Hitachi 19LD4550U Service Manual page 76

19"LCD TV
1.2. W/B Adjustment
• The color temperature at the screen Should be :
CCT
x
y
Tolerance ∆x, ∆y = +/- 0.020
Factory alignment tolerance ∆x, ∆y = +/- 0.005
1.2.1 Prepare
1) Power on the Chorma 22291/23291 and power on the PC.
2) Change TV Source to PC mode。
3) Connect PC Com3 to Chroma 22291/23291 RS-232 connector. Make sure USB-to-Serial Com to Com7.
3.2.2 W/B Adjust
1)Open the program，press the Config button，if serial Comm open fail, then you must check whether Com3 and
Com7 are exist。
2) Press Connect to CA-210 button, then wait a minute, until connect OK.
3)If step one and step two are OK，press the PROGRAM button start adjustment。
Warm
6500k
0.313
0.329
Normal
8000k
0.295
0.305
75
Hitachi 19LD4550U
Cool
9300k
0.285
0.293