Hughes Model 230 Projector Service Manual
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Chapter 5---Troubleshooting Model 230 Service Manual5-1 5.0 Troubleshooting Contents 5.1 Status LEDs .............................................................................................5-1 5.2 Error Codes..............................................................................................5-4 5.3 Troubleshooting Guide .............................................................................5-7 5.1 Status LEDs The illustrations below indicate where various LEDs are located...
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Chapter 5---Troubleshooting 5-2Model 230 Service Manual Figure 5-2. Left side of projector with rear cover off. Figure 5-3. Right Side of projector with rear cover off.
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Chapter 5---Troubleshooting Model 230 Service Manual5-3 Figure 5-4. Convergence/Deflection and Video Amplifier LEDs.
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Chapter 5---Troubleshooting 5-4Model 230 Service Manual 5.2 Error Codes For certain errors that may occur in the Model 230 Projector the software provides error codes that are helpful in determining the nature of the problem. These error codes can be seen on the left side of the monitor screen when using a PC connected to Port A or Port B. Table 5-1. Error Categories: Category NumberError category Description 1 CEXEC Operating System. 2 FLASH HW Flash Memory HW driver. 3 IIC HANDLER IIC Handler for...
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Chapter 5---Troubleshooting Model 230 Service Manual5-5 Error NumberOn-screen textDescription on Read. 1.34 “No mem available” Software error-no heap available for memory allocation. 2.1 “Invalid Sector” Software error-invalid Flash sector number. 2.2 “Write Timeout” Flash Memory Write Failure. 2.3 “Erase Timeout” Flash Memory Erase Sector Failure. 2.4 “Verify Error” Flash Memory Write Verify Failure. NOTE: Category 3 error codes may occur when power is interrupted by opening the cover interlock switches...
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Chapter 5---Troubleshooting 5-6Model 230 Service Manual Error NumberOn-screen textDescription not Low for 3 seconds out of 20 seconds.) 4.15 “Low Voltage PS” Low Voltage PS failed (/LV_OK_B is High). 4.16 “High Voltage PS” High Voltage PS failed (/HV_OK_B is High). 4.17 “VIC1 Board Not OK” /VIC_OK is High (BAD) on VIC Slot 1. 4.18 “VIC 2 Board Not Ok” /VIC_OK is High (BAD) on VIC Slot 2 4.19 “VIC3 Board Not OK” /VIC_OK is High (BAD) on VIC Slot 3 4.20 “VIC1 Invalid Type” Software does not support VIC_ID...
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Chapter 5---Troubleshooting Model 230 Service Manual5-7 Error NumberOn-screen textDescription swapped a VIC into an incorrect slot. 8.3 “Interpol Blocked” Software process error - Interpolation Process not allowed to run by higher priority processes. 9.1 “Quad Dec Not Init” HW: Quad Decoder failed Startup Sequence. 10.1 “Shutter Stat BAD” One or more shutters reading wrong status. One other error may appear on the monitor screen with the statement “Assertion Failed” (only if the PC is connected to Port...
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Chapter 5---Troubleshooting 5-8Model 230 Service Manual Problem Check Possible solution Section HIDE command invoked?Unhide image with the HIDE key on the remote. One color is missing. Turn on the missing color with the HIDE key. No image or raster on one CRT.Replace defective CRT or Video Amplifier Board.4.15, 4.13 Arc LampArc Lamp will not light. Clicking noise is heard when projector is turned on.Replace worn out Arc Lamp.4.4 Clicking noise not audible when projector is turned on.LVPS, ALPS, or...
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Chapter 5---Troubleshooting Model 230 Service Manual5-9 Problem Check Possible solution Section 5.4.4. Retrace lines on raster. Adjust TOP Blanking. User’s Guide 5.4.3. Image not squared. Check Geometry and readjust if necessary.User’s Guide 5.5.3, through 5.5.10. Image bowed at left/right edge or top/bottom.Check Bow, Pincushion Balance, and Pincushion adjustments.User’s Guide 5.5.3, 5.5.4, 5.5.10. Picture Linearity. Readjust Horizontal, Vertical, or Edge Linearity.User’s Guide 5.5.7, 5.5.8. XY...
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Chapter 5---Troubleshooting 5-10Model 230 Service Manual Problem Check Possible solution Section limited to corners or edge.5.10 Grey scale is Green in bright areas.Subtract Green Sensitivity Offset and add Red and Blue.User’s Guide 5.9.2 Grey scale is Red in bright areas.Subtract Red Sensitivity Offset and add Green and Blue.User’s Guide 5.9.2 Grey scale is Blue in bright areas.Subtract Blue Sensitivity Offset and add Green and Red.User’s Guide 5.9.2 Picture-Various ProblemsOut of focus, blurry area on...