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Hughes JVC Projector 230 Sc Service Manual

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    							Chapter 5---Troubleshooting
    Model 230 Service Manual5-11
    Problem Check Possible solution Section
    No Response
    when using IR
    remote.Intermittent operation. Replace remote battery or
    move closer to the
    projector. Stay in the “Line
    of sight” of the projector IR
    Receiver.
    New Software
    wont load
    properlySwitch position 4 on
    switch block on System
    Controller board is in
    incorrect position.Switch position 4 on
    System Controller switch
    block sets the speed for
    Port A. This speed is
    reported in the Comm
    Setup menu for Port A.
    Switch position 4 must be
    in the UP position for a
    baud speed of 19200 and
    DOWN for 9600 baud.See
    menu
    under
    Comm
    Setup,
    Section
    4.5 of
    User
    Guide,
    Figure 5-
    1 of this
    manual,
    and
    Appendix
    B, page
    B-1, of
    this
    manual. 
    						
    							Chapter 5---Troubleshooting
    5-12Model 230 Service Manual 
    						
    							 Chapter 6---Parts List
    Series 230 Service Manual6-1
    6.0 Parts List
     Description Part no.
    Arc Lamp Module 104787
    Cathode Ray Tube (CRT) 103465
    Contrast Enhancer 104247
    CRT/Yoke Assembly 103350
    Ignitor Assembly, 1600W (Ignitor & Laser P.S.) 104781
    ILA®, SM Moving 3 x 4 Video (High Contrast)
    Add for Blue -14, for Green -15, for Red -16.102630
    ILA®, SM Moving 3 x 4 Video (Reduced Aperture)
    Add for Blue -14, for Green -15, for Red -16.100594
    Lens, Condensing 104805
    Lens, Relay 103943
    Manual, Operation (User’s Guide) 104810
    Manual, Service 104809
    PCA Convergence Deflection 105210
    PCA Horizontal/Vertical Deflection 102583
    PCA Raster Timing Generator 102589
    PCA System Controller 104678
    PCA Video Amplifier 105232
    PCA Video Processor 105234
    PCA, Backplane 102595
    PCA, Graphics Enhancer RGB VIC 104413
    PCA, RGBHV VIC 102597
    PCA, HDTV VIC (Option) 103765
    PCA, Quad RGB Input VIC (Option) 103668
    PCA, Quad Standard Decoder VIC (Option) 103545
    PCA, Scan Reversal 102585 
    						
    							Chapter 6---Parts List
    6-2Series 230 Service Manual
    DESCRIPTION PART NO.
    Power Cord (USA) 104769
    Power Cord (Japan) 104498
    Power Cord (Europe) 104768
    Power Supply, Arc Lamp 104495
    Power Supply, High Voltage 102566
    Power Supply, Low Voltage 102520
    Prism Assembly 103942
    Projection Lens, 1:1, Fixed 104130
    Projection Lens, 1.5:1, Fixed 104003
    Projection Lens, 3:1, Fixed 103052
    Projection Lens, 7:1, Fixed 104522
    Projection Lens, Zoom 103746
    Remote Control, Standard 104348
    Remote Control, Technician 104019
    Remote Control, Tethered Technician 105245
    Yoke Assembly, CRT 103467 
    						
    							Import/Export
    Model 230 Service Manual A-1
    Model 230 Configuration Data Export / Import Procedure
    Rev 1.0.0
    This appendix defines the steps to perform a Configuration Data Export & Import from the Model 230
    projector to a Host Computer. The Host Computer can be any system that has RS232 download and upload
    capability, including an IBM-PC compatible, an Apple MacIntosh, or a UNIX system. This paper describes
    the procedures for an IBM-PC running the Windows 3.1 OS. We will use the Windows “TERMINAL”
    application for communication with the projector. Other Terminal emulation programs can be used
    (ProComm, .), but all testing has been done with the TERMINAL application.
    Note 1:  The TERMINAL application setup is the same as for controlling the projector via an ANSI
    TERMINAL (see Model 230 User’s Guide, Section 4.11).
    Note 2:  Export/Import can be performed on either Port A or Port B.  The Port must be configured for
    ANSI Terminal. Port A speed is determined by DIP SWITCH #4 on the System Controller board.  DOWN
    is 9600 baud, UP is 19200 Baud.  Port B can be configured for 2400, 9600 (default), or 19200 through the
    Comm Setup Menu.  If both Port A and Port B are ANSI Terminals, PORT A must be used for
    Export/Import, so to use Port B, set Port A Device = None or Switcher, Port B Device = ANSI.
    Remember to Power Off (Control+P) and HW RESET (Push RESET button -figure 5-1 in Service
    Manual- or Circuit Breaker-on rear panel) after changing any configuration parameters.
    WARNING:  If you use 19200 Baud, your computer must have a 16550 UART installed on the Comm
    Port. An unbuffered  8550 UART will lose data during EXPORT. This data loss cannot be detected until a
    later IMPORT is attempted. Use 9600 if you are not sure. In all cases use  SOFTWARE FLOW CONTROL
    (XON/XOFF).
    WARNING:  Laptop computer users  must disable Advance Power Management (APM) during an Export.
    APM power pulling causes loss of data.
    EXPORT
    1. Make sure the Windows TERMINAL program is configured for SOFTWARE FLOW CONTROL
    (XON/XOFF). A corrupt Export file will result if SW flow control is not used.
    2. Choose the directory and filename for saving the Export Data. The Windows TERMINAL:
    Transfers: Receive Text File... dialog box will default to the c:\windows directory and no file.
    Create a directory (like \TEMP) (or have an existing one in mind) before starting the export
    process.
    3. 
    Model 230 Menu:   7. System + 5. Maintenance + 5. Export
     =================================
     |     Export Configuration      |
     | Start RECEIVE TEXT Download   |
     | to Host on Serial PORT A      |
     |                               |
     |       to Continue      |
     |       < ESC> to Cancel        |
     =================================
     
    4. 
    Windows TERMINAL:  Transfers + Receive Text File....
     
    4.1. Directories - set directory to desired download directory (C:\TEMP)
     
    4.2. File Name: - Type desired File Name (for example:  export1.txt)
      
    						
    							Import/Export
    A-2 Model 230  Service Manual
    4.3. Select OK with mouse or press Enter key (dialog will be removed)
     
    4.4. Verify TERMINAL screen shows status line at bottom:
     Stop,  Pause, Bytes: 0,  Receiving: EXPORT1.TXT
     
    5. 
    Model 230 Menu:
     
     Press ENTER key to start export download. NOTE: Some VT100 Emulator programs (ProComm)
    will send the ENTER automatically when step 4.3 above is performed. Expect 10 minutes to
    export 20 sources (500,000 bytes) at 9600 baud).
     
     Data Transfer will begin and continue until all source, channel, channel-source combination, and
    system data has been exported.  The following dialog is displayed on the projector screen during
    the transfer.
     
     =================================
     |     Export Configuration      |
     |  EXPORT IN PROGRESS ... wait  |
     | - Press ESC to Abort          |
     =================================
     
     The following message is sent at the end of the export data.
     
     ##########################
     # Export Complete        #
     # STOP Host Download Now #
     # Then, Press ESC        #
     ##########################
     .END
     
     A similar message is displayed on the projector screen :
     
     =================================
     |     Export Configuration      |
     | EXPORT COMPLETE               |
     | -> STOP Host Download         |
     | -> THEN Press ESC             |
     =================================
     
    6. Windows TERMINAL:
     
     Select the Windows TERMINAL STOP button with the mouse to end the Receive Text File...
    transfer.
     
    7. Model 230 Menu:
     
    Press Esc to exit the projector Export operation and return to the Maintenance Menu.
    IMPORT
    1. Know the directory and filename for uploading  the Import Data.  The Windows TERMINAL:
    Transfers: Send Text File... dialog box will default to the C:\windows directory which contains
    several *.txt files - SETUP.TXT is NOT a Projector EXPORT file!
      
    						
    							Import/Export
    Model 230 Service Manual A-3
    2. Import will alter all projector setup data.  Prior to starting, several warnings are displayed to
    prevent unintentional loss of setup data.
     
    3. 
    Model 230 Menu:   7. System + 5. Maintenance + 6. Import
     =================================
     |           WARNING           
     |  Importing New Configuration  |
     |  ALL SETUP DATA WILL BE
    |  CHANGED!                     |
     |                               |
     |       to Continue      |
     |       < ESC> to Cancel        |
     =================================
     
    4. Press ENTER to continue with the Import.
     =================================
     |     Import Configuration       |
     |  Old Configuration will be     |
     |  restored if import is Aborted |
     |                                |
     |       to Continue       |
     |       < ESC> to Cancel         |
     =================================
    5. Press ENTER to continue with the Import.
     =================================
     |     Import Configuration       |
     |  Start SEND TEXT Upload from   |
     |  Host on Serial PORT A         |
     |  -To Abort:                    |
     |  ->Stop Host Upload,           |
     |  ->THEN Press ESC to Abort     |
     =================================
    6. 
    Windows TERMINAL:  Transfers + Send Text File....
     
    6.1. Directories - set directory to desired upload directory (C:\TEMP)
     
    6.2. File Name: - Type desired File Name (for example: import1.txt)
     
    6.3. Select OK with mouse or press Enter key (upload begins)
     
    6.4. Verify TERMINAL screen shows status line at bottom:
     Stop,  Pause, “% complete bar”, Sending: EXPORT1.TXT
     
      6.5 Data transfer will continue until complete or an arror occurs or the User Aborts:
    Expect 10 minutes to import 20 sources (500,000 bytes) at 9600 baud.
     
      6.6 At successful end, TERMINAL will remove the bottom line.
     
    7. 
    Model 230 Menu:
     
     When the projector detects the successful end of the transfer the following screen is displayed:
     =================================
     |     Import Configuration      |
     |  IMPORT COMPLETE              |
     |  New Configuration is active  | 
    						
    							Import/Export
    A-4 Model 230  Service Manual
     |                               |
     | - Press ESC to Continue       |
     =================================
     
     Press ESC to exit the projector Import operation and return to the Maintenance Menu. There is a
    10 second pause before the screen is redrawn.
     
    8. USER ABORT:
     
     Windows TERMINAL: 
    FIRST press STOP to end the Host Upload transfer.
     
     Model 230 Menu: 
    THEN press 
    ESC to abort the projector Import operation.
     
     =================================
     |     Import Failed             |
     |  IMPORT ABORTED BY USER       |
     |    Old Data was Restored.     |
     | - STOP Host SEND DATA,        |
     |   THEN Press ESC              |
     =================================
     
     
    FINALLY, press 
    ESC to exit the projector Import operation and return to the Maintenance Menu.
    There is a 10 second pause before the screen is redrawn.
     
    9. DATA TRANSFER ERROR (Example)
     
     Model 230 Menu will display:
     
     =================================
     |     Import Failed             |
     |  Bad EXPORT File Format       |
     |   Old Data was Restored.      |
     | -> STOP Host SEND DATA,       |
     | -> THEN Press ESC             |
     =================================
     
     9.1. Windows TERMINAL: 
    FIRST press STOP to end the Host Upload transfer.
     
     9.2. Model 230 Menu:  
    THEN press 
    ESC to exit the projector Import  operation and return  
    to the Maintenance Menu. There is a  10 second pause before the screen is redrawn.
      
    						
    							Glossary
    Model 230 Service Manual B-1
    Glossary Of Terms
    Amorphous
    Without definite form; not crystallized.
    Arc Lamp
    The xenon arc lamp in the Model 230 projector. It
    operates at high temperatures (160° to 200°) and
    produces dangerously intensive light with
    hazardous levels of ultraviolet and infrared
    radiation.
    Aspect Ratio
    The ratio of the picture width to picture height.
    The standard U.S. television aspect ratio is four
    units wide to three units high (4:3). High
    Definition Television (HDTV) is 16:9.
    Bandwidth
    The transmission or reception capacity of a
    computer or communications channel measured
    in bits per second in digital and in Hertz in
    communications. Bandwidth is the difference
    between the lowest and highest frequencies
    transmitted or received. Wider bandwidth
    provides more information or picture detail
    capability.
    Chrominance
    Abbreviated as C.  Color information signal or
    signals.
    Cold Mirror
    Mirror that absorbs infrared light so that its
    reflection contains only cold light that does not
    transmit appreciable heat.  As a result of this
    absorption of infrared heat radiation, cold
    mirrors get quite hot.
    CRT (Cathode Ray Tube)
    The vacuum tube used as a display screen in
    video terminals or television sets.  Commonly
    called the picture tube.
    Dichroic Mirrors
    The white light of the xenon arc lamp is
    separated into red, green and blue by means of
    dichroic mirrors which reflect only one color and
    pass all others.
    Field
    One half of a complete video frame. Odd lines in
    one field and even lines in another make up one
    frame. 
    						
    							Glossary
    B-2 Model 230 Service Manual
    Frame
    One complete TV picture or screen of
    information. It is composed of two fields and has
    a total of 525 scanning lines in NTSC
    transmission.
    Horizontal Scan
    Reverses the image projection for front or rear
    Reversal Jumper
    projection. Located on the Horizontal Deflection
    Board.
    Horizontal Size Coils
    Adjusting coils on the Scan Reversal Board.
    Used to adjust the horizontal size (width).
    Hot Spot
    The Arc Lamp’s brightest area on the screen.
    Used to align and focus the Arc Lamp.
    Hue
    Also referred to as tint.  A specific color such a
    blue, pink or aqua.  Hue or tint control on a
    display device adjusts red/green balance.
    Ignitor
    Provides a momentary high voltage to excite the
    gases in the Xenon Arc Lamp to ignite.
    Image Light Amplifier 
    A device that uses low-intensity images to phase
    ILA
    ®modulate a high-intensity light through a liquid 
    crystal layer. It is a key component in 
    producing very bright, high resolution images 
    from Hughes-JVC large-screen projectors.
    Image Mirror
    Directs the blue and red images toward the 
    Combining Prism.
    Interlacing
    The technique that refreshes a display screen by
    alternately displaying all the odd lines (field one)
    and then all the even lines (field two) of one
    frame.
    I/R Windows
    The Model 230 Projector has two I/R windows,
    one in front, one in back.  These windows receive
    projector control signals from the I/R remotes.
    Lamphouse Dock
    The housing that contains the Ignitor, the Laser
    Power Supply, and the Arc Lamp assembly.
    Laser Power Supply
    Provides boost voltage through a spark gap to
    the Ignitor.
    Lumen
    A unit of measure of the flow, or rate of emission,
    of light.  An ordinary wax candle generates 13
    lumens while a 100 watt bulb generates 1,200
    lumens. 
    						
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