Mitel 3000 - Replacing a Faulty Module Mdf; Replacing Faulty Pcbs

Mitel 3000
Installation & Maintenance Manual
49
Replacing a faulty module MDF
To replace a faulty MDF of an Expansion or Broadband Module, the procedure is:
1. Remove the cabling from the MDF, ensuring the cables are correctly tagged so they can be readily
reinstalled.
2. If a battery is installed, turn off the BBU switch to disconnect the battery.
3. Power the system down by unplugging it at the main AC power source.
4. Remove the module and any CO Line Modules, if appropriate.
5. Unlock the MDF module by pulling the locking bar down with a screwdriver.
6. Remove the MDF.
7. Reverse the procedure to install a new MDF.