310 Cleaning Lenses Crt Ila Assemblies and Mirrors

The projection lens is the only item that requires periodic cleaning. Other assemblies are covered to prevent dust entering or finger smudging. Cleaning may be needed for special circumstances such as replacing an assembly. Cleaning should only require removing excessive dust (use canned air such as Office Duster or Aero Duster) or removing fingerprint smudges (use Kodak Lens paper, or equivalent) from the projection lens. As much as possible, clean the optics only when absolutely necessary....

32 Arc Lamp Adjustment

Arc Lamp adjustment must be performed whenever an Arc Lamp is replaced and may be needed if the projector is heavily jarred during shipment. The Arc Lamp Adjustment consists of 2 separate adjustment procedures Arc Lamp Current adjustment and Arc Lamp Alignment. The Arc Lamp Current Adjustment must be performed whenever the Arc Lamp Power Supply is replaced. 1. Apply power to the projector and allow it to operate for a minimum of 15 minutes. 2. Measure the voltage across the Arc Lamp Power...

33 ILA Back Focus

The ILA Back Focus adjustment moves the CRT ILA assemblies together to adjust the focal length so that the image will be focused on the screen. When using a zoom lens this adjustment allows the zoom lens' tracking to remain focused throughout the entire range. Use the Pluge Grey test pattern to perform this adjustment one color at a time. The procedures below perform the ILA Back Focus for the Green lens. The first procedure is for a zoom lens. The second procedure is for a fixed lens. To...

35 I LA Overlap

This adjustment positions the ILA assemblies in their sockets so that the Red, Green and Blue images will be aligned on the screen. Adjustment should only be made once or whenever an ILA is replaced. To determine if this adjustment is necessary 1. Note the value of the ILA bias for red, green and blue so they can be returned to these levels when this procedure is complete. 2. Hide all three channels (make sure the shutter mode is off). 3. Increase the ILA biases to maximum for all 3 colors....

36 Front Rear or Inverted Projection Jumper Settings

NOTE In the procedures below each of the jumpers mentioned have a specific purpose CN702 and CN701 are for the horizontal scanning jumper, CN713 and CN714 are for the vertical scanning jumper, and CN708 and CN707 are for the convergence jumper. Front Rear Jumper Setting (Horizontal Scan Reverse) The Horizontal Scan Reversal Jumper reverses the image projection for front or rear projection. Figure 3-13 illustrates the jumpers' location on the Vertical Convergence Deflection PCB. NOTE When the...

37 Horizontal Size Settings

The Horizontal Adjustment Coils are located on the front of the Horizontal Deflection PCB. These coils are used to make coarse adjustments for horizontal size. Adjust the horizontal size coils when replacing the Horizontal Deflection PCB, or CRT Assembly. These adjustments may also be needed when the convergence adjustment procedures fail to bring the colors into convergence. To adjust the horizontal size coils (see Figure 3-11) 1. Remove the Electronics Module cover. 2. Apply power to the...

38 Software Updating

The Model 100 software resides in Flash Memory and is updated via the projector's serial Port A. To perform an update, a disk containing the updated Boot Software (boot.hex) and or System Software (zsys.hex) and a PC with Windows 3.1 (Windows 95 98 with Procomm Plus fax modem software) is required to perform update. Boot Manager Software and System Software are separate files. Each may be updated independently. The System Software will depend on a specific version of the Boot Manager. Refer to...

410 Video Processor PCB

The Video Processor, VIC PCB is located below all the other circuit boards and can be identified by the Video Input BNC connectors on it (see Figure 4-10). All internal electrical connections to the Video Processor PCB are routed through the backplane board. There are only the external Video Input cables to remove. 1. Disconnect the Video Input cables. 2. Remove the right side cover (optional). 3. Use a small, flat-blade screwdriver to remove the retaining screws 4. Grasp the D-handle and pull...

412Vertical Convergence Deflection PCB

The Vertical Convergence Deflection PCB is located just above the Deflection To remove the Vertical Convergence Deflection PCB 1. Remove the right side cover. 2. Remove the panel covering the top three circuit boards. 3. Pull the PCB out about 2 inches in order to get access to the plugs and jacks. 4. Remove the Horizontal Scan Reversal Jumper cable from either (CN702 or CN701). This the cable that runs from the Horizontal Deflection PCB to the Vertical Convergence Deflection PCB (see Figure...

413 Horizontal Deflection PCB

The Horizontal Deflection PCB is the smaller PCB on the top level of the Electronic Module card cage (see Figure 4-10). To remove the Horizontal Deflection PCB 1. Remove the right side cover (Section 4.2). 2. Remove the panel covering the top three circuit boards. 3. Remove the Horizontal Scan Reversal Jumper from either (CN702) on the Vertical Convergence Deflection PCB. 4. Loosen the Phillips-head screw on the slide in front of the Horizontal PCB and push the slide up. 5. Grab the PCB by the...

415Regulator PCB

The Regulator PCB is located next to the Green Video Amplifier PCB. These two circuit boards appear to be just one board. They sit just above the LVPS. 2. Remove the G2 Input (CN201) from connector CN5 (on HVPS). 3. Remove the three G2 Output cables from connectors CN202 (to the blue Video Amplifier), CN203 (to the red Video Amplifier), and CN204 (to the green Video Amplifier). 4. Remove the P10REG cables from connector CN205 and connector CN206. 5. Remove the white standoff retainer from in...

416 Video Amplifier PCB

On the Model 100, there are three Video Amplifier PCBs, one for each of the 3 CRTs. Each VA PCB is located directly under its respective CRT. 1. To remove any of the Video Amplifier PCBs it will make the job easier to remove all the covers from the projector (Section 4.2). To remove the Video Amplifier for the green CRT, remove the Regulator PCB first (Section 4.15). 2. Disconnect the Video Input cable from connector CN101. 3. Disconnect the G2 Output connector fron connector CN107. 4....

417 Crt Ila Assembly

In the Model 100 the CRT and ILA are removed from the projector and replaced as one part. NOTE The CRTand ILA should be treated as one unit. The CRT has a fiber optic on its output.The ILA also has a fiber optic on its input. These fiber optics are separated by a thin film of optical fluid. Disassembly of the CRT ILA Assembly should not be attempted except by Hughes-JVC trained technicians in a clean room environment. WARNING The CRT ILA Assemblies should be handled with extreme caution. If...

42 Projector Covers

Prior to removing any of the four covers, review the chapter on Safety and adhere to all warnings and cautions. Figure 4-2 Front Cover Interlock Switch. Figure 4-2 Front Cover Interlock Switch. To remove the front, top or side covers 1. Disconnect the projector power plug. 2. The two side covers can be removed independently of any other cover. They are removed by unscrewing six Phillips-head screws. There are two small cables connecting the side covers to the top cover. The purpose of these...

43 Air Filters

There are 2 air filters in the Model 100. They should be checked and cleaned whenever necessary. Both filters can be easily removed for periodic cleaning by sliding the filter element out of it's tray. In extremely dusty or dirty conditions, the filters should be cleaned more frequently. To clean the filters, remove, vacuum out or blow the filters with compressed air. One filter is a foam filter located in the rear of the projector. The other filter is located on the on the bottom left side of...

45 Ignitor Assembly

The Igniter Assembly consists of the Igniter and the Laser Power Supply. When either of these two components require replacing, the Ignitor Assembly is returned and replaced as a unit. The Igniter sits directly underneath the Arc Lamp Module. 1. Remove the front cover (see Section 4.2). 2. Disconnect the Arc Lamp ouput cables from the ALPS (see Figure 4-7). 3. Disconnect and label the cables attached to the Ignitor (see Figure 4-6). 4. Remove the 3 screws securing the Ignitor Assembly (see...

46 Arc Lamp Power Supply

To remove the Arc Lamp Power Supply (ALPS) 1. Remove the front cover (see Section 4.2). CAUTION It is strongly recommended that the Arc Lamp current be turned down (see Section 3.1) before installing a new Arc Lamp to help prevent possible damage that could reduce the life of the new lamp. 2. Disconnect the control cable (P11) from (J72) and remove the cable from the cable ties. 3. Disconnect the ALPS Ouput cables from the (+) and (-) terminals on (J74). Figure 4-7 Arc Lamp Power Supply...

47 Low Voltage Power Supply

To remove the Low Voltage Power Supply (LVPS) 2. Remove the High Voltage Power Supply (see Section 4.8). 3. Remove the 2 Phillips-head screws from the base of the LVPS. 5. Reach behind the LVPS and disconnect the A C cable (P79 from (J75). Also disconnect the control cable (P07) from (J76). 6. Reinstall the LVPS in reverse order. After the LVPS is installed, recheck Timing, Geometry, Electronic Focus, ILA Bias Sensitivity, Convergence, G2, and Shading. Figure 4-8 Low Voltage Power Supply....

48 High Voltage Power Supply

To remove the High Voltage Power Supply (HVPS) 1. Remove all the covers (see Section 4.2). 2. Disconnect the 3 CRT Anode leads(unscrew black connector). Figure 4-9 High Voltage Power Supply. Figure 4-9 High Voltage Power Supply. 3. Disconnect the 3 grey CRT focus leads. 4. Disconnect the G2 supply cable from (CN5) on the HVPS. 5. Remove the 2 Phillips-head screws from the base of the HVPS. 6. Carefully slide the HVPS slowly out. 7. Unplug the I O cable (CN1) in the rear of the power supply. 8....

49 System Controller Raster Timing Generator PCB

NOTE It is strongly recommended to download (Export) setup data to a Laptop or PC prior to replacing the SC RTG PCB, to retain data otherwise all the setup data will stay will the old SC RTG PCB (see Appendix A Import Export). When replacing any printed circuit boards (PCB), always Turn the projector off and allow to cool off for 5 minutes. Verify that the power is off at the circuit breaker and the power plug is disconnected. Verify there are no bent pins on any connectors before installing...

Backplane PCB

The Backplane PCB is the interface that connects the Power Supplies, VICs, PCBs, and other components together, either through a direct connection to a connector on the Backplane or through cables to connectors on the Backplane PCB. Signals are not modified in any way by the Backplane. It serves only as an interconnecting point. Refer to Figure 2-20 for a general idea of how the projector wiring is interconnected through the Backplane PCB. Figure 2-20 Backplane Board Interface Block Diagram....

Caution Cradle the Front Lens with one hand while removing the last 2 bolts so that it does not fall and get damaged or

Replace the Projection Lens in reverse order. 6. When changing from a Zoom Lens to a 1 1 Wide Angle Lens the installation is the same as the removal as stated above. When changing from a Zoom or 1 1 Wide Angle to a 1.5 1 (with offset), or vice versa, the Lens Support Bracket must be changed. The appropriate Lens Support Bracket will come with the Projection Lens. 7. Remove the Lens Support Bracket by removing the 4 hex-head mounting bolts (4mm). NOTE To remove one of the bottom mounting bolts,...

Electrical Safeguards

The front cover contains a safety interlock. Defeat restricted to certified service personnel 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. 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. Main power supply posts. Arc...

Front Projection Lens

The Front Projection Lens picks up the high intensity image from the 2P Combining Prism and transmits it to the projector screen. The Front Lens options are Zoom Lens with a 3 1 to 8 1 range 1.5 1 Fixed Range Lens with a variable offset that can be set to 50 of screen height above or below the centerline of the screen WARNING The Xenon Arc Lamp produces high intensity white, ultraviolet and infrared light capable of severe eye injury. Never look directly at or touch the Xenon Arc Lamp. Service...

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). CAUTION Do not unplug the power cord until after the arc lamp fan has stopped...

High Voltage Power Supply HVPS

The High Voltage Power Supply (HVPS) is located in front of the LVPS on the left side of projector (as viewed from rear). This supply provides the anode, focus, and screen voltages required for the three CRTs in the Model 100 projector. The following functions are provided by HVPS Phase locked loop circuit for synchronization to the horizontal sync Generation of anode voltages (15kV) for all three CRTs (RGB) Generation of G3 focus voltage (3.5 to 4.5kV) for all three CRTs (RGB) Generation of...

Model 100 Projector

Phone (760) 929-5300 Fax (760) 929-5410 2310 Camino Vida Roble Carlsbad, Ca 92009 USA Hughes-JVC declares that this product conforms to the following Product Specifications (Directive Standard) 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...

Nwarning When performing procedures in this chapter

Review the chapter on Safety at the beginning of this manual. ' + WARNING When performing procedures in this chap that require projector covers to be off, wear high voltage gloves (ANSI ASTM 10,000 volt rated) when working near the CRTs, Arc Lamp, or power supplies. Wear safety goggles (rated X5) when working anywhere near the light path from the arc lamp or the projection lens. CAUTION If the projector is to be powered on with the front cover removed, pull out the power interlock switch. This...

Regulator for three CRTs

The Regulator PCB is located just behind the Green and Blue CRTs and sits next to the Green Video Amplifier PCB. The Regulator performs the following functions Regulates the G2 supply from the HVPS and distributes the regulated Voltage (+900V) to each of the three Video Amplifier PCBs Regulates the Gi supply from the HVPS and distributes the regulated Voltage (-75V) to each of the three Video Amplifier PCBs Monitors the status of the Video Amplifier PCBs (VA_OK_1,2,3) Monitors the status of the...

Remove the power plug from the AC outlet

To remove the Arc Lamp Docking Module Arc Lamp Horizontal Adjustment screw 1. Remove the front cover (see Section 4.2). 2. Disconnect Heat Sensor cable. 3. Remove the 2 Phillips-head screws from the light shield on the left side of the Arc Lamp Module and carefully remove shield. The top screw can just be loosened. Figure 4-4 Arc Lamp Module with air duct and light shield. Disconnect the Arc Lamp cooling fan cable. Loosen the screw on the bottom of the Arc Lamp cooling duct and remove the top...

Ultra Violet and Infrared Light

Protect eyes and face from ultra violet light and infrared light by using the following protective eyewear 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.

Ventilation and Foreign Object Retrieval

CAUTION Ensure the 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 4.4). 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...

Vertical Convergence Deflection PCB

The Vertical Convergence Deflection PCB is the middle circuit board, above the Deflection Processor PCB and below the shorter Horizontal Deflection PCB, in the Electronics Module card cage (see Figure 4-10). The Vertical Convergence Deflection PCB I O diagram (see Figure 2-15) and the list of inputs and outputs (see Table 2-10) provide information for the technician to perform module level troubleshooting. The following functions are provided by the Vertical Convergence Deflection PCB...

Video Amplifier PCBs

There are three separate Video Amplifier PCBs, one each for the Red, Green, and Blue Channels. The Video Amplifier PCBs (VA PCBs) are located under the necks of each of the three CRTs. The outputs from these video amplifiers connect directly to the CRTs and provide all electrical connections to the CRTs except for the anode voltages. The following functions are provided by VA PCB Amplification of video signals and driving the cathode of all three CRTs Sensing the cathode beam current for all...

Video Processor PCB

The Video Processor PCB (VP PCB) is the bottom-most card (see Figure 4-10) in the card cage. It is connected directly to the Backplane board through 2 connectors. When an external signal is being received, the VP-PCB provides Horizontal Sync, Vertical Sync, and Green Sync signals to the System Controller Raster Timing Generator (SC RTG) Printed Circuit Board (PCB). It also provides three primary color signals, and G2 Control, and DC RESTORE signals to the Video Amplifier PCBs (VA PCBs). The...

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 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...

Axis Adjustmen t

Figure 3-5 Arc Lamp X and Y-Axis adjustment screws. 14. With the center-screen brightness maximized, measure the light output at the center of the screen and each corner with the light meter to determine the screen rolloff. Screen rolloff is the gradual decrease in brightness from the screen center to the screen corners, expressed as a ratio i.e. 3 1. 15. Divide each corner brightness into the center-screen brightness. The screen rolloff should be less than 3 1 from center to corners. Each...

Horizontal Deflection PCB

The Horizontal Deflection PCB is the smaller circuit on the top of the Electronics Module card cage (see Figure 4-10). This board drives the convergence coils of the projectors. The following functions are provided by Horizontal Deflection PCB Power failure detection for the +15V, -15V, and +60V Switching for the three different Flyback modes Processing the Horizontal Frequency to provide the Horizontal Gate Drive circuitry for timing control of the Horizontal Deflection Coil Horizontal Drive...

Deflection Processor PCB

The Deflection Processor PCB is the circuit board directly above the System Controller Raster Timing Generator in the Electronics Module card cage (see figure 4-10). The following functions are performed by or controlled by the Deflection PCB Controls the ILA Bias and Frequency Combines Focus and Dynamic Focus signals to one signal (Focus_sig) for both the horizontal and vertical for each color Horizontal and Vertical Linearity Horizontal and Vertical Edge Linearity Red and Blue Horizontal Size...

The Illumination Path

The illumination path is a very complex optical system of condensing lenses and integrator lenses, reflective steering mirrors and Dichroic Filters, polarizing optics, beamsplitters and combining prisms (see Figure 2-1 for physical layout). The illumination path actually consists of two sections the light path and the image path. The light path begins with a light source, the Arc Lamp, then passes through Primary Condensing Lens and is reflected off the 1IR Filter Cold Mirror where the infrared...

53 Troubleshooting Guide

Table 5-3 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. Table 5-3 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...

39 Graphic Enhancement Adjustment

The optional Graphic Enhancer RGBHV VIC has a very small adjustable pot (see Figure 3-14) that was designed primarily to improve the visibility of computer black text on white background (such as spreadsheets). This pot is factory-set at mid-range to provide an appreciable enhancement of small black text on white background. HJT recommends this pot be left at the factory mid-range setting. If it is absolutely necessary to adjust this pot to optimize a specific type of graphic image, be sure to...

52 Error Codes

For certain errors that may occur in the Model 100 Projector the software provides error codes that are helpful in determining the nature of the problem. Note Use a computer terminal connected to Port A or Port B for troubleshooting because most error codes and messages will be displayed only on a terminal screen. These error codes can be seen on the left side of the screen. Operating System. Usually System Controller failure or LVLPS voltage level. Flash Memory HW driver.Flash memory component...

Power Supplies

The Model 100 includes three power supply assemblies. Provides all of the analog, digital, and voltages needed by the projector. Provides standby power when the projector is OFF. Provides power for all cooling fans. Operation The main power is filtered via the input filter to prevent radiation from escaping back to the power line. From the line filter, AC power is fed into the Low Voltage Power Supply module where AC is rectified, filtered, and compensated for power factor correction. The +5.1V...

Video Input Cards VIC

There is only one optional video input card slot on the Model 100. It is located immediately to the right of the Video Processor PCB on the right side of the projector. There are five Optional Video Input Cards that can be used with the Model 100 Projector. RGBHV Wide-Band VIC used as a second input card. Four-Input RGB MUX VIC used in a similar manner as a switcher. HDTV VIC used for High Definition Television. Quad Standard Decoder Line Doubler VIC used for NTSC, PAL SECAM and other composite...

System Controller Raster Timing Generator PCB

The System Controller Raster Timing Generator SC RTG is located in the electronic card cage see Figure 4-1 . The Electronics System is controlled by the SC RTG PCB. The SC RTG PCB uses digital and analog circuits to direct the operation of image and raster generation circuits and to control the input output of power supply operation. The SC RTG can be viewed in two sections the System Controller section and the Raster Timing Generator section The System Controller section sets the operating...