Sub Brightness Adjustment - LG CA-21M60E Service Manual

: Deflection Data Adjustment (Line SVC-2)
1. Preparation for Adjustment
1) Select SVC-2 Mode.
2) Tune the TV set to receive Digital Pattern and set ARC
Mode to Standard.
2. Initial deflection data and average data for CPT
Status Default
VL 9
VS 3
VA 37
HS 11
SC 2
3. Adjustment
1) VL(Vertical Linearity) Adjustment
Select VL adjustment mode to adjust the upper and lower
vertical size to be the same for horizontal center line.
2) VS(Vertical Shift) Adjustment
Adjust the geometrical horizontal center line of the screen to
be coincided with the vertical center line of CPT.
3) VA(Vertical Amplitude) Adjustment
Adjust the upper and lower part of big circle of the received
pattern to be placed on 6~7mm from the valid screen.
4) HS(Horizontal Shift) Adjustment
Adjust the geometrical vertical center line of the received
screen to be coincided with the horizontal center line of CPT.
5) SC(Vertical S Correction) Adjustment
Adjust the width of upper/center/lower grid of the received
pattern to be the same.
: SECAM Background Color Adjustment(CT-, CF-)
1. Preparation for Adjustment
Select ÒS R-YÓ or ÒS B-YÓ of SVC Mode 4.
2. Adjustment
While switching SECAM and PAL channels in turns, press VOL
F/G key until the background color of SECAM channel to be
the same as that of PAL Pattern at S R-Y or S B-Y.
21" LG 20" LG
9 9
3 1
34 39
12 10
2 2
: White Balance Adjustment.(LINE SVC-1)
NOTE : This adjustment should be performed after screen voltage
adjustment.
1) Tune the TV set to receive 100% white pattern.
2) Select SVC-1 Mode.
3) Press PR UP/DOWN key to select BG, GG, BG, GC.
Adjust BG, GG on Brightness 40!1FL and BG, GC on
Brightness 4.5!0.5FL with VOLF/G key to get the color value.
4) Adjust BG, GG from the initialized data to get the color value of
14" LG
X=281!8, Y=288!8.
9 5) R,G,B initial data and average data
3
Status
37
RC
11
GC
2
BC
GG
BG

: Sub Brightness Adjustment

NOTE: This adjustment should be performed after White
1) Input FUBK pattern to Antenna jack.
2) Select S-BRI of SVC-3 mode.
3) Press VOL F/G until (a) and (b) of FUBK are distinct and
press VOL G twice more.
: OPTION Adjustment (SVC MODE:OPTION-1,
OPTION-2)
NOTE: When the EEPROM has been replaced, the Option
1) Press OK buttons on both TV set and Remote Controller at
the same time to get into SVC mode.
2) Press the Yellow button several times to find OPTION-1 or
OPTION-2.
3) Input the correspond OPTION data referring to Table below
with the numeric buttons 0~9.
- 12 -
Initial Data
127
147
123
59
64
Balance adjustment.
(a)
data should be restored as the function of individual
system and specification.
Remark
(b)