Yamaha-CDXE400-cs-sm 维修电路原理图.pdf

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1、100808SERVICE MANUALCDX-E400IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA Products, are alreadyknown and understood by the u

2、sers, 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 prod

3、uct owners that all 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 capa

4、bilities, 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, the

5、refore, inevitableand specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contactthe distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have

6、 accumu-lated 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 parts replacement. Recheck all work before you apply power to the unit.IC DATA .1519DISPLAY DATA .20BLOCK DIAGRAM.21PRINTED CIRCUIT BOA

7、RD .2223IC BLOCK .24PIN CONNECTION DIAGRAM.24SCHEMATIC DIAGRAM.25PARTS LIST.2734PARTS LIST FOR CARBON RESISTORS .35I CONTENTSTO SERVICE PERSONNEL .23PREVENTION OF ELECTRO STATIC DISCHARGE.4REAR PANELS.4SPECIFICATIONS.5INTERNAL VIEW .5DISASSEMBLY PROCEDURES .68STANDARD OPERATION CHART.910TEST MODE.11

8、12ERROR MESSAGE.1314The CRX-E400 is composed of theRX-E400 and the CDX-E400. Thisservice manual is for the CDX-E400.For the RX-E400 service manual,please refer to the following publicationnumber :RX-E400100809For the system operation, please referto the service manual for the RX-E400.MINI COMPONENT

9、SYSTEM CRX-E400CDX-E400RadioFans.CN 收音机爱 好者资料库CDX-E4002CDX-E400I TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Zand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 12

10、0V 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

11、plug in bothpolarities.AC LEAKAGETESTER OREQUIVALENTEQUIPMENTUNDER TESTINSULATINGTABLEWALLOUTLETWARNING: 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 trac

12、es 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 FORANY REASON WHATSOEVER!Avoid prolonged, unprotected contact

13、between solder and your skin! When soldering, do not inhale solder fumesor expose 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.THIS PRODUCT SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXC

14、EPT PROPERLY QUALIFIED SERVICEPERSONNEL.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 mustbe used during serv

15、icing 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 e

16、lsewhere 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 the “STANDBY/ON” SW is turned to the ON position, the laser compo

17、nent willemit a beam for several seconds to detect if a disc is present. During this time (5-10 sec.) the laser may radiate throughthe lens 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 set, yo

18、u 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. Adjus

19、tment of this control can increase the laser emission level from the device.RadioFans.CN 收音机爱 好者资料库CDX-E400CDX-E4003Laser Diode PropertiesGMaterial: GaAlAsGWavelength: 780 nmGEmission Duration : ContinuousGLaser Output: max. 44.6 W* This output is the value measured at a distance of about200 mm from

20、 the objective lens surface on the OpticalPick-up Block.When checking the laser diode emission, keep your eyes morethan 30 cm away from the objective lens.VARO!: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLELASER-STEILYLLE. L KATSO STEESEEN.VARNING! : OSYNLIG LASERSTRLNING NR DENN

21、A DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.Optical Pick-upCDX-E4004CDX-E400I REAR PANELSM R modelM G modelM B model240VSERIAL LABELSERIAL LABELI PREVENTION OF ELECTRO STATIC DISCHARGEThe laser diode in the CD mechanism unit (optical pickup) may be damaged due to static electricity from

22、clothes orthe human body. Use caution to prevent electrostatic damage when servicing or handling the laser diode.1. Grounding for electrostatic damage prevention1. Worktable groundingPut a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.2. Human body

23、 groundingUse an anti-static wrist strap to discharge the static electricity from your body.2. Handling of the optical pickupDo not use a tester to check the laser diode in the optical pickup. The power supply in the tester will damage thelaser diode.3. Handling Precautions for the CD mechanism Unit

24、 (Optical Pickup)1. Handle the CD mechanism unit (optical pickup) 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 b

25、e adjusted. Do not turn the resistor.1MConductive material(sheet) or steel sheetAnti-static wrist stripCDX-E400CDX-E4005G DIMENSIONSUnit : mm (inch)I SPECIFICATIONSOutput Level1kHz, 0dB2.0 0.5VrmsSignal to Nosie Ratio (EIAJ)102dBDynamic Range95dBHarmonic Distortion+Noise (1kHz)0.004%Frequency Respon

26、se2Hz 20kHz0.5dBPower RequirementsB, G models230V AC 50HzR model110/120/220/240V AC 50/60HzPower Consumption10WDimensions (W x H x D)217 x 108 x 346mm(8-9/16 x 4-1/4 x 13-5/8)Weight3.0kg (6 lbs 9 oz)FinishGold colorR, G modelsSilver colorG, B models*Specifications are subject to change without notic

27、e.B . British modelG . European modelR . General modelqMAIN (3) P.C.B.wMAIN (4) P.C.B. (R model only)eMAIN (1) P.C.B.rCD MECHANISM UNITtMAIN (2) P.C.B.I INTERNAL VIEW217(8-9/16)100(3-15/16)8(5/16)108(4-1/4)335(13-3/16)346(13-5/8)qrtewCDX-E4006CDX-E400I DISASSEMBLY PROCEDURES (Remove parts in disasse

28、mbly order as numbered.)1. Removal of Top Covera. Remove 4 screws ( q ) and 4 screws ( w ) in Fig. 1.b. Lift the Top Cover at the rear and move it rear-ward slantingly.2. Removal of Front Panela. Remove a connector (CB102) in Fig. 2.b. Remove 2 screws ( e ) and 2 screws ( r ) in Fig. 1.c.Remove 2 ho

29、oks and then pull the Front Panel forward.3. Removal of CD Mechanism Unita. Remove a connector (CB1) in Fig. 2.b. Remove W2 and W3 from the CD Mechanism in Fig. 2.c. Remove 4 screws ( t ) in Fig. 1.d. Remove the CD Mechanism Unit in Fig. 1.Fig. 2Fig. 1eeqqwrTop CoverCD MechanismUnitFront PanelwttW2W

30、3CB1CB102HookHookCDX-E400CDX-E4007GServicing Positiona. Remove the Top Cover, Front Panel and CD Mechanism Unit.b. Remove 3 screws (y) and 2 screws (u) in Fig. 3.c. Loosen the style pin (PN1) to set W401 free in Fig. 3.d. With the rear panel attached, remove the Main P.C.B.e. With the rear panel att

31、ached, set the Main P.C.B on its side as shown in Fig. 4.At this time, fit the cut in the rear panel with the main chassis as shown in Fig. 4.f. Replace the PU cable of the CD Mechanism with the below specified extension cable.Extension cable16P 230 mm: V3340500g. Install the CD Mechanism to the fra

32、me mechanism.h. Connect CB1 as shown in Fig. 5.i. Connect W2 and W3 to the CD Mechanism as shown in Fig. 6.j. Place the front panel on the base as shown in Fig. 6.Base height: 10cmk. Connect CB102 as shown in Fig. 6.l. Connect the power cable, turn on the power and check for operation.Fig. 3Fig. 4Cu

33、tMain P.C.B.yRear PanelyuuStyle Pin (PN1)W401Main P.C.B.Fig. 5Fig. 6CB1Extension cableW2W3CB102BaseCDX-E4008CDX-E400Disc TablePick-up HeadGear ASled Shaft19.4 0.2mmStopperCheck that the disc table height is as specified below.Fig. 9Fig. 7Fig. 8StopperiStopper PinoSub Chassis (S)!0!0Chucking UnitStop

34、perHookDrive GearDrive Unit5. Removal of Pick-up Heada. Remove 2 screws ( o ) in Fig. 8.b. Remove a pick-up cable in Fig. 8.c. Remove 4 screws ( !0 ) and then remove the DriveUnit in Fig. 8.d. Remove the gear A in Fig. 9.e. Pull out the Sled Shaft in Fig. 9.f. Remove the Pick-up Head.4. Removal of T

35、ray Unita. Remove 2 screws ( i ) and then remove the Chuck-ing Unit in Fig. 7.b. Remove 1 hook and then remove the Stopper Pin inFig. 7.c. Rotate the Drive Gear and then open the Tray Unit inFig. 7.d. Detach the Stoppers on both sides and then pull outthe Tray in Fig. 7.Pick-up CableCDX-E400CDX-E400

36、9I STANDARD OPERATION CHARTAPress OPEN/CLOSE key.Forced feed return operationClamp down operationTray openTracking offset auto ADJFocus offset auto ADJLoad a disc.Press PLAY key or push the tray.Tray closedDisc mechanism unit clamped up.Feed inward switch research.Laser ONDisc scanFocus gain rough A

37、DJFocus search operationFocus lock servo ONSpindle motor accelerated.Tracking servo ONSpindle servo ONFeed servo ON“ OPEN ” appears in the indicator.“TRV” signal is output until detection of LIMIT switch.Stop after detection of LOADING switch.Proceeds to next step after detection of LOADING switch.i

38、f FLSW = L, (IC103, 21 pin)Proceeds To Next Step.LSON = “L” (IC101, 2 pin)FLOCK = “H” “L” (IC102, 11 pin)TLOCK = “H” “L” (IC102, 12 pin)POWER ONIf a disc is not loaded, “ : ” appears in the time indicator.VCO lockCDX-E40010CDX-E400ATracking gain rough ADJ * Data fetch cycle After searching the begin

39、ning, MUTE is cancelled. PLAY MUTE ONTRACK searchMUTE ONSpindle motor stop: MUTE OFF = “H” “L” (Q7 Collector) “0:00” appears in the time indicator.Tracking balance ADJ (only tray OPEN/CLOSE)Focus balance ADJFocus gain ADJTracking gain ADJ* TOC READTRACK NO. “1” is searched.Set to SEARCH by means of

40、Y, T key.After searching the beginning, MUTE is cancelled. PLAY Press the STOP key.Laser OFFForced feed return STOP : MUTE ON = “L” “H” (Q7 Collector): MUTE ON = “L” “H” (Q7 Collector): FLSW (IC103, 21 pin) = “L” : MUTE OFF = “H” “L” (Q7 Collector) “0:00” appears in the time indicator.: LSOFF = “L”

41、“H” (IC101, 2 pin)CDX-E400CDX-E40011I TEST MODEWhen the power off, press the “STANDBY/ON” key while pressing the “ a ” key and the “ w/d ” key and thenrelease your fingers from those keys.Note: At this time, “ a ” key must be pressed before “ w/d ” key is pressd. Otherwise “ w/d ” key operation caus

42、esproduct mode.When the test mode started, the following messages are displayed.Test1After a secondGTest Mode Function List of Panel keysPANEL KEYf(OPEN/CLOSE)w/d(PLAY/PAUSE)a(STOP)TTTTT/EEEEE(SKIP/SEARCH)RRRRR/YYYYY(SKIP/SEARCH)FUNCTIONExecute the test command selected with the SKIP/SEARCH keysPlay

43、s if focus servo is effective. TRON, MUTE OFF.All stop. (Focus, spindle, feed, laser, tray, etc.) Initializes FL displayDecrement the test command number.Increment the test command number.02:AutoAdj 2Command No.Command NameSample of display of test commandCommandNameOp/ClAutoAdj 1AutoAdj 2AutoAdj 3T

44、V RevTV FwdTV StopSP AccelSP BrakeSP SV.OnSP SV.OffSP StopFO SearchTR,TV Off1Kick Rev1Kick Fwd10 K. Rev10 K. Fwd30 K. Rev30 K. FwdFUNCTIONTray open/close.Auto adjustment mode 1 (TR-off set, FO-off set, FO-rough gain adjustment)Auto adjustment mode 2 (TR-balance, TR-rough gain adjustment)Auto adjustm

45、ent mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment)Move traverse reverse till the inner SW turn on.Move traverse forward.Stop traverse.Accelerate spindle.Decelerate spindle.Spindle servo on.Spindle free (servo off)Stop spindle.FOON, TROF (Enter focus search if focus servo is off.)FOON, TR

46、OF, TVOF(FEOF) (Enter focus search if focus servo is off.)Reverse 1 track kick continuously.Forward 1 track kick continuously.Reverse 10 tracks kick continuously.Forward 10 tracks kick continuously.Reverse 30 tracks kick continuously.Forward 30 tracks kick continuously.CommandNo.00010203040506070809

47、10111213141516171819The functions corresponded to the test command numbers are as follows.CDX-E40012CDX-E400KEYaw/dr yt eRANDOMTEXT/TIMEPROGREPTAPE0123456789+10System ControlCode8081838488898A8B8C909192939495969798999AFUNCTIONAll stop. (Focus, spindle, traverse, laser, tray, etc.)PLAY (FOON, TRON, T

48、VON(FEON), SPON)Move traverse forward.Move traverse reverse till the inner SW turn on.SPON (Spindle servo on.)Check FL display.Accelerate spindle.FOON, TROF (Enter focus search if focus servo is off.)Spindle free (servo off)Forward 150 tracks kick continuously.(Coefficient set up mode : lower digit

49、up)Returns to product mode.Auto adjustment mode 1 (TR-off set, FO-off set, FO-rough gain adjustment)Auto adjustment mode 2 (TR-balance, TR-rough gain adjustment)Auto adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment)Reverse 1 track kick continuously.(Coefficient set up mode : addr

50、ess down)Forward 1 track kick continuously.(Coefficient set up mode : address up)Reverse 30 tracks kick continuously. (Coefficient set up mode : upper digit down)Forward 30 tracks kick continuously. (Coefficient set up mode : upper digit up)Reverse 150 tracks kick continuously.(Coefficient set up mo