ROADSTAR TVD-1438
Service Manual

VI. G2 VOLTAGE ALIGNMENT
1.Receive a grey scale pattern. 2.Enter the SERVICE MODE to select the TV. 3.Press the button then the TV will become Horigontal Line. button then the TV Screen will become Normal. 4.To adjust the screen VR to make the Horigontal Line just illuminate. 5.After a justment is completed,press the

VII. WHITE BALANCE ALIGNMENT
1. Degauss the picture by degaussing coil. 2. Receive a black and white pattern. 3. Enter into the SERVICE MODE select.DRIVE.R.DRIVE.B.CUTOFF.R.CUTOFF.G CUTOFF.B. 4.Adjust the value to obtain uniformly white picture 9300° +3 JND k

VIII.SUB-BRIGHTNESS ALIGNMENT(SBRI)
1.Receive a grey scale pattern. 2.Enter into the SERVICE MODE select SUB-BRI . 3.Adjust the value until the brighness bar can just be seen.

IX. FOCUS ALIGNMENT
1) Set the Brightness and Contrast to middle position. 2) Reveive a monoscope pattern. 3) Adjust focus control to obtain sharpest picture.

X. HIGH POT TESTING
1) Short the L-pole and N-pole of AC line cord. 2) Switch on the power switch of the TV set. 3) The High Pot Tester(-)connect to the L and N pole, ( + ) to the METAL PART of CABINET.

CONDITION TEST STANDARD SAFETY STD. VDE,SAA BS CHINASTANDARD UL 3.0KV 10mA/1MIN 4.0KV 10mA/1MIN 3.0KV 10mA/1MIN 1.0KV 5mA/1MIN

T E S T S TA NDA RD FOR PRODUCTION

> 3.5KV < 10mA/ > 10SEC > 4.0KV < 10mA/ > 10SEC > 3.3KV < 5 mA/ > 6 SEC > 1.25KV < 5mA/ > 1 SEC

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