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...

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...

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...