared sensor or the remote control output of another compatible Harman Kardon product. This will enable the remote control system to operate even when the front panel is blocked. It will also allow use of the Fl8370 with optional, external control systems.Connect these jacks to the analog CD audio inputs of your receiver, surround processor or preamplifier.AC Power CordCoaxial Digital OutputRemote Control InputRemote Control OutputRemote SensorFixed Audio Outputs2112453FL8370CLASS 1 LASER PRODUCT are registered trademarks of Pacific Microsonics, Inc. and High Definition Compatible Digital HDCD7. Press one of these buttons to select the disc in a specific position in the CD drawer. Press these buttons to select a specific track on a disc. The FL8370 will immediately go to the track and begin to play it. These buttons are also used to enter track numbers into the memory for preprogrammed-play lists. Press these buttons to search forward or backwards through a disc to locate a particular portion of the selection being played. Press one of these buttons to move to the next track , or to move back to the previous track on the disc being played. Press this button to stop the disc currently being played. Press this button to start the playback of a CD. If the CD drawer is open, pressing this button will automatically close the drawer. Press this button to play all of the tracks on a disc in a random order. Press this button once to momentarily pause a disc. When the button is pressed again, the disc will resume play from the point at which it was paused. Press this button to put the FL8370 into the Intro Scan mode. When you press this button, the unit will play the first 10 seconds of each track on the disc, and then move to the next track. Press the button again to defeat the function and continue full play of the current track. Press this button once to continuously repeat the track currently being played. Press it a second time to repeat the entire disc. Press this button to change to the next disc. If a disc position is empty, the FL8370 will automatically search for the next position that contains a disc.Disc Select Buttons:Numeric Buttons:Search Buttons:Skip Buttons:Stop Button:Play Button:Random Button:Pause Button:Intro Button:Repeat Button:Disc Skip Button:Clear Button:Program Button:Time Button: Press this button to remove tracks from a programmed sequence. Each press of the button will remove one track, starting with the last track programmed to play. This button is used to program the playback of a disc in a particular order. In normal operation, the display will show the running time of the track being played. Press the button once to check the time remaining for the track in play. Press the button again to view the total play time remaining for the disc in play.Remote Control Functions246810912114135781314FL8370321456REPEATINTRO987345DISC SKIP0PROGRAMTIMECLEARRANDOMSEARCHSKIPDISC NO.TRACK NO.12FL 83701013452678911101213148FL8370Audio Characteristics Test Procedure Test Equipment1. 3346 CD Player Evaluating Filter x 2 (NF Electronic Instrument)2. VP7722 Panasonic Audio Analyzer3. Sony YEDS18 Test CD discProcedureEquipment Setup1. The audio output of the CD player under test is connected to the CD filter L& R inputs.2. The outputs from the filter are connected to the Audio Analyzer.Check the output Voltage1. Set the mode of the filter to THRU2. Set the mode of Audio Analyzer to LEVEL mode3. Select track 2 of the test disc and play the CD disc4. The output voltage and gain of the R & L channels are taken by pressingthe respective buttons on the control board of Audio Analyzer.Frequency Response1. Set the mode of the filter to reference level mode.2. Select the track 3, 4, 5, and 6 of the test disc and run it under Play mode.3. Check the output of the R & L ChannelsTotal Harmonic Distortion1. Set the mode of the filter to DIST/CH-SP mode2. Set the audio analyzer to DIST mode.3. Set the unit of the audio analyzer to % mode4. Select the track 2, 4, and 5 on the test disc and run them under PLAYmode5. Check the % of each R & L channels9FL8370Signal to Noise Ratio1. Set the mode of the filter to S/N mode2. Play track 2 of the test disc3. The unit of the audio analyzer is set to dB mode4. Press the S/N key on the control panel of the audio analyzer5. Play track 76. Measure the data of S/N ratioDynamic Range1. Set the mode of the filter to D-Range mode2. Set the audio analyzer to DIST Mode3. Set the unit of the audio analyzer to dB mode4. Play track 17of the test disc5. The dynamic range should be |A| + 60dBChannel Separation1. Set the mode of the filter to DIST/CH-SP mode2. Set the audio analyzer to LEVEL mode3. Play the tracks 8, 9, 10 & 114. The measured results is the difference between L & R channelDe-emphasis1. Press the THRU button of the CD filter2. Play the track 2 of the test disc3. Press the Relative Level and make it ON4. Select the track 12 and 13 and measure the L & R channels value10FL83707011FL8370FL837012FL837013FL837014FL837015FL837016FL837017Model : FL8370 Exploded drawing List? ?!?# ?$%&? ?(?$(! ?)? ?(*?%? ?+?)? ?%)?!,?-?(?)? ?.?! *$?!? ?(? ?!?/?-?+,?%,?$?!?/?.?)? ? ?!?,?(?012?3%&?/?/?4?(,? ?1/?/?/?4?(,? ?1?56?(?1?/?56?(?1/?.?7?.? ?+ ?8?/?#-?# ?$?(?$(! ?-?(?$?*?(?$(! ?.?(!?/?7#? ?(*?.?$?*?.?9