IBM TotalStorage SAN140M, Installation And Service Manual

Page: 271 / 428

239 Chapter 5: Removal and replacement procedures (RRPs)
b. Click the Sys Err Light tab. The Switch page displays with
the Sys Err Light tab selected. A System Error Light is ON
message displays on the page.
c. Click Clear Light.
12. If necessary, close and lock the equipment cabinet door.
RRP: Power/system error LED assembly
Use the following procedures to remove or replace the
Power/System Error LED assembly. A list of tools required is
provided.
Tools required
The following tools are required to perform these procedures.
• Door key with 5/16-inch socket.
• Standard flat-tip screwdriver.
• ESD grounding cable and wrist strap.
Removal
To remove the Power/System Error LED assembly:
1. Remove the RFI shield.
ATTENTION!
To avoid causing machine errors or damage while working on
the director, follow ESD procedures by connecting a grounding cable to the
director chassis and wearing an ESD wrist strap.
2. Follow ESD procedures by attaching a wrist strap to the director
chassis and your wrist ( Figure 69 ).
3. Remove only the center and upper left fan modules (viewed from
the rear) ( RRP: Fan module on page 235).
4. Unplug the Power/System LED assembly cable from the
backplane.
5. Remove the Power/System LED assembly ( Figure 77 ).
6. Place the LED assembly in an anti-static bag to provide ESD
protection.