SIS-1500 Seafloor Imaging System 5-17SECTION 5 Maintenance and Troubleshooting System TroubleshootingDuring the Rub Test thereis no display in one or bothof the sonar displays.The Receiver board or theDigitizer board is notfunctioning.Click Diagnostics in the SonarControls box, and then selectthe Diag Mode check box.Select Chirp Pattern (Sonar)from the Diag Modedrop-down list box, and thenclick Accept. The sonardisplays should look similar tothose shown in Figure 3-18on page 3-28. If there is nodisplay, check the Receiverboard. Replace the board if ithas failed.If there still is no display,check the Digitizer board.Replace the board if it hasfailed.During the Rub Test thereis no display in one or bothof the sonar displays.(cont.)One or both of the transducerarray cables are faulty.Refer to Cable Checks onpage 5-19 and check thecable from the electronicshousing to the transducerarrays.One or both of the transducerarrays are not functioning.Refer to Transducer Checkson page 5-19 and check thetransducer arrays.Pitch, roll and heading dataare not present.The pitch, roll and headingsensors are not functioning.Check all the wiring to thesensors.Table 5-4 Operation ProblemsSymptom Possible Cause Corrective ActionNavigation data are notpresent in the Parametersdisplay.The navigation parametersettings are not configuredproperly.Refer to Configuring theNavigation ParameterSettings on page 3-19 andconfigure the navigationparameters.Pitch, roll and heading dataare not present in theParameters display.The display parametersettings are not configuredproperly.Refer to Configuring theDisplay Parameter Settingson page 3-22 and configurethe display parameters.Table 5-3 Predeployment Checks ProblemsSymptom Possible Cause Corrective Action
