LG 49VM5C, Руководство по обслуживанию

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Only for training and service purposes
5.3.1.1. Adj. condition and cautionary items
1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
2) Probe location: Color Analyzer (CA-210) probe should
be within 10cm perpendicular of the module surface (80°
~100°)
3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes
- In case of LCD Back-Light on should be checked us -
ing no signal or Full-White pattern
5.3.2. Equipment
1) Color Analyzer: CA-210 (LED Module : CH 14)
2) Adj. Computer(During auto adj., RS-232C protocol is
needed)
3) Adjust Remocon
4) Video Signal Generator MSPG-925F 720p/204-
Gray(Model:217, Pattern:49)
→ Only when internal pattern is not available
5.3.3. Equipment connection MAP
5.3.4. Adj. Command (Protocol)
▪ RS-232C Command used during auto-adjustment.
RS-232C COMMAND
[CMD ID
DATA]
Explantion
wb 00 00 Begin White Balance adj.
wb 00 10 Gain adj.(internal white pattern)
wb 00 1f Gain adj. completed
wb 00 20 Offset adj.(internal white pattern)
wb 00 2f Offset adj. completed
wb 00 ff
End White Balance adj.
(internal pattern disappears )
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f → Gain adj. completed
*(wb 00 20(Start), wb 00 2f(end)) → Off-set adj.
▪ Adj. Map
Adj. item
Command
(lower caseASCII)
Data Range
(Hex.)
Default
(Decimal)
CMD1 CMD2 MIN MAX
Cool
R Gain j g 00 C0 172
G Gain j h 00 C0 172
B Gain j i 00 C0 192
R Cut 64
G Cut 64
B Cut 64
Medium
R Gain j a 00 C0 192
G Gain j b 00 C0 172
B Gain j c 00 C0 172
R Cut 64
G Cut 64
B Cut 64
Warm
R Gain j d 00 C0 192
G Gain j e 00 C0 172
B Gain j f 00 C0 172
R Cut 64
G Cut 64
B Cut 64
5.3.5. Adj. method
5.3.5.1. Auto WB calibration
1) Set in adj. mode using POWER ON(P-ONLY) key
2) Zero calibrate probe then place it on the center of the
Display
3) Connect Cable (RS-232C)
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sing), check adj. status pre
mode(Warm, Medium, Cool)
6) Remove probe and RS-232C to USB cable to complete adj.
▪ W/B Adj. must begin as start command “wb 00 00” , and fin -
ish as end command “wb 00 ff”, and Adj. offset if need
5.3.5.2. Manual adjustment Method.
1) Set in Adj. mode using POWER ON
2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface..
3) Press ADJ key
→
EZ adjust using adj. R/C
→
White-Bal -
ance then press the cursor to the right (KEY►). When KEY
(►) is pressed 204 Gray (80IRE) internal patterns will be
displayed.
4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of
color temperature.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu 7.White Balance, you can select one of 2 Test-pattern:
ON, OFF. Default is inner(ON). By selecting OFF, you can
adjust using RF signal in 204 Gray pattern.
Color Analyzer
Computer
Pattern Generator
※
※
If Signage internal pattern is used, not needed
Signal Source
Probe
RS-232C
RS-232C
RS-232C