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Installation
A. REMOVING A KEYBOARD OVERLAY
B. INSTALLING BAUDRATE OVERLAY
C. INSTALLING KEYBOARD OVERLAY
Figure 7-14. Installing Keyboard Overlays
7-16
AVOID touching the circuit leads.
Handle by the plastic package only.
ENSURE that the circuit, work surface
(table, desk, etc.) and PCA are all at the
same ground potential. This can be done
by touching the foam pad to the PCA and
then touch the foam pad, circuit, and
PCA to the work surface.
1. ()
Perform complete terminal SELF-TEST (refer to
"Self-Test") to verify proper terminal operation
before installing the accessory.
2. ()
Turn off AC PUWER switch at rear of terminal
and disconnect power cord.
3. (
Open terminal (refer to "Opening the Terminal").
4. () Locate the Control Memory PCA, part no.
02640-60136 (see figure 7-2).
5. () Insert connector removal tool under Top Plane
Assembly as shown in figure 7-7.
6. ()
Remove the Control Memory PCA.
7. () Carefully unpack and inventory 13261A acces-
sory parts.
8. ()
Carefully insert the appropriate ROM contained
in accessory package into ROM socket 10 through
16 that ROM pin 1 is at upper right corner of each
socket (see figure 7-15).
9. () Reinstall Control Memory PCA into backplane
assembly connector from which it was removed.
10. ()
Reinstall Top Plane Assembly on Processor and
Control Memory PCAs' top connectors.
11. ()
Perform terminal SELF-TEST to verify proper
terminal operations after installing accessory.
Figure 7-15. 13261A Device Support Firmware IC
Locations on Control Memory PCA
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