NEC AccuSync LCD51VM Series Service Manual page 80

6) When the screen as shown below appears, check to [EDID_READ] and press the [OK] button.
7) When the screen as shown below appears, confirm that the correct data are displayed in the columns of
EDID DATA CONTENTS and Serial information.
If all the displayed data are [FF] or the like, or if the serial number is different from that of the
corresponding unit, then EDID data writing should be carried out.
8) When a screen of Item 6 is displayed by pressing the [BACK] button, give a check to [EDID_WRITE] and
press the [OK] button.
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