50PM1M-UC (CHASSIS:RF-052C) - LG TV Service Manual (repair manual). Page 11

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Auto adjustment Map(RS-232C)

(For Manual Adjustment)

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Operate the zero-calibration of the CA-100, then stick

sensor to PDP module surface when you adjust.

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For manual adjustment, it is also possible by the following

sequence.

(1) Select white pattern of heat-run mode by pressing power

on key on remote control for adjustment then operate heat
run more than 15 minutes.

(2) As below Fig. 9, Supply 216Level (85 IRE) full screen

pattern to Video input.
(RCA: AV1, SCART: AV3, PAL: 50Hz, NTSC: 60Hz)

(3) Press the TV/AV KEY on R/C for converting input mode.
(4) Set the PSM to Standard mode in Picture menu.
(5) Enter the White Balance adjustment mode by pressing the

INSTART key twice(White Balance) on R/C.

(6) Stick sensor to center of the screen and select each items

(Red/Green/Blue Gain and offset) using 

D

/

E

(CH +/-) key

on R/C.

(7) Adjust Only High Light with R Gain/ B Gain using 

F

/

G

(VOL +/-) key on R/C.

(8) Adjust it until color coordination becomes as below.

(Initially, R/G/B gain and R/G/B offset values are fixed as
bleow
Red Gain: 82, Green Gain: 80, Blue Gain: 86
Red Offset: 7D, Green Offset: 7E, Blue Offset : 80)

Bright : 

High Light : 80 ± 20cd

Color-Coordinate :

High Light :  X : 0.285 ± 0.002

Y : 0.290 ± 0.002

Color Temperature : 9,300°K ± 500°K

(9) When adjustment is completed, Exit adjustment mode

using EXIT key on R/C

[Requirement]

It is very import to use correct adjustment pattern like fig. 9.
1) Within the pattern, color sequence should be aligned:

W-Y-C-G-M-R-BLUE-BLACK
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)

2) If Minimum Black Level and/or Maximum White Level is not

correct, Do select 100% Color Bar Pattern.

(1) Remote controller for adjustment
(2) 802F Pattern Generator

(Which has 720p Ypbpr output & PC 1024x768 @60Hz
with Standard(0.7Vpp) Vertical 100% Color Bar Pattern as
Fig. 10)

(1) Input the Component 720p 100% Color Bar signal into

Component1 or Component2.

(2) Set the PSM to Standard mode in Picture menu.
(3) Press ADJ key on R/C for adjustment.
(4) Press the 

G 

(Vol. +) key operate To set, then it becomes

automatically.

(5) Auto-RGB OK means complete adjustment

216 Level (85 IRE)

Type

Baud Rate

115200

Index

R Gain

G Gain

B Gain

R Offset

G Offset

B Offset

Data bit

8

Cmd1 Cmd2

j

a

j

b

j

c

j

d

j

e

j

f

Stop bit

1

Parity

NONE

RF-052A/B/C

Protocol

Setting

Data

Min Value

00(00)

00(00)

00(00)

00(00)

00(00)

00(00)

Max Value

255(FF)

255(FF)

255(FF)

255(FF)

255(FF)

255(FF)

(Fig. 9)  Pattern for Adjjustment of White Balance

(Fig. 10)  Auto Component Color Balance Test Pattern