HarmanKardon-FL8350-cd-sm维修电路原理图.pdf

harman/kardonModel FL83505 Disc Compact Disc ChangerSERVICE MANUALCONTENTSLASER BEAM/SAFETY PRECAUTIONS . 2SPECIFICATIONS . . 4FRONT PANEL CONTROLS. 6REAR PANEL CONNECTIONS.7REMOTE CONTROL.8TROUBLE SHOOTING GUIDE . 9DISASSEMBLY INSTRUCTIONS . 10MAIN UNIT EXPLODED VIEW. . 15EXPLODED VIEW PARTS LIST. . 16CAROUSEL/MECHANISM EXPLODED VIEW. 17CAROUSEL/MECHANISM PARTS LIST. . 18SERVICE BULLETIN H/K9901. 20SERVICE BULLETIN H/K2000-09. 21ADJUSTMENT PROCEDURES .22AUDIO TEST PROCEDURE.27CIRCUIT DESCRIPTIONS .29I.C. SPECIFICATIONS . 40ELECTRICAL PARTS LIST . 61MECHANICAL PARTS LIST . 70TROUBLESHOOTING FLOW CHARTS. 72BLOCK DIAGRAM . 77PCB LAYOUTS .78SCHEMATIC DIAGRAMS . 90PACKING. 96harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 11/2002RadioFans.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.233?Specification and FeaturesSpecifications? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?FL835044? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Features? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Controls and Switches? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Remote Control Feature? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?FL83505Power SwitchStatus Mode Indicator Information DisplayStatus Mode IndicatorHeadphones JackHeadphones LevelHeadphones Jack CD DrawerOpen/ CloseTime ButtonRepeat ButtonIntro ButtonClear ButtonProgram ButtonOpen/ CloseRandom ButtonPause ButtonPlay ButtonStop ButtonSkip ButtonSearch ButtonDisc Skip ButtonDisc Select ButtonsInformation DisplayRemote Sensor: Press this switch to change the FL8350 from STANDBY to ON. When the unit is first connected to AC power, the will turn Amber (STANDBY mode). Press this switch to turn the unit ON; indicator will Green and the will illuminate. Press the switch again to turn the unit off, in STANDBY mode. When the FL8350 is connected to a switched AC outlet, such as those found on the back of many audio products, when power is applied it will return to whatever state it was left in previously, whether ON or STANDBY. In this case, when always left ON, further use of the power switch is not needed.: When the FL8350 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 FL8350s . 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.: 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 FL8350 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 either side of this button to move to the next track , or to move back to the previous track on the disc being played.: Press either side of this button to search forward or backwards through a disc to locate a particular portion of the selection of the disc being played.: Press this button to change to the next disc. If a disc position is empty, the FL8350 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 FL8350.: The sensor behind this window receives commands from the remote control. Keep this area clear if you wish to use the FL8350 with a remote control.PowerPhonesPhones LevelFL 8350TimeRepeatIntroClearProgramOpen/ClosePausePlaySkipStopRandomSearch321Disc Skip54MININTRODISCTRACK13245SEC1616112717123818134919145102015REPEAT 1A-BRANDOMALL 1 DISCSPROGRAM1133322244556678910111111101515161719202020212112121313141418Front Panel Controls1789161718195FL83506MADE IN CHINAMODEL NO: FL8350HARMAN 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.NRTL/CCSA 22.2LR46800UL 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 is controlled, make certain that the switch is in the ON position.Connect this jack to the coaxial digital input of an external digital-to-analog converter for direct access to the digital signals of the FL8350. DO NOT connect this jack to the standard audio inputs of any device.Connect the 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 FL8350 with optional, external control systems.Connect this jack to the input of another compatible Harman Kardon remote controlled device to have the remote sensor on the FL8350 provide signals to other products.Connect these jacks to the CD audio inputs of your receiver, surround processor or preamplifier.AC Power CordCoaxial Digital OutputRemote Control InputRemote Sensor Remote Control OutputFixed Audio Outputs21124536FL83507. Press this button to open or close the disc drawer. The drawer may also be closed by pressing the button . DO NOT push the drawer, as damage to the transport mechanism may result. 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 FL8350 will immediately search for the track and begin to play it. For tracks 1 through 10 on a disc, you need only press the desired number. For tracks 10 and above, press the button to select the first digit of the track number, and then press the second digit from these numeric buttons. These buttons are also used to enter track numbers into the memory for pre-programmed play lists. Press this button to select the first digit of a track number above 10. Each press of the button increases the first digit one increment. Press it once to start accessing tracks 10 through 19 twice to start accessing tracks 20 through 29, and so forth. For example, to select track 22, press the button twice, and then press the button . 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 put a disc into play, and to have all of the tracks played in a random order. Press this button once to momentarily stop a disc. When the button is pressed again, the disc will resume play at the point it was stopped. Press this button to put the FL8350 into the Intro Scan mode. When you press this button, the unit will play the first 15 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 select the time display. 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 a third time to view the total play time remaining for the disc in play. 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 once to constantly 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 FL8350 will automatically search for the next position that contains a disc.Open/ Close Button:PlayDisc Select Buttons:Numeric Buttons:10+10 Button:+102Search Buttons:Skip Buttons:Stop Button:Play Button:Random Button:Pause Button:Intro Button:Time Button:Clear Button:Program Button:Repeat Button:Disc Skip Button:PROGRAM321456CLEARTIME98745DISC SKIPREPEAT10+10INTRORANDOMSEARCHSKIPDISC NO.123OPEN/CLOSE12456378910111213141516FL 8350Remote Control Functions24456331418789101112131415166FL83508TroubleshootingSYMPTOMNo lights on Front PanelRemote does not appear to operate Front panel lights, but CD does not playPlay indicator lights, but no sound is heardSound skips or stutters during playSound is continually distortedCAUSE No AC power Main Power Switch turned off Weak batteries Blocked sensor Disc upside down Moisture inside unit Poor connections Wrong source selected Disc may be damaged Surface vibrations Incorrect inputSOLUTION Make certain that the AC power cord is plugged into a live outlet. Turn on Main Power Switch. Install fresh batteries, observing polarity indications. Remove obstructions from the front panel sensor orconnect a remote sensor to the Remote Injackon the rear panel. Reload disc with label side facing up. Leave the unit turned ON for 30 minutes to allowmoisture to evaporate. Make certain connections are secure and madeto the correct (e.g., CD) input. Select CD source on receiver or preamp. Try another disc. Isolate the unit from vibration by placing it on afirm surface or move it further away from speakers. Make certain that the FL8350 is connected to a line-level audio input, NOT a digital audio or phono input.Troubleshooting Guide FL8350 CD Changer (English) 7/11/00 9:30 AM Page 18FL8350harman/kardon910FL835011FL835012FL835013FL835014FL8350FL8350harman/kardonFL8350 harman/kardon15FL8350 harman/kardon17harman/kardon Service BulletinService bulletin # H/K9901 Rev1 November 2002Warranty Labor Rate: Major Repair To: All harman/kardon Service Centers Models: FL8350/FL8550 Subject: “No disc” reading in displayWhen a CD is in the carousel at the play position, Infra red light emitted by IR LED D3 is reflected onto IR Photosensor D2. D3 and D2 are on the PCB located underneath the carouse