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Hughes Jvc 200 Projector Service Manual

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    							SERVICE 
    MANUAL 
    Model 200 Projector 
     
      
    						
    							 
    DECLARATION OF CONFORMITY  
    PER ISO/IEC GUIDE 22 AND EN 45014 
      
    Manufacturer: Hughes JVC 
       2310 Camino Vida Roble 
       Carlsbad, Ca 92009 
       USA 
    Hughes-JVC declares that this product conforms to the following Product \
    Specifications (Directive/Standard): 
     
     Safety: EN 60950 
       IEC 950 (1992) 
     
     EMC:  EN 55022 (1988) / CISPR-22 (1986) Class A   
       EN 50082-1 (1992) / IEC 801-2(1991) 
       EN 50082-1 (1992) / IEC 801-3(1984)  
       EN 50082-1 (1992) / IEC 801-4(1988) 
        
       ANSI C63.4-1992, FCC, Part 15, Class A 
     
    In addition, the above product complies with the requirements of the Low 
    Voltage Directive 73/23 EEC and the EMC Directive 89/336/EEC. 
     
    104111 First Edition November 1996 
    104111 Rev A February 1997 
      
      
     
     
    Confidential and proprietary information.  
    © Copyright 1993 by Hughes-JVC Technology Corporation.  
    All worldwide rights reserved.  
    This manual was produced by Hughes-JVC Technology Corporation and may be\
     
    revised without prior notice. 
    No part of this manual may be reproduced in any form without the express\
     
    written permission of Hughes-JVC Technology Corporation. 
    ILA® is a registered trademark of Hughes-JVC Technology Corporation. 
     
     
     Model 200 Service Manual ii  
    						
    							 
    Table of Contents 
     
    Safety Information........................................................................\
    ..........v 
    Chapter 1  Introduction 
    1.1   Acronyms Used in Manual...........................................\
    ..............................1-1 
    1.2   Safety........................................................................\
    ................................1-2 
    1.2   Updates........................................................................\
    .............................1-2 
    1.4   Tool List........................................................................\
    .............................1-2 
    Chapter 2  Functional Description 
    2.1   Introduction........................................................................\
    ........................2-1 
    2.2   Optical Section........................................................................\
    ..................2-2 
    2.3   Electronics System........................................................................\
    ............2-7 
    2.4   Image Light Amplifier Technology.............................................................2-63 
    Chapter 3  Service Adjustments 
    3.1   Arc Lamp Focus and Alignment................................................................3-1 
    3.2   Arc Lamp Current Setting........................................................................\
    ..3-4 
    3.3   Electronic Module Tilt-Up........................................................................\
    ..3-5 
    3.4   ILA® Back Focus........................................................................\
    ...............3-5 
    3.5   CRT Mechanical Focus........................................................................\
    .....3-7 
    3.6   CRT Rotation........................................................................\
    .....................3-9 
    3.7   CRT Electronic Focus........................................................................\
    .......3-10 
    3.8   ILA® Overlap........................................................................\
    .....................3-10 
    3.9   Jumper Settings (Front/Rear or Inverted Vertical).....................................3-12 
    3.10 Vertical and Horizontal Size Settings........................................................3-13 
    3.11 Software Updating........................................................................\
    .............3-15 
    3.12 Cleaning Lenses, ILA® Assemblies and Mirrors.......................................3-17 
    Chapter 4  Maintenance (Removal/Replacement) 
    4.1   Introduction........................................................................\
    ........................4-1 
    4.2   Projector Covers........................................................................\
    ................4-4 
    4.3   Air Filters........................................................................\
    ...........................4-5 
    4.4   Arc Lamp Assembly.................................................\
    ..................................4-5 
    4.5   Arc Lamp Power Supply........................................................................\
    ....4-8 
    4.6   Low Voltage Power Supply..........................................\
    ..............................4-8 
    4.7   High Voltage Power Supply.......................................................................4-8 
    4.8   Raster Timing, System Controller, Video Processor PCBs.......................4-10 
    4.9   Convergence/Deflection PCB....................................................................4-11 
    4.10 Horizontal/Vertical Deflection PCB............................................................4-12 
    4.11 Video Input Cards (VICs)........................................................................\
    ..4-13 
    4.12 Video Amplifier PCB........................................................................\
    ..........4-14 
    4.13 Scan Reversal Board........................................................................\
    ........4-16 
    4.14 CRT/Yoke Assembly........................................................................\
    .........4-16 
    4.15 ILA® Assembly........................................................................\
    ..................4-18 
    4.16 Relay Lens........................................................................\
    ........................4-19 
    4.17 Projection Lens........................................................................\
    ..................4-20 
    4.18 Prism Assembly........................................................................\
    .................4-21 
     
    Model 200 Service Manual   iii 
    						
    							 
    Chapter 5  Troubleshooting 
    PCB Status LEDs........................................................................\
    ......................5-1 
    Error Codes ........................................................................\
    ...........................5-4 
    Troubleshooting Guide........................................................................\
    ..............5-5 
    Chapter 6  Parts List........................................................................\
    ......6-1 
    Appendix A Import/Export...................................................A-1 
    Appendix B Glossary........................................................................\
    ....B-1 
     
     Model 200 Service Manual iv  
    						
    							  Safety Information 
    Safety Information 
    Introduction 
    Read entire Safety Chapter thoroughly before performing any 
    maintenance or service on the projector.  Only qualified service 
    personnel should perform procedures and adjustments. 
    Safety Equipment: Use safety equipment specified in the 
    projector’s Maintenance training and certification program or 
    equivalent maintain equipment. 
    WARNINGS AND CAUTIONS! 
    Warnings and Cautions in this manual should be read thoroughly 
    and strictly adhered to. Warning and Caution definitions and 
    symbols are as follows: 
    WARNING SYMBOL Warns user of a 
    potential electric shock hazard in a procedure or situation that 
    could result in personal injury if improperly performed. 
    CAUTION SYMBOL Warns user of a 
    potential safety hazard or potential light hazard from ultraviolet, 
    infrared or bright light that could cause severe eye injury or a 
    situation that could result in damage to the equipment if 
    improperly used. 
     
     
     
    Model 200 Service Manual   v 
    						
    							Safety Information 
    Installation Safeguards 
     
    WARNING!!! Procedures in this service manual require 
    removing the projector’s covers to access internal component to 
    remove, replace, service and adjust the projector. Only Hughes-
    JVC Certified Technicians are qualified to perform these 
    procedures.  Before removing or replacing any internal 
    components or subassemblies, verify that the circuit breaker on 
    the back panel is in the Off position and remove the power plug. 
    Any adjustments performed that require covers off and power on 
    should be performed with extreme care.  Be especially aware of 
    all hazardous areas indicated by warning and caution labels. 
     
    CAUTION!!! Do not use a forklift to lift the projector without 
    using a safe shipping pallet. Lifting the projector without 
    supporting the weight at the foot locations can cause severe 
    damage to the projector. 
    If there is any visible damage to the power cable, disconnect 
    power to the projector until the damaged cable is replaced. Install 
    the projector on a smooth, vibration-resistant level surface, or 
    ceiling mount, in an area free from dust and moisture. Do not 
    place the equipment in direct sunlight or near heat-radiating 
    appliances. Smoke, steam and exposure to direct sunlight could 
    adversely affect the internal components. 
    If mounting the projector, use hardware that can handle a 
    minimum of three (3) times the projector weight. 
    Heat Safeguards 
    Fans and Ventilation: The projector has multiple fans to cool the 
    system. Do not block the intake or outflow of any fans.  Heat is 
    emitted within the system and must be properly dissipated to keep 
    the system running correctly.  Blocking air intake or exhaust ports 
    can lead to projector overheating.  Do not enclose the unit in a 
    restricted space (refer to the physical access and thermal 
    clearance illustration guidelines). 
     Model 200 Service Manual vi  
    						
    							  Safety Information 
    CAUTION! Do not unplug the power cord until after the arc 
    lamp fan has stopped running. This fan protects the arc lamp from 
    overheating. Disconnecting power before the cooling fans have 
    stopped running can shorten Arc Lamp life. 
    Light Safeguards 
    Ultra Violet and Infrared Light 
    Eye and face protection from ultra violet light and infrared light in 
    accordance with the following conditions: 
    1.  X3 (up to 375 nanometers), ANSI approved, shade 
    goggles must be worn by anyone near the projector 
    when it is lit and the cover is off. 
    2.  X5 (375 to 700 nanometers), ANSI approved, shade 
    goggles when actually working on the projector 
    near the arc lamp source. 
    WARNING, BRIGHT LIGHT!!!  
    Never look directly at the Arc Lamp, the lighted Projection 
    Lens or into the lamp housing, from any distance, when the 
    projector is on. Direct exposure to light of this brightness can 
    cause severe eye injury.  
    Dangerous levels of ultraviolet and infrared radiation, 
    dangerous glare, very high temperatures (180°C to 300°C) and 
    high internal gas pressure are present at the Xenon Arc 
    Lamp. The lamp is contained in a protective reflector housing 
    module and should not be operated outside this housing or 
    outside of the projector. When replacement is needed, the arc 
    lamp must be replaced as an entire module, as shown in this 
    Model 200 Service Manual. Do not open the lamp housing or 
    attempt to replace the Arc Lamp inside its module! Do not 
    touch the Arc Lamp, or any connections, when the lamp is 
    ignited or is arcing. Any servicing of the Arc Lamp must 
    remain restricted to Hughes-JVC certified maintenance 
    personnel.  
     
    Model 200 Service Manual   vii 
    						
    							Safety Information 
    Electrical Safeguards 
      
     
    WARNING!!! High Voltage points up to 40,000 volts 
    are exposed inside the covers. Allow at least one minute for 
    the high voltage to bleed off, even after power is turned off. 
    High voltage access. Front 
    and rear covers contain 
    safety interlocks. Defeat 
    restricted to Hughes-JVC 
    certified service personnel! 
    Due to high voltage danger, DO NOT TOUCH 
    • CRT cables. These cables can cause severe shock from a 
    tiny, invisible crack or hole and should never be touched 
    while projector power is on. 
    • CRT anodes. 
    • Main power ± supply posts. 
    • Arc Lamp main power ± posts. 
    • CRT yoke assemblies and other proximity electrical 
    assemblies, components and wiring. If performing the ILA® 
    Back Focus, CRT Mechanical Focus, CRT rotation, or 
    ILA® Overlap adjustment, as outlined in Chapter 3, always 
    use an ANSI/ASTM 10,000 volt rated glove. Periodically 
    check the condition of the gloves for cracks. 
    Power Supply 
    The projector operates from a 100V - 240V, 20 Amp, single-
    phase, 50/60 Hz AC power source. Ensure local power source 
    matches these requirements before operating! 
    For continued safe and reliable operation, only use cables 
    supplied by the manufacturer for power and signal connections. 
    Fluid Safeguards 
    Certain components of the projector contain fluid. If any fluid from 
    the projector contacts the skin, wash off with soap and water. If 
    any fluid from the projector splashes into the eyes, rinse with cool 
    running water. 
     Model 200 Service Manual viii  
    						
    							  Safety Information 
    Ventilation and Foreign Object Retrieval 
    CAUTION! Ensure projector’s multiple fans are free from 
    obstructions and operating properly. Air filters are located at vent 
    ports on the cover. Air filters require periodic cleaning to ensure 
    adequate cooling of the projector (Section 4.3). Ensure that all 
    vent ports are clear of obstructions. 
    Keep the inside of the projector free from foreign objects, such as 
    hairpins, nails, paper, etc.  Do not attempt to retrieve any object or 
    insert metal objects such as wire and screwdrivers inside the unit.  
    If an object falls inside the projector, immediately unplug the 
    projector and call a Hughes-JVC certified technician to remove 
    object. 
    Model 200 Service Manual   ix 
    						
    							Safety Information 
     Model 200 Service Manual x  
    						
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