The GE ARCNET No-LAN LM Gas Turbine Control Board DS200PANAH2ADD features one 40-pin connector, 10 jumpers, and one 64-pin connector. The GE ARCNET No-LAN LM Gas Turbine Control Board DS200PANAH2ADD also has two RF FET semiconductors to amplify and adjust the signal. The adjustment made on the RF FETs are made by turning a small slotted knob on one side of the component. The knob has numbered indicators so you can adjust the component to a preselected adjustment. This is especially useful when you replace the DS200PANAH2ADD.
Before you remove the defective board note the settings of the RF FET transistor and write down the number setting. Each RF FET has a unique identifier printed on the board. For each RF FET record the identifier printed on the board and also the numbered setting for the adjustment. Inspect the jumpers on the defective board and note how they are set. First, you must wear a wrist strap that is connected on one end to a metal structure such as a support post or a leg on a desk. The other end is wrapped around the arm of the servicer.
The connectors are all assigned a unique number that is printed on the board and you can use it to identify the connectors. Obtain small strips of paper and for each cable attached to the board, write down the identifier for the connector it is plugged in to. Attach the strip of paper to the cable so that you can easily know where to connect the cable on the replacement board.