LG 32LB550B, Service Manual, Page: 13 / 73

*Manual W/B process using adjusts Remote control.(TBD) *Manual W/B process using adjusts Remote control.(TBD)
■ ■ Color analyzer(CA100+, Color analyzer(CA100+, CA210) should be CA210) should be used in used in the the
calibrated ch by CS-1000 calibrated ch by CS-1000
■ Operate the zero-calibration of the CA100+ or CA-210, then ■ Operate the zero-calibration of the CA100+ or CA-210, then
stick sensor to the module when adjusting. stick sensor to the module when adjusting.
■ After enter Service Mode by pushing “ADJ” key, ■ After enter Service Mode by pushing “ADJ” key,
■Enter White Balance by pushing “►” key at “8. White Balance”. ■Enter White Balance by pushing “►” key at “8. White Balance”.
■ For manual adjustment, it is also possible by the following ■ For manual adjustment, it is also possible by the following
sequence. sequence.
(1) Set TV in Adj. mode using POWER ON (1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on (2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface the center of LCD module within 10cm of the surface
(3) Press ADJ key -> EZ adjust using adj. R/C -> 8. White- (3) Press ADJ key -> EZ adjust using adj. R/C -> 8. White-
Balance then press the cursor to the right (KEY►). When Balance then press the cursor to the right (KEY►). When
KEY(►) is pressed 206 Gray internal pattern will be displayed. KEY(►) is pressed 206 Gray internal pattern will be displayed.
(4) Adjust Cool modes (4) Adjust Cool modes
(i). Fix the one (i). Fix the one of R/G/B gain of R/G/B gain to 192 (default data) to 192 (default data) and decrease and decrease
the others the others
(If G (If G gain gain is adjusted is adjusted over 172 over 172 and and R R and and B B gain gain less than less than
192, increase G gain to 192 and increase R gain and B gain 192, increase G gain to 192 and increase R gain and B gain
※ ※ CASE Cool CASE Cool
First adjust the coordinate far away from the target value(x, y). First adjust the coordinate far away from the target value(x, y).
(1) (1) x, y x, y > targe > targe t t
i) Decrease the R, G. i) Decrease the R, G.
(2) (2) x, y x, y < targe < targe t t
i) First decrease the B gain, i) First decrease the B gain,
ii) Decrease the one of the others. ii) Decrease the one of the others.
(3) (3) x > x > target , y< target , y< target target
i) First decrease B, so make y a little more than the target. i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R ii) Adjust x value by decreasing the R
(4) (4) x < x < target , y target , y >target >target
i) First decrease B, so make x a little more than the target. i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G ii) Adjust x value by decreasing the G
How to adjust How to adjust
(1) If G gain is adjusted over 172 and R gain and B gain less (1) If G gain is adjusted over 172 and R gain and B gain less
than 192 , Adjust is O.K. than 192 , Adjust is O.K.
(2) If G gain is less than 172 , increase G gain by up to 172, (2) If G gain is less than 172 , increase G gain by up to 172,
and then increase R gain and B gain same amount of and then increase R gain and B gain same amount of
increasing G gain. increasing G gain.
(3) If R gain or B gain is over 255 , Readjust G gain less than (3) 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 255 172, Conform to R gain is 255 or B gain is 255
※ ※
CASE Medium / Warm CASE Medium / Warm
First adjust the coordinate far away from the target value(x, y). First adjust the coordinate far away from the target value(x, y).
(1) (1) x, y x, y > targe > targe t t
i) Decrease the R, G. i) Decrease the R, G.
(2) (2) x, y x, y < targe < targe t t
i) First decrease the B gain, i) First decrease the B gain,
ii) Decrease the one of the others. ii) Decrease the one of the others.
(3) (3) x > x > target , y< target , y< target target
i) First decrease B, so make y a little more than the target. i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R ii) Adjust x value by decreasing the R
(4) (4) x x < < target , target , y y >target >target
i) First decrease B, so make x a little more than the target. i) First decrease B, so make x a little more than the target.