Hitachi 26LD4550U, Service Manual

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26 ″ LCD TV Hitachi 26LD4550U
74
7. White Balance, Luminance Adjustment
1. ADC Calibration
1.1. ADC Calibration
ADC Component RGB-PC
26LD4550U
Timing:314
Pattern:185
720P/50HZ
Timing:137
Pattern:42
1024*768/50HZ
1.1.1 Prepare
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 。 If adjust fail ,"ADC" will be red,
as 。
1) Power on the Chorma 22291/23291 and power on the PC.
2)Change TV Source to PC mode
。