EC-4043  (650-0807)           Care and Maintenance     Faxback Doc. # 3444

The EC-4043 Advanced Scientific Calculator is an example of superior
design and craftsmanship.  The following suggestions will help you care
for the EC-4043 so you can enjoy it for years.

  Keep the EC-4043 dry.  If it gets wet, wipe it dry immediately.  Liquids
  can contain minerals that corrode the electronic circuits.

  Handle the EC-4043 gently and carefully.  Dropping it can damage circuit
  boards and cases and can cause the calculator to work improperly.

  Use and store the EC-4043 only in normal temperature environments.
  Temperature extremes can shorten the life of electronic devices and
  distort or melt plastic parts.

  Keep the EC-4043 away from dust and dirt, which can cause premature wear
  of parts.

  Wipe the EC-4043 with a damp cloth occasionally to keep it looking new.
  Do not use harsh chemicals, cleaning solvents, or strong detergents to
  clean the EC-4043.

  Do not bend or twist the EC-4043.  Carrying the unit in a pants can
  subject it to abnormal bending and twisting.

  Never try to take the EC-4043 part.

  Do not press the keys of the EC-4043 with a pen, pencil, or other sharp
  object.

  Modifying or tampering with the EC-4043's internal components can cause
  a malfunction and might invalidate its warranty.  If the EC-4043 is not
  performing as it should, take it to your local Radio Shack store for
  assistance.

(LB/all-12/05/94)