BenQ VM2221 Product Service Manual page 26

13. DDC function PC or Pattern Generator D620 DDC Test Card
checking
14. CR value PC or Pattern Generator
adjustment
F
15. irst APS setup
1.
2.
1. Make BRIGHTNESS and CONTAST shift to
the mix and black picture，to measure the mix
brightness.
2. Make BRIGHTNESS and CONTAST shift to
the mix and white picture，to measure the mix
brightness.
.3. Also figure out that CR value
U
sing the remote control to press Menu +55800
26
DDC Tester direct through signal line to get
into machine EEPROM to save and take data.
to confirm data whether is right