Keyboard Cleaning - NEC POWERMATE PROFESSIONAL 9000 Service Manual

Keyboard Cleaning

As necessary, inspect and clean the inside of the keyboard as follows.
1. Remove the twelve screws holding the keyboard enclosure together (see
Figure 4-1).
2. Separate the two halves of the enclosure.
Clean the enclosure and keys with a damp cloth. A small, soft-bristle brush may be
3.
used to clean between the keys. Do not wet or dampen the keyboard's printed
circuit board (PCB). If the PCB accidentally gets wet, thoroughly dry it before
reattaching the keyboard to the system unit.
CAUTION: The keyboard and cable together
are considered a whole-unit, field-replaceable
assembly. Therefore, disassembly of the
keyboard is necessary only when cleaning the
inside.
Disassembly of the keyboard should be done only
by qualified service technicians.
Figure 4-1 Removing the Keyboard Enclosure
Maintenance and Troubleshooting 4-7