ADJUSTMENT
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3
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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Coverage
Apply to
60.4
cm (
23.8
inch)
Wide monitor made in Monitor Factory
Gumi Korea) or made in accordance with the standard of Gumi
Factory process.
2. Appointment
2.1 Adjustment must be done as fixed sequence, and adjustment
sequence can be modified after agreement withthe responsible
R&D engineer considering mass-production condition.
2.2 Power : AC 100 - 240 Voltage (Free)
2.3 Input signal:
2.3.1 RGB Input: As Product Standard (Signal ROM : LB800K
Ver1.6)
2.3.2 RJ-45 input : As Product Standard (Ethernet connection
through network from Host PC)
* PC spec for MK(Minikey) Loader (TBD): CPU - Dual core 2.0
GHz
D
, Memory - 2 GByte
D
*PC spec for Host PC (TBD): CPU - Dual core 2.0 GHz
D
,
Memory - 2 GByte
D
2.4 Warm-up Time: Over than 30 minutes
2.5 Adjustment equipment : White balance equipment (CA-110),
Display adjust equipment, VG-813(or VG819), Oscilloscope,
PC (More than 486 computer ) & White balance adjust
program.
3. Adjustment
3.1 Overview
Use factory automation equipment and adjust automatic
movement. But, do via passivity adjust in erroroccurrence.
3.2 Adjustment order
(refer to the Adjustment standard and adjustment command table)
3.2.1 Board Assembly Line
3.2.1.1 15pin D-sub (RGB)
· Connect input signal to 15pin D-sub.
· Check the firmware version & model name. And write the
firmware code to the serial Flash ROM by ISP.
· 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
patterns is embodied.
· Read by EEPROM Read Command to check whether initial
value is correct or not.
3.2.1.2 MK( Minikey ) Loading
· Open MK Loader Tool on MK Loader PC.
( * MK Loader PC should be connected Internet)
· Connect input signal to RJ-45 input with LAN cable connected
network devices such as routers.
· Turn on the Monitor set.
· Click the box when the °∞empty port °∞box is changed to “write
mini-key” in MK Loader Tool.
3.2.1.2 RJ-45 input
· Connect input signal to RJ-45 input with LAN cable connected
network devices such as routers.
· Check USB 1.1 Port (Keyboard/ Mouse) : @RJ-45 input
· Check USB 2.0 Port (USB Memory Stick 2port) : @RJ-45 input
· Check Audio (Ear-phone out/ Mic in/ Speaker) : @RJ-45 input,
PC audio volume : MAX
* LAN cable
* Router
* PC: vSpace S/W for N+ ( Ver 4.5.xx.xx ) --- Caution: Ver
4.4.xx.xx for N1742L family
3.2.2 Total Assembly Line
· Ready : Heat-run during5 minutes in the state with signal
· 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 Clock 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 mode. (EEPROM is initialized when AC Power is
ON first.)
· If the change of FOS data is needed after M.P, it is possible by
writing Mode Data with EEPROM write command or modifying
the Mode Data in MICOM itself.
3.2.4 Color coordinates adjustment and Luminance
adjustment.
3.2.4.1 Color coordinates adjustment
· Monitor Contrast / Brightness
- Contrast : 70
- Brightness : 100(Max)
· CA-110: Set “channel 9”
· Signal Generator : At cut-off and drive --> 16 step pattern for
ADC (Program No.: 31)
- Output Voltage : 700 mVp-p
- Output Mode : Mode 12 (SXGA 60 Hz)mode Setting.
3.2.4.2.Adjustment : Board Assembly Line
· Select RGB mode
· Input 16 step pattern for ADC (Program No.31 (Mode 12,Pattern
11)). (Video level : 700 mVp-p)
· Adjust by commanding AUTO_COLOR_ADJUST
· Confirm “Success” message in Screen or Check the data of
0xFE, 0xFF address of EEPROM(0XA6) is 0xAA after waiting 5
seconds.
· If there is “FAULT” message or the data of 0xFE, 0XFF address
of EEPROM(0xA6) is not 0xAA, do adjust again.
· If all Adjustment is completed, the values of 6500K, User Color
and 9300K are saved automatically.
· Select RGB mode
· Input 16 step pattern for ADC (Program No.31 (Mode 12,Pattern
11)). (Video level : 700mVp-p)
· Adjust by commanding AUTO_COLOR_ADJUST
· Confirm “Success” message in Screen or Check the data of
0xFE,0xFF address of EEPROM(0xA6) is 0xAA after waiting 5
seconds.
3.2.4.3. Confirm at Total Assembly Line: adjustment
· Check the data of 0xFE, 0xFF address of EEPROM(0xA6) is
0xAA.
· If the data of 0XFE, FF address of EEPROM(0xA6) is not
0xAA, do adjust again by 3.2.4.2.
Summary of Contents for 24MB35D
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