Installation and Operating Instructions TRS 33xx
10. Correct use
Tap the key foil lightly with fingertips. Never strike or apply strong pressure to touch panel.
The use of hard or sharp objects, including fingernails, rings, etc. can cause scratches and damage to touch
To clean: Wipe touch panel with soft lint-free dry cloth, or one that has been lightly dampened with water.
The use of caustic liquids such as benzene, thinners, alcohol, solvents, or abrasive cleaners of any kind will
lead to surface or screen deterioration and damage.