Removing The Pdb - Sun Microsystems Netra T4 AC100 Service And System Reference Manual

2. If the system is running, shut it down and power off the system.
See Section 5.3.2, "Powering Off the System" on page 5-4.
3. Remove the top access cover.
See Section 5.6.2, "Removing the Top Access Cover" on page 5-9.
4. Detach the PSU from the PDB connector by performing Step 2 through Step 4 of
the PSU removal procedure.
Note that it is not necessary to remove the PSU from the system completely. See
Section 6.1.2, "Removing the PSU" on page 6-2.
5. Remove the Removable Media Module (RMM).
See Section 8.3.2, "Removing a Removable Media Module" on page 8-11.
6. Remove the FC-AL disk drive assembly.
See Section 8.2.2, "Removing the FC-AL Backplane and Drive Bay" on page 8-8.
7. Remove the CPU fan assembly.
See Section 7.2.2, "Removing the CPU Fan Assembly" on page 7-7.
8. Remove the PSU fans assembly.
See Section 7.1.2, "Removing the PSU Fans Assembly" on page 7-4.
9. Remove the CPU shroud cover.
See Section 9.2.2, "Removing a CPU Module" on page 9-6.
6.2.2

Removing the PDB

1. Perform the steps, as required, listed in Section 6.2.1, "Preparation" on page 6-4.
2. Disconnect the large black 14-way power cable at J2 on the PDB by pressing the
side locking lugs on the connector and pulling it away from the socket.
The cable connects to J3604 on the motherboard.
3. Disconnect the small white 14-way power cable at J3 on the PDB by pressing the
central locking lug at the back of the connector and pulling it away from the
socket.
The cable is connected to J3603 on the motherboard.
4. Disconnect the I2C ribbon cable from J4 on the PDB by opening the retaining lugs
at each end of the socket and pulling out the connector.
The I2C cable is connected to J3604 on System Configuration Card Reader (SCCR)
board.
Chapter 6 Power Subassemblies 6-5