Aiphone JKW-IP Quick Start Manual page 70

A-Class System Service
A-Class Server Trouble Shooting
Step 2. If the fault does not recur, the problem was caused by the SIMM that is not presently installed.
Boot the system and resume normal operations. If the fault recurs, proceed to step 3.
Step 3. Power down the server and replace the RAM SIMM in slot B with the other original RAM SIMM.
Step 4. If the fault does not recur, the problem is with the RAM SIMM that was previously installed in slot
B. Boot the system and resume normal operations.
Step 5. If the fault recurs, the problem is with the system board. To change the system board, you must
replace the A-Class Exchange Base Unit (EBU). Refer to the Replacing an A-Class Server
Exchange Base Unit (EBU) section.
I/O Subsystem or I/O Board Fault
This fault occurs when either an HSC or PCI I/O board prevents the system from
completing selftest. Chassis codes provided by the HSC Remote Management card are
useful to troubleshoot this type of error. For example: FLT 8xxx indicates an I/O card
failure.
To troubleshoot I/O Subsystem or I/O Board Faults using the front panel LEDs, follow
the procedure listed below:
opening the server and exposing the system to electrostatic discharge. Always observe all
electrostatic precautions when working with components inside or out of the server.
reliability.
• Wear the anti-static wrist strap to ensure that any accumulated electrostatic charge
is discharged from your body to ground.
Before You Do Anything...
• Unplug the server.
NOTE ved from the cabinet before proceeding.
• Remove the top of the server by unscrewing the knurled captive screws on each side
of the rear of the server. Slide the top back, lift it off, and set it aside.
Step 1. Document the I/O configuration (write down which type of I/O board is installed in which
of the I/O slots).
Step 2. Remove all I/O boards. Power up the server and observe the front panel LEDs.
Step 3. If the fault does not recur and only a single I/O board was removed, that I/O card is the
cause of the I/O Subsystem or I/O Board Fault. Replace that I/O board, power on the
server, and observe the front panel LEDs. If the problem recurs, proceed to step 8.
Step 4. If the fault does not recur and two I/O boards were removed, install the bottom I/O card,
power up the server, and observe the front panel LEDs.
Chapter 3