Daewoo DPX-42D1 Service Manual - 7. Adjusting Method
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7-1. Adjusting WHITE BALANCE
(1) Input 5 STEP GRAY SCALE PATTERN to Video Input Terminal.
(2) Set the SCREEN MODE to NORMAL.
(3) Enter SERVICE MODE by inputting remote controllers [“1” => “MUTE” => “RECALL”=> “MUTE” BUTTON],
and then select “COLOR CONTROL” and check Default Values of SERVICE MODE Items.
(4) Attach WHITE BALANCE METER(FACTORY USE METER: CA-100) SENSOR to 80% Gray Scale part.
(5) Adjust WHITE BALANCE by varying R,G,B GAIN
-. Control R,G,B GAIN values so that the ranges are within Default Value10. If deviate from the range, classify the
SET disqualified.
-. Set color coordinate to x = 0.2800.01, y = 0.2900.01 and color temperature to above or equal to 10,000K.
(6) Attach WHITE BALANCE METERs SENSOR to 40% Gray Scale part.
(7) Adjust WHITE BALANCE by varying R,G,B BIAS-. Control R,G,B BIAS values so that the ranges are
within Default Value5. If deviate from the range, classify the SET disqualified.-. Set color coordinate to
x = 0.2800.01, y = 0.2900.01.
(8) Repeat above (4) ~ (7) until color coordinate is x=0.280, y=0.290. Attach WHITE BALANCE METERs SENSOR to
100% Gray Scale part. Control SUB CONTRAST so that LUMINANCE is above or equal to 140 Cd/m2.
(9) Press “Power” button and Exit SERVICE MODE.
7. Adjusting Method
119
Blue Gain
127
Blue Offset
100
Green Gain
117
Green Offset
122
Red Gain
122
Red Offset
100
Sub Contrast
123
Sub Brightness
DPX-42D1NMSB(Default Value)