Performance Verification
All Non-Interactive Checks
All Non-Interactive Checks
Ensure the integrity of the A13 Acquisition Assembly, the A5 Display Adapter Assembly (El
Mirage), and the A6 Scope Interface Assembly (Tombstone) by running built-in self tests.
Some checks may return a failure; however, this does not necessarily indicate that the DCA is
broken or giving bad measurement data.
Manual Procedure
1 Touch/click Help, About 86100..., and press Local 5 times. This allows access to the service
mode.
2 Touch/click Utilities, Service, Self Test.
3 Pull down the menu drop down and select All Non-interactive
4 Click on "Service Extensions" and then click Start Test.
5 This test runs automatically and reports the status of each test. Wait for the test to complete.
6 Look at test results for all the Non-Interactive tests.
a Non-Volatile SRAM: must pass.
b Video RAM, Video SRAM, and Tri-state Register: cosmetic only. Not a hard failure.
N O T E
Video is tested on the A6 Scope Interface assembly (Acq Int Brd) interfaces between the acquired
data and the display. Problems with these components can only cause cosmetic problems with the
display. They do not affect the measurement results. Perform a visual display check to test for
cosmetic problems.
c Timer: must pass.
d Video Control Register: must pass.
e Test Sequencer Memory: must pass.
f Look Thru Memory: Failures on memory pages 4 through 7 can be ignored.
N O T E
Look Thru Memory exists on the A13 Acquisition assembly. Look Thru memory provides a
mapping between A/D quantization levels and input power levels to calibrate the linearity of the
input channel. The self test writes known data patterns to every memory address and verifies the
correct value is there. There are 8 pages of Look Thru Memory and the DCA uses 4 of them. The
self test tests all 8 pages. Failures on pages 4-7 can be ignored.
g PLDs: must pass.
h Acquisition Cycle: must pass
i PLD (Cnt Brd): must pass
j Sequencer Memory (Cnt Brd): must pass
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