Sharp R1874T Service Manual download pdf (Page 37)

LC-46/52E77U

5 – 13

8. Adjustment of white balance

8.1. White balance adjustment

Adjustment item Adjustment conditions Adjustment procedure

1 Setting For detailed adjustment procedure, refer to “Kameyama Model Integral Monitor WB

Adjustment Specifications V1.6”.

1) Make the following settings for the set.

AV MODE: [DYNAMIC]

Backlight: +16

Active Backlight: OFF

Aging time: Min. 60 minutes

2) Connect the white balance adjustment tool to the set.

2 Automatic adjust-

ment execution

[Command]

Process mode

KRSW0001

KKT10037

Setting

KYOF0000

OSDS0001

SBSL0016

Multi-point adjustment

mode

MSET0001

Point 6

WBI60928

MG6G****

MG6B****

MG6R****

Point 5

WBI50784

MG5G****

MG5B****

MG5R****

[Adjustment procedure]

1) Using the remote controller, transmit the “monitor adjustment process” code.

2) Set the 6th point to the specified gradation level. With the strongest color being fixed,

turn down the R, G and B settings to their reference levels.

3) Set the 5th point to the specified gradation level. Correct the G setting (3136 x 6th-

point G setting / 3712) (rounded off), and make the R and B settings to their reference

levels.

4) Set the 4th point to the specified gradation level. Correct the G setting (2320 x 6th-

point G setting / 3712) (rounded off), and make the R and B settings to their reference

levels.

5) Set the 3rd point to the specified gradation level. Correct the G setting (1680 x 6th-

point G setting / 3712) (rounded off), and make the R and B settings to their reference

levels.

6) Set the 2nd point to the specified gradation level. Correct the G setting (1136x 6th-

point G setting / 3712) (rounded off), and make the R and B settings to their reference

levels.

7) Set the 1st point to the specified gradation level. Correct the G setting (736 x 6th-

point G setting / 3712) (rounded off), and make the R and B settings to their reference

levels.

8) With the MSET0003 command, write the adjustment values and turn off the AC

power.

* Initial R, G and B settings at point 6: Gradation level set at 3712

* Initial R, G and B settings at points 1 thru 5: Corrected G setting at each point

(This is because the adjustment is made to achieve the same remainder of RGB setting /

4 at each point.)

[Adjustment value]

•As per the “standard set” submitted by Engineering Department Teaching set

[Adjustment reference] Instrument: Minolta CA-210 Engineering instrument

Point 4 Level Reference Adj. spec Ins. spec

WBI40580 Point 6 928 X=0.272 ±0.0010 ±0.0020

MG4G**** y=0.277

MG4B**** Point 5 784 X=0.272 ±0.0010 ±0.0020

MG4R**** y=0.277

Point 4 580 X=0.272 ±0.0015 ±0.0030

Point 3 y=0.277

WBI30420 Point 3 420 X=0.272 ±0.0020 ±0.0040

MG3G**** y=0.277

MG3B**** Point 2 284 X=0.272 ±0.0030 ±0.0060

MG3R**** y=0.277

Point 1 184 X=0.272 ±0.0040 ±0.0080

y=0.277

Point 2

WBI20284

MG2G****

MG2B****

MG2R****

Note Set conditions for inspection

AV MODE: [DYNAMIC] (Reset)

Monochro: ON

Active Contrast: OFF

Aging Time: Min. 60 minutes

Point 1

WBI10184

MG1G****

MG1B****

MG1R****

Writing

MSET0003

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 115 116

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