Andrew Wireless Innovations Group RPT-MR703P User Manual

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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.