HP HP-97 - Page 75

HP-97
Component-Level Maintenance
Table 4-6. IC Replacement, Error Display
DISPLAYED VALUE** IC REPLACEMENT"*
=5 5,0,3
—4 2,1,3,0
-3 1,3,0
-2 3, 1,0
-1 CRC, 6, 0, 3
0—>9 1,3,0
10 —> 19 6,3,0
20 —> 23 1,3,0
24 3,1,0
any other value 3,2,1,0
*Replace IC’s (CRC, or ROM’s designated by number) one at a
time, returning to Step 1 of functional test after each replacement.
Continue repeating the functional test, replacing the indicated IC’s
until “‘Error’’ display is not generated.
**Display format for value may vary.