Dell™ Vostro™ 1720 Service Manual Working on Your Computer Adding and Replacing Parts Specifications Diagnostics System Setup Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Back to Contents Page System Setup Dell™ Vostro™ 1720 Service Manual Entering System Setup Menu Entering System Setup Press to enter System Setup and make changes to the user-definable settings. If you are having trouble entering Setup using this key, reboot and press the key when the keyboard LEDs first flash. Menu Press when the Dell logo appears to initiate a one-time boot menu with a list of the valid boot devices for the computer.
Back to Contents Page Diagnostics Dell™ Vostro™ 1720 Service Manual Device Status Lights LED Error Codes Power Button Light Codes Device Status Lights 1—Turns on when your computer reads or writes data to the hard drive. NOTE: To avoid loss of data, never turn off your computer while the Hard Drive light is flashing. 2—Turns on when wireless networking is enabled. 3—Turns on when a card with Bluetooth® wireless technology is enabled.
2. Memory compatability error 3. 4. ON-FLASH-ON 1. 2. Memory is detected but has errors If two modules are installed remove one and test. Try the other module in the same slot and test. Test the other slot with both modules. Replace the memory. Replace the system board. 3. 4. Reseat the memory. If two modules are installed remove one and test. Try the other module in the same slot and test. Test the other slot with both modules. Replace the memory Replace the system board. 1. 2. 3. Reseat the modem.
Back to Contents Page Adding and Replacing Parts Dell™ Vostro™ 1720 Service Manual Battery Coin-Cell Battery Access Panel Optical Drive Hard Drive Wireless Local Area Network (WLAN) Card Memory Fan Heat Sink and Processor Internal Card With Bluetooth® Wireless Technology Hinge Cover Keyboard Palm Rest USB/IEEE 1394 Board System Board Display Assembly Display Bezel Display Inverter Camera LCD Display Panel Display Assembly Hinges Speaker Assembly Power Button and Multimedia Button Pads
Back to Contents Page Specifications Dell™ Vostro™ 1720 Service Manual Processor Display System Information Keyboard ExpressCard™ Touch Pad 8-in-1-Memory Card Reader Fingerprint Reader Memory Camera Ports and Connectors Battery Communications AC Adapter Video Physical Audio Environmental NOTE: Offerings may vary by region.
Ports and Connectors Audio Microphone connector and stereo headphone/speakers connector IEEE 1394 One 4-pin connector Dock Optional USB Port Replicator only One dedicated half Mini-Card slot for WLAN Mini-card support (internal expansion slots) One dedicated half Mini-Card slot for WLAN One USB-based daughter card with Bluetooth® wireless technology (Dell Wireless 355) Network adapter RJ-45 connector USB, USB PowerShare and eSATA Six USB 2.
Pixel pitch WXGA 0.258 mm (.010 inch) WUXGA with TrueLife 0.23 (.009 inch) Controls Brightness can be controlled through keyboard shortcuts Keyboard Number of keys 105 (U.S. and Canada); 106 (Europe); 109 (Japan) Layout QWERTY/AZERTY/Kanji Size: Standard Full size Maximum 359.40 mm x 118.90 mm x 5.20 mm (14.15 x 4.681 x 0.205 inches) Touch Pad X/Y position resolution (graphics table mode) 240 CPI Size: Width 73.70 mm (2.90 inches) Height 43.10 mm (1.
Operating 0° to 35°C (32° to 95°F) Storage -40° to 65°C ( -40° to 149°F) Output voltage 19.5 VDC Output current 5.62 A (maximum at 4-second pulse), 4.62 A (continuous) Dimensions: Height 15.00 mm (0.60 inches) Width 66.00 mm (2.60 inches) Depth 127.00 mm (5.00 inches) Weight 0.29 kg (0.64 lb) PA-10 90 W D-Series AC adapter: Output voltage 19.5 VDC Output current 4.62 A Height 33.80 mm (1.34 inches) Width 60.90 mm (2.39 inches) Depth 153.40 mm (6.04 inches) Weight (with cables) 0.
Back to Contents Page Access Panel Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Access Panel 1. 2. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. 3. Remove the eight screws from the access panel. 4.
5. Remove the access panel.
Back to Contents Page Battery Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Battery 1. Follow the procedures in Before Working Inside Your Computer. 2. Slide the battery lock latches into the unlocked position. 3.
Back to Contents Page Power Button and Multimedia Button Pads Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Power Button and Multimedia Button Pads 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer.
6. Remove the screw that secures the multimedia button pad to the computer. 7. Slide the multimedia button pad to the left. 8. Turn the multimedia button pad onto the keyboard. 9. Disconnect the data cable from the multimedia button pad. 10. Remove the two button pads from the computer.
Back to Contents Page Coin-Cell Battery Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Coin-Cell Battery 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the access panel from the computer. 4.
Back to Contents Page Display Bezel Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Display Bezel 1. 2. Follow the procedures in Before Working Inside Your Computer. Remove the display assembly from the computer. 3.
5. Remove the bezel from the display assembly.
Back to Contents Page Camera Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Camera 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the display assembly from the computer. Remove the display bezel from the display assembly. 4.
6. Disconnect the camera data cable. 7. Remove the camera from the display assembly.
Back to Contents Page Display Assembly Hinges Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Display Assembly Hinges 1. 2. 3. 4. Follow the procedures in Before Working Inside Your Computer. Remove the display assembly from the computer.
7. Remove the display panel hinges from the display panel assembly.
Back to Contents Page Display Inverter Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Display Inverter 1. 2. Follow the procedures in Before Working Inside Your Computer. Remove the display assembly from the computer. 3.
Back to Contents Page LCD Display Panel Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the LCD Display Panel 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the display assembly from the computer.
Back to Contents Page Display Assembly Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Display Assembly 1. 2. 3. 4. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the hinge cover from the computer.
7. Disconnect the camera data cable from the system board. 8. Remove the data and antenna cables from the palm rest. 9. Disconnect the display data cable from the system board. 10. Remove the four remaining screws that secure the display assembly to the computer chassis. 11. Lift the display assembly straight up and remove the display assembly from the computer.
Back to Contents Page Fan Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Fan 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the access panel from the computer. 4.
6. Lift up on the fan and remove it from the computer.
Back to Contents Page Hinge Cover Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Hinge Cover 1. 2. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. 3.
5. Continue to separate the hinge cover from the system working from right to left, then remove the hinge cover.
Back to Contents Page Hard Drive Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Hard Drive 1. 2. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. 3.
5. Remove the two screws that secure the hard drive in place. 6. Slide the hard drive toward the right side of the computer. 7. Lift the hard drive from the computer.
Back to Contents Page Keyboard Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Keyboard 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the power button and multimedia button boards from the computer. 4.
6. Open the keyboard data cable clip. 7. Remove the keyboard data cable from the clip. 8. Remove the keyboard from the computer.
Back to Contents Page Memory Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing Memory Modules 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the access panel from the computer. 4.
6. If applicable, remove the bottom memory module by using your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the memory module pops up. 7. Slide the memory module out of the socket.
Back to Contents Page Optical Drive Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Optical Drive 1. 2. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. 3.
5. Remove optical drive from the computer.
Back to Contents Page Palm Rest Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Palm Rest 1. 2. 3. 4. 5. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the power button and multimedia button pads from the computer.
8. Remove the touch pad data cable from the clip. 9. Open the fingerprint reader data cable clip. 10. Remove the fingerprint reader data cable from the clip.
11. Remove the nine palm rest screws that secure the palm rest to the top of the computer. 12. Remove the palm rest from the computer.
Back to Contents Page Heat Sink and Processor Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Heat Sink and Processor 1. 2. 3. 4. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the access panel from the computer.
7. Slide the heat sink toward the center of the computer, then lift up the heat sink and remove it from the computer. 8. Rotate the processor cam counterclockwise. 9. Lift the processor straight up from its socket, taking care not to bend any of the processor pins.
Back to Contents Page Speaker Assembly Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Speaker Assembly 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer.
13. Remove the speaker assembly from the computer.
Back to Contents Page System Board Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your Tablet-PC, read the safety information that shipped with your Tablet-PC. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the System Board 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the access panel from the computer.
13. Disconnect the Bluetooth® module cable from the system board. 14. Disconnect the power cable from the system board. 15. Remove the three screws that secure the system board to the computer chassis.
16. Remove the system board from the computer chassis.
Back to Contents Page USB/IEEE 1394 Board Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the USB/IEEE 1394 Board 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer.
13. Lift the inside edge of the USB board and remove the board from the computer.
Back to Contents Page Wireless Local Area Network (WLAN) Card Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the WLAN Card 1. 2. 3. Follow the procedures in Before Working Inside Your Computer. Remove the battery from the computer. Remove the access panel from the computer.
6. Remove the WLAN card from the computer.
Back to Contents Page Internal Card With Bluetooth® Wireless Technology Dell™ Vostro™ 1720 Service Manual WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance. Removing the Internal Card With Bluetooth Wireless Technology 1. 2. 3. Follow the procedures in Before Working Inside Your Computer.
6. Disconnect the Bluetooth module data cable. 7. Remove the Bluetooth module from the computer.
Back to Contents Page Working on Your Computer Dell™ Vostro™ 1720 Service Manual Before Working Inside Your Computer Recommended Tools Turning Off Your Computer After Working Inside Your Computer Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety.
1. Shut down the operating system: l In Windows Vista: Click Start l , then click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down. In Windows XP: Click Start® Turn Off Computer® Turn Off. The computer turns off after the operating system shutdown process is complete. 2. Ensure that the computer and all attached devices are turned off.