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These tests return a PASS/FAIL condition. All six amber front panel LEDs will
turn off if the test passes. Press [j) to exit the test. If any of the six LEDs
remain on, the test has failed.
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the A19 GSP board. The CPU writes all zeros, all ones, and then a
the CPU repeats the walking 1 pattern until m is pressed.
DRAM cell. Tests the DRAM on A19 by writing a test pattern to the
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DRAM and then verifying that it can be read back.
Main VI&AM. Tests the VRAM by writing ah zeros to one location in
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each bank and then writing all ones to one location in each bank.
Finally a walking one pattern is written to one location in each bank.
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write and read shift register transfers. It also checks the video signals
LHSYNC, LVSYNC, and LBLANK to verify that they are active and
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verifies their functionality.
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high.
Service Key Menus and Error Messages
verifies the analyzer system operation by examining
the contents of the measurement calibration arrays.
The procedure is in the "System Verification and
Performance Tests" chapter. Information about the
calibration arrays is provided in the "Error Terms"
chapter.
generates and stores the correction constants.
For more information, refer to the "Adjustments"
chapter.
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Table of Contents
Troubleshooting
