Neotec NT-3500 - Page 7

5.4
H-SIZE & H-CENTER SETTING
5.4.1 Change the video signal to compatible Signal Generator to a 350 line crosshatch
pattern video signal. (NT-3602 480 LINE)
5.4.2 Adjust R405 (H-Phase) to set the picture in the center of the raster.
5.4.3
Adjust R503 (H-Width) for a horizontal display size of maximum.
5.5 V-SIZE & V-POSITION SETTING
5.5.1
Change the video signal to a compatible Signal Generator to a 350 line crosshatch
pattern video signal. (NT-3602 480 LINE)
5.5.2 Adjust R324 (V-Size) for a vertical display size of maximum.
5.5.3 Adjust R321 (V-Position) to set the picture in center of the raster.
5.5.4 Adjust R313 (V-Lin) to set the vertical linear +
-5%.
5.6 THE SIDE-PINCUSHION ADJUSTMENT
5.6.1 Change the compatible Signal Generator video signal to a 350 line crosshatch
pattern video signal. (NT-3 602 480 LINE)
5.6.2 Adjust R5 15 (Pin-Ad) to modify the left-right side pincushion distortion to meet the
specs of 1.00mm + -0.25mm.
5.7
BACKGROUND BRIGHTNESS SETTING
5.7.1 Change the compatible Signal Generator video signal to a 350 line blank pattern
video signal. Set the Brightness VR (R602) to the maximum position and the
Contrast VR (R613) to a maximum position. (NT-3602 480 LINE)
5.7.2 Adjust the G2 VR until the background raster is just visible and note what color
appears. Now adjust the other 3 colors of the Bias VR's (R938 Red Bias, R937
Green Bias, R936 Blue Bias) to obtain a dark gray raster.
5.7.3
Re-adjust G2 VR and check the brightness within range of 2 + - 0.5FL until the
retrace line is barely visible.
5.8
R.G.B. GAIN SETTING
5.8.1
Change the video signal to a full white Pattern video signal.