White-Balance, Luminance Adjustment - Hitachi 26LD4550U Service Manual

26"LCD TV
7. White Balance, Luminance Adjustment
1. ADC Calibration
1.1. ADC Calibration
ADC
26LD4550U
1.1.1 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.
1.1.2 ADC Picture
1.1.3 ADC 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)If step one is OK，press the PROGRAM button start adjustment。
3) If adjust successful , "ADC" will be green, as
as 。
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Component
Timing:314
Pattern:185
720P/50HZ
74
Hitachi 26LD4550U
RGB-PC
Timing:137
Pattern:42
1024*768/50HZ
。 If adjust fail ,"ADC" will be red,