DIAGNOSTICS
Troubleshooting
10DEC05
DG4825-1
Page
119 of 180
Section 3: Troubleshooting
Initialization Errors
“Power-On Self-Test” (POST) Errors
Important
•
An error occurs if the CR 825/850 SYSTEM energizes but does not display the main
menu.
•
In normal operation, the computer in the CR 825/850 SYSTEM emits one beep after
initializing.
•
The computer emits more than one beep when a malfunction occurs.
•
If the TOUCH SCREEN displays a POST Error, see the “Troubleshooting Section” of the
Owner’s Manual for the IBM COMPUTER.
1
Listen to the beeps when the computer energizes.
2
Table 9
Beep Codes
Beep Code
Malfunction
1-2
Failure of the video ROM
1-1-3
Write/read test failure of the CMOS
1-2-2-3
Checksum failure of the BIOS ROM
1-2-1
Failure of the PROGRAMMABLE INTERVAL TIMER
1-2-2
Failure to initialize the DMA
1-2-3
Write/read test failure of the DMA PAGE REGISTER
1-2-4
“Refresh verification” failure of the RAM
1-3-3-1
Failure of the “First 64K RAM” test
1-3-2
Failure of the “First 64K RAM parity” test
2-2-3-1
Failure of the “Interrupt vector loading” test