1. Use suitable screwdrivers that fit comfortably in 
    driver slot.
  (1) Recommended screwdriver for manual adjustment
          MURATA: KMDR010
  (2) Recommended screwdriver bit for automatic 
       adjustment
          MURATA: KMBT010
2. When adjusting with a screwdriver, do not apply 
    excessive force (preferably 1.0 N [Ref: 100gf] max.) 
    to minimize capacitance drift. If excessive force 
    is applied to the screwdriver slot, it may cause 
    deformation of the products.
3. Do not apply adhesive, lock paints, or any other 
    substances to the trimmer capacitor to secure the 
    rotor position. They may cause corrosion or 
    electrical contact problems.