Got a board in for repair that comes up with divider errors on tests 24 and 25 as shown:
There are two ways to identify the test numbers: count the missing (passing) lines 21, 22, 23 that don't appear above the two lines shown, or go by the NNNN FFNN which are the option switch settings to run the test individually per the Troubleshooting Guide.
NNNN FFNN means on, on, on, on, off, off, on, on
8765 4321 switches counting down for some reason. So that's test 24 shown on page 14 of the TS Guide.
It test for shorted bits in the divisor, and is supposed to take 2AAA and divide it by 2AAA to come up with 4000 which is what SW uses for the number one.
Test 25 does the same calculation using 5555/5555 to also get 4000.
There are two ways to identify the test numbers: count the missing (passing) lines 21, 22, 23 that don't appear above the two lines shown, or go by the NNNN FFNN which are the option switch settings to run the test individually per the Troubleshooting Guide.
NNNN FFNN means on, on, on, on, off, off, on, on
8765 4321 switches counting down for some reason. So that's test 24 shown on page 14 of the TS Guide.
It test for shorted bits in the divisor, and is supposed to take 2AAA and divide it by 2AAA to come up with 4000 which is what SW uses for the number one.
Test 25 does the same calculation using 5555/5555 to also get 4000.
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