19-1
OP27, OP37 Equipment Manual
Release 05/99
Maintenance/Upkeep
Operator Panels OP27 ad OP37 are designed for low-maintenance operation.
Maintenance of the OP is limited to
regular cleaning of the keyboard overlay and screen
changing the backup battery and
replacing the display back-lighting.
Thetable below lists units whichusers can install or replace themselves.
Parts
OP27
OP37
Direct key module (DKM)
4
4
Control Panel Interface
4
4
AT expansion slot and AT cards
–
4
Hard disk
–
4
Floppy disk drive
–
4
A description of fitting the direct key module, the control panel interface, the
AT expansion slot and the AT cards is provided in Chapter 18.
19.1
Cleaning the Screen and Keyboard Overlay
Clean the OP screen and keyboard foil overlay at regular intervals with a damp
cloth. Do not clean the device while it is turned on. IThis ensures that functions
are not triggered inadvertently by coming into contact with the keyboard over-
lay.
Use only water and washing–up liquid to dampen the cloth. Never use aggres-
sive solvents or abrasive cleaning agents.
Scope
Preparation
Cleaning agents
19
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