REMANUFACTURED AMPLIFIERS
What does "remanufactured" mean?
Before arriving at AE Techron for remanufacturing, the 7782 units that become a part of the AE Techron Remanufacturing program have spent their lives in environments that are controlled for dust, humidity and temperature--in hospitals or MRI imaging centers.
Once received, and after initial inspection has been completed, the unit is brought out to production for initial disassembly.
Disassembly starts with the removal of front and side covers.
Next the main circuit board is removed and, since it is not needed, is discarded. It will be replaced with a brand new main circuit board when it is time for reassembly.
Next the heatsink assemblies that hold the output transistors are removed from the chassis.
Once out of the amplifier, each of the 4 heat sink assemblies have their output transistors removed.
With the output transistors removed, circuit boards are scrubbed with a special circuit board cleaner / deoxidization chemical. Each amplifier will end up having all of its 80 output transistors replaced with brand new, graded, latest revision, dual die, proprietary output transistors.
Top side disassembly complete, and with new fans and transistors added, it is now time for this soon-to-be-remanufactured 7782 to leave the production area for the next stop.
At this next stop, the back and bottom of the amplifier assembly receive attention. Here, a technician removes the back panel.
With the back panel removed, the condition of internal wires can be checked and replaced if necessary. Parts that normally wear are replaced, and changes are made to bring the unit up to the latest revision and feature level.
A cart containing many parts including new top and bottom covers, a new pre-tested main circuit board, new rear sub panel, refinished grill, handles, and front skin is brought out and . . .
. . . reassembly can begin.
Pretested sub assemblies are installed.
Once all new, rebuilt or refinished assemblies have been reinstalled, the completed system testing can begin. After this portion of the testing has been completed, its next stop is the burn in area.
Here the newly rebuilt 7782 under goes a comprehensive, computer-controlled, 24-hour burn in. The burn in time is divided into eight 4-hour cycles, alternating between pulsed and continuous power.
This testing is designed to catch infant mortality of individual new parts and is the same burn in process that new AE Techron amplifiers undergo.
With testing complete, it is now time for final inspection.
With all testing and final checks complete, this newly rebuilt 7782 is ready to be packaged and sent to a new user, who can expect many years of trouble-free use from this remanufactured industrial amplifier.
Copyright AE Techron, Inc. 2010-2012 - Formerly Techron - MRI Mouse image courtesy of Aspect MRI - Report site problems to the webmaster.