LG / GOLDSTAR CT29Q10ET
Service Manual

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Screen Voltage Adjustment
Test Point Adjust : RK (Red Cathode of CPT Board) : Screen Control of FBT

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Deflection Data Adjustment (Line SVC-1)
NOTE: To enter SVC mode, press "OK" buttons on both TV set and the Remote control at the same time.

1. Preparation for Deflection Adjustment
1) At SVC mode, press the Yellow colored button. If the Remote Controller doesn't have the Yellow button, use the button under the Channel Down(PR U) button. And then, deflection data adjustment OSD (SVC1 mode) will be displayed. 2) Press Channel UP/DOWN button for desirous function Adjustment. 3) Press Volume UP/DOWN button to adjust the data.

1) Tune the TV set to receive a digital pattern. 2) Press MIX button on remote controller for Service to get into the Screen Adjust Mode. 3) Adhere the Color Analyzer on the White window of CPT face. 4) Adjust Screen Volume of FBT so that the luminance of White window is 40!1ft/L.

White window OSD
VL--(Vertical Linearity) Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT.

SCREEN ADJUST MODE

VH--(Vertical Height) Adjust so that the circle of a digital circle pattern may be located within the effective screen of the CPT.

Fig. 2 SVC MODE for SCREEN Adjust

SC--(Vertical "S" correction) Adjust so that all distance between each horizontal lines are to be the same.

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Focus Adjustment
NOTE: This adjustment should be performed after warming up for 10 minutes. Test Point Adjust : Observing Display : Focus control of FBT HS--(Horizontal Shift) Adjust so that the vertical center line of a digital circle pattern is in accord with geometric vertical center of the CPT. VS--(Vertical Shift) Adjust so that the horizontal center line of a digital circle pattern is in accord with geometric horizontal center of the CPT.

1) Tune the TV set to receive a digital pattern. 2) Adjust the lower Focus control of FBT for the best focus of vertical line B. 3) Adjust the upper Focus control of FBT for the best focus of area A. 4) Repeat above step 2) and 3) for the best overall focus.

EW--(Horizontal Width) Adjust to that a digital circle pattern looks like exact circle.

EP--(East-west Parabola) Adjust so that middle portion of the outermost left and right vertical line looks like parallel with vertical lines of the CPT.

A

B

EC--(East-west Corner) Adjust so that the vertical line at every 4 corners of the screen looks like parallel with the vertical lines of the CPT.

ET--(East-west Trapezium) Adjust to make the length of top horizontal line same with it of the bottom horizontal line.

Fig. 3

b

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