Service manual

SC TABLE 30 July, 2001
4-30
SC No. Item Definition Possible Cause
Related
SCs
Troubleshooting Procedure Type
SC 828
Self-diagnostic error : ROM [XXXX]: Detailed error code
[0101] Check sum
error 1
The boot monitor and OS
program stored in the ROM
DIMM is checked. If the check
sum of the program is
incorrect, this SC code is
displayed.
[0104] Check sum
error 2
All areas of the ROM DIMM
are checked. If the check sum
of all programs stored in the
ROM DIMM is incorrect, this
SC code is displayed.
[0105] ROM error
The ROM DIMM is not of the
recognized type.
• Defective ROM DIMM
• Defective controller
1. Turn the main switch on and off.
2. Replace the ROM DIMM
3. Replace the controller.
CTL
SC829 Self-diagnosis error: optional RAM [XXXX]: Detailed error code
[0302]
Composition
error (Slot 0)
The result of checking the
composition data of the RAM
in Slot 0 (CN5) on the
controller is incorrect.
[0401] Verification
error (Slot 1)
The data stored in the RAM in
Slot 1 does not match the data
when reading.
[0402]
Composition
error (Slot 1)
The result of checking the
composition data of the RAM
in Slot 1 (CN6) on the
controller is incorrect.
• Not specified RAM
DIMM installed
• Defective RAM DIMM
1. Turn the main switch off and on.
2. Replace the RAM DIMM.
3. Replace the controller board.
CTL
SC 833
[0F21]
Self-diagnostic
error: I/F error
The controller detects that the
BCU is not properly
connected.
• Loose connection
• Defective controller
• Defective BCU
1. Turn the main switch off and on.
2. Check the connection between the
BCU and controller.
3. Replace the controller.
4. Replace the BCU.
CTL