BenQ TL650 Service Manual page 28

C Full White/Black
D DDC check
E 256/32/16 Gray
F General-1 pattern
I DMW
J N-test
Contrast ratio, dot check, blemish check
Check the DDC information,
Including S/N, model, manufacturer
name, and product code.
Gray Check
Check color temperature Including warm;
cool; neutral; user
Performance/function check
Performance/function check
Performance/function check
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