LG 28LH4530, Service Manual

Page: 11 / 18

- 11 - LGE Internal Use Only
Copyright © LG Electronics. Inc. All right reserved.
Only for training and service purposes
*Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (Illumination is less than 10ux).
2) Adhere closely the Color Analyzer ( CA210 ) to the module
less than 10cm distance, keep it with the surface of the
Module and Color Analyzer’s Prove vertically.(80~100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others,
check the back light on.
* Auto adjustment Map(RS-232C)
RS-232C COMMAND
[ CMD ID DATA ]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End
** Caution **
Color Temperature : COOL, Medium, Warm.
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
*Note : Manual W/B process using adjusts Remote control.
1) After enter Service Mode by pushing "ADJ" key,
2) Enter "White Balance" by pushing "►" key at "White Bal -
ance".
* When doing Adjustment, Please make circumstance as
below.
4.5. Model Name & SW Version & Adjust
check.
* Press the ‘Instart’ key of ADJ remote controll
4.5.1. Model Name& SW Version Check
1) Check ‘Model Name’.
2) Check ‘S/W Version’ (Refer to the IC Ver. in the BOM)
4.5.2. Adjust Check
1) Check ‘Country Group’
2) Check ‘Area Option’
3) Check ‘Tool Option’ (Refer to the BOM Comments)
4) Check ‘EDID[RGB&HDMI]’ is OK.
* After check all, Press the 'EXIT' key of ADJ remote controll
to go out SVC menu.
4.6. Outgoing condition Configuration
* After all function test., press IN-STOP Key by SVC Remote
controll. And make Outgoing Condition
4.7. Ship-out mode check (In-stop)
▪ After final inspection, if monitor is power only mode, In-stop
process is started automatically when PC is turned off by
command.
Check that the unit goes to Stand-by mode.
▪ For manual in-stop, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.
▪ In-stop time
- total required time : around 10 second.(Maximum 12
second)
; time to display “In-stop OSD” : 8 second.
; time to turn on RED LED : 2 second.
RS-232C COMMAND
[CMD ID DATA]
MIN CENTER
(DEFAULT)
MAX
Cool Mid Warm Cool Mid Warm
R Gain jg Ja jd 00 172 192 192 192
G Gain jh Jb je 00 172 192 192 192
B Gain ji Jc jf 00 192 192 172 192
R Cut 64 64 64 128
G Cut 64 64 64 128
B Cut 64 64 64 128
Color Analyzer
Computer
Pattern Generator
※
※
If TV internal pattern is used, not needed
Signal Source
Probe
RS-232C
RS-232C
RS-232C
DFT JIG
RGB Cable