10.5 Self-testThe unit has a built in self-test to aid fault diagnosis. Theresulting failures and / or fault codes should be used whencontacting Raymarine customer support.Starting self-testTo access the self-test mode follow the steps blow.During normal operation:1. Press the Display (Power) and Tack button simultaneouslyfor 4 seconds, until the unit beeps.2. When the unit beeps immediately press the VMG and Tackbutton simultaneously.Self-test stage 1 will commence.3. At the end of each test press the Display (Power) and True /App button simultaneously to progress to the next stage.Self-test stagesThe self-test comprises of the following stagesSelf-test stage 1When entering Self-test stage 1, the unit beeps and the displayshows St followed by t1.Self-test stage 1 will perform the following tests:• SeaTalk / SeaTalkng self-test, which checks the receive andtransmit circuits.• EEPROM test (read and write).If the tests are satisfactory, P is shown on the display.If the tests are not satisfactory, the following failure codes maybe generated:Fault codeF01F02Self-test stage 2When entering Self-test stage 2, the unit beeps and the displayshows t 2, for 1 second.Self-test stage 2 will perform the following tests:• Backlighting test, which cycles between on and off everysecond.• Any button press sounds a beep.• Display test, which tests the LCD segments in the followingsequence, changing once per second:D4491-21 2 3D4491-3While the test is progressing, press each of the display buttonsand check that the buzzer sounds as each button is pressed.The table below shows possible problems that may beencountered:FailureNo illumination.Button illumination failure.Degraded dial illuminationNo beep when button pressed.LCD segment(s) missing completely.Faint LCD segment(s).Pointer not rotating or erratic movementSelf-test stage 3When entering Self-test stage 3, the unit beeps and the displayshows t 3, for 1 second.Self-test stage 3 will perform pointer offset and corrections.Pressing the Display (Power) button will rotate the pointerclockwise to align with the major graduations.If the pointer is misaligned use the VMG (anti-clockwise) andTack (clockwise) buttons to manually adjust the pointer offsetuntil correct alignment is obtained.Self-test stage 4A known good transducer must be connected for Self-test stage4, and the vessel must be underway at sufficient speed for thetests to be performed.When entering Self-test stage 4, the unit beeps and the displayshows t 4, for 1 second.Self-test stage 4 will perform a transducer testIf the test is satisfactory then P is shown on the display.If the test is not satisfactory then a fail code will be shown onthe display:Fault code FailureF5 RotavectaF3 Wind vaneF4 AnnemometerTo exit self-test stage 4 and save pointer offset corrections, pressthe Display (Power) and True / App buttons simultaneouslyfor 2 seconds.To exit self-test stage 4 without saving pointer offsetcorrections, press the Display (Power) and True / App buttonssimultaneously.50 i60