Service manual

30 July, 2001 SC TABLE
4-31
SC No. Item Definition Possible Cause
Related
SCs
Troubleshooting Procedure Type
SC 835
Self-diagnosis error: Centronics interface [XXXX]: Detailed error code
[1102] Verification
error
The controller detects that the
loop-back connector is not
properly connected.
[110C]
DMA
verification
error
A DMA data abnormality is
detected even when the loop-
back connector is properly set.
[1120]
Loop-back
connector
error
The loop-back connector is not
set when starting the detailed
self-diagnostics.
• Loose connection
• Defective loop-back
connector
• Defective Centronics
connector
• Defective controller
1. Turn the main switch off and on.
2. Check the connection between the
Centronics connector and loop-back
connector.
3. Reconnect the loop-back connector.
4. Replace the controller.
CTL
SC 836
[1601]
Self-diagnosis
error: Font
ROM
(standard)
The data in the font ROM
(standard ROM-DIMM) is
damaged. .
• Defective standard
ROM-DIMM
1. Turn the main switch off and on.
2. Replace the standard ROM-DIMM.
CTL
SC 837
[1602]
Self-diagnosis
error: Font
ROM (option)
The data in the font ROM
(optional ROM-DIMM) is
damaged.
• Defective optional
ROM-DIMM
1. Turn the main switch off and on.
2. Replace the optional ROM-DIMM.
CTL
SC 850
Network
interface error
The network is unusable.
• Defective controller
1. Turn the main switch off and on.
2. Replace the controller.
CTL
SC 851
IEEE1394
interface error
The 1394 interface is
unusable.
• Defective IEEE1394
• Defective controller.
1. Turn the main switch off and on.
2. Replace the IEEE1394 interface
board.
3. Replace the controller.
CTL
SC 860 HDD:
Initialization
error
The controller detects that the
hard disk fails.
• HDD not initialized
• Defective HDD
1. Turn the main switch off and on.
2. Reformat the HDD.
3. Replace the HDD.
CTL
SC 861 HDD: Reboot
error
The HDD does not become
ready within 30 seconds after
the power is supplied to the
HDD.
• Loose connection
• Defective cables
• Defective HDD
• Defective controller
1. Turn the main switch off and on.
2. Check the connection between the
HDD and controller.
3. Check and replace the cables.
4. Replace the HDD.
5. Replace the controller.
CTL