Receiver Cold Start - Clearing Memory To Factory Default - Leica MX400 Operating Instructions Manual

Appendix C - Engineering Mode
(Baseband), the program memory (FLASH ROM), the real-time
Clock, and the digital beacon receiver (Beacon). These tests check
about 90% of the receiver. The items which it does not check are:
the input and output ports, the analog GPS and Beacon receivers,
and the antenna preamplifiers.
If one of the background tests fail, you can try clearing the
receiver'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 of your waypoints and configuration settings. A cold start sets
the receiver back to factory default settings.
Otherwise, record the failure(s) and contact your dealer or Leica to
arrange for service or repairs. It is possible, but unlikely, that a cold
start will correct other failures noted during the selftest. Leica will
need the receiver serial number (from the rear panel), Software
Version number, and Beacon Rec. Rev. number to help you further.
Press the E key when you are finished viewing the results.

Receiver Cold Start - Clearing Memory To Factory Default

When you Cold Start the receiver, you will erase all of your
waypoints and configuration settings. A cold start sets the receiver
back to factory default settings. Perform this procedure if the
receiver becomes non-responsive, fails one of the self tests de-
scribed above, or starts acting very unusual. An example of unusual
symptoms would be that you pressed the E function key in a screen
that you can normally edit (i.e. a screen in WPT). You observe the
softkeys to be activated with normal choices, and before you can
make your choice, the softkeys disappear. This might happen if the
Random Access Memory (RAM) had somehow become corrupted,
as might be the case when the memory backup battery starts to fail.
This portion of memory is not tested during the self test.
To perform the cold start:
Turn the receiver off. There are three methods you can use: 1)
press the On/Off function key and select the Yes softkey,
this causes a software shut down of the receiver; 2) press
and hold the On/Off function key for up to 5 seconds, this
causes a hardware shut down of the receiver; 3) turn power
off at the circuit breaker panel feed or power supply which
feeds the receiver.
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Operator's Manual
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