Quantum Data 802BT - Manual (Page 620)

610 Appendix B Image Reference
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 one or more display manufacturers for checking and adjusting
focus one color at a time.
BLU_PIC, GRAY_PIC, GRN_PIC, RED_PIC, WHT_PIC
Description A solid blue (BLU), gray, green (GRN), red, or white (WHT) box fills the active video area.
Only the white fill has a secondary version. It can be changed to a black fill by pressing the
Step key. The BLU_PIC image is shown below.
Test Purity adjustment