Technical data

5-1
Chapter 5
97060A Diagnostics
Self Test
The built-in self test starts on powerup of the 97060A. The self test may be run with or without any
other device connected to the 97060A.
If no errors are found, the green READY LED on the front
panel lights after several seconds
and stays on after the self test is complete. If a monitor is
connected to the 97060A, a small star pattern is displayed on the CRT after the READY LED
lights.
The self test DOES:
• Detect more than 90% of IC failures.
• Check data bus counter.
• Check bit slice register increment.
• Check loop counter.
• Check 110 loopback.
• Check scratchpad RAM, load with address.
• Test memory; write all Is, Os, Is, Os; read back.
• Write mask, write data, check with read back.
• Test vector drawing followed by signature read.
The self test
DOES NOT:
• Detect 110 buffer errors.
• Detect some DAC errors.
• Detect internal RGB cable failures.
• Detect rear panel connector failures.