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KV-32XBR400/36XBR400/36XBR400H/38DRC1/38DRC1C SECTION 3 SET-UP ADJUSTMENTS
The following adjustments should be made when a complete realignment is required or when a new picture tube is installed. These adjustments should be performed with rated power supply voltage unless otherwise noted. Set the controls as follows unless otherwise noted: VIDEO MODE: STANDARD (RESET) Note: Test equipment required: � � � � Color Bar Pattern Generator Degausser DC Power Supply Digital Multimeter Perform the adjustments in order as follows: 1. Beam Landing 2. Convergence 3. Focus 4. Screen (G2) 5. White Balance
3-1. BEAM LANDING
Before beginning adjustment procedure:
6. Move the deflection yoke forward and adjust so that the entire screen becomes green.
� Face the picture tube in East or West direction to reduce the
influence of geomagnetism. NOTE: Do not use hand degausser because it magnetizes CRT.
1. Input white pattern from pattern generator. Set the PICTURE control to maximum and BRIGHTNESS control to standard. 2. Perform Focus, G2 and White Balance adjustments. 3. Loosen the deflection yoke mounting screw and set the purity control to the center as shown below. 7. Switch over the raster signal to red and blue and confirm the condition. 8. When the position of the deflection yoke is determined, tighten it with the deflection yoke mounting screw.
Purity Control
9. If landing at the corner is not right, adjust by using the disk magnets.
4. Input a green pattern from the pattern generator. 5. Move the deflection yoke backwards and adjust the purity control so that green is in the center and red and blue are even on both sides.
