Lexicon
5-17
When you have made a selection, the >YES button must be pressed in order to enter the menu item. To
exit the selection, press the NO< button.
The following describes the Utilities and Tools.
Exit Diags
This utility will provide a way to exit the Diagnostics without powering off the unit.
At the Top Level Tests menu, turn the Encoder until the display reads the following:
Diags: Top Level
Exit Diags >
Pressing the STORE button at this time will exit the diagnostic mode and put the MPX G2 into normal
operating mode.
Scope Loops
The Scope Loops are tools that will help the technician troubleshoot a problem.
At the Top Level Tests menu, turn the Encoder until the display reads the following:
Diags: Top Level
Scope Loops >
The Scope Loops Menu has a sub Menu of four loops for the purpose of troubleshooting the MPX G2
Below is the list of those Loops
Lexichip Scope
Z80-Lex Wr Tst
Display Read
Display Write
Pressing the >YES button at this time will take you to the top of the Scope Loop Selection. See example
below.
Diags:Scope Loop
< Lexichip Scope
Turning the Encoder CW at this time will allow you to select the one of the remaining Loop tests.
Turning the ENCODER CCW will display the previous scope loop. To execute a scope loop, press the
STORE button. The loop will run one cycle. To run a scope loop 1-254 times or infinite, press the OPTIONS
button to access the Repeat Test utility and select the desired number of repeats by using the encoder.
To exit the Scope Loop Menu and enter the Top Level Menu, press the NO< button and the display will
read the following:
Diags: Top Level
Scope Loops >
Software Err Log
This utility records software errors and is used specifically for the programmers. It records up to 10 errors.
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