Copyright©2008 LG Electronics.Inc.All right reserved - 21 - LGE Internal Use Only
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied to the models of 19LG3000，22LG3000and 26LG3000
2. Specification.
2.1 Adjustment must be done in the correct sequence.
2.2 The adjustment must be performed at 25±5°C temperature and 10 to 90% relative humidity if there is no specified
designation.
2.3 The input voltage of the receiver must be kept between 90 to 264 V，50/60 Hz ± 3 Hz.
2.4 Before adjustment execute Heat-Run for 30 minutes at RF no signal.
3. ADC Calibration
3.1. ADC Calibration
ADC Component RGB-PC
19LG3000
22LG3000
Timing:314
Pattern:185
720P/50HZ
Timing:137
Pattern:42
1024*768/50HZ
3.1.1 Prepare
3) Connect PC Com3 to Chroma 22291/23291 RS-232 connector. Make sure USB-to-Serial Com to Com7.
3.1.2 ADC Picture
3.1.3 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。
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