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ADJUSTMENT INSTRUCTION
LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
1. Coverage
Apply to 21.5’’/23”/ 24’’/27’’Wide monitor made in Monitor Factory(Kumi Korea) or made in accordance with the
standard of
Kumi Factory process.
2. Appointment
2.1 Adjustment must be done as fixed sequence, and adjustment sequence can be modified after agreement with
the responsible R&D engineer considering mass-production condition.
2.2 Power : AC 100-240V to Adapter, 19Vdc out
2.3Inputsignal:As Product Standard(Signal ROM:
2.4 Warm-up Time : Depends on a
ssemble line(Recommend : Over 5 minutes)
2.5 Adjustment equipment :
White balance equipment : CA-110/210(or equivalent)
Signal Generator : VG-819(or VG828 or equivalent)
PC : More than 486 computer with White balance adjust program.,
HDCP Adjusting Jig equipment.
Etc. : Display Monitor, Oscilloscope
3. Adjustment
3.1 Overview
Use factory automation equipment and adjust automatic movement.
But, do via passivity adjust in error occurrence.
3.2 Adjustment order(refer to the Adjustment standard and adjustment command table)
3.2.1 Board Assembly Line
Connect input signal to 15pin D-sub.
■ Ready for adjustment: check whether adjustment command works normally or not and the
operating state of each mode.
Check the display
state of gray color when 256 gray scale pattern is embodied.
Read by EEPROM Read Command to check whether initial value is correct or not.
3.2.2 Total Assembly Line
1920x1080
This model don’t need to input HDCP key, because internal HDCP key is embedded in
scaler IC.
Ready : Warm-up in 5 minutes in the state with signal(depends on line condition)
Connect input signal to D-sub.
Default value before adjustment : Contrast “70” , Brightness “100(Max)”
3.2.3 Adjustment of Horizontal/Verticality screen position, Clock and Phase at each Mode.
There is no special factory mode adjustment.
Writing initial value of EEPROM in Board Assembly line is adjusting Preset
Mode and Reset
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