8.1.6 Display Unblank Test
Description This test is performed to determine whether all pixels of the LC display
can be switched on. After starting this test the LC-display should show
grey blocks with all pixels in place.
Function test
• Switch on all pixels of the LC display using the following remote
command:
rus:service:select:function:test 2
• Interrogate test 2:
rus:service:select:function:test?
The second command (interrogation command) is used to deter-
mine whether the test was successfully completed. The interroga-
tion command will keep on returning 65535, until the user either
presses the ENTER – key, or any other key on the unit.
ENTER:
• The display shows the following message:
User Input:
Test: OK!
The interrogation command returns 0.
Any other key:
• The display shows the following message:
User Input:
Test: FAILED!
The interrogation command returns 1.
Fault rectification
• If an error occurs:
• Replace the keyboard as described in chapter 9 or
• replace the processor board as described in chapter 9.
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