1. Manuals
  2. Brands
  3. Hughes JVC Manuals
  4. Projector
  5. Model 200
  6. Service manual

Hughes JVC Model 200 Service Manual

Jvc projector instruction manual
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE
MANUAL
Model 200 Projector

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Model 200 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Hughes JVC Model 200

Summary of Contents for Hughes JVC Model 200

  • Page 1 SERVICE MANUAL Model 200 Projector...

  • Page 2: Declaration Of Conformity

    © 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.

  • Page 3: Table Of Contents

    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 ... v ® Assemblies and Mirrors ... 3-17...
  • Page 4 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 ... Appendix B Glossary ... B-1 Model 200 Service Manual...

  • Page 5: Safety Information

    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...

  • Page 6: Heat Safeguards

    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.

  • Page 7: Light Safeguards

    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.
  • Page 8 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.
  • Page 9 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...
  • Page 10 Safety Information Model 200 Service Manual...

  • Page 11: Safety

    1.0 Introduction This Service Manual is designed to be used with the Model 200 User’s Guide. This service manual provides information on the: — Projector functional description; — Service adjustments, removal and replacement of subassemblies; and — Troubleshooting. The user’s guide covers the projector’s installation, operation, setup adjustments, and specifications.

  • Page 12: Acronyms Used In This Manual

    HVPS High Voltage Power Supply Inter-Integrated Circuit ® Image Light Amplifier Input/Output Infrared Kilohertz Light Emitting Diode LVPS Low Voltage Power Supply NTSC National Television Standards Committee Phase Alternating Line Printed Circuit Board Phase Lock Loop Model 200 Service Manual...
  • Page 13 Model 200 Service Manual PLUGE Picture Line-Up Generating Equipment Random Access Memory Red, Green and Blue RGBHV Red, Green, Blue, Horizontal, Vertical Read Only Memory Raster Timing Generator System Controller Board SECAM Sequential couleur a memoire (sequencial color with memory...
  • Page 14 Chapter 1---Introduction Model 200 Service Manual...

  • Page 15: Introduction

    2.3.11 Backplane PCB... 2-62 2.4 Image Light Amplifier Technology ... 2-63 2.1 Introduction The assemblies and components in the Model 200 projector are contained mainly in the five sections below: • The Optics Assembly Section is located at the front area of the projector.

  • Page 16: Optical System

    3 CRTs, 3 Relay Lenses, 3 ILA Video Amplifier Board. 2.2 Optical System Introduction: The Model 200 Optics Assembly divides white light from the Arc Lamp into its three color components, Red, Green and Blue. This light is then modulated with the image signal to form three single color images.
  • Page 17 The vertically polarized light then passes through the prism to the projector lens. In this manner the ® assembly combines the image from the CRT with the high intensity light from the arc lamp.

  • Page 18: Arc Lamp Light Path

    Xenon Arc Lamp/Condensing Lens: High pressure, ionized xenon gas supports a high-current electrical arc to produce the intense, white light used in the Model 200 projector. The high intensity light output from the Xenon Arc Lamp is reflected by an elliptical metal reflector to a Condensing Lens where the light beam is condensed and directed to the Cold Mirror.
  • Page 19 ILA Assembly. Each of these three light beams independently combine with the ® image in their own (Red, Green or Blue) color systems at the ILA assemblies as described in Section 2.2.1, Image Path. Model 200 Service Manual...
  • Page 20 Chapter 2---System Description Figure 2-1. Optical System Block Diagram Model 200 Service Manual...

  • Page 21: Electronics System

    2.3 Electronics System 2.3.1 General Description The Model 200 Electronics System includes nine printed circuit assemblies. They provide all the controlling voltages and signals to adjust and correct picture settings, geometry, convergence, and shading (see Chapter 4 of the User’s Guide). The Electronics...

  • Page 22: Power Supplies

    2.3.2 Power Supplies The Model 200 includes three power supply assemblies. • Low Voltage Power Supply • Arc Lamp Power Supply • High Voltage Power Supply Low Voltage Power Supply (LVPS) INPUT Figure 2-3. LVPS Input/Output Diagram Main Functions: •...
  • Page 23 The +5.1V Standby is on whenever AC power is connected to the projector and the circuit breaker on the rear panel is in the On position. The +24V standby power for the fans turns on when the...
  • Page 24 The High Voltage Power Supply (HVPS) is located on top of the LVPS on the right side of projector ( as viewed from rear). This supply provides the anode, focus, and screen voltages required for the three CRTs in the Model 200 projector. The following functions are provided by HVPS: •...
  • Page 25 Table 2-1. High Voltage Power Supply I/O signals Raster Timing Generator PCB INPUT DESCRIPTION Model 200 Service Manual R A N O D E J58-1 G A N O D E J5 9-1 B A N O D E J60-1...
  • Page 26 + 15 V for use by the HVPS + 80V + 80 V for use by the HVPS - 15V - 15V for use by the HVPS 2-12 Video Processor PCB Video Amplifier PCB System Controller PCB Low Voltage Power Supply Model 200 Service Manual...
  • Page 27 Focus voltage for the three CRTs. About 7 KV GRN_FOCUS BLU_FOCUS Interlocks and protection: This section describes the interactions between boards where one board may cause others to perform protection functions. Input A high signal at /HV_ENA shuts off the HVPS. Model 200 Service Manual CRTs 2-13...

  • Page 28: Video Input Cards

    The RGB Video Input Card (RGB_VIC) is located on the back side of the projector. It has five BNC input connectors. It provides the RGB and sync interface for the Model 200 projector. The following functions are provided by the RGB VIC: •...
  • Page 29 HORIZ. Horizontal or composite sync signal VERTICAL Vertical sync signal OUTPUTS DESCRIPTION Model 200 Service Manual Description Select line for the RGB_VIC. Low = Selected RGB_VIC. VIC identification lines. 0000 for RGB_VIC. Revision of the RGB_VIC. RGB_VIC status line. Low = operational RGB_VIC.
  • Page 30 Software selects the desired input channel through the IIC bus and ensures that only one RGB VIC is enabled. When one of the channels assigned to the Quad RGB VIC is selected, the /SEL_VIC line to the Video Processor is enabled. 2-16 System Controller Board Model 200 Service Manual...
  • Page 31 HDTV YPbPr VIC This color decoder video input card (YPbPr_VIC) is located on the back side of the projector and contains three BNC input connectors which can be used for two different inputs, YPbPr or GBR. This board converts these color component signals to RGB type video signals.
  • Page 32 YPbPr_VIC is selected and is in YPbPr input mode. Both LEDs are off when the YPbPr_VIC is not selected as the input to projector. Only one LED can be on at one time. IIC Interface The YPbPr_VIC is controlled by the serial bus interface. The IIC bus comes from the System Controller Board through the Backplane Board.
  • Page 33 DESCRIPTION /SELECT Selection indicator for VIC. Low indicates the selected YPbPr_VIC. Video signals. about 0.7 to 1 VPP Model 200 Service Manual Description Selects YPbPr input mode for the YPbPr_VIC. Low = Selected YPbPr input mode. Selects RGB input mode for the YPbPr_VIC.
  • Page 34 The following functions are provided by the Quad Standard Decoder VIC: • Select input source-Composite or S-video • Select standard-AUTO/NTSC/PAL/SECAM/4.43NTSC • Conversion of composite and S-video signals to RGB video signals • Separation of syncs from the input signal 2-20 System controller board Model 200 Service Manual...
  • Page 35 VIC is accomplished through the IIC control bus which provides the /SEL_VIC signal. Table 2-4. Quad Standard Decoder VIC IIC Interface Information SOURCE STANDARD Model 200 Service Manual /SELECT Pin callouts are to P12, P14, or P18, depending on which VIC slot is being used. Description...
  • Page 36 System Control Board and the VIC. 2-22 Data for adjustment of Hue Data for adjustment of color Data for adjustment of Sharpness Selection of VTR mode Selection of Video Noise Reduction mode Projector Inputs Video Processor Board System Controller Board Model 200 Service Manual...
  • Page 37 Low Voltage Power Supply INPUTS DESCRIPTION +5.1 V +5.1 V supply for use by The Quad Decoder VIC. +15 V + 15 V supply for use by the Quad Decoder VIC. Interlocks and protection None Model 200 Service Manual 2-23...

  • Page 38: Video Processor Pcb

    Sensitivity and Threshold signal input and control • Automatic limiting for Contrast, G2, and internal video The Video Processor I/O diagram and the list of inputs and outputs provide information to allow the technician to perform module-level troubleshooting. 2-24 Model 200 Service Manual...
  • Page 39 (I = Input to the VPB, O = Output from the VPB): Table 2-6. Video Processor IIC communication Information RED_CONT GRN_CONT BLU_CONT BRIGHTNESS BEAM CURRENT Model 200 Service Manual H_SYNC V_SYNC GRN_SYNC B17 GRN INPUT A28 RED_VIDEO GRN_VIDEO B4 BLU_VIDEO VIDEO...
  • Page 40 0 Volt to 1 Volt 2-26 Red G2 Control Green G2 Control Blue G2 Control Gamma correction Gamma correction G1 bias level Issues to SCB that Video Amplifier is OK Beam current control Issues to SCB that VPB is OK Model 200 Service Manual...
  • Page 41 Voltage signal proportional to cathode current averaged over several horizontal lines in the red CRT. Voltage level is + mV/µA GRN_BEAM Similar to RED_BEAM BLU_BEAM Similar to RED_BEAM /VA_OK Issued from the VAB to indicate VAB working properly Model 200 Service Manual 2-27...
  • Page 42 H_VIC #2 Similar to H_VIC #1 H_VIC #3 Similar to H_VIC #1 V_VIC #1 Vertical sync signal input from video input card #1 V_VIC #2 Similar to V_VIC #1 V_VIC #3 Similar to V_VIC #1 2-28 Model 200 Service Manual...
  • Page 43 /SEL_VIC #3 Similar to /SEL_VIC #1 Low Voltage Power Supply INPUTS DESCRIPTION + 5.1 volts Power supply to digital components + 15 Volts Power supply to analog components - 15 Volts Power supply to analog components Model 200 Service Manual 2-29...

  • Page 44: Video Amplifier Pcb

    2.3.5 Video Amplifier The Video Amplifier Board (VAB) is located at the back side of the projector under the necks of the three CRTs. It contains three separate video amplifiers, one each for red, green, and blue. The outputs from these video amplifiers connect directly to the CRTs and provide all electrical connections to the CRTS except for the anode voltages.
  • Page 45 Those signals are subdivided into inputs and outputs. Input refers to an Input to the VAB, output refers to an output from the VAB. Model 200 Service Manual RED_BEAM RED _CATHODE...
  • Page 46 Focus supply for CRTs. about 7 KV GRN_FOCUS BLU_FOCUS OUTPUTS DESCRIPTION ARC_GND CRT ground (anode supply return line) Horizontal/Vertical Deflection Board INPUTS DESCRIPTION /SWEEP_OK Deflection detection line. open collector, low = good deflection 2-32 Video Processor Board Model 200 Service Manual...
  • Page 47 +15 V supply for use by Video Amplifier Board. -15 V -15 V supply for use by Video Amplifier Board. +80 V +80 V supply for use by Video Amplifier Board. Interlocks and protection: None Model 200 Service Manual CRTs System Power Supply 2-33...

  • Page 48: System Controller Pcb

    (for maintenance) rather than a normal operating mode. The SCB I/O diagram (Figure 2-12) and the list of Inputs and Outputs (Table 2-9) provide information for the technician to perform module-level troubleshooting. 2-34 Model 200 Service Manual...
  • Page 49 SCB. Table 2-9. System Controller Board I/O signals DESCRIPTION IIC_CLK IIC clock line. Clock line for control of synchronous data transfer over the IIC bus interface. Model 200 Service Manual RED_OVER GRN_OVER BLU_OVER SYSTEM Y_RED_CONV CONTROLLER...
  • Page 50 This signal is high for noninterlaced signals. 280_CLK Square wave signal, 50 % duty cycle, 280 times the frequency of horizontal sync. This clock is synchronized to the horizontal sync. 2-36 Raster Timing Generator Model 200 Service Manual...
  • Page 51 1 VPP. CORR_ Square wave HCT level synchronous signal for horiz axis. SYNC Horizontal/Vertical Deflection Board OUTPUTS DESCRIPTION IIC_CLK IIC clock line. Unidirectional clock line for control of synchronous data transfer over the IIC bus interface. Model 200 Service Manual 2-37...
  • Page 52 Signal to enable the 24V standby power LV_ENA Signal to enable the LVPS INPUTS DESCRIPTION /LAMP_OK Informs SCB that the Arc Lamp is installed, temperature is within limits, and lamp cooling blower is working 2-38 Arc Lamp Power Supply Model 200 Service Manual...

  • Page 53: Projection Lens

    Enables ALPS power OUTPUTS DESCRIPTION LENS_FOCUS Signal to lens focus motor LENS_ZOOM Signal to lens zoom motor INPUTS DESCRIPTION /FRONT_IR Input from front infrared receiver /REAR_IR Input from rear infrared receiver Model 200 Service Manual Projection Lens Front IR 2-39...

  • Page 54: Raster Timing Generator Pcb

    Band D: from 55.5 KHZ to 90 KHZ. These bands are outputted through the IIC interface to be used by the System Controller Board. These lines are also outputs of the RTG board through the Backplane Board. The 2-40 Model 200 Service Manual...
  • Page 55 = output from RTG). The RTG board does not use the interrupt line of IIC bus interface: Table 2-10. Raster Timing Generator IIC communication Input / Output Information bits FORCE_INTERNAL TRI_LEVEL SYNC_TIP VTR_MODE Right blanking Model 200 Service Manual SOURCE_VALID ODD_FIELD 280_CLK CLAMP BLANKING RASTER H_BAND0 TIMING H_BAND1 GENERATOR H_BAND2...
  • Page 56 A low on this line indicates an operational RTG board The revision of the RTG board The number of horizontal lines associated with the current signal Data for V_COUNT Data indicating the selected sync signals High indicates interlace pattern System Controller Board Model 200 Service Manual...
  • Page 57 ConvergenceDeflection Board OUTPUT DESCRIPTION V_DRIVE Square wave negative going pulse synchronized to the selected vertical sync with pulse width of about 4 horizontal periods Model 200 Service Manual Video Processor Board 2-43...
  • Page 58 /H_ENABLE line during any of following events: A. During and about 2 seconds after the programming period of the FPGA. B. During frequency band change period. C. During the period that the phase locked loop is out of lock. 2-44 Model 200 Service Manual...

  • Page 59: Horizontal/Vertical Deflection Pcb

    The HVD board does not create any interrupt and the interrupt line is not used for this application. Table 2-10 lists the adjustments executed via the IIC bus interface (I = Input to HVD board , O = Output from HVD board): Model 200 Service Manual 2-45...
  • Page 60 Table 2-10. Horizontal/Vertical Deflection IIC Data Interface Input / Information Output bits V_RED_LIN_CONTROL V_GRN_LIN_CONTROL V_BLU_LIN_CONTROL 2-46 Description Data for adjustment of red vertical linearity Data for adjustment of green vertical linearity Data for adjustment of blue vertical linearity Model 200 Service Manual...
  • Page 61 V_RED_CENT_CONTROL V_GRN_CENT_CONTROL V_BLU_CENT_CONTROL FRONT/REAR FLOOR/CEIL /DEFL_OK HVD_MODEL Model 200 Service Manual Data for adjustment of red vertical edge linearity Data for adjustment of green vertical edge linearity Data for adjustment of blue vertical edge linearity Data for adjustment of left / right...
  • Page 62 Current feedback of red vertical amplifier V_GRN- Current feedback of green vertical amplifier V_BLU- Current feedback of blue vertical amplifier OUTPUTS DESCRIPTION H_OUT_ Horizontal output flyback pulse, about 800 VPP FLYBACK 2-48 System Controller Board Video Processor Board Scan Reversal Board Model 200 Service Manual...
  • Page 63 + 5 V supply for use by HVD and Scan Reversal Boards +15 V + 15 V supply for use by HVD and Scan Reversal Boards -15 V - 15 V supply for use by HVD and Scan Reversal Board Model 200 Service Manual System Power Supply 2-49...
  • Page 64 Horizontal/Vertical Deflection Board from operating when 1 or more yoke connectors are disconnected. /SWEEP_OK: Shuts down the video amplifiers in the event of deflection failure (if DEFL_OK or /H_ENABLE are not present). 2-50 Model 200 Service Manual...

  • Page 65: Convergence/Deflection Pcb

    The Convergence/Deflection Input/Output diagram (Figure 2-15) and the list of inputs and outputs (Tables 2-12 and 2-13) provide information for the technician to perform module level troubleshooting. Model 200 Service Manual ® assembly driver circuitry with temperature compensation ® assembly drivers...
  • Page 66 V_RAMP V_PARAB Description Data for selection of frequency of ILA bias circuit Data for selection of frequency of ILA bias circuit Data for selection of frequency of ILA bias circuit Model 200 Service Manual ILAs TO/FROM TO/FROM HVPS FROM HVDB...
  • Page 67 TP_BLU_SKEW TP_BOW TP_PIN TP_PIN_BAL Model 200 Service Manual Data for selection of frequency of ILA bias circuit Data for selection of frequency of ILA bias circuit Data for selection of frequency of ILA bias circuit Data for selection of frequency of ILA bias circuit...
  • Page 68 Status line for the lock indication of the PLL of the ILA section with high = locked PLL Convergence board status line. Low = operational C/D Board, High = Nonoperational C/D Board. Revision of C/D Board System Controller Board Model 200 Service Manual...
  • Page 69 Output of green vertical (Y) convergence amplifier Y_BLU+ Output of blue vertical (Y) convergence amplifier Horizontal/Vertical Deflection Board INPUTS DESCRIPTION WIDTH_ A DC wave form for controlling width of picture. About 4 V max. CONTROL OUTPUTS DESCRIPTION Model 200 Service Manual ILAs Scan Reversal Board 2-55...
  • Page 70 + 5 V supply for use by convergence board. +15 V + 15 V supply for use by convergence board. -15 V - 15 V supply for use by convergence board. Interlocks and protection None 2-56 Model 200 Service Manual...
  • Page 71 The SRB does not require any IIC bus interface. Table 2-14. Scanning signal states Mode of Operation Front and floor projection Front and ceiling projection Rear and floor projection Rear and ceiling Model 200 Service Manual FRONT/REAR FLOOR/CEIL line line High High...
  • Page 72 The assembly communicated with is the primary heading of each group of signals. Those signals are subdivided into inputs and outputs. Input refers to an Input to the Scan Reversal Board. Output refers to an output from the Scan Reversal Board. 2-58 Model 200 Service Manual...
  • Page 73 Horizontal current feed back, a DC signal proportional to horz. output current DEFL_OK Deflection status line high (about 2 V) = good low = no scan Convergence/Deflection Board INPUTS DESCRIPTION X_RED+ Output of horizontal red convergence amplifier X_GRN+ Output of horizontal green convergence amplifier Model 200 Service Manual 2-59...
  • Page 74 GRN_LOCK+ Interlock for green yoke. 5 V when closed or 15 V when open. GRN_LOCK- Interlock for green yoke . 5 V when closed or 0 V when open. 2-60 Red Yoke Connector Green Yoke Connector Model 200 Service Manual...
  • Page 75 Bottom of blue vertical yoke X_BLU_YOK+ Top of blue horizontal convergence yoke X_BLU_YOK- Bottom of blue horizontal convergence yoke Y_BLU_YOK+ Top of blue vertical convergence yoke Y_BLU_YOK- Bottom of blue vertical convergence yoke- Model 200 Service Manual Blue Yoke Connector 2-61...

  • Page 76: Backplane Pcb

    Refer to Figure 2-17 for a general idea of how the projector wiring is interconnected through the Backplane PCB. LVPS VIC #1 VIC #2 VIC 3# Figure 2-17. Backplane Board Interface Block Diagram. 2-62 Backplane Model 200 Service Manual ALPS HVPS HVDB Proj Lens Fans...

  • Page 77: Image Light Amplifier Technology

    ) assembly (Figure 2-18) is a device that uses low-intensity images to modulate a high-intensity light through a liquid crystal layer. It is the key component in producing very bright, high resolution images from Hughes-JVC large-screen projectors. ® Figure 2-18. The Hughes-JVC Image Light Amplifier ®...
  • Page 78 The modulated high-intensity light is reflected back out of the ® output side of the ILA assembly, through the Prism and the Projection Lens and onto the screen. (see Figure 2-19). Figure 2-19. Simplified image/optical path. 2-64 Model 200 Service Manual...
  • Page 79 Chapter 2---System Description Model 200 Service Manual 2-65...

  • Page 80: Arc Lamp Focus And Alignment

    3.11 Software Updating ... 3-14 3.12 Cleaning Lens, ILA This chapter details adjustment procedures required to maintain the Model 200. Refer to Figures 4-1 and 4-11 to locate assemblies and components. For a complete list of tools required to perform adjustments, refer to Chapter 1.
  • Page 81 Figure 3-1. Arc Lamp Focus adjustments. 8. Loosen the 4 X-axis (horizontal) alignment screws (indicated by the letter H inside the screw heads in Figure 3-1). ® Bias current value (the Green bias ® Bias so the Flat Model 200 Service Manual...
  • Page 82 4:1 to the screen corners. The darker areas in each of the corners should be balanced evenly. 15. When the Arc Lamp is focused over the entire screen area and balanced vertically and horizontally, reset the Green ILA® bias to original value. Model 200 Service Manual...

  • Page 83: Arc Lamp Current Setting

    DVM. To perform the Arc Lamp Current Setting: 1. Verify that power is off to the projector, or turn power off with the remote (it is not necessary for the circuit breaker to be off).

  • Page 84: Electronic Module Tilt-Up

    To adjust the ILA 1. Remove the rear cover (Section 4.2). 2. Tilt the Electronic Module up (Section 3.3). 3. For this procedure, view Green. Hide Red and Blue. Model 200 Service Manual ® Back Focus adjustment moves the ILA ®...
  • Page 85 CRT thumbscrew. Turning ® Assembly to separate the layers. They are tiny, ® /Relay Lens/CRT ® assembly forward or backward ® Assembly and the Model 200 Service Manual ® assembly in ®...

  • Page 86: Crt Mechanical Focus

    NOTE: Tighten set screws before focus lock screw. The focus lock screw can slightly defocus or rotate the CRT as it is being tightened if the set screws are loose. 9. Repeat the above steps for the Red and Blue CRTs. Model 200 Service Manual...

  • Page 87: Crt Rotation

    CRT/Yoke assembly and sets these values to the default levels so that CRT Rotation can be accomplished correctly. Focus Lock Screw Set Screw Guide Plate CRT Shield Model 200 Service Manual...

  • Page 88: Crt Rotation

    Skew) to the values noted previously in Step 4. 11. Recheck Bow, Pincushion, Keystone, and Skew and readjust if necessary. Also recheck Convergence (refer to the Model 200 User’s Guide). 12. Repeat the above procedure for any other CRT that is not level.

  • Page 89: Ila ® Overlap

    3 colors. With all 3 ® was replaced, the blue or red image ® overlap needs adjustment. If both red and blue ® Overlap adjustment: ® CAUTION! assemblies. Model 200 Service Manual ® ® ® assembly to be ® assembly and To avoid...

  • Page 90: Front/Rear Jumper Settings

    ILA the connector at the top. 4. If the overlap is at the top or bottom, be sure the projector is level, then slide the spring clip (Figure 4-12) at the top of the slide out with some resistance). There are two adjustment screws at the bottom of the ILA and down movement.

  • Page 91: Inverted Vertical Jumper Settings

    Scan Reversal Board and indicates the proper location for ceiling or floor projection. The Model 200 Projector is shipped in the normal vertical projection position with the jumper plug inserted into J53. For an inverted vertical setup this jumper plug must be inserted into J53A.
  • Page 92 4. Repeat Steps 2 and 3 above for Blue while hiding Red. 5. Recheck all Geometry and Convergence settings (see User’s Guide) and readjust wherever necessary. Model 200 Service Manual Vertical height pots. 3-13...

  • Page 93: Software Updating

    Refer to the System Software release bulletin for Boot Manager version dependencies. To perform software upgrade: 1. Verify that the projector circuit breaker is off. Use a Null Modem cable to connect a PC to the projector’s Serial Port A. 2. Start Windows 3.1.
  • Page 94 (where x.x.0 is the currently loaded Boot Manager version (e.g. 0.9.0 or 1.1.0). –Boot Manager Ver x.x.0 (Service Mode Startup) –Copyright (c) 1994 Hughes JVC Technology –Command: _ 11. Verify that the Boot Manager version is correct. If it is necessary to update the Boot Manager, perform the following steps.
  • Page 95 11D. The system has verified that the load module is correct The Boot software has been successfully updated. To restart the projector under control of the updated boot manager, enter the "reboot" command while depressing the service mode switch (Figure 5-1). The projector will now restart with the updated boot manager software.
  • Page 96 12C. During upload, a progress indicator updates the number 12D. At this point the system has verified that the load module The software update is complete. To restart the projector, type in the “reboot” command and press Enter. The projector will now restart with the updated System Software.
  • Page 97 Mirrors and Polarizing Beam Splitter Windows: The Optical Shield covers the Dichroic Mirror Assembly (X-Frame) and Polarizing Beam Splitter windows. Normal cleaning is not required. Clean only if absolutely necessary using compressed air. Do not wipe mirrors. 3-18 Model 200 Service Manual...
  • Page 98 Safety Chapter at the front of this manual. Removal and replacement procedures in this chapter must be performed by Hughes- JVC certified technicians and engineers only. • Tools required to perform removal and replacement of projector components and subassemblies are listed in Chapter 1, Introduction.
  • Page 99 Ensure that the circuit breaker on the rear panel of the projector is turned off and the AC power plug is removed from the AC outlet PRIOR to attempting any of these procedures.
  • Page 100 Video Amplifier PCB. Tilt Card Cage up for access. Metal Framed Air Filter behind Grille. Figure 4-1. Major components of the Model 200 Projector. Model 200 Service Manual Optical Shield Shutter Motors Rollbar Prism Assembly Card Cage Holding Pin...

  • Page 101: Projector Covers

    Place the ends of the Latch Levers into the holding slots. CAUTION! Immediately after removing the front or rear cover, pull up the power interlock switch. This allows power to be reapplied to the fans to cool the Arc Lamp. Model 200 Service Manual...

  • Page 102: Air Filters

    Remove the filters and vacuum them or blow them clean with compressed air. They may also be washed with soap and water. There are 4 polyurethane air filters in the Model 200 that require periodic cleaning. They are located as follows: •...
  • Page 103 Before proceeding with the removal of any subassemblies below, verify that the circuit breaker at the rear of the projector is turned off and the power plug is removed from the AC outlet. To remove the Arc Lamp from the Lamphouse Dock: Figure 4-3 Arc Lamp cover.
  • Page 104 Figure 4-4. Lamphouse Dock and Arc Lamp with cover off. To remove the Lamphouse Dock (Ignitor and Laser PS): Model 200 Service Manual 7. When reinstalling the Arc Lamp, be sure that the Safety Shutter tab on the left side (Figure 4-4) engages the left side of the housing so that the Arc Lamp cooling door opens when the Arc Lamp is installed.

  • Page 105: Arc Lamp Power Supply

    5. Remove the 2 screws on the bottom side of the LVPS and carefully slide it out of the projector. 6. Reinstall the LVPS in reverse order. After the LVPS is installed, recheck Timing, Geometry, Electronic Focus, ® Bias/Sensitivity, Convergence, G2, and Shading. Model 200 Service Manual...
  • Page 106 Figure 4-5. Figure 4-6 High Voltage Power Supply. Model 200 Service Manual 1. Remove the front and rear covers (Section 4.2). 2. Remove the High Voltage Power Supply cover (Figure 4-5) by removing the 2 pozidrive screws that secure the HVPS at the top of the cover and loosening the 1 pozidrive screw at the bottom of the front flap (Do not remove this bottom screw-it is difficult to reinstall.

  • Page 107: Raster Timing, System Controller, Video Processor Pcbs

    15. Reinstall the HVPS in the reverse order from above. When reinstalling, be sure that the HVPS slides over the bottom screws and the lip at the top of the projector frame. Make sure each anode cable “snaps” back into its receptacle.

  • Page 108: Convergence/Deflection Pcb

    The Convergence/Deflection PCB is located on the bottom side of the Electronic Module card cage. To remove the Convergence/Deflection PCB: Model 200 Service Manual 1. Turn off power at the remote control and at the circuit breaker on the projector rear panel.

  • Page 109: Horizontal/Vertical Deflection Pcb

    Carefully fit the board over the mounting screws and slide the board into position. Tighten the screws and reconnect the connectors. 1. Remove the rear cover (Section 4.2). Model 200 Service Manual...

  • Page 110: Video Input Cards (Vics)

    5. Reinstall the HV Deflection PCB by lowering the side that is nearest to the rear of the projector in first until it clears the electronic module edge, then lowering the other side. Carefully fit the board over the mounting screws and slide the board into position.

  • Page 111: Video Amplifier Pcb

    CRT/Yoke Assembly to the CRT Socket Connector. This is because the Green CRT Socket Connector is close to the rear of the projector and is easier to disconnect from the CRT after the CRT/Yoke Assembly is loose and is moved away from the rear of the projector.
  • Page 112 Figure 4-9. Video Amplifier PCB showing breakaway CRT Socket Connectors. Model 200 Service Manual 7. Place the Green CRT Assembly in a safe location on or against one of the other CRT Assemblies. 8. Disconnect the Red and Blue CRT Socket Connectors and gently lay them on the top of the Video Amplifier Board.

  • Page 113: Scan Reversal Pcb

    3. Move all cables out of the way. 4. Remove the 4 pozidrive screws (Figure 4-10) and lift the board out. 5. Reinstall in the reverse order from above. Warning!!! The CRT/Yoke Assemblies should Model 200 Service Manual...
  • Page 114 Air Filter on bottom. Red ILA Green ILA Model 200 Service Manual Chapter 4---Maintenance (Removal/Replacement) Three CRT/Yoke Assemblies are located in the CRT Assembly area below the card cage. To remove a CRT/Yoke Assembly (refer to Figure 4-11):...

  • Page 115: Ila ® Assembly

    CRT to the socket connector. This is because the Green socket connector is close to the rear of the projector and is easier to disconnect from the CRT after the CRT/Yoke Assembly is loose and is moved away from the rear.

  • Page 116: Relay Lens

    Figure 4-12. ILA visible after the ILA 4.16 Relay Lens To remove a Relay Lens (refer to Figure 4-11): Model 200 Service Manual ® Assembly top view. The overlap screws shown are ® assembly is removed. 4. Loosen the two wingnuts at the top of the appropriate ®...

  • Page 117: Projection Lens

    To remove the Projection Lens: Figure 4-13. Projection Lens locking screw and removal notch. WARNING!!! lens can fall out if the projector is pointed downward. 4-20 5. Loosen the wing nut on top of the Relay Lens mount (the bracket at the rear of the Relay Lens).

  • Page 118: Prism Assembly

    HJT does not recommend performing this replacement in the field. Optical alignment is critical and requires projector power to be on. This results in an additional safety hazard due to the high intensity light beam emanating from the optical area with the optical cover off.
  • Page 119 Chapter 4---Maintenance (Removal/Replacement) Figure 4-14. Dichroic Mirror Assembly. 8. Remove the 2 hex bolts from the front of the Prism assembly (see Figure 4-15). Figure 4-15. Prism Assembly mount. 4-22 Model 200 Service Manual...
  • Page 120 Model 200 Service Manual 9. Remove the Rollbar assembly (2 pozidrive bolts/nuts on left side and two nuts on right side). Disconnect and label the 2 connectors on the hinge assembly for the shutter motors (1 in front and 1 in rear). Remove and label the jumper that connects the front interlock switch to the rear interlock switch.
  • Page 121 Chapter 4---Maintenance (Removal/Replacement) 4-24 Model 200 Service Manual...

  • Page 122: Scan Reversal Board

    Generator, the Video Processor Board, the Scan Reversal Board, the Convergence/Deflection Board, the Video Amplifier Board, the Low Voltage Power Supply, and the High Voltage Power Supply. Figure 5-1. Projector rear with cover and rear panel off. Model 200 Service Manual...
  • Page 123 Chapter 5---Troubleshooting Figure 5-2. Left side of projector with rear cover off. Figure 5-3. Right Side of projector with rear cover off. Model 200 Service Manual...

  • Page 124: Error Codes

    Figure 5-4. Convergence/Deflection and Video Amplifier LEDs. 5.2 Error Codes For certain errors that may occur in the Model 200 Projector the software provides error codes that are helpful in determining the nature of the problem. These error codes are visible on the left side of the monitor screen when using a PC connected to Port A or Port B.
  • Page 125 The error codes listed in Table 5-2 describe problems associated with software (Version 0.9.8) and hardware while the projector is operating. The first column of the table lists the error number code that appears on the PC screen. The second column describes the on-screen text. The third column provides a description of the problem and any other pertinent information.

  • Page 126: Error Codes

    No Header found in data stream - possible baud rate error. Expected data characters to be repeated - failed. Data not in Extron or JVC Switcher format. Ansi Output to RS232 port was interrupted - incomplete. User has selected a Channel - VIC is not present.

  • Page 127: Troubleshooting Guide

    Hughes-JVC. 5.3. Troubleshooting Guide Table 5-2 shows some common projector problems, what to check when problems occur, possible solutions and the section in this Service Manual (If User’s Guide contains pertinent information, the appropriate section will be given) that provides some related information on the problem.
  • Page 128 Horizontal size is different between colors. Vertical size is different between colors. Table 5-3. Troubleshooting Guide (continued) Model 200 Service Manual CHECK POSSIBLE SOLUTION Arc Lamp may have too many hours of usage. Replace Arc Lamp. Perform the Projection Lens Focus procedure.
  • Page 129 4.16, 4.13 assembly User’s Guide 5.11.2 User’s Guide 5.10.2, 5.9.1, 5.11.1. ® User’s Guide 5.7, 5.10 bias and User’s Guide 5.9.2 User’s Guide 5.9.2 User’s Guide 5.9.2 3.12 4.15. ® 4.16. 4.15, 4.16 User’s Guide 5.11.2, 5.11.1 Model 200 Service Manual...
  • Page 130 Projector accidentally pressed. "hung up" This could cause an erroneous XOFF command and requires an XON command to override it. Model 200 Service Manual CHECK POSSIBLE SOLUTION Replace Video Processor Board. Replace Raster Timing Generator. Level the projector or rotate the CRT Yoke.
  • Page 131 Chapter 5---Troubleshooting 5-10 Model 200 Service Manual...
  • Page 132 Model 200 Configuration Data Export / Import Procedure This appendix defines the steps to perform a Configuration Data Export & Import from the Model 200 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.
  • Page 133 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 ...
  • Page 134 Import will alter all projector setup data. Prior to starting, several warnings are displayed to prevent unintentional loss of setup data. Model 200 Menu: 7. System + 5. Maintenance + 6. Import ================================= WARNING Importing New Configuration ALL SETUP DATA WILL BE CHANGED! <ENTER>...
  • Page 135 Windows TERMINAL: FIRST press STOP to end the Host Upload transfer. 9.2. Model 200 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.

  • Page 136: Glossary Of Terms

    Field Frame Model 200 Service Manual Without definite form; not crystallized. The xenon arc lamp in the Model 200 projector. It operates at high temperatures (160° to 200°) and produces dangerously intensive light with hazardous levels of ultraviolet and infrared radiation.
  • Page 137 Provides boost voltage through a spark gap to the Ignitor. 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. Model 200 Service Manual...
  • Page 138 Retrace RGB (Red, Green, Blue) Rollbar Assembly S-VHS S-Video Model 200 Service Manual Abbreviated as "Y." The portion of the signal that contains the black and white information, which affects brightness. An undesirable electrical interference of a signal. Displaying less than the complete area of an image to a viewer (i.e., scanning beyond the...
  • Page 139 Reverses the image vertically for use with ceiling displays or mirror-bounced displays. Located on the Scan Reversal Board. The number of times per second a frame is transmitted to a video display screen. See Arc Lamp. Model 200 Service Manual...
  • Page 140 Glossary Model 200 Service Manual...

This manual is also suitable for:

200

Table of Contents