Replacing The Main Pcb Assembly; Adding Ferrite To The Power Supply - GE MAC 600 SPY Service Manual

Replacing the Main PCB Assembly

Adding Ferrite to the Power Supply

Revision G
Maintenance: Preparing System for FRU Replacement
NOTE
If possible, save the current settings before replacing the PCB
assembly. For information about saving system setup, see
Setup" on page 4-30.
If you are replacing an old PWA with a new PWA, follow these steps to
add ferrite to the power supply.
1. Switch off the mains supply to the unit.
2. Disconnect the ACDC adapter from the mains power cord.
3. Disconnect the ACDC adapter cable from the MAC600.
4. Unlock the ferrite (74271131) present in the FRU kit using the key
(2055233-001) shown in the following figure.
5. Put a turn inside the f errite core near the tip of the ACDC adapter
cable that connects the unit, as shown.
TM
MAC 600
2047426-002
"Saving
4-17