Service manual

SC TABLE
SM 4-37 G130/G131
SC No. Item Definition Possible Cause
Related
SCs
Troubleshooting Procedure Type
SC 823 Self-diagnostic error: NIB [XXXX]: Detailed error code
[6101] MAC address
check sum error
The result of the MAC address
check sum does not match the
check sum stored in ROM.
[6104] PHY IC error The PHY IC on the controller
cannot be correctly
recognized.
[6105] PHY IC loop-
back error
An error occurred during the
loop-back test for the PHY IC
on the controller.
• Defective controller
1. Turn the main switch off and on.
2. Replace the controller.
CTL
SC 824
[1401]
Self-diagnosis
error: Standard
NVRAM
The controller cannot
recognize the standard
NVRAM installed or detects
that the NVRAM is defective.
• Loose connection
• Defective standard
NVRAM
• Defective controller
1. Turn the main switch off and on.
2. Check the standard NVRAM is firmly
inserted into the socket.
3. Replace the NVRAM.
4. Replace the controller.
CTL
SC 826 Self-diagnostic error: RTC [XXXX]: Detailed error code
[15FE] RTC backup
battery error
The RTC Battery voltage is
exhausted or not within rated
specification.
• Backup battery
discharged
1. Turn the main switch off and on.
2. Replace the RTC backup battery.
CTL
SC 828 Self-diagnostic error: Flash ROM [XXXX]: Detailed error code
[0101] Check sum
error 1
The boot monitor and OS
program stored in the Flash
ROM is checked. If the check
sum of the program is
incorrect, this SC code is
displayed.
• Defective Flash ROM
• Defective controller
1. Turn the main switch on and off.
2. Replace the controller.
CTL