Canon EOS 20D Secondary Control Board (C-Board 010) Replacement Jul 13th 2020 Canon EOS 20D Secondary Control Board (C-Board 010) Replacement 图片1 图片2 Step 1 Remove The Eyepiece Cap Pull up on both sides of the the eyepiece cap. It should come off with little pressure. jQuery点击切换图片展示 tab切换展示 Step 2 Remove screws from under the eyepiece cap Remove the two screws hidden under the viewfinder eyepiece cap. jQuery点击切换图片展示 tab切换展示 图片1 图片2 图片3 Step 3 Remove hidden screw and other visible screw Peel off the rubber grip on the back by grasping one of the corners and pulling out. Once removed, a hidden screw is revealed. Remove both visible screws from the rear of the camera.