General Adjustment - Daewoo DSC-30W60N Service Manual

General Adjustment

In the majority of cases, a high definition digital television will need basic adjustments such as high voltage, screen voltage , focus,
white balance, sub brightness, geometry, and blanking width. All adjustments should be performed after heat-running the set for at
least 20 minutes.
1. Press the S1 button on the service remote control, and then full white pattern will appear on the screen.
2. Press again the S1 button, and then the pattern will disappear.
High Voltage Adjustment
1. Operate the set for at least 20 minutes.
2. Connect the probe of high voltage meter to CRT ANODE.
3. Adjust the variable register RV801 on the power assembly so that high voltage may be to be between 29.5KV ~ 30.5KV .
Screen Voltage Adjustment
1. Press the S2 button on the service remote control.
1) Video Input mode will be VIDEO 1.
2) Vertical deflection will be down, and a horizontal line will appear on the screen.
2. Turn the variable screen volume of FBT to adjust screen voltage, at the point that a horizontal line only just appears.
Focus Adjustment
1. Tune on Retma pattern.
2. Turn the variable focus volume of FBT so that the center area of screen is sharp scanning line.
3. Turn the variable volume R522 on the CRT assembly so that the edge of screen may be sharp scanning line.
White Balance Adjustment
1. Input the Black & white signal to the HD Component jack on the rear panel .
<Black & White Pattern>
Light Area Check
Dark Area Check
2. The color temperature is the following.
x=0.270 6 0.005 y=0.270 6 0.005
Color temperature : 10500 8K
3. Light Area Adjustmen t
1) Press S7 button.
2) On the center of light area, attach the sensor of a white balance meter.
3) To be Y=125, turn the Light Beam control volume on the White & Black pattern generator.
4) To adjust the white balance of light area, select Drive R, G, B with CHANNEL Up or Down buttons, and adjust individual
vales with VOLUME Up or Down buttons.
3. Light Area Adjustment
1) Press S7 button.
2) On the center of light area, attach the sensor of a white balance meter.
3) To be Y=125, turn the Light Beam control volume on the White & Black pattern generator.
4) To adjust the white balance of light area, select Drive R, G, B with CHANNEL Up or Down buttons, and adjust individual
vales with VOLUME Up or Down buttons.