kurzweil_sp2x电路图.pdf

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1、 SP2X Service Manual 2007Allrightsreserved.KurzweilisaproductlineofYoungChangCo.;KurzweilisatrademarkofYoungChang Co.Allotherproductsandbrandnamesaretrademarksorregisteredtrademarksoftheirrespective companies.Productfeaturesandspecificationsaresubjecttochangewithoutnotice. RadioFans.CN 收音机爱 好者资料库 ii

2、 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with the arrowhead symbol, within an equilateral triangle is intended to alert the us

3、er to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maint

4、enance (servicing) instructions in the literature accompanying the product. IMPORTANT SAFETY B. Objects have fallen onto, or liquid has been spilled into the product; C. The product has been exposed to rain; D. The product does not appear to be operating normally or exhibits a marked change in perfo

5、rmance; E. The product has been dropped, or the enclosure damaged. 12. Do not attempt to service the product beyond that described in the user maintenance instructions. All other servicing should be referred to qualified service personnel. 13. WARNING: Do not place objects on the products power supp

6、ly cord, or place the product in a position where anyone could trip over, walk on, or roll anything over cords of any type. Do not allow the product to rest on or be installed over cords of any type. Improper installations of this type create the possibility of a fire hazard and/or personal injury.

7、RADIO AND TELEVISION INTERFERENCE WARNING: Changes or modifications to this instrument not expressly approved by Young Chang could void your authority to operate the instrument. IMPORTANT: When connecting this product to accessories and/or other equipment use only high quality shielded cables. NOTE:

8、 This instrument has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the instrument is used in a commercial environment. This instrument ge

9、nerates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this instrument in a residential area is likely to cause harmful interference, in which case the user w

10、ill be required to correct the interference at his or her own expense. Changes and modifications not expressly approved by the manufacturer or registrant of this instrument can void the users authority to operate this instrument under Federal Communications Commission rules. In order to maintain com

11、pliance with FCC regulations, shielded cables must be used with this instrument. Operation with unapproved equipment or unshielded cables is likely to result in harmful interference to radio and television reception. NOTICE This apparatus does not exceed the Class A limits for radio noise emissions

12、from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. AVIS Le present appareil numerique nemet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class A prescrites dans le Reglement sur le brou

13、illage radioelectrique edicte par le ministere des Communications du Canada. SAVE THESE INSTRUCTIONS RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 iii Young Chang Distributors ContactthenearestYoungChangofficelistedbelowtolocateyourlocalYoung Chang/Kurzweilrepresentative. KurzweilHeadquarters 9FL,

14、102Dong,I PARK,JeoungjaDong, BuandanGu,SeongnamSi,GyeonggiDo,Korea 463859 Tel:182317867900 Fax:182317852703 Web:www.yapiano.co.kr YCNA(YoungChangNorthAmerica) 19060SDominguezHills,DrRanchoDominguez, CA90220,U.S.A Tel:13106372000 Fax:13106372025 Web: YCRDI(YoungChangRitwont work. bkbootblockforkeyboa

15、rdmodels koperatingsystemsoftwareforkeyboardmodels. Installing the Operating System or Setups Warning:Thisprocedurerequiresperformingahardreset.Alluserprogramsandsetupswill beerased.Beforecontinuing,besuretosavealluserprogramsandsetups. 1. ConnectaMIDIcablefromtheMIDIOutportofthecomputerinterfaceors

16、equencerto theMIDIInportonthePC2. 2. Openthefirst.MIDfileusingthesequencerprogram. 3. TurnontheSP2XandfollowtheproceduretoentertheBootBlock. 4. PresstheEnterbuttontoselect“uOS” 5. Thesegmentshows“uOS”.StartplayingtheMIDIfilefromthesequencer.Whileafileis loading,thebottomlineofthedisplayshowstheprogr

17、ess.Ifthedisplaycontinuestoshow afterstartingthesequencer,stopandrestartthesequence. 6. Afterthefileisloaded,thedisplaywillshow“oK”. 7. Ifyouhaveadditionalfilestoload,openthefilefromthesequencerandbeginplayingit. 8. PresstheCancelbuttontwicetoreturntothemainmenu.ScrolltoHardResetandselect. Trouble S

18、hooting Installing a New Boot Block 27 Installing a New Boot Block Warning:Thisprocedureperformsahardreset.Alluserprogramsandsetupswillbeerased. Beforecontinuing,besuretosavealluserprogramsandsetups. 1. ConnectaMIDIcablefromtheMIDIOutportofthecomputerinterfaceorsequencerto theMIDIInportontheSP2X. 2.

19、 Usingthesequencerprogram,openthefirst.MIDfile. 3. TurnontheSP2XandfollowtheproceduretoentertheBootBlock. 4. PresstheEnterbuttontoselect. 6. Thesegmentshows.Startplaying theMIDIfilefromthesequencer. Whileafileisloading,thebottomlineofthedisplayshowstheprogress.Ifthedisplay continuestoshow afterstart

20、ingthesequencer,stopandrestartthe sequence. 7. Afterthefileisloaded,theunitwillreset. Replacing the Battery TheSP2XusesaflatthreevoltLithiumcoincellbattery.Whenthebatteryvoltagerunslow,the unitbootsupwithalowbatterymessage. Note: ThebatteryvoltagecanbecheckedatanytimeusingtheScannerDiagnostics.Seepa

21、ge 30formoreinformation. Accessing the Battery 1. PlacetheSP2Xupsidedownonaflatprotectedsurface. 2. Removetopassemblyandsetitsafelyaside. Removing the Battery Thebattery(CR2032)intheSP2XismountedintoaholderontheEngineBoardandis accessiblewhentheaccesspanelisremoved. 1. Insertaflatplastictool(plastic

22、knife,pencap,etc.)intooneoftheopeningsbetweenthe batteryandtheholdertoliftthebattery. Trouble Shooting Installing the Battery 28 Insert the tool here to lift the battery. CR2032 Insert the tool between The holder and the to ease the battery out of the holder. Figure 5-1 Battery and holder 2. Easethe

23、batteryoutoftheholder.Ifnecessary,inserttheplastictoolatthebottomofthe holder(closesttotheEngineBoard)toremovethebattery. Installing the Battery 1. PositionthebatteryovertheholdersothatthepositiveterminalispointingtotheEngine Board. 2. Slidethebatteryintotheholderandapplyslightpressureuntilitsnapsin

24、toplace. 4. Installthesevenscrewstosecurethetopassembly Trouble Shooting Power Problems 29 SP2X Scanner Test TheScannerTestsfortheSP2XincludeseparatetestsforthefrontpanelbuttonsandLEDs,front panelknobsincludingtheMasterVolumeslider,theModandPitchwheels,thekeyboard,and thepedals. ToentertheScannerTes

25、ts,firstturnontheSP2X.OncetheSP2Xisonandreadytoplay, simultaneouslyholddowntheMain,LayerandSplitbuttons.AllfrontpanelLEDswillflash andthesegmentwilldisplaythefollowing: Figure 5-3 Segment example, SP2X scanner tests “SP2”,“SCn”,then“vX.Y”aredisplayedbrieflyinsequencevX.Ymeansversionofthescanner inst

26、alledtheunit. “bAt”means“Battery”andthevoltageisX.Yvolts.Normalbatteryvoltageisaround3.0volts where3.2vistypicalforanewbatteryandlessthan2.8meansthebatteryisnearingtheendof itslifeandhasonlyafewmonthsleft.At2.2volts,warningwillbegin.Acompletelydeadoe missingbatterymaynotreadexactly0.0vbutwillcertain

27、lyreadlessthan1.0v. Next“PCH”then“XXX”isdisplayedinsequence.“PCH”meansthePitch(left)WheelandXXX isitscenterreadingatpoweron.Ideallythisis128butanythingbetween120and136is acceptable.Newunitsshouldbeadjustedtobebetween126and130toallowfordriftoverthe lifeoftheunit. Lastisadisplayofwhichoptiondiodeshave

28、beeninstalled.First“jPr”isdisplayedbrieflythen 4verticallineswillshowbriefly.EachlinerepresentsanoptiondiodefromOpt1(leftmost)to Opt4(rightmost)Alongline(2segmentslong)mansthecorrespondingdiodeisinstalledwhilea shortline(1segment)isnotinstalled.Optionsettingsnormallytellthescannersoftwarethe keyboar

29、dlengthandweightandshouldmatchtheactualunit. Front Panel Buttons Whenabuttonispressed,itsLED(ifany)turnsonanditsmatrixaddressisshowninthe display.EachpressofKnobModewillrightthenextKnobModeLEDinatopdownsequences. RhythmandProgrambuttonhastwocolorled,eachbuttonpress,REDandGREENLEDsturns onalternative

30、ly. Front Panel Knobs Whenaknoborthevolumesliderismoved,itsnameisshownbrieflythenitschangingvalueis displayed.Thenamesare “vol”volumeslider, “KnA”KnobA, “Knb”KnobB, “KnC”KnobC, “Knd”KnobD. Thenameshouldbecorrectandthevaluenumbersshouldrunsmoothlyfrom0(or1)upto 255(254)asslidermovedupwardortheknobclo

31、ckwise.Whenturnedveryslowly,thenumber displaywilltypicallychangeinstepsoftwo(1,3,5,or2,4,6,)andmayevenswitchfromevento Trouble Shooting Keyboard Problems 30 oddandbackwhichisnormal.Bigjumpsofmorethan3countswhichturningslowlymay indicateaproblem however,Whenthecontrolisreleased,itslastreadingshouldre

32、mainwithoutchangingbymore than2counts. Keyboard Whenakeyboardkeyispressed,thekeysmusicalpitchshouldbeshowninthedisplay.The firstcharactershouldbethenotename.Thesecondcharactershouldbeblankforwhitekeysora “higho(sharpsign)forblackkeys.Thethirdcharactershouldbetheoctavenumberfrom0to8. ThusMiddleCwillb

33、eshownas“C4” Besidesthekeyname,the3decimalpointsinthedisplayrevealimportantinformationabout therubberswitchesunderthekeybeingpressed.Whenthekeyispressedpartially,theleft decimalpointwillindicatethatthefirstrubberswitchandmadecontact.Whenthekeyis pressedfurther,themiddledecimalpointindicatesthattheke

34、yispressedfurther,themiddle decimalpointsindicatesthatthesecondrubberswitchhasalsomadecontact.Thuswhenakeyis pressedslowly,thefollowingsequenceshouldbeobservedexactly0. BlankDisplayCorrectKeynameandleftdecimalpointCorrectlyKeynameandleftand centerdecimalpoints Ifthecorrectkeynameandonlythecenterdeci

35、malpointlights,thenthereisadefectassociated withthefirstswitch.Ifall3decimalpointslight,theneithermorethanonekeyisprocessingat onceorthereisashortcircuitintheconnectingorontheconnector. Switch Pedals IfasingleswitchpedalispluggedintotheSWjack,operatingitshouldcasearesponseinthe display.ForKurzweilpe

36、dals,pressingthepedalshouldcause“S1C”tobedisplayedwhile releasingitshouldcause“S1o”tobedisplayed.Othervenderspedalsmaycausetheopposite response.Ifadualpedalispluggedin,thentheSustain(right)pedalshoulddisplayasdescribed above.TheSoftpedal(left)shouldcause“S2C”and“S2o”todisplay.Aswiththebuttons,the di

37、splayshouldrespondimmediatelyandwithoutflickeringifpedalworkingproperly. Continuous Pedals IfcontrolpedalispluggedintotheCCjack,operatingitshouldcausethedisplaytoshow“CP1” brieflythenitschangingvalues.Aswiththevolumesliderandknobs,thevaluedisplayshould smoothlyincreasefrom0to1upto254or255asthepedali

38、spressed.Thisistheidealrangeofa perfectlycalibratedKurzweilpedal.Manypedalsmayonlyreach248250whichacceptable.All shouldgodownto0or1however Trouble Shooting Power Problems 31 Power Problems Dead 1. Beforeopeningtheunit,verifythefollowing: TheACoutletissupplyingpower. TheACadapterisproperlyconnectedto

39、theunit. 2. Checkthepowerswitch,powerjackandACadapter. 3. RefertotheInterconnectDiagram.Seepage5XX.Checkallrelatedconnections. 4. RefertotheConnectorBoardschematicsandcheckallsupplyvoltages. Audio Problems No Audio 1. RuntheScannerDiagnosticstocheckthevolumeslideroperation. 2. RefertotheInterconnect

40、Diagram.See5XX. 3. CheckthestandardwirefromJ9ontheEngineBoardtoJ15ontheConnectorBoard. 4. Checkthesolderconnectionsattheconnectors. 5. RefertotheEngineBoardschematicsandcheckthesignalactivityontheDAC,U28. 6. Tracethesignalpath. Front Panel Problems Buttons, Knobs or Controllers not working 1. Runthe

41、ScannerTests. 2. RefertotheInterconnectDiagram.Seepage5XX. 3. Checkallrelatedcables. 4. Disconnectandreseatthecables. 5. Checkthesolderconnectionsattheconnectors. 6. Checkfrontpanelribboncable(s). 7. RefertotheConnectorBoardschematicsandcheckU12,ICScanner38869,forsignal activity. Keyboard Problems D

42、ead Keyboard 1. ChecktheflatribboncablesconnectingthekeyboardBassandTrebleContactBoardstothe ConnectorBoard,locationsJ2andJ3.Becertainthatthecablesarenotlooseordamaged. 2. Disconnectandreseatthecables. Trouble Shooting Keyboard Problems 32 3. RefertotheConnectorBoardschematics. 4. CheckU12,ICScanner

43、38869ontheConnectorBoardforkeyboardsignals. 5. Tracesignalpath. . Findandreplacebadcomponent(s)ororderaboardreplacement.DeadNote(s) One or More in a Section 1. Removerelatedcontactboard. 2. Checkcontactstripfordirt,damageorwearing.Cleandirtycontactswithdenatured alcohol.Replacedamagedorworncontactst

44、rip. 3. Installcontactstrip. 4. Ifsectionisstilldead,removestripandcheckcontactboardforshorts,coldsolderjoints, etc. 5. Findandreplacebadcomponent(s)ororderreplacementboard. Mechanical Noise 1. Checkkeyboardforbrokenkeyweights,supportbrackets,orrippedcontacts. Trouble Shooting SP2 Interconnection Di

45、agram 33 SP2X Interconnect Diagram 34 Chapter 6 Parts Lists Introduction ThepartslistsincludedinthischaptercoverallmodelsoftheSP2X.Someprintedcircuitboards andassembliesareusedinmorethanonemodel.Therefore,thepartslistsonthefollowingpages arelistedundertheseheadings: Thefollowingtwotableslisttheprint

46、edcircuitboardsandassembliesbymodel. SP2X Printed Circuit Boards and Assemblies Part No. Description Pag e Nxxxxxxx Final Assembly, SP2X page 36 N012131702 Engine Board page 37 N012300063 Pitch & Mod Wheel Assembly page 40 N012131802 Connector Board page 41 N012131901 Front Panel Board page 44 Part

47、List Final Assembly 35 Final Assembly Part No Item Description UnitQty Location N013030951bending strip(Iron) EA10 N015048226FELT 1TX16X1350 BLK KEYBOARD PC88/MX/PC1/2X EA1 N022003720CABLE CLAMP 20PIN EA4 N022003726CABLE CLAMP 26PIN EA2 N025224508TAPPING SCREW-2 BH 3.5X8 WHITE With washer EA32 N025223307TAPPING SCREW-2 BH 3.5X6 BLK EA2 N025223410TAPPING SCREW-2 BH 3X10 BLK EA2 N025323408MACHINE SCREW BH M4X8 BLK EA13 N025323414MACHINE SCREW BH M4X14 BLK EA13 N025323422MACHINE SCREW BH M4X25 BLK EA6 N025328822MACHINE SCREW BH 5X22 BLK With washer EA9 N039000701SLIDE VO