Rohde & Schwarz NGMO1 - Display Blank Test

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Repair
8.1.5 Display Blank Test
Description This test is performed to determine whether all pixels of the LC display
can be switched off. After initiating the test the LC display should not
show any pixels.
Function test
• Switch off all pixels of the LC display using the following remote
command:
rus:service:select:function:test 1
• Interrogate test 1:
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.
8-6 3.00 / 05-2014