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Troubleshooting > Startup System Failure Diagnosis > Flow C: Main Controller Analysis Flow > Status Check
Troubleshooting > Startup System Failure Diagnosis > Flow C: Main Controller Analysis Flow > Status Check
Flow C: Main Controller Analysis Flow
■
Status Check
If the Main Controller 1 LED 8 and Main Controller 2 LED 5 cannot be turned ON, identify
the location of the failure according to the flow.
●
Flow for narrowing down troubles
Pre-check items
• Check whether the Main Controller 1 and Main Controller 2 are connected properly.
• Disconnect and then connect the DIMMs on the Main Controllers. Try interchanging them
with each other.
• Try disconnecting and then connecting the Flash PCB.
• Check whether the cables between the Main Controller 1 and the Control Panel are
connected properly.
If the Control Panel is not turned ON even after these checks, try identifying the location of
the failure through the following procedure.
Main Controller PCB 1
Main Controller PCB 2
DIMM
Flash PCB
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(1)
Analysis complete
Has the machine
normally started up?
Is the Main Controller 2
LED5 ON?
No
No
Yes
(2)
- Check whether the Main Controller 1 and
Main Controller 2 are connected properly.
- Disconnect and then connect the DIMMs on the Main
Controllers. Try interchanging them with each other.
- Try disconnecting and then connecting the Flash PCB.
- Check whether the cables between the Main Controller 1
and the Control Panel are connected properly
1. Turning OFF the power of the host machine.
2. Replace the Main Controller 2.
3. Turn OFF the power of the host machine.
Has the machine
normally started up?
No
Yes
Yes
Is the Main Controller 1
LED8 ON?
No
Has the machine
normally started up?
No
Yes
Yes
Replacement of the SATA-Flash
Analysis complete
Analysis complete
1. Turning OFF the power of the host machine.
2. Replace the Main Controller 1.
3. Turn OFF the power of the host machine.
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