802BT/802R Video Test Generator User Guide 609
A bitmap of a single character block is shown here. The BLU_EM image is shown below.
Test Focus
Purpose This pattern is specified by some display manufacturers for checking and adjusting focus
one color at a time.
BLU_EM+, GRN_EM+, RED_EM+, WHT_EM+, MEMEPlus, MEPlus_B,
MEPlus_G, and MEPlus_R
Description In the primary version, the screen is filled with blue (BLU and B), green (GRN and G), red
(R), or white (WHT and Sony) EM character blocks on a black background. Only the white
character has a secondary version. It is drawn with black characters on a white
background.
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