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Okuma America Corporation
DIAGNOSTICSDIAGNOSTICS
DIAGNOSTICSDIAGNOSTICS
DIAGNOSTICS
Rev. 8-21-01
The following is an example of what appears on the screen when a CPU level alarm occurs.
If this alarm occurs, look up the access address displayed on the screen in the access address
tables at the end of this section. Make sure to verify which vintage Main Board is in the ma-
chine. There are three different tables, one for the MB-IIB, MB-II & IIA and one for the original
MB board. The board or card corresponding to the address having been accessed will most
likely be faulty. If necessary replace the board or card to which the address points. The two left
most digits are dropped when looking for the address.
1-1 CPU - ALARM BUS ERROR (CYCLE OVER)
CPU STATUS (M1,M0,PRT,CYO,MMB,DIA,LOP,ECC) = 10
FUNCTION CODE = 10A1
ACCESS ADDRESS = FFFF7E2A
INSTRUCTION REGISTER = 10BC
D0 = 434E3000 D1 = 00010600 D2 = 434E3000 D3 = 00000000
D4 = 20200004 D5 = 80000000 D6 = 00000000 D6 = 00000000
A0 = FFFFDE90 A1 = 00001D0C A2 = 000015B8 A3 = 0000A128
A4 = 00888000 A5 = 00880000 A6 = 00075B80 A7 = 00072FFC
US = 000762EC SR = 00000004 PC = 000235E0
SBP MONITOR
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