Yamaha-CDRD651-cd-sm 维修电路原理图.pdf

CDR-D651SERVICE MANUALCOMPACT DISC RECORDERCDR-D651100732I CONTENTSTO SERVICE PERSONNEL . 1REAR PANELS . 3SPECIFICATIONS. 4INTERNAL VIEW . 4DISASSEMBLY PROCEDURES . 56TEST MODE . 78ERROR MESSAGE. 910-COM DATA . 1115BLOCK DIAGRAM. 1617PRINTED CIRCUIT BOARD . 1823SCHEMATIC DIAGRAM . 2425PARTS LIST. 2637DISPLAY DATA . 38REMOTE CONTROL TRANSMITTER . 39IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product owners that any service required should be performed by an authorizedYAMAHA Retailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, andservice departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitableand specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, pleasecontact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.CDR-D651P.O.Box 1, Hamamatsu, JapanRadioFans.CN 收音机爱 好者资料库CDR-D6511WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food.I TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked sand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.WARNING: Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation, which maycause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used duringservicing of the unit.1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away fromthe laser pick-up unit at all times. Do not state the laser beam at any time.2) Do not attempt readjustment, disassemble or repair of the laser pick-up, unless noted elsewhere in this manual.3) CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result inhazardous radiation exposure.Laser Emitting conditions:1) When the Top Cover is removed, and POWER SW is turned to the ON position, the laser component will emit a beamfor several seconds to detect if a disc is present. During this time (5 - 10 sec.) the laser may radiate through the lens of thelaser pick-up unit. Do not attempt any servicing during this period!If no disc is detected, the laser will stop emitting the beam. When a disc is set, you will not be exposed to any laseremissions.2) The laser power level can be adjust with VR on pick-up PWB, however, this level has been set by the factory prior toshipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual.Adjustment of this control can increase the laser emission level from the device.RadioFans.CN 收音机爱 好者资料库CDR-D651ANALOGDIGITALLINE ININLINE OUTOUT43LRLRRECPLAYOPTICALB, G, R modelsA, B, G, R models2PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGThis set employs a laser. Therefore, be sure to carefullyfollow the instructions below when servicing .1. Laser Diode PropertiesCD (Drive A)G Material: GaAlAsG Wavelength: 790 nmG Emission Duration : ContinuousG Laser Output: max. 180 W*G ANSI Class: Class 1CDR (Drive B)G Material: GaAlAsG Wavelength: 790 nmG Emission Duration : PulseG Laser Output: Write mode: max. 10 mW* (Duty 50%)G ANSI Class: Class 2*This output is the value measured at a distance ofabout 200 mm from the objective lens surface on theOptical Pick-up Block.2. When checking the laser diode emission, keep youreyes more than 30 cm away from the objective lens.VARO!:AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLELASER-STEILYLLE. L KATSO STEESEEN.VARNING!:OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.CDR-D651ANALOGDIGITALVOLTAGE SELECTORLINE ININLINE OUTOUT43LRLRRECPLAYOPTICALMODEL NO. CDR-D651110/120/220/240VOLTS50/60HzMADE IN MALAYSIA24WATTSV621710 (R)-1SEMKOVERIFIEDANALOGDIGITALLINE ININLINE OUTOUT43LRLRRECPLAYOPTICALMODEL NO. CDR-D651230VOLTS50HzMADE IN MALAYSIA24WATTSV610410 (B,G)-1EMCANALOGDIGITALLINE ININLINE OUTOUT43LRLRRECPLAYOPTICALMODEL NO. CDR-D651240VOLTS50HzMADE IN MALAYSIA24WATTSN89V610400 (A)-1ANALOGDIGITALLINE ININLINE OUTOUT43LRLRRECPLAYOPTICALMODEL NO. CDR-D651120VOLTS60HzMADE IN MALAYSIA24WATTSV610390 (U,C)-13I REAR PANELSB, G modelU, C modelsA modelR modelCDR-D651435 (17-1/8)Unit : mm (inch)117 (4-1/4)17 (11/16)100 (3-15/16)285 (11-1/16)4I SPECIFICATIONSI Audio PerformanceFrequency ResponsePlayback (5Hz to 20000Hz)0 0.5dBSignal to Noise Ratio (IHF-A-Network)Playback100dBRecording90dBTotal Harmonic Distortion (1kHz)Playback0.004%Recording0.02%Dynamic RangePlayback95dBRecording85dBI Laser Diode PropertiesCD (Drive A)MaterialGaAlAsWavelength780 25nmEmission durationContinuousLaser outputMax: 180WCDR (Drive B)MaterialGaAlAsWavelength780 5nmEmission durationPulseLaser outputWrite mode: Max 10mW (Duty 50%)I InputsLINE IN (REC)TypePin jackStandard input level700mV / 20kDIGITAL IN OPTICALTypeSquare optical connector jackI OutputsLINE OUT (PLAY)TypePin jackStandard output level (1kHz, 0dB)2.0 0.5VrmsDIGITAL OUT OPTICALTypeSquare optical connector jackPHONESStandard output level(150 short / input -20dB)300mV DIMENSIONS12345678I INTERNAL VIEW1 OPE P.C.B. (7)2 OPE P.C.B. (3)3 OPE P.C.B. (2)4 OPE P.C.B. (4)5 CD Drive Mechanism Unit6 OPE P.C.B. (1)7 OPE P.C.B. (5)8 MAIN P.C.B. (Top side),CD-R Drive Mechanism Unit (Bottom side)I GeneralPower SupplyU, C modelsAC120V, 60HzB, G modelsAC230V, 50HzA modelAC240V, 50HzR modelsAC110/120/220/240V, 50/60HzPower Consumption24WDimensions (W x H x D)435 x 117 x 285mm(17-1/8 x 4-1/4 x 11-1/16)Weight5 kg (13lbs. 14oz.)FinishBlack, Titan (G model)AccessoriesRCA Pin Cables x 2Optical Fiber Cable x 1Remote Control TransmitterBatteries x 2* Specifications subject to change without notice.U . U.S.A. modelC . Canada modelG. Europe modelB . British modelA . Australia modelR . General modelCDR-D651891123446577Frame/CDRCB105ACB307CB301CB202AAA5I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.) Disconnect the power cord from the AC outlet.1. Removal of Top Covera. Remove 4 screws (1) and 3 screws (2) in Fig. 1.b. Remove the Top Cover.2. Removal of Front Panela. Remove 2 screws (3) and 4 screws (4) in Fig. 1, andthen remove the Frame/CDR.b. Disconnect 3 connectors (CB105, CB301, CB307 inFig. 2) from the MAIN PCB and a connector (CB202 inFig. 2) from the OPE PCB (6).c. Remove a screw (5) in Fig. 1 fixing the OPE PCB (5).d. Remove 4 screws (6) and 2 screws (7) in Fig. 1.e. Release 2 hooks at the right and left of the Front Panelin Fig. 1, and then remove the Front Panel forward.3. Removal of Tray (applicable to both CD drive andCD-R drive models)a. Remove the Front Panel.b. Check that the pick-up is in the inner track position. If itis not, move it to the inner track position. (At this time,never touch the lens.)c. Lower the pick-up mechanism by turning the gear onthe front face of the drive to the right. (Fig. 3)d. Pull out the Tray forward.e. While pushing the lever (8) toward the left, lift up thelever (9). Then with the lever held up, remove the Trayby pulling it forward. (Fig. 4)*If the pick-up is not at a position along the innertrack on the CD-R drive side, perform the followingprocedure.a. Disconnect all connectors of the Main PCB.b. Remove 4 screws (A) fixing the Main PCB. (Fig. 2)c. Remove the Main PCB.d. Move the pick-up to a position along the inner trackby pushing it lightly with finger. (At this time, nevertouch the lens.)Fig. 1Fig. 2Fig. 3Fig. 4CDR-D651ABABABDEConnectorConnectorBBBCCC0A64. Removal of Pick-up Mechanism on CD drive sidea. While pushing the claw (0) to the left, release the pinon the left side of the Pick-up Mechanism Unit from theCD mechanism chassis. (Fig. 5)b. Release the pin on the right side by sliding the Pick-upMechanism Unit toward the left, and then slide the Pick-up Mechanism Unit by moving it rearward.c. Disconnect the flexible flat cable (A) connected to thepick-up mechanism unit.d. Remove the pick-up mechanism unit from the CDmechanism chassis.5. Removal of CD Drive Mechanism Unita. Remove 4 screws (B). (Fig. 6)b. Disconnect 2 connectors. (Fig. 7)c. Disconnect the flexible flat cable (A) connected to thepick-up mechanism unit. (Fig. 5)d. Remove the CD drive mechanism unit from the mainchassis.6. Replacement of CD-R Mechanism Unit Belta. Remove the Tray of the CD-R Mechanism Unit. (SeeStep 3.)b. Remove the belt (D) visible from the front withtweezers or the like. (Fig. 8)c. Using alcohol, clean the belt contacting section of thepulley.d. Using tweezers or the like, install a new belt to thepulley A first and then B as shown in Fig. 8. At this time,use care so as not to allow the belt to be twisted orgrease to attach to it.7. Removal of CD-R Drive Mechanism Unita. Remove the MAIN PCB.b. Remove 4 screws (C). (Fig. 6)c. Remove the CD-R drive mechanism unit from the mainchassis.8. Installation of Tray (applicable to both CD drive andCD-R drive models)a. Slide the slide gear (E) to the right to attain the statewith the pick-up mechanism lowered. (Fig. 8)b. Load the tray from the front.c. Reversing the procedure for unloading the tray, makethe gear at the front of the drive turn to the left so thatthe pick-up mechanism is raised fully.Fig. 5Fig. 6Fig. 7Fig. 8CDR-D651Front panelRemote controllerCODEPCB Test Mode (service)(A) OPEN/CLOSE(A) OPEN/CLOSE81 (A) Drive open/close(A) PLAY/PAUSEPLAY82 (A) Playback if FOCUS ON(A) STOPSTOP84 (A) All at stop(A) SKIP -SKIP -86 (A) FEED shift toward inner track(A) SKIP +SKIP +87 (A) FEED shift toward outer track(B) OPEN/CLOSE(B) OPEN/CLOSEC1(B) PLAY/PAUSE (A) Spindle acceleration(B) STOP (A) All at stop(B) SKIP MUTE OFF(B) SKIP MUTE ONDISPLAY ADISPLAY BTEXT/TIME FL display testRECRECA0REC MUTEREC MUTEA1COPYCOPYA3REC MODEREC MODEA2 Servo gain changed *1TRACK No.TRACK No. WRITEA7 Version check *2FINALIZEFINALIZEA5 EEPROM testERASEERASEA6 Output changedINPUTINPUTAB Analog input changedDISPLAY A/B9FTEXT9D7I TEST MODETest ModeIn the test mode, only the CD drive side functions.There are two test modes. One is Product Test Mode andthe other is PCB Test Mode.In both modes, the test results can be checked with thecontents displayed on the fluorescent character displaytube. Refer to the separate table for the contents to bedisplayed.Starting the Test Mode1. In the power off state, press the POWER button whilepressing ( ) and ( ) buttons of the DISC A sideof the Front Panel.2. When the power is turned on and the hand is off fromthe button, the mode is set to the Product Test Mode.At this time, “FQA Mode” appears on the display.Changing to the PCB Test Mode (service)Operation on the main unit:1. In the Product Test Mode, push the MULTI JOG knob.2. Select the test mode by turning the MULTI JOG knob.At this time, “PCB Test” appears on the display.3. Press the MULTI JOB knob to finalize the modeselection.Operation on the remote controller:1. Press the EDIT button.2. Press the DELETE button and select the test mode.At this time, “PCB Test” appears on the display.3. Press the SET button to finalize the mode selection.After either of the above operations, the mode changes tothe PCB Test Mode.Use the same procedure to change the mode from thePCB Test Mode to the Product Test Mode.CDR-D651Front panelRemote controllerCODEPCB Test Mode (service)TIME9E FL display testDIMMER9C Dimmer testMENUBA Not used for service-BC Not used for service+BB Not used for serviceEDITB0 Not used for serviceDELETEB1 Not used for serviceSETB2 Not used for service191 Not used for service292 Automatic adjustment (1) (at CD-RW playback)393 Automatic adjustment (2) (at CD-RW playback)494 Automatic adjustment (3) (at CD-RW playback)595 1 track kick - continued696 1 track kick + continued797 30 track kick - continued898 30 track kick + continued999 150 track kick - continued090 150 track kick + continued+109APROG8B (A) Spindle accelerationREPEAT8D MUTE OFFRANDOM8E MUTE ONCLEAR8C (A) Spindle decelerationPAUSE83 TRACKING OFFSEARCH -88 10 track kick - continuedSEARCH +89 10 track kick + continuedJOG (push) Test mode switch mode finalizedJOG (+/-) Test mode selected8*1 Switching Servo GainIn order to use a CD-RW disk in the test mode, press theREC MODE button in the PCB inspection mode so as toraise the servo gain.Also, it is possible to play back the disk by selecting “AutoAdjustment (1)” to “Auto Adjustment (3)” (pressing 2 to 4keys of the remote controller).When the power is turned off, the original state isresumed.*2 Version CheckWith the “Version Check” selected, it is possible to checkthe version of the microprocessor and CDR unit.In the test mode, every time TRACK NO. button on thefront panel is pressed, the display changes to themicroprocess