User manual

Repair and Replacement Procedures
7-20 ProMaster 2500 User Manual
Replacing the PE
Power Supply
If the programming electronics power supply fails, follow the steps below
to replace it.
1. Turn off the 2500 and remove the power cord.
2. Disconnect the two cable connectors.
3. Remove the four 1/4-inch hex nuts at the corners of the assembly.
4. Carefully lift out the PE power supply assembly.
5. Install the new PE power supply and reconnect the cables.
Replacing the Toroid
Transformer
If the Toroid transformer fails, follow the steps below to replace it.
1. Turn off the 2500 and remove the power cord.
2. Disconnect the two cable connectors J1 and J3.
3. Remove the single 3/16-inch hex mounting screw.
4. The Toroid transformer is heavy; lift it out carefully.
5. Install the new Toroid transformer and reconnect the cables.
Replacing the Toroid
PCB
If the Toroid PCB fails, follow the steps below to replace it.
1. Turn off the 2500 and remove the power cord.
2. Disconnect the four cables in connectors J-1 through J-4.
3. Remove the four 1/4-inch hex nuts at the corners of the board.
4. Hold the edges of the board, do not touch the capacitors, and lift the
board straight up. You may damage the capacitors if you apply
pressure to them.
5. Install the new Toroid PCB power supply board and reconnect the
cables.
6. Check the voltage selection switch.
Replacing the
Controller Power
Supply
If the controller power supply fails, follow the steps below to replace it.
1. Turn off the 2500 and remove the power cord.
2. Disconnect the two cable connectors.
3. Remove the four 1/4-inch hex nuts at the corners of the board.
4. Carefully lift out the controller power supply board.
5. Install the new controller power supply and reconnect the cables.
6. Check the voltage selection jumper.