Andrew Wireless Innovations Group RPT-MOR701 User Manual

Page of 79
User’s manual for Remote Unit MOR701B Power
M0069A0A.doc
Id.-No 151154
Page 57
23-June-99
Maintenance
9.1 General
Note: 
The Repeater does not require preventative maintenance measures.
It is only recommended to replace the RAM/RTC battery
after three years usage as a prophylactic measure. The
nominal lifetime of these batteries is five years under
normal environmental conditions.
In the event of a malfunction it is advantageous to check
the status of the antenna systems as well as the continuity
of the entire cabling including connectors, before replacing
the modules.
Maintenance on the Repeater shall be performed only by
replacing modules. Soldering on printed circuit boards
shall be avoided. In order to sustain warranty take care not
to damage unintentionally the seals on the modules.
The spare part list, consequently, contains only units,
which can be replaced without tuning or complex
soldering work.
figure 9-1 Top view of the Repeater
F
 
Note: 
Defect parts should only be replaced by original parts from MIKOM.
All interventions inside the housing are at one’s own risk.
During maintenance ensure that the Repeater has been disconnected from
mains.
Open the lock at the connector panel and remove the cover plate. To open the housing use a
Torx key and unscrew the four Torx screws.
9.2 Replacement of the fuses (mains)
The mains cable is protected with two fuses F1 and F2 8A type MT. They are accessible
inside of the Repeater at the fuse terminal on the right-hand side. Open the screw plug for the
fuse and take out the fuse.
Note: 
Use only fuses of the same type and the same rating when replacing!
See figure 9-2 Fuse terminal for position of the 8A fuses.