Yamaha AI 8 Service Manual

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Yamaha AI 8 Service Manual
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  1 YDP-123C SERVICE MANUAL PA   011505 Copyright (c) Yamaha Corporation. All rights reserved. PDF-K- ****  K ’01.03 HAMAMATSU, JAPAN CONTENTS REVISED PAGE LIST ............................................................ 2-1 SPECIFICATIONS.................................................................. 3-1 PANEL LAYOUT..................................................................... 3-2 DIMENSIONS ......................................................................... 3-3 CONNECTOR CIRCUIT DIAGRAM .......................................... 4 BLOCK DIAGRAM..................................................................... 6 DISASSEMBLY PROCEDURE ................................................. 7 LSI PIN DESCRIPTION........................................................... 11 IC BLOCK DIAGRAM .............................................................. 14 CIRCUIT BOARDS .................................................................. 16 INSPECTION...................................................................... 21/23 TEST PROGRAM ............................................................... 26/31 ERROR MESSAGES............................................................... 42 PARTS LISTCIRCUIT DIAGRAM ANALOG INPUT BOX MODELREFERENCE SERVICE MANUAL AI8-ML8 LMY2-ML PA011502AI8-AD8 LMY4-AD PA011503AI8-ML4AD4 LMY4-AD PA011503LMY2-ML PA011502AI8-ML8AB LMY2-MLAB PA011736AI8-ML8F LMY4-MLF PA011737  AI82-1 REVISED PAGE LIST SPECIFICATIONSPANEL LAYOUTDIMENSIONSBLOCK DIAGRAMDISASSEMBLY PROCEDUREIC BLOCK DIAGRAMCIRCUIT BOARDSAC, IPC3, DR, PSB, LED1DC, MB1IFC2INSPECTIONTEST PROGRAMERROR MESSAGES ITEM 3-13-23-367,91416~2016192021~2223~2742 PAGE <PARTS LIST> OVERALL ASSEMBLYSIDE PANEL ASSEMBLYMOTHER ASSEMBLYELECTRICAL PARTS ITEM 2, 3, 44, 567~12 PAGE <CIRCUIT DIAGRAM> UNC CIRCUIT DIAGRAM002003IFC2 CIRCUIT DIAGRAM002003004005006007008IPC1 CIRCUIT DIAGRAMIPC3 CIRCUIT DIAGRAMAICOM CIRCUIT DIAGRAM002 ITEM 349101112131415161718 PAGE  AI82-2 WARNING: 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 NOTICE This 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 distributor's 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 OFFduring disassembly and parts replacement. Recheck allwork before you apply power to theunit. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to thosesrcinally installed. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord IMPORTANT. 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.  SPECIFICATIONS AI83-1 Sampling frequency (external sync)Power supplyPower consumptionDimensions (W x H x D)WeightOperating temperaturePower cable lengthCooling fan speedAccessories 39.69 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 m I/O connectors OUTPUT A, B, CWORD CLOCK INWORD CLOCK OUT Level RS-422TTL/75 Ω (ON/OFF)TTL/75 Ω Type D-sub, half-pitch, 68-pin connector (female)BNC ConnectorBNC Connector Digital I/Os CardLMY2-MLLMY4-AD Input Channel 1A or 1B, 2A or 2BChannel 1 – 4 Slots
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