GE CT-9800 Technical Publications page 396

GE MEDICAL SYSTEMS
Rev. 1
BIT NAME
0 Control Full
1 R/W Done
2 Drive 0 is done
executing a
command
3 Drive 1 is done
executing a
command
4 Drive 2 is done
executing a
command
5 Drive 3 is done
executing a
command
6 Parity Error
TABLE 8-1
DIA STATUS BITS DECODE
The adapter is talking to another disk drive and the rest of the status word
should be ignored.
For single disk drive systems or when running diagnostics on single or dual
disk drive systems this bit should always be a 0.
If this bit is a 1, the problem may be the 960 (DISK CONTROLLER Board), 951
(ADAPTER 1 Board) or cabling between the CPU backplane and the Adapter
chassis.
For dual disk drive systems this bit may be set occasionally and should not
be considered an error. If this bit fails to clear, then troubleshoot as
described above.
This bit is normally a 1. A 04xxx, 05xxx, or 06xxx usually indicates the
status word is a DIA Status. If the bit never sets, there is a problem
communicating with the requested disk drive. Possible problems are:
• DISK CONTROLLER Board has incorrect device code, is missing, defective,
or is in the wrong slot.
• Cabling from CPU Backplane to Adapter chassis is defective or on wrong
slot
• Adapter is turned OFF, Adapter 1 board is defective
• Cable from Adapter to Disk Drive is on the wrong slot or is defective
• Disk Drive is not ready of DRIVE LOGIC Board is defective
This bit is normally a 0. It may occasionally be set if other errors occur. This bit
gives no useful troubleshooting information.
This bit is normally a 0. It may occasionally be set if other errors occur. If this
system has only a single disk drive, this bit should never be set. If it is set,
possible problems are:
• DISK CONTROLLER Board
• Cabling from the Adapter to the CPU Backplane
• ADAPTER 1 Board
This bit should never be set. If it is set possible problems are:
• DISK CONTROLLER Board
• Cabling from the Adapter to the CPU Backplane
• ADAPTER 1 Board
Same as Bit 4.
An error was detected while transferring dat or status between the DATA
CHANNEL CONTROL Board and the ADAPTER 2 Board. Most likely causes:
• ADAPTER 2 Board
• DISK CONTROLLER Board
• DATA CHANNEL INTERFACE Board
• Cabling between the Adapter and CPU Backplane
WHAT TO DO
8-1-6
CT 9800 QUICK SYSTEM
Direction 18000