IBM 7063-CR2, Руководство пользователя

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Removing a drive signal cable from the 7063-CR2 system
To remove a drive signal cable from the IBM Power Systems HMC (7063-CR2) system, complete the steps
in this procedure.
Procedure
1. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from
damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap
is used for static control. It does not increase or decrease your risk of receiving electric shock
when using or working on electrical equipment.
• If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for a
minimum of 5 seconds. If at any point in this service process you move away from the system,
it is important to again discharge yourself by touching an unpainted metal surface for at least
5 seconds before you continue with the service process.
2. The system has two drive signal cables. Identify which drive cable has the issue.
3. Power off the system.
For instructions, see “Stopping the 7063-CR2 system” on page 99.
4. Place the system in the service position on an ESD surface on a table.
For instructions, see “Placing a 7063-CR2 system into the service position” on page 101.
5. Remove the service access cover.
For instructions, see “Removing the service access cover from a 7063-CR2 system” on page 104.
6. Remove the previously identified drive signal cable.
a) Label where the drive signal cable (A) connects to the power distribution board and to the drive
holder.
b) Remove the drive signal cable from the power distribution board and from the drive holder.
Use your thumb or finger to press the release latch on the connector to remove the cable.
Removing and replacing parts in the 7063-CR2 5