LG Electronics 20LS7D(C)-UB service manual ADC-Set Adjustment, Set Method

3-4. Set Method

(1)MCU Select: MTV512M64

(2)Option

R/W Option: Auto Write(Verity)

Jig Option: Myson

Transmit Speed: Medium

(3)Check: Just do it with blank micom.

(4)PORT

Chose Parallel Port (normal LPT1)

Attention:You must chose EPP when select Rom BIAS at LPT

3-5. Download Method

(1) Click the Load File.

(2)Locate and select the correct file from your computer. (*.hex).

(3) Click the Send.

(4) When you see (ISP COMPLETE) the download is complete.

4. ADC-Set Adjustment

4-1. Synopsis

ADC-Set adjustment to set the black level and the Gain to optimum.

4-2. Test Equipment

Service R/C, 801GF(802V, 802F, 802R) or MSPG925FA Pattern Generator

(480i/1080i The Horizontal 100% Color Bar Pattern adjust to within 0.7±0.1Vp-p)

Ez Adjust

1. CVBS ACC Adjust

2. ADC 480i Comp1

3.ADC 1080i Comp1/ RGB

4.Reserved

5.Sub- Brightness/ Contrast

6.White- Balanc e

7.Module Control

8.Temperature Threshold

9.White- Pattern

10.2 Hour Of f Option

<Adjustment Mode>

<Adjustment Pattern: 480i/1080i 60Hz HozTV31Bar Pattern>

4-3. Adjustment

(1)Select Component as the input with 100% Horizontal Color Bar Pattern(HozTV31Bar) in 480i Mode

(2)After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘2. ADC 480i Comp1’.

Pressing the Enter Key to adjust automatically.

(3)When the adjustment is over, 'MST3361 Component Success’ is displayed. If the adjustment has errors, 'MST3361 Configuration Error’ is displayed.

(4)Select Component 1 as the input with 100% Horizontal Color Bar Pattern(HozTV31Bar) in 1080i Mode.

(5)After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘3. ADC 1080i Comp1/RGB’.

Pressing the Enter Key to adjust automatically.

(6)When the adjustment is over, 'MST3361 Component Success’ is displayed. If the adjustment has errors, 'MST3361 Configuration Error’ is displayed.

(7)After the Component MST3361 adjustment is over, convert the RGB-DTV Mode and display Pattern.

When the adjustment is over, 'MST3361 RGB_DTV Success’ is displayed.

(8)Readjust after confirming the case Pattern or adjustment condition where the adjustment errors.

(9)After adjustment is complete, exit the adjustment mode by pressing the ADJ KEY.

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