Yamaha-AO8-aob-sm(1) 维修电路原理图.pdf

SERVICE MANUALPA 011506CONTENTSREVISED PAGE LIST 2-1SPECIFICATIONS 3-1PANEL LAYOUT 3-2DIMENSIONS 3-3CONNECTOR CIRCUIT DIAGRAM 4BLOCK DIAGRAM 6DISASSEMBLY PROCEDURE 7LSI PIN DESCRIPTION 11IC BLOCK DIAGRAM 14CIRCUIT BOARDS 15INSPECTION 20TEST PROGRAM 22ERROR MESSAGES 27PARTS LISTCIRCUIT DIAGRAMANALOG OUTPUT BOX AO8-DA8200004*-250000HAMAMATSU, JAPANCopyright (c) Yamaha Corporation. All rights reserved. PDF-K-*K01.03RadioFans.CN 收音机爱 好者资料库AO82-1REVISED PAGE LISTSPECIFICATIONSPANEL LAYOUTDIMENSIONSCONNECTOR CIRCUIT DIAGRAMDISASSEMBLY PROCEDUREIC BLOCK DIAGRAMCIRCUIT BOARDSAD, IPC4, DR, PSB, LED2DC, MB1IFC3INSPECTIONTEST PROGRAMERROR MESSAGESITEM3-13-23-357,91415191617192021222641PAGEOVERALL ASSEMBLYSIDE PANEL ASSEMBLYMOTHER ASSEMBLYELECTRICAL PARTSITEM2, 3, 44, 56712PAGERadioFans.CN 收音机爱 好者资料库AO82-2UNC CIRCUIT DIAGRAM003MB1 CIRCUIT DIAGRAM002003004005IFC3 CIRCUIT DIAGRAM002003004005006007IPC2 CIRCUIT DIAGRAMIPC4 CIRCUIT DIAGRAMAOCOM CIRCUIT DIAGRAM 002003ITEM456789101112131415161819PAGEAO82-2WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother 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 REASONWHAT SO EVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyesto solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handlingfood.IMPORTANT NOTICEThis manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed thatbasic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood bythe 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 thesereasons, we advise all Yamaha product owners that all service required should be performed by an authorizedYamaha Retailer or the appointed service representative.IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization, certification,recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.The data provided is belived 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, inevitable andchanges in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist,please contact 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 bus in the unit (heavy gauge black wires connect to this bus).IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to theunit.WARNINGComponents having special characteristics are marked and must be replaced with parts having specification equal to thoseoriginally installed.IMPORTANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CordIMPORTANT.The wires in this main lead are coloured inaccordance with the following code:BLUE:NEUTRALBROWN: LIVEAs the colours of the wires in the main lead of this apparatus may notcorrespond with the coloured markings identifying the terminals inyour plug, proceed as follows:The BLUE wire must be connected to the terminal that is marked withthe letter N (or coloured BLACK).The BROWN wire must be connected to the terminal that is markedwith the letter L (or coloured RED).Be certain that neither core is connected to the earth terminal of thethree pin plug.SPECIFICATIONSAO83-1Sampling frequency (external sync)Power supplyPower consumptionDimensions (W x H x D)WeightOperating temperaturePower cable lengthCooling fan speedAccessories39.69 kHz 50.88 kHzUSA and Canada: 120 V, 60 HzOthers: 230 V, 50 Hz120 W480 mm x 141.5 mm x 466.8 mm15.4 kg10 35 C2.1 malways fixedConnection cable (68-pin, D-sub, half-pitch) x 1, Length: 3 mI/O connectorsINPUT A, B, CWORD CLOCK INWORD CLOCK OUTLevelRS-422TTL/75 (ON/OFF)TTL/75 TypeD-sub, half-pitch, 68-pin connector (female)BNC ConnectorBNC ConnectorDigital I/OsCardLMY4-ADInputChannel 1 4Slots* The illustration shows the AO8 analog output box.1234567UNIT NO.INPUT SELECTORABPOWERON/ OFF8ANALOG OUTPUT BOXOUTPUT UNIT IDINPUT SELECTORABPOWERON/ OFFANALOG OUTPUT BOX75INBAINPUTONOFFOUTWORD CLOCKBAINPUTONOFFOUTWORD CLOCK75IN1235641OUTPUT UNIT ID indicator2INPUT SELECTOR switch3POWER ON/OFF4INPUT connectors A and B5WORD CLOCK IN jack, ON/OFF switch6WORD CLOCK OUT jackFront PanelRear PanelAO83-2PANEL LAYOUT455466.8480430132 (3U)141.5OUTPUT UNIT IDINPUT SELECTORABPOWERON/ OFF12345678ANALOG OUTPUT BOX9.5Unit: mmDIMENSIONSAO83-3AO84CONNECTOR CIRCUIT DIAGRAMIFC3PSBKEC-92523-2POWERON/OFF3PCN60014PCN1005PCN127*LED2OUTPUTUNIT ID12345678SLOT NO.4PCN1264PCN1256PCN1244PCN1236PCN1224PCN12120PCN12030PCN119CN109100PUNCCN108100PCN107100PCN106100PCN105100PCN104100PCN103100PCN102100PCN101100P8PCN1178PCN1168PCN1158PCN1148PCN1138PCN1128PCN1118PCN1106PCN118MB1POWERTRANSFORMER*6PCN10413PCN60513PCN60610PCN60710PCN6085PCN10620PCN10230PCN10114PCN1038PCN4028PCN4038PCN4048PCN40513PCN60113PCN60210PCN60310PCN6048PCN4078PCN4086PCN1058PCN4068PCN401INPUTAB10PCN10410PCN10313PCN10213PCN10110PCN10410PCN10313PCN10213PCN1013PCN0025PCN00114PCN1004PCN1012PCN3004PCN3012PCN3024PCN30316PCN2006PCN201DC2PCN4004PCN4013PCN402FGACFAN3PCN5022PCN500DRWORD CLOCKONOFF75 INOUT5PCN300IPC4IPC2IPC2AO85Circuit BoardCN No.Pin No.DCCN100234567891011121314DCCN101123DCCN200DCCN201123456123DCCN30012DCCN3011234DCCN3022DCCN30312IFC3CN10312345678910111213141MB143MB143MB15IFC312MB121MB121MB13IFC334MB14IFC3564MB1MB14MB14MB12MB12MB12DR12MB166MB121MB1155LED11234567891011121314CN122CN124CN127CN104CN122CN124CN127CN104CN127CN104CN123CN121CN125CN121CN123CN125CN500CN122CN126CN127MB1MB1CN122CN124CN100CN124Circuit BoardCN No.Pin No.MB11MB11MB11CN121CN123CN125MB1ACCN70114PSBCN60013KEC-92523-311234567RegisterDecoderFLASHRAMCPUWC SEL & SYNC DETECTORDecoderRegisterDIR244.1K48KDIR2 28Data BusAddress BusSLOT No.FPGAMASTER CLOCK/CS1/CON175 LOCKWCWCIID I/OWCOINPUT CLOCKINPUT CLOCKDIAWCIID I/OWCODIBINPUTABINOUTWORD CLOCKOUTPUT UNIT IDINPUT SELECTORABSELECTORATSC 2O11O12O21O22O31O32O41O42O51O52O61O62O71O72O81O82/CS2/CON2/CS3/CON3/CS4/CON4/CS5/CON5/CS6/CON6/CS7/CON7/CS8/CON8ONOFFWCOWCIIC302IC303IC202IC501IC502IC404IC407IC101IC201IC203IC301DIR2IC402DIR2IC401DIR2IC403IPC2DriverReceiverIPC2IPC4IFC3DriverReceiverKEC-92521LED2UNCMB1ATSC 2IC502IC504BLOCK DIAGRAMAO86AO87DISASSEMBLY PROCEDURE3.LED2 Circuit Board3-1Remove the front panel assembly. (See Procedure 2.)3-2Remove the two (2) screws marked 80. The LED2circuit board can then be removed. (Fig. 2)4.PSB Circuit Board4-1Remove the UNC card assembly. (See Procedure 1.)4-2Remove the front panel assembly. (See Procedure 2.)4-3Remove the seventeen (17) screws marked 430. The toppanel can then be removed. (Fig. 2)4-4Remove the two (2) screws marked 100. The PSB circuitboard can then be removed. (Fig. 2)470500 x 32400: Flat Head Screw 4.0 x8 MFZN2BL (VA221200)450: Oval Head Screw 4.0 x8 MFZN2BL (VS153600)47040040040012345678Mount bracketMount bracketFront panel assemblyUNC card assemblyBlank panelFig. 1452: Oval Head Screw B4.0 x8 MFZN2BL (V6221000)470: Bonding Screw 3.0 x6 MFZN2BL (VS863000)500: Bonding Screw 3.0 x6 MFZN2BL (VS863000)450452Mount bracket450452Mount bracket1.UNC Card Assembly1-1Remove the four (4) screws marked 470. The UNC cardassembly can them be removed. (Fig. 1)2.Front Panel Assembly2-1Remove the UNC card assembly. (See Procedure 1.)2-2Remove the thirty-two (32) screws marked 500. Theblank panel can then be removed. (Fig. 1)2-3Remove the six (6) screws marked 450. Each mountbracket can then be removed. (Fig. 1)2-4Remove the six (6) screws marked 400. The front panelassembly can then be removed. (Fig. 1)180: Bind Head Tapping Screw-B A3.0 x6 MFZN2BL (VP157900)280: Bind Head Tapping Screw-B A4.0 x8 MFZN2BL (VC688800)Fig. 3Upper chassisIPC2IPC4380320A320310240280280180APower transformerMother assemblyDRAO886.Mother Assembly6-1Remove the UNC card assembly. (See Procedure 1.)6-2Remove the front panel assembly. (See Procedure 2.)6-3Remove the top panel. (See Procedure 4-3.)6-4Remove the seven (7) screws marked 280. The motherassembly can then be removed. (Fig. 3)5.Circuit Boards and UnitsRemove the top panel, each circuit board and unit canthen be removed. (Fig. 3)80: Bind Head Tapping Screw-B 3.0 x6 MFZN2BL (EP600230)100: Bind Head Screw 3.0 x8 MFZN2BL (VB659000)170: Bind Head Tapping Screw-B A4.0 x8 MFZN2BL (VC688800)430: Bind Head Tapping Screw-B A4.0 x8 MFZN2BL (VC688800)Fig. 2430 x 17Top panel80170100LED2PSBCircuit Board and UnitIPC2IPC4DRPower TransformerA310320380240ScrewBonding Screw 3.0 x6 MFZN2BL (VS863000)Bind Head Screw A4.0 x6 MFZN2BL (EG340290)Bonding Tapping Screw-B (VN413300)Bonding Tapping Screw-B (VC688800)22224Ref. No.ScrewQTY30: Bind Head Tapping Screw-B 3.0 x6 MFZN2BL (EP600230)50: Bind Head Tapping Screw-B 3.0 x6 MFZN2BL (EP600230)70: Bind Head Tapping Screw-B 3.0 x6 MFZN2BL (EP600230)Fig. 4200: Bind Head Tapping Screw-B A4.0 x8 MFZN2BL (VC688800)260: Bind Head Tapping Screw-B A4.0 x8 MFZN2BL (VC688800)450: Oval Head Screw 4.0 x8 MFZN2BL (VS153600)452: Oval Head Screw B4.0 x10 MFZN2BL (V6221000)Fig. 5MB1305070450452260260Mount bracketSide panel assemblySide panel LIFC3 Mother Assembly450452200200Mount bracketAO897.MB1 Circuit Board7-1Remove the mother assembly. (See Procedure 6.)7-2Remove the nine (9) screws marked 30 and the five (5)screws marked 50. The MB1 circuit board can then beremoved. (Fig. 4)8.IFC3 Circuit Board8-1Remove the mother assembly. (See Procedure 6.)8-2Remove the six (6) screws marked 70. The IFC3 circuitboard can then be removed. (Fig. 4)9.Side Panel Assembly9-1Remove the UNC card assembly. (See Procedure 1.)9-2Remove the front panel assembly. (See Procedure 2.)9-3Remove the top panel. (See Procedure 4-3.)9-4Remove the mother assembly. (See Procedure 6.)9-5Remove the eight (8) screws marked 450 and the two (2) screwsmarked 452. Each mount bracket can then be removed. (Fig. 5)9-6Remove the seven (7) screws marked 200. The sidepanel (L) can then be removed.9-7Remove the three (3) screws marked 170 and the five (5)screws marked 180. The upper chassis can then beremoved. (Fig. 2, Fig. 3)9-8Remove the seven (7) screws marked 260. The sidepanel assembly can then be removed. (Fig. 5)AO81010.AC Assembly10-1Remove the side panel assembly. (See Procedure 9.)10-2Remove the three (3) screws marked 90. The ACassembly can then be removed. (Fig. 6)11.DC Assembly11-1Remove the side panel assembly. (See Procedure 9.)11-2Remove the four (4) screws marked 60. The DCassembly can then be removed. (Fig. 6)12.DC Circuit Board12-1Remove the side panel assembly. (See Procedure 9.)12-2Remove the DC assembly. (See Procedure 11.)12-3Remove the four (4) screws marked D60. The TR holdercan then be removed. (Fig. 7)12-4Remove the three (3) screws marked D80. The BRholder can then be removed. (Fig. 7)12-5Remove the five (5) screws marked D90. The DC cricuitboard can then be removed. (Fig. 7)60: Bind Head Screw A4.0 x6 MFZN2BL (EG340290)90: Bind Head Tapping Screw-B A4.0 x8 MFZN2BL (VC688800)Fig. 6D60: Pan Head Screw SP4.0 x8 MFZN2Y (EL200020)D80: Pan Head Screw SP4.0 x8 MFZN2Y (EL200020)D90: Bind Head Tapping Screw-B 3.0 x6 MFZN2BL (EP600230)Fig. 76090D60DC assemblyAC assemblyTR holder DC Assembly Side Panel AssemblyD80D90BR holderDCAO811LSI PIN DESCRIPTIONPINNO.I/OFUNCTIONNAMEPINNO.I/OFUNCTIONNAME12345678910111213141516171819202122232425262728293031323334353637383940syncatimcctimcbtiVCCGNDmcatiGNDsiat0siat1siat2siat3atiGNDatosoat3soat2soat1soat0VCCGNDmcatoGNDmcbtomcctosyncatoclkselato-sel0ato-sel1bitsel2bitsel1bitsel0VCCGNDext-sync2ui0ui1ui2ui3si-sel0si-sel1IIIIIIIIIOOOOOIIIIIIISynch. word input terminal for ati, siat3-0 input64 fs clock input terminal for ati, siat3-0 input128 fs clock input terminal for ati, siat3-0 inputPower supply (+5 V)Ground256 fs clock input terminal for ati, siat3-0 inputGroundSerial data input terminalOptical input terminalGroundOptical output terminalSerial data output terminalPower supply (+5 V)Ground256 fs clock input terminal for ato, soat3-0 outputGround128 fs clock input terminal for ato, soat3-0 output64 fs clock input terminal for ato, soat3-0 output Synch. word input terminal for ato, soat3-0 outputClock select terminal for ato, soat 3-0 output 0: mcato,mcbto,mccto,syncato 1: mcai,mcbi,mcci,synciFormat select terminal for ato, soat3-0 outputFormat select terminal for ato, soat3-0 output Bit shift select terminal for the ato outputPower supply (+5 V)GroundSynch. detect output terminal 2U-bit input terminal for optical outputinput format select terminal for si3-0input format select terminal for si3-0i41424344454647484950515253545556575859606162636465666768697071727374757677787980syncimccimcbiVCCGNDmcaiGNDsi0si1si2si3GNDso3so2so1so0VCCGNDmcaoGNDmcbomccosyncoso-sel1so-sel0uo3uo2uo1uo0ext-sync1VCCGNDclkGND/resGNDwc-atmuteati-sel1ati-sel0IIIIIIIIOOOOIIIIIIOOOOOIIOIIISynch. word input terminal for si3-0 input64 fs clock input terminal for si3-0 input128 fs clock input terminal for si3-0 inputPower supply (+5 V)Ground256 fs clock input terminal for si3-0 inputGroundSerial data input terminalGroundSerial data output terminalPower supply (+5 V)Ground256 fs clock input terminal for so3-0 outputGround128 fs clock input terminal for so3-0 output64 fs clock input terminal for so3-0 outputSynch. word input terminal for so3-0 outputFormat select terminal for soat3-0 outputFormat select terminal for soat3-0 outputU-bit output terminal for optical outputSynch. detect output terminal 1Power supply (+5 V)GroundClock input terminal for word clock extractGroundSystem reset input terminalGroundWord clock output terminalData mute input terminalInput format select terminal for ati, siat3-0.input format select terminal for ati, siat3-0.SGH609080F-47F (XU235A00) ATSCIFC3: IC5015041100so sel11010so sel0not enable to setso0so2, 0so3-0 (8ch/line)(4ch/line)(2ch/line)input format 1100ati sel11010ati sel0atiati0ati2, 0ati3-0(8ch/line)(4ch/line)(2ch/line)input format 1100ato sel10: mcato,mcbto,mccto,syncato1: mcai,mcbi,mcci,synci1010ato sel0atosoat0soat2, 0soat3-0(8ch/line)(4ch/line)(2ch/line)output format1100si sel11010si sel0not enable to setsi0si2, 0si3-0 (8ch/line)(4ch/line)(2ch/line)input format AO812PIN