Dell OptiPlex 160L User manual

Dell™OptiPlex™160LServiceManual
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Removing the Computer Cover
Control Panel
I/O Panel
Power Supply
System Board
Replacing the Computer Cover
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To remove or replace all other 160L components, see the 160L Systems User's Guide.
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Notes, Notices, and Cautions
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Information in this document is subject to change without notice.
©2003DellComputerCorporation.Allrightsreserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, and OptiPlex are trademarks of Dell Computer Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
Model: MTC2
June 2003 Rev. A00
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.

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Control Panel
Dell™OptiPlex™160LServiceManual
Removing the Control Panel
Replacing the Control Panel
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1. Shut down the computer through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
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3. Disconnect any telephone or telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets, and press the power button to ground the system board.
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5. Remove the computer cover.
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Removing the Control Panel
1. Disconnect the control panel cable from the connector on the system board.
2. Press the control panel lever to release the panel from the notch on the computer.
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CAUTION: Before you perform this procedure, see the safety instructions in your Setup and Quick Reference Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such
as the back panel) on the computer.
NOTICE: Before you disconnect a device from the computer or remove a component from the system board, verify that the standby power light on the
system board has turned off. To locate the light, see "System Board Components."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
1
control panel
2
control panel lever

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Replacing the Control Panel
1. Insert the control panel tab into the notch on the chassis.
2. Ensure that the control panel lever is secured by the tab on the chassis.
3. Connect the control panel cable to the connector on the system board.
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4. Replace the computer cover.
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5. Connect your computer and devices to electrical outlets, and turn them on.
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3
notch
4
system board connector
1
control panel lever
2
control panel tab
3
notch
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

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Replacing the Computer Cover
Dell™OptiPlex™160LServiceManual
1. Ensure that all cables are connected, and fold cables out of the way.
2. Ensure that no tools or extra parts are left inside the computer.
3. Place the cover on the computer.
4. Slide the cover toward the front of the computer until it fits completely into place.
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3. Connectyourcomputerandanydevicestoelectricaloutlets,andturnthemon.
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CAUTION: Before you perform this procedure, see the safety instructions in your Setup and Quick Reference Guide.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

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I/O Panel
Dell™OptiPlex™160LServiceManual
Removing the I/O Panel
Replacing the I/O Panel
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1. Shut down the computer through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
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3. Disconnect any telephone or telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets, and press the power button to ground the system board.
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5. Remove the computer cover.
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Removing the I/O Panel
1. Remove the hard drive(s).
2. Cut the tie wrap cord that secures the I/O panel cables to the computer frame.
3. Release and remove the front panel:
a. Push the release lever to release the top tab.
b. Reach inside the computer and push the bottom tab toward you to release it (the middle tab releases automatically).
c. Rotate the front panel to separate it from the side hinges.
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CAUTION: Before you perform this procedure, see the safety instructions in your Setup and Quick Reference Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such
as the back panel) on the computer.
NOTICE: Before you disconnect a device from the computer or remove a component from the system board, verify that the standby power light on the
system board has turned off. To locate the light, see "System Board Components."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

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4. Remove the two screws that secure the I/O panel to the computer.
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5. Remove the I/O panel and disconnect the sound/USB cable from the I/O panel.
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1
side hinges (3)
4
release lever
2
front panel
5
middle tab
3
top tab
6
bottom tab
1
screws (2)
2
I/O panel
3
sound/USB cable
4
tie wrap cord

Replacing the I/O Panel
1. Attach the sound/USB cable to the new I/O panel.
2. Insert the I/O panel into the I/O cage and replace the screws that you removed in step4.
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3. Reattach the front panel to the side hinges, and then rotate it until it snaps onto the front of the computer.
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4. Reinstall the hard drive(s).
1
screws (2)
2
I/O panel
3
I/O panel cage
1
side hinges
2
front panel

5. Replace the computer cover.
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6. Connect your computer and devices to electrical outlets, and turn them on.
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NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.

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Power Supply
Dell™OptiPlex™160LServiceManual
Removing the Power Supply
Replacing the Power Supply
DC Power Connectors
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1. Shut down the computer through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.

3. Disconnect any telephone or telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
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5. Remove the computer cover.
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Removing the Power Supply
1. Remove the fan assembly.
2. Disconnect the AC power cable from the AC power connector on the back of the power supply.
3. Unplug the DC power cables from the drives and system board.
4. Remove the four screws that secure the power supply to the back of the computer.
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CAUTION: Before you perform this procedure, see the safety instructions in your Setup and Quick Reference Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such
as the back panel) on the computer.
NOTICE: Before you disconnect a device from the computer or remove a component from the system board, verify that the standby power light on the
system board has turned off. To locate the light, see "System Board Components."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

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5. Remove the power supply from the computer.
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Replacing the Power Supply
1. Slide the power supply into place.
2. Replace the four screws that secure the power supply to the back of the computer.
3. Reinstall the fan assembly.
4. Reconnect the DC power cables to the drives and system board.
5. Replace the computer cover.
6. Connect the AC power cable to the AC power connector on the back of the power supply.
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7. Connect your computer and devices to electrical outlets, and turn them on.
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DC Power Connectors
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Power Supply DC Connector Pin Assignments
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Main Power Connector
1
screws (4)
2
power supply
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
Pin
Number
Signal Name
22-AWG
Wire
1
+3.3 VDC
Orange