10-22-2013, 01:53 PM
Let's do more mechanics before we wind down. Sticky push buttons is a common problem with these units. Usually, it's just a matter of cleaning and some lubrication. First, I blow out the chassis with some air just to remove the dust and loose debris. Then I pull all of the push buttons out to the set position. Then I lubricate the moving parts on the push button shafts with silicone spray. I start from the outside just behind the push buttons. Then I do the area on the inside where there are more moving/sliding parts on shaft. It's hard to show in the pics but it is the areas that are adjacent to the "round cylinders" in the center. I also spray some silicone on the metal shaft where the large tuning gear slides. Binding in this area also causes sluggish push buttons. Then I set some stations to make sure that function is working properly. Then I "exercise" the push buttons to make sure all is working smoothly.
Craig R.
Craig R.