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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5.1.4. Adjustment Command (Protocol)
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
Explanation
CMD
DATA
ID
Wb
00
00
Begin White Balance adj.
Wb
00
ff
End White Balance adj.
(internal pattern disappears )
(2) Adjustment Map
Adj.
item
Command
(lower caseASCII)
Data Range
(Hex.)
Default
(Decimal)
CMD1 CMD2
MIN
MAX TBD
Cool
R Gain j
g
00
C0
TBD
G Gain j
h
00
C0
TBD
B Gain j
i
00
C0
TBD
Medium R Gain j
a
00
C0
TBD
G Gain j
b
00
C0
TBD
B Gain j
c
00
C0
TBD
Warm
R Gain j
d
00
C0
TBD
G Gain j
e
00
C0
TBD
B Gain j
f
00
C0
TBD
5.1.5. Adjustment method
5.1.5.1. Auto WB calibration
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
key)
(2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5) When WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
5.1.5.2. Manual adjustment
(1) Set TV 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 à 9. White-
Balance then press the cursor to the right (KEY►). When
KEY(►) is pressed 206 Gray internal pattern will be
displayed.
(4) Adjust Cool modes
(i) Fix the one of R/G/B gain to 192 (default data) and
decrease the others.
( If G gain is adjusted over 172 and R and B gain less
than 192 , Adjust is O.K.)
(ii) If G gain is less than 172,
Increase G gain by up to 172, and then increase R gain
and G gain same amount of increasing G gain.
(iii) If R gain or B gain is over 255,
Readjust G gain less than 172, Conform to R gain is 255
or B gain is 255
(5) Adjust two modes (Medium / Warm) Fix the one of R/G/B
gain to 192 (default data) and decrease the others.
(6) Adj. is completed, Exit adjust mode using “EXIT” key on
Remote controller.
5.1.6. Reference (White Balance Adj. coordinate and
color temperature)
▪ Luminance: 204 Gray, 80IRE
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Coordinate
Temp
△
uv
X
Y
Cool
0.271
0.270
13,000K
0.0000
Medium
0.286
0.289
9,300K
0.0000
Warm
0.313
0.329
6,500K
0.0000
▪ Standard color coordinate and temperature using
CA-210(CH-14) – by aging time
(1) Normal line (From January to February) LGD
Aging time
(Min)
Cool
Medium
Warm
X
Y
X
Y
X
Y
271
270
286
289
313
329
1
0-2
286 295 301
314
328
354
2
3-5
284 290 299
309
326
349
3
6-9
282 287 297
306
324
346
4
10-19
279 283 294
302
321
342
5
20-35
276 278 291
297
318
337
6
36-49
274 275 289
294
316
334
7
50-79
273 272 288
291
315
331
8
80-119
272 271 287
290
314
330
9
Over 120
271 270 286
289
313
329
Summary of Contents for 55LF5950
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