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
。
