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Technician
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IR 3300 panel screen doesn't display( green light shown)
i have a machine that the display screen doesn't light on when turns on the machine. but the machine mechanism functions, including the green light at the panel. i tried changed main controller board( with sdram, flash dimm) and a dc controller board from other machine but still doesn't work. when i change it back to the machine that used to functions properly, it's display screen also doesn't light up. why??????????????????????????????????????????????? ??????? weird case.
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It sounds like corrupt system software, bad HDD or RAM. Try reseating the RAM and Boot ROM and reinstall system software before replacing any parts.
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Technician
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If it makes copies - check the LCD and/or the inverter board.
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