Yamaha-CDC697-cd-sm 维修电路原理图.pdf

101030P.O.Box 1, Hamamatsu, JapanSERVICE MANUALIMPORTANT 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.I CONTENTSTO SERVICE PERSONNEL . 23PREVENTION OF ELECTROSTATIC DISCHARGE . 4FRONT PANEL . 4REAR PANELS . 56REMOTE CONTROL PANEL . 6SPECIFICATIONS. 7INTERNAL VIEW . 7DISASSEMBLY PROCEDURES . 810STANDARD OPERATION CHART . 1112TEST MODE . 1315ERROR MESSAGES . 1618IC DATA . 1924DISPLAY DATA . 25PIN CONNECTION DIAGRAMS. 26BLOCK DIAGRAM. 27PRINTED CIRCUIT BOARDS. 2833SCHEMATIC DIAGRAMS. 3536REPLACEMENT PARTS LIST . 3744REMOTE CONTROL. 45Parts List for Carbon Resistors . 46 2006 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in print or electronically without permission.CDC-697 06.09COMPACT DISC PLAYERCDC-697RadioFans.CN 收音机爱 好者资料库CDC-697CDC-6972WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEI TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Z andmust be replaced with parts having specifications equal tothose 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 ohms shuntedby 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polari-ties.WARNING: Laser SafetyThis product contains a laser beam component. This component may emit invisible, as well as visible radiation,which may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must beused during servicing 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 stare at the laser beam at any time.2) Do not attempt to readjust, disassemble or repair 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.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/orplastic (where applicable) components may also contain traces of chemicals found by the California Health andWelfare 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 ANYREASON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes orexpose eyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your handsbefore handling food.Laser Emitting conditions:1) When the Top Cover is removed, and the STANDBY/ON SW is turned to the ON position, the laser component will emita beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate through thelens of the laser 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 loaded, you will not be exposed to any laseremissions.2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the factoryprior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in thismanual. Adjustment of this control can increase the laser emission level from the device.All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder.Among some types of lead free solder currently available, it is recommended to use one of the following types for the repairwork. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:As the melting point temperature of the lead free solder is about 30C to 40C (50F to 70F) higher than that of the lead solder, be sureto use a soldering iron suitable to each solder.About Lead Free SolderRadioFans.CN 收音机爱 好者资料库CDC-6973CDC-697This set employs a laser. Therefore, be sure to care-fully follow the instructions below when servicing.1. Laser Diode PropertiesMaterial: GaAlAsWavelength: 790 nmEmission Duration : ContinuousLaser Output: . 1.23 mW (max.)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 NKYMTTMLLE LASER-STEILYLLE. L KATSO STEESEEN.VARNING! : OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGOptical pick-upWARNINGCDC-697CDC-6974I PREVENTION OF ELECTROSTATIC DISCHARGEThe laser diode in the DVD mechanism may be damaged due to static electricity from clothes or the human body. Use cautionto prevent electrostatic damage when servicing or handling the DVD-mechanism.1. Grounding for electrostatic damage preventionSome devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in theworking environment. Only attempt service after ensuring that all grounding procedures have been completed.1. Worktable groundingPut a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.2. Human body groundingUse an anti-static wrist strap to discharge the static electricity from your body.1M ohmsConductive material(sheet) or steel sheetAnti-static wrist strap2. Handling Precautions for DVD mechanism1. Handle the DVD mechanism gently, as it is an extremely high-precision assembly.2. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable.3. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor.I FRONT PANELCDC-697 (U, C, R, T, A, B, G, L models)CDC-6975CDC-697I REAR PANELSCDC-697 (U, C models)CDC-697 (R model)CDC-697 (T model)CDC-697 (A model)CDC-697CDC-6976CDC-697 (B, G models)CDC-697 (L model)I REMOTE CONTROL PANELCDC-6977CDC-697I SPECIFICATIONSI Audio SectionOutput Level (1 kHz, 0 dB) . 2 0.5 VSignal to Noise Ratio . 106 dB or moreDynamic Range. 96 dB or moreHarmonic Distortion + Noise (1 kHz). 0.003 % or lessFrequency Response (2 to 20 kHz) . 0.5 dBI GeneralPower SupplyU, C models . AC 120 V, 60 HzR, L models . AC 110/120/220/230-240 V, 50/60 HzT model . AC 220 V, 50 HzA model . AC 240 V, 50 HzB, G models . AC 230 V, 50 HzPower Consumption .12 WDimensions (W x H x D) . 435 x 116 x 403(17-1/8 x 4-9/16 x 15-7/8)Weight .5.5 kg (12 lbs. 2 oz.)FinishBlack color . U, C, R, T, A, B, G modelsTitanium color . G, L modelsAccessoriesRemote control x 1, Batteries (UM-3) x 2, Power cable x 1 (U, C, A, B,G models), Audio pin cable x 1* Specifications are subject to change without notice due to productimprovements.U . U.S.A. modelC . Canadian modelR . General modelT. Chinese modelA . Australian modelB . British modelG . European modelL . Singapore modelDIMENSIONS394.5(15-1/2)403(15-7/8)1.5(1/16)7(1/4)Unit: mm (inch)435 (17-1/8)16(5/8)100(3-15/16)116(4-9/16)I INTERNAL VIEW1MAIN (7) P.C.B. (U, C, A, B, G models)2MAIN (2) P.C.B. (R, L models)CLAMP ASSY3CM-230A UNIT4MAIN (1) P.C.B.5MAIN (6) P.C.B.6MAIN (5) P.C.B.7MAIN (3) P.C.B.8TRAY ASSY9MAIN (4) P.C.B.01234567890CDC-697CDC-6978I DISASSEMBLY PROCEDURESFig. 1(Remove parts in the order as numbered.)1.Removal of Top Covera.Remove 4 screws (1) and 3 screws (2). (Fig. 1)b.Lift the top cover at the rear and move it rearwardslantingly.2.Removal of Clamp Assya.Remove 2 screws (3). (Fig. 1)b.Remove clamp assy. (Fig. 1)3.Removal of Tray Assya.Remove 1 screw (4). (Fig. 1)b.Turn gear/L0. (Fig. 2) Counter clockwise graduallyuntil immediately before the tray starts to move andstop it there.CAUTION: Gear/L0, if turned counter clockwise continu-ously, will mesh with the gear of the tray andthe tray will come out. When removing thetray, use care so that gear/L0 will not meshwith the gear of the tray.c.Pull out the tray assy.4.Removal of Tablea.Remove 1 screw (5) and then remove the support/T.(Fig. 1)b.Remove the plate/table. (Fig. 1)c.Remove 1 screw (6) and then take off the table.(Fig. 1)112TableTray6453Top coverPlate/TableClamp assySupport/TTrayGear/L0Front panel unitFig. 2Precaution for installation of the Tray Assy.On tray assy setting.Check the direction of marking “H H H H H” on gear accord-ing to this drawing.Fig. AGear/L0Front panelGear/L01MarkingIMPORTANCE: Installation of Table.Install the table according to the following procedure.1) Slide the lever so that the gear/RT1 becomesfree. (Fig. B-1)2) With the “H H H H H” mark on the gear/RT1 aligned withthe same mark on the tray, lock it with the lever.(Fig.B-1)3) Install the table by aligning it to the thick line on “ / ”mark. (Fig. B-2)*Check that the Table is locked after installa-tion.Fig. B-1Fig. B-2LeverGear/RT1Fit the gear/RT1 to L mark.LockUnlockTrayTrayTableFit the table to the thick line on / mark.CDC-6979CDC-697CM-230A unit can not be removed without removingthe Front Panel Unit.5-A. Removal of Front Panel Unita.Remove CB200 and CB304. (Fig. 4)b.Remove 2 screws (7), 3 screws (8) and 1 screw(9). (Fig. 3)c.Remove the front panel unit. (Fig. 3)8977CM-230A unitFront panel unitFig. 35-B. Removal of CM-230A Unita.Remove 5 screws (0). (Fig. 5)b.Remove CB1, CB2 and CB300. (Fig. 4)c.Take the CM-230A unit out slowly. (Fig. 5)6.Removal of PU Mechanism Unita.Remove 2 screws (A) and then remove the PU unitassy. (Fig. 6)b.Remove 4 screws (B) and then remove the PUmechanism unit. (Fig. 7)Fig. 6PU unit assyAFig. 7PU mechanism unitBBOperation Check Procedurea.Disassembly1) Remove the top cover.2) Remove the clamp assy.3) Remove the stabilizer from the holder.Turn the plate clockwise by 30 while holding thestabilizer, and the plate will come off. Remove thestabilizer from the holder.b.Clamp the disc by using the stabilizer.c.Set to the TEST mode and check for any faultyconditions.Fig. CHolderLockUnlockStabilizerFrame damperPlateCB300CB2CB1CB410CB202CB304CB200Fig. 40CM-230A unit0Fig. 5CDC-697CDC-69710When checking the P.C.B.:a.Remove the top cover.b.Remove the tray assy.c.Remove 3 screws (1) and 2 jack screws (2). (Fig. 1)d.Remove 1 screw (3), 1 screw (4) and 1 push rivet.(Fig. 2)e.Spread a cloth over the main chassis. (Fig. 2)f.Put the MAIN (1) and MAIN (6) P.C.B.s on end.(Fig. 2)g.Connect the ground point of MAIN (6) P.C.B. to rearpanel by using ground lead. (Fig. 2)CAUTION: The ground point must be connected to rearpanel to keep the circuit in normal operationwhen MAIN (6) P.C.B. is removed from rearpanel.h.Remove 5 screws (5) and 1 screw (6). (Fig. 3)i.Remove the front panel from the chassis.Fig. 1Fig. 2Fig. 3Push rivet143Rear panelMAIN (1) P.C.B.MAIN (6) P.C.B.12Ground leadClothChassis MAIN (6) P.C.B. MAIN (1) P.C.B.Rear panelGround leadGround point(PJ101)5Front panelChassis565CDC-69711CDC-697I STANDARD OPERATION CHARTOPEN is displayed.TRV signal is output until detection of FEED LIMIT switch.Press OPEN/CLOSE key.Forced feed return operation.Clamp down operation.Tracking offset auto adjustment.Focus offset auto adjustment.Laser on.Disc scan.Focus gain rough adjustment. Focus search operation.Spindle motor accelerated.Tracking servo on.Disc servo on.VCO lock.Disc table reset.Tray open.Tray closed.Table rotate.Disc search.Disc mechanism unit clamped up.FEED LIMIT switch search.Proceeds to next step after detection of CLAMP switch. (SW401)Stops after detection of LOADING switch. (SW400)Proceeds to next step after detection of LOADING switch. (SW400)DISC 1 is turned to DM clamp position.Proceeds to next step after detection of CLAMP switch. (SW401)FLSW = L (IC309, pin 23) Tracking gain rough adjustment.Tracking balance adjustment. (only tray open/close)Focus balance adjustment. Focus lock servo on.DISC 1 flashes.DISC 1 changes from flashing into lighting.Load a disc in DISC 1. Press PLAY key or push the tray.FLOCK = H L (IC309, pin 8) TLOCK = H L (IC309, pin 7) ACDC-697CDC-69712Press the STOP key.Focus gain adjustment.Tracking gain adjustment.After searching the beginning, Mute is cancelled.Mute on.Track search.After searching the beginning, Mute is cancelled.Mute on.Spindle motor stop.Laser off.Forced feed return.*TOC READ * Data fetch cycle Track No. 1 is searched. PLAY Set to search by means of Y, T key. PLAY STOP : MUTE ON = H L: MUTE OFF = L H, 0:00 appears on the display.: MUTE OFF = L H, 0:00 is displayed.: FLSW = L (IC309, pin 23)A(IC309, pin 28)CDC-69713CDC-697I TEST MODE Starting TEST modeTest mode is started when the power is turned on while the “PLAY/PAUSE” and “STOP” keys on the panel aresimultaneously pressed and held.When the test mode is started, as shown below is displayed.Note: “traverse servo” means the same as “feed servo”.Panel keyFunctionOPEN/CLOSEPLAYXCHANGEPLAY/PAUSESTOPTTTTT SKIPYYYYY SKIPDISC 1DISC 2DISC 3DISC 4DISC 5(Note 1)Tray open/close.Rotating the mode of coefficients. (Coefficient mode Coefficient setting Product mode) Pressingtwice will set to the product mode.Plays if focus servo is effective. TRON, MUTE OFF.All stop. (Focus, spind