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Hand-held Monitor User’s Guide – June 1994
GFK-0121E
Changing the PROM
New features can be added to upgrade a Hand-held Monitor by replacing its PROM as
described below.
Caution
To prevent possible damage to the Hand-held Monitor, this operation should be
performed in an area equipped with suitable electrostatic discharge protection.
1. If the HHM is connected to AC power, disconnect it.
2. Remove the HHM battery pack as described on the previous page.
3. On the front of the Hand-held Monitor, remove the two Phillips-head screws located
near the 7 and HOME keys.
4. Gently raise the keyboard up from the bottom to release the lip between the
keyboard and the display.
5. Once this lip is free, open the keyboard to the right, as illustrated below. It is not
necessary to remove the ribbon connector.
GENIUS
GE Fanuc
Hand Held Monitor
mon
cfg
Install PROM
with notch to
right as shown
6. Remove the old PROM. If you don’t have a PROM extraction tool, a small screwdriv-
er can be used instead, carefully working from side to side.