H76
4-6
4-5
Inspection Procedure
RESET :
Please press Menu button on the projector panel to enter Factory Reset Function then choose
YES and press Enter to see if it works. This action will allow you to erase all end-users settings
and restore the original factory setting.
Hi-Pot and Grounding Test :
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Hi-Pot Specification : 1.5kVAC, 10mA, 2 seconds.
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Grounding Specification : 12VDC, 25A, 0.1 ohm.
Clock and Clock Phase :
Test Signal : 1024*768 @ 85Hz
Test Pattern : Line Moire Pattern
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Check and see if image sharpness and focus is well performed.
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If not, readjust by following steps.
1.)Enter Digital Conversion menu and select Clock Function to adjust the total pixel
number of pixel clock in one line period.
2.)Then select Clock Phase Function and use right or left arrow key to adjust the value to
minimize video flicker.
R, G, B and White Colors Contrast :
Test Signal : 1024*768 @ 85Hz
Test Pattern : 64 or 16 R, G, B and White colors Intensities Pattern
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Please check and see if each colors is normal and distinguishable.
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If not, please return the unit to repair area.
Screen Uniformity and Flicker :
Test Signal : 1024*768 @ 85Hz
Test Pattern : Full White Pattern
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Please check and see if its in normal condition.
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If not, please return the unit to repair area.
