Tools Required:
•
Number 2 Phillips Screwdriver
•
1/4-inch Hex Nutdriver
Material Required:
•
3-inch x 3/32-inch Cable Ties
NOTICE
If a history of the configuration changes that were made at the time of initial
TLS installation is not available, and if the menu system is still operational,
enter the
Configuration
menu. Record all of the custom configuration set-
tings, in all of the sub-menus, except for the
Log
and
Emulation
sub-menus.
This custom configuration information must be re–entered after the new Ex-
ecutive board is installed (Section 7.14.2).
1.
Turn off the TLS power and remove the power cord.
2.
Use a number 2 Phillips screwdriver to remove all six Rear Service Panel mount-
ing screws, then remove the Rear Service Panel (Figure 7-30).
Mounting
Screws (6)
Rear Service Panel
Figure 7-30 View of Rear Service Panel
3.
Disconnect all of the cable connectors from the Executive PCBA. (There are at
least 7 cables. The Carosl (Carousel), RS485A, RS485B, RS485I, SERLA, SERLB
and Serial cables are model-dependent/optional cables.)
7-46
Field–Replaceable Units (FRUs)
501380 Rev. B
