User's Manual

A-28
A.3 MAINTENANCE
This part of the appendix provides information and procedures that are different for
the hot-standby shelf and the CommPak indoor shelf.
A.3.1 Warnings and Cautions
All Warnings and Cautions outlined in the Maintenance section of the main book apply
while operating, performance testing, troubleshooting, or repairing the MDR-8000
series radio.
A.3.2 Troubleshooting
Refer to the Maintenance section in the main book.
A.3.3 Module Replacement
Before replacing any module refer to Table A-4 to determine the actions, other than
physical replacement, required. If the module has any options (switches, subboards, etc.),
refer to the removed module so that the replacement module can be set up the same way.
Table A-4 Module Replacement Matrix
MODULE/UNIT
REMOVAL/REPLACEMENT
PROCEDURE
CHECKS/ADJUSTMENTS
PROCEDURE
AE-27AF Relay Interface No Special Procedure Required None Required
AE-37Y Controller Chart 2 (Maintenance Section in
main book)
None Required
CE-16BB Power Supply Chart 1 (Maintenance Section in
main book)
None Required
Fuse No Special Procedure Required.
Refer to Operations Section in
main book for location.
DX-35M DS1/E1 I/O Interface Chart 3 (Maintenance Section in
main book)
No Special Procedure Required
DX-35N DS3 I/O Interface Chart 3 (Maintenance Section in
main book)
Chart 10 and 11 in Appendix E
on attached CD
UD-35( ) Transmitter Chart 4 (Maintenance Section in
main book)
Applicable Charts 1 through 5
in Appendix E on attached CD
Crystal Oscillator Subboard Chart 4 (Maintenance Section in
main book)
Capacity Key Chart 5 (Maintenance Section in
main book)
UD-51( ) Power Amplifier Paragraph A.4.1 (This Section) Applicable Charts 6 through 8
in Appendix E on attached CD
DS1/E1 LBO Paragraph A.4.2 (This Section) No Special Procedure Required
DS3 LBO Paragraph A.4.3 (This Section) No Special Procedure Required
OC3 AUX Intfc Paragraph A.4.4 (This Section) No Special Procedure Required
(1)
If ATPC is in use, it must be provisioned disabled or locked high before removing controller.