Fine adjustments are stored in the Projector. Pressing the Fine Adjustment SW (Convergence Adjustment) results in entering the Fine Adjustment mode, and this may cause the stored fine adjustment to be changed. During work other than for adjustment, should you touch the Fine Adjustment SW by mistake, immediately turn the power off by using the main SW and then turn it back on again. If any distortion or color deviation is found in the test mode and adjustments are needed, use the specified Adjustment knob, or perform the adjustment by remote control. In relation to this type of Projector, there are 2 different manufacturers, i. e., Mitsubishi and Toshiba. The adjustment method differs depending on the specific maker. To watch the Adjustment Knobs, remove the PTV Lid from the front of the PTV. In the case of Mitsubishi Projector, a cover is installed to the Adjustment Knobs. Remove the Cover.