Leica apMK12, Operation & Installation Manual

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144 Version 1.5
Operation & Installation Manual Appendix C - Engineering Mode
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 de-
fault 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 CDU serial number (from the rear panel) and the
Software
Version number to help you further.
Press the E key when you are finished viewing the results.
CDU Cold Start - Clearing Memory to Factory Default
When you Cold Start the CDU, you will erase all of your waypoints
and configuration settings. A cold start sets the CDU back to factory
default settings. Perform this procedure if the CDU becomes non-re-
sponsive, fails one of the self tests described above, or starts acting
very unusually.
To perform the cold start:
1. Turn the CDU off . There are three methods you can use:
A) Press the On/Off function key and select the Yes softkey,
this causes a software shut down of the CDU.
B) Press and hold the On/Off function key for up to 5 sec-
onds, this causes a hardware shut down of the CDU.
C) Turn power off at the circuit breaker panel feed or power
supply which feeds the CDU.
2. Hold the right most softkey down while applying power to the
CDU; continue holding the softkey until you hear a normal
key click for the softkey.
3. Release the softkey.
4. Press the POS function key. If the position reads N 00
°
00.0000,
W 000
°
00.0000, then the CDU was properly reset. If it does
not read this, try the procedure again.
A common source of memory corruption is an aged Lithium memory
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