Adjustment Instruction - LG 22LG3000 Service Manual

1. Application Range
This spec. sheet is applied to the models of 22LG3000 and 22LG3010.
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
3.1.1 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.
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
Copyright©2008 LG Electronics.Inc.All right reserved
Only for training and service purposes

ADJUSTMENT INSTRUCTION

ADC
22LG3000
22LG3010
Component
Timing:314
Pattern:185
720P/50HZ
。 If adjust fail ,"ADC" will be red, as
- 21 -
RGB-PC
Timing:137
Pattern:42
1024*768/50HZ
LGE Internal Use Only
。