Chapter 6. Maintenance And Troubleshooting; Periodic Maintenance; Battery Replacement; Clock Adjustment - Comtech EF Data DMD-2050E Installation And Operation Manual

6.1

Periodic Maintenance

6.1.1 Battery Replacement

WARNING:
contains a Lithium Battery. Replace it with an equivalent battery that is specified by
the manufacturer. Dispose of used batteries in compliance with local and national
regulations.

6.1.2 Clock Adjustment

Adjust the clock only when an internal clock source is not accurate. Adjust internal VCO speed
from the front panel.

6.1.3 Fuse Replacement

CAUTION: Always replace the fuses with the correct fuse type and rating. Use correct
fuses to help prevent damage to the equipment.
A DMD2050E with a front panel switch has an external fuse on the rear of the unit, inside the
power connector, behind the small plastic cover.
A DMD2050E with a rear panel power switch does not have an external fuse.
MN-DMD2050E Revision 2
Chapter 6. Maintenance and
DANGER OF EXPLOSION
Troubleshooting
if the battery is incorrectly replaced. The unit
6–1