Comtech EF Data DD240XR Rev Е - Manual (Page 104)

DD240XR High-Speed Digital Demodulator Maintenance
MN-DD240XR – Rev. E 6-1
Maintenance
6
6.0 Periodic Maintenance
The DD240XR contains a Lithium Battery. DANGER OF EXPLOSION exists
if the battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used
batteries in accordance with manufacturers instructions
The DD240XR
modulator requires no periodic field maintenance procedures. Should a unit be
suspected of a defect in field operations after all interface signals are verified, the correct
procedure is to replace the unit with another known working DD240XR. If this does not cure the
problem, wiring or power should be suspect.
There is no external fuse on the DD240XR. The fuse is located on the power supply assembly
inside the case, and replacement is not intended in the field.