88ADJUSTMENTS(7) Focus adjustmentNOTE) Focus VR has already been adjusted when this unit is shipped from the factory.Ask our servicemen if the Focus VR needs to be adjusted.Input SignalCross hatchAdjustmentFocusadjustmentAdjusting PointFocus control (VR1) oflens assembly attachedto the replaced CRT as-sembly and the focusvariable resistorAdjusting Method• Move the lens assembly left and right and optimizethe focus.• Rotate the focus VR and optimize the focus.• Adjust the lens assembly and focus VR repeatedly.NOTE 1: Perform the adjustment below again only af-ter adjusting the blue focus.Turn the blue focus VR counterclockwise andset so that the blue is slightly thick but doesnot stick out (about 10 to 12 mm for crosshatch outermost vertical lines of 40 inches,about 13 to 15 mm for 50-inch lines).Generally the focus VR should be turned byabout 10 degrees.NOTE 2: The adjustment can be performed without re-moving the rear panel by inserting a screw-driver into the hole in the rear panel. The blue(B) hole is marked. (See the diagram below.)Rear panel Adjustment hole (B on left)Rear panel
