Memorex RX 1 Smart Manual de instalación descargar pdf (Pagina 150)

148 | Appendix B - Engineering mode

Then, the CDU will conduct a Keylight test. You may need to dim the lights in the room or

shade the keyboard so that you can see the backlights behind the function and softkeys.

Observe that the keypad backlights go through their full range of illumination. Highlight

OK then press ENT if it varies correctly or Fail if it doesn’t. Next, the CDU will conduct a

Beeper test. Listen that the internal beeper activates for about a second. Highlight OK

then press ENT if it varies correctly or Fail if it doesn’t. Finally, the CDU will conduct an

External Alarm test. Listen that the external alarm activates continuously. Highlight OK

then press ENT if it varies correctly or Fail if it doesn’t.

Upon completion of the above tests, a Test Results screen will be displayed. In addition

to the visual tests which you witnessed, the CDU also performs background tests on the

program memory (FLASH ROM), the real-time Clock, and the Serial (NMEA) Ports. These

tests check about 90% of the CDU. The items which it does not check are the GPS and

Beacon receivers in the antenna.

If one of the background tests fail, you can try clearing the CDU’s memory to see if the

problem will clear. However, when you clear the memory (also known as a Cold Start),

you will erase all waypoints and configuration settings. A cold start sets the CDU back

to factory default settings. It is highly recommended to save the database into a USB

memory stick prior to doing the cold start procedure.

Otherwise, record the failure(s) and contact your dealer or MX MARINE-SIMRAD to

arrange for service or repairs. It is possible, but unlikely, that a cold start will correct

other failures noted during the selftest. MX MARINE-SIMRAD will need the CDU serial

number (from the rear panel) and the Software Version number to help you further.

Press the EDIT key when you are finished viewing the results.

CDU Cold Start - Clearing Memory to Factory Default

A cold start sets the CDU back to factory default settings. Perform this procedure if the

CDU becomes non-responsive, fails one of the self tests described above, or starts acting

very unusually. When you Cold Start the CDU, it will erase all of waypoints, routes and

configuration settings.

To perform the cold start:

Turn the CDU off

1 . There are three methods you can use:

Press the

a On/Off function key and highlight the Yes softkey then press ENT.

This causes a software shut down of the CDU.

Press and hold the

b On/Off function key for up to 5 seconds, this causes a

hardware shut down of the CDU.

Turn power off at the circuit breaker panel feed or power supply which feeds the

CDU. This is the preferred method.

Hold the

2 CLR button down while applying power to the CDU; continue holding the

button until you hear a normal key click for the softkey.

Release the button.

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Memorex RX 1 Smart Manual de instalación Pagina 150

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