User's Manual

U
SER
´
S MANUAL FOR BAND SELECTIVE REPEATERS
MR
X
03P
User'sManual.doc Id.-No.:154999 Page 43 22-Jan-01
8. MAINTENANCE
8.1. GENERAL
∗ Note The repeater does not require preventative maintenance measures.
It is only recommended to replace the RAM/RTC battery and the whole battery
backup module 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 by replacing modules only.
Soldering on printed circuit boards shall be avoided. In order to sustain warranty, take
care not to damage unintentionally the seals on the modules. To open the housing,
the upper screws have to be removed first and than the lower screws (see installation
drawing chapter 7.1). Proceed in reverse order to close the housing.
The spare parts list, consequently, contains only units which can be replaced without
tuning or complex soldering work. Those units are all MIKOM modules as well as
internal and external cables.
∗ Note Defect parts should only be replaced by original parts from
MIKOM. All interventions inside the housing are at one’s own risk.
∗ Note During maintenance ensure that the repeater has been
disconnected from mains and the battery backup module has been
switched off.