Lenovo ThinkStation D20 Hardware Maintenance Manual - Page 86

1 Power cord connector 9 2 Serial port 10 3 Ethernet connector 11 4 Serial port (some models) 12 5 Audio line-out subwoofer/center speakers 13 connector 6 Audio line-in connector 14 7 Video connector (some models) 15 8 Audio line-out front speakers connector Microphone connector Audio line-out rear speakers connector SPDIF (Sony Philips Digital Interconnect Format) out connector USB connectors (8) Optical SPDIF in connector Optical SPDIF out connector eSATA connector Removing the cover CAUTION: The heat sink and microprocessor might be very hot. Turn off the computer and wait three to five minutes to let the computer cool before opening the computer cover. To remove the computer cover: 1. Remove any media from the drives and shut down your operating system. Turn off all attached devices. Turn off the computer. 2. Unplug all power cords from electrical outlets. 3. Disconnect the cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. See "Locating controls and connectors on the front of your computer" on page 77 and "Rear connectors" on page 77. 4. Remove any locking devices, such as a cable lock or padlock that secures the computer cover. Open the keylock if it is in the locked position. 78 ThinkStation Hardware Maintenance Manual