The General Electric LAN Power Supply Circuit Board DS200UPLAG1ADA contains two 26-pin connectors, 1 fuse, and 1 toggle switch. The board also has one reset button and 1 8-pin connector. The reset button on the board temporarily removes power from the board and then restarts it without having to restart the drive or any other boards. If the board appears to be functioning erratically or exhibiting other irregularities, you can press the reset button.
Care must be taken because power is present in the drive when you press the reset button. Only a trained servicer should press the reset button. First, open the board cabinet door and locate the board. Make sure you have a good line of site of all the boards in the cabinet and reach inside the cabinet. Be sure to not touch any components in the cabinet because of the high voltage present in the drive. Any component, solder point, or cable might deliver an electric shock or burn. Use one finger to press only the reset button and avoid touching other components on the board. Press the button for a few seconds, then release it.
This is a useful procedure for troubleshooting the board. If you suspect that the board continues to function improperly, remove all power to the drive and remove the board. Use a screwdriver to remove the four screws from the drive and move the board to a static protective surface. Locate the test points on the board and test the circuits.