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| Malfunction No Touch Effect |
| Indicator Status Indicator is not lighting |
| Estimation 1. Controller is possibly damaged |
| Trouble Analysis 1：Is the power baffle of the serial cable connected well with the power connector of the computer? 2：Is the power of +12V supplied by the computer running well? |
| Solutions 1：Connect the serial cable with the power supply baffle 2：Test with another controller 3：Check the connection of the circuitry especially the connection between baffle and the bnc connector inside the computer to make sure whether the power supply of the host is ok or not. |