Power Supply - Sun Microsystems Ultra 2 series Service Manual

7

7.1 Power Supply

7.1.1 Removing the Power Supply
!
7-2
To remove and replace the power supply, proceed as follows.
To remove the power supply:
1. Power-off the system.
2. Remove the system unit cover.
Caution – Use proper ESD grounding techniques when handling components.
Wear an antistatic wrist strap and use an ESD-protected mat. Store
ESD-sensitive components in antistatic bags before placing it on any surface.
3. Attach the wrist strap.
4. Disconnect the AC power cord from the system.
5. Disconnect the power supply connector J5 from the CD-ROM drive
(or 4-mm/8-mm tape drive).
Note – When disconnecting the power supply connectors, use thumb to press
the retention latch on the connector shell.
6. Disconnect the power supply connector J6 from the diskette drive.
7. Disconnect the following power supply connectors from the system board
(Figure 7-1).
• J1 from J3206
• J2 from J3205
• J3 from J3203
• J4 from J3204
8. Loosen the two captive screws securing the power supply to the back
panel.
Ultra 2 Series Service Manual —May 1996