Dell Inspiron 300m Service Manual
Contents
1. Palm Rest Assembly coos palm rest assembly Back to Contents Page Back to Contents Page Palm Rest Dell Inspiron 300m Service Manual Removing the Palm Rest Replacing the Palm Rest Removing the Palm Rest A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Turn the computer over and remove the three M2 x 4 mm screws from the bottom of the computer M2X4 screw 3 4 Turn the computer over and open the display 5 Remove the six M2 x 4 mm screws on the palm rest M2 x 4 mm screws 6 6 Lift up and rotate the palm rest forward 7 Lift the ZIF connector and disconnect the palm rest flex cable from its ZIF connector on the system board palm rest flex cable ZIF connector 8 Lift the palm rest up and out of the computer Replacing the Palm Rest To aid with proper flex cable connection a locator line has been added near the end of the palm rest flex cable When replacing the palm rest flex cable press the cable into the connector until the line aligns with the system boar2. Dell Inspiron 300m Service Manual To update the basic input output system BIOS 1 Go to support dell com If this is your first time to use the website complete the one time registration 2 Enter the Service Tag for your computer or select the appropriate Dell computer Click Go 3 Click Downloads 4 Select the appropriate operating system and language for your computer 5 Select the FlashBI OS Updates download category Click Go 6 Click the BIOS link and follow the instructions to download the BIOS to your computer Back to Contents Page Back to Contents Page Bluetooth Module Dell Inspiron 300m Service Manual Replacing the Bluetooth Module A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual 1 Remove the M2 x 5 mm screw 2 Disconnect the cable from the system board 3 Lift the assembly out M2 x 5 mm screw 4 To replace the Bluetooth module a Replace the assembly b Connect the cable to the system board c Replace the screw Back to Contents Page Back to Contents Page Dell Diagnostics Dell Inspiron 300m Service Manual When to Use the Dell Diagnostics Starting the Dell Diagnostics When to Use the Dell Diagnostics If you experience a problem with your computer perform the checks in the Solving Problems section in your User s Guide or Owner s Manual and run the Dell Diagnosti
3. Dell Diagnostics loads and the Main Menu screen appears click the button for the option you want Express Test Performs a quick test of devices This test typically takes 10 to 20 minutes and requires no interaction on your part Run Express Test first to increase the possibility of tracing the problem quickly Extended Performs a thorough check of devices This test typically takes an hour or more and requires you to answer questions periodically Test Custom Test Tests a specific device You can customize the tests you want to run Symptom Lists the most common symptoms encountered and allows you to select a test based on the symptom of the problem you are having Tree 2 Ifa problem is encountered during a test a message appears with an error code and a description of the problem Write down the error code and problem description and follow the instructions on the screen If you cannot resolve the error condition contact Dell See your User s Guide or Owner s Manual for contact information K NOTE The Service Tag for your computer is located at the top of each test screen If you contact Dell technical support will ask for your Service Tag 3 If you run a test from the Custom Test or Symptom Tree option click the applicable tab described in the following table for more information Results Displays the results of the test and any error conditions encountered Errors Displays error conditions encountered error codes and
4. latch K NOTE The battery latch release has springs and should be installed on the bottom case 2 Ensure that the newly installed latch moves smoothly and freely when pushed and released Back to Contents Page Back to Contents Page Battery Dell Inspiron 300m Service Manual Removing a Battery installing the Battery Removing a Battery A CAUTION Before performing these procedures disconnect the modem from the telephone wall jack A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE If you choose to replace the battery with the computer in standby mode you have up to 1 minute to complete the battery replacement The computer will shut down shortly after this 1 Ensure that the computer is turned off suspended in a power management mode or connected to an electrical outlet 2 If the computer is connected to a media base docked undock it See the documentation that came with your media base for instructions 3 Slide the battery latch releases on the bottom of the computer and remove the battery from the bay 1 battery latch release 2 Installing the Battery To install the battery slide the battery or the optional extended battery into the bay until the latch release clicks optional extended battery e Back to Contents Pa Back to Contents Page Before You Begin Dell Inspiron 300m Ser
5. Dell Inspiron 300m Service Manual Before You Begin Reserve Battery Dell Diagnostics Speakers System Components Bluetooth Module Battery Cooling Fan Memory Modem and Mini PCI Card Modules Battery Latches Keyboard System Board Palm Rest Flashing the BIOS Hard Drive Pin Assignments for I O Connectors Hinge Covers and Display Assembly Mini Recommended Spares List Keyboard Tray Notes Notices and Cautions K NOTE A NOTE indicates important information that helps you make better use of your computer NOTI CE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem Ax CAUTION A CAUTION indicates a potential for property damage personal injury or death Information in this document is subject to change without notice O 2003 2005 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo ExpressCharge and Latitude are trademarks of Dell Inc Microsoft and Windows are registered trademarks of Microsoft Corporation Intel is a registered trademark of Intel Corporation Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license 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 Inc disclaims any proprietary int
6. aight up and out of the bottom case Back to Contents Page Back to Contents Page System Board Dell Inspiron 300m Service Manual Removing the System Board Replacing the System Board Removing the System Board A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Remove the palm rest 4 Remove the hinge covers 5 Remove the display assembly 6 Remove the keyboard tray 7 Remove the hard drive 8 Remove the memory module 9 Remove the Mini PCI card if present 10 Remove the modem card if present 11 Remove the three M2 x 4 mm screws that secure the system board to the bottom case K NOTE Each system board screw has an arrow beside it system board 2 M2 x 4 mm screws 3 status light LED cable ZIF connector 12 Disconnect the left and right speakers from their system board connectors K NOTE The Reserve battery should be attached on the memory chip surface during transportation to the repair center 13 Remove the reserve battery 14 Disconnect the Bluetooth cabl
7. al Connector 123465 6789 IEEE 1394 Connector 1234 USB Connector 2 0 2 1234 Back to Contents Page Back to Contents Page Reserve Battery Dell Inspiron 300m Service Manual 4 Removing the Reserve Battery Y Replacing the Reserve Battery Removing the Reserve Battery A CAUTI ON Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Remove the palm rest NOTICE Do not pull on the reserve battery cable Pull from the reserve battery connector to disconnect the cable 4 Disconnect the reserve battery cable from the system board connector reserve battery reserve battery cable reserve battery connector system board connector 5 Disconnect the speaker cables 6 Pry the reserve battery free from the bottom case The reserve battery is attached to the bottom case with a piece of adhesive tape 7 Remove any remnants of the adhesive tape from the bottom case Replacing the Reserve Battery 1 Connect the reserve battery connector to the system board connector 2 Press the
8. at against your work surface 2 Place the hinge covers over the display hinges a The left hinge cover fits over the power button Both hinge covers pass through the display hinges to the back of the computer b Ensure that the two securing tabs on the outer edge of each hinge cover are engaged in their respective slots 3 Press down on the top of each hinge cover to snap the hinge covers into place 4 Close the display 5 Press the back of each hinge cover into the back of the computer K NOTE The back of each hinge cover has a tab that snaps into a slot on the back of the computer Display Assembly Removing the Display Assembly A CAUTI ON Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Turn the computer over and remove the two M3 x 5 mm screws from the bottom of the computer M3 x 5 mm screws 2 4 Turn the computer over and open the display 180 degrees 1 M2 x 6 mm screws 2 5 Remove the two M2 x 6 mm screws near the display hinges on the top of the computer 6 Disconnect both the antenna
9. cables have a connector with locking tabs if you are disconnecting this type of cable press in on the locking tabs before you disconnect the cable As you pull connectors apart keep them evenly aligned to avoid bending any connector pins Also before you connect a cable ensure that both connectors are correctly oriented and aligned NOTI CE To avoid damaging the computer perform the following steps before you begin working inside the computer Ensure that the work surface is flat and clean to prevent the computer cover from being scratched Shut down the computer Ensure that the computer and any attached devices are turned off If your computer and attached devices did not automatically turn off when you shut down your computer press and hold the power button for 4 seconds If the computer is connected to a media base docked undock it See the documentation that came with your media base for instructions NOTI CE To disconnect a network cable first unplug the cable from your computer and then unplug it from the network wall jack Disconnect any telephone or telecommunication lines from the computer Disconnect your computer and all attached devices from their electrical outlets and then press the power button to ground the system board NOTICE To connect a network cable first plug the cable into the network wall jack and then plug it into the computer 7 Remove any installed PC Cards from the PC Card slot 8 Remove any in
10. computer NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem Ax CAUTION A CAUTION indicates a potential for property damage personal injury or death Information in this document is subject to change without notice 2003 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo ExpressCharge and Latitude are trademarks of Dell Inc Microsoft and Windows are registered trademarks of Microsoft Corporation Intel is a registered trademark of Intel Corporation Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license 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 Inc disclaims any proprietary interest in trademarks and trade names other than its own November 2003 Rev A01 Back to Contents Page Back to Contents Page Memory Modem and Mini PCI Card Modules Dell Inspiron 300m Service Manual Adding Memory Replacing a Modem Adding a Mini PCI Card Adding Memory You can increase your computer memory by installing a memory module on the system board See the Specifications section in your Owner s Manual for information on the memory supported by your computer Be sure to add only a mem
11. connectors NOTICE Do not pull on the signal cable Pull the signal connector to disconnect the cables 7 Disconnect the signal cable from the system board 8 If a tape secures the signal connector remove it and disconnect the signal cable from the system board antenna connector 1 signal cable 9 Remove the display assembly out of the bottom case Replacing the Display 1 Replace the display assembly into the bottom case and open the display 180 degrees 2 Replace the two M2 x 6 mm screws by the display hinges on the top of the computer 3 Connect both the antenna connectors matching the color codes 4 Connect the signal cable to the system board 5 Ifa tape secured the signal connector replace it and connect the signal cable to the system board 6 Close the display and turn the computer over 7 Replace the two M3 x 5 mm screws from the bottom of the computer 8 Replace the keyboard 9 Replace the battery Back to Contents Page Back to Contents Page Cooling Fan Dell Inspiron 300m Service Manual Removing the Cooling Fan A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begi
12. cs before you contact Dell for technical assistance Running the Dell Diagnostics may help you resolve the problem without contacting Dell If you do contact Dell the test results can provide important information for Dell s service and support personnel The Dell Diagnostics allows you to Perform tests on one or all devices Select tests based on a symptom of the problem you are having Choose how many times a test is run Suspend testing if an error is detected Access help information that describes the tests and devices Receive status messages that tell you whether tests completed successfully Receive error messages if problems are detected Starting the Dell Diagnostics NOTICE Use the Dell Diagnostics to test your Dell computer only Using this program with other computers can result in error messages The Dell Diagnostics is located on a hidden diagnostic utility partition on your hard drive K NOTE If your computer cannot display a screen image contact Dell 1 Shut down the computer 2 If the computer is connected to a media base docked undock it See the documentation that came with your media base for instructions 3 Connect the computer to an electrical outlet 4 Turn on the computer When the DELL logo appears press lt F12 gt immediately K NOTE If you cannot see anything on your display hold down the mute button and press the computer s power button to begin the Dell Diagnostic
13. d and hold it steady while you snap the ZIF connector down The locator line may reappear after the connector is closed which should not indicate a problem with the connection Back to Contents Page Back to Contents Page Pin Assignments for O Connectors Dell Inspiron 300m Service Manual Pin Assignments for the Computer Pin Assignments for the Media Base Pin Assignments for the Computer USB Connector 2 0 1234 Video Connector 00000 00000 00000 09876 15 14 13 12 11 signa rm ma reo ser ERES IE IEEE 1394 Connector 1234 Pin Assignments for the Media Base Docking Connector Pin Signal Pin Signal s essan e uss soc fo ew 7200 CS CON E E E E E a E 5 E F E E 5 so mos ros fao osas swa E 13 nossos Jum as rosae ae estar ar Pos euse fas eses koma E E 5 so sos ers leo alba spor S103 R11 6 DCK3 PWRSW 2 7 sios osar 66 cnrs usioe nsr sios ocon es oec vow ums Dee tado eo tans oce meore pwone os ooa anen Pace voon se 100m e usss 5 uses ra mam os usar seres os usares PS 2 Connector DAT KBD DAT SM1 GND PS2VCC CLK_KBD CLK_SM1 Parallel Connector 000000000000 00000000000 13 A 1 444 sia CN J ga PD5F INIT DIR Ge E A o er es om Video Connector 54321 109876 15481321 E a em io mo i o 5 fimo ET fi ne Seri
14. d then click Computer Information In Windows 2000 right click the My Computer icon on your desktop and then click the General tab Replacing a Modem A CAUTION Before performing any of the procedures listed below read and follow the safety instructions in the System Information Guide 1 Ensure that the work surface is flat and clean to prevent scratching the computer cover 2 Save and close any open files exit any open programs and then shut down the computer 3 If the computer is connected to a media base docked undock it See the documentation that came with the media base for instructions 4 Disconnect the computer from the electrical outlet 5 Wait 10 to 20 seconds and then disconnect any attached devices 6 Remove any installed PC Cards or blanks battery and devices NOTICE Handle modules by their edges and do not touch the components on a module Ground yourself by touching a metal connector on the back of the computer and continue to do so periodically during this procedure 7 Turn the computer over and loosen the two captive screws on the modem cover and remove the cover captive screw 2 8 If a modem is not already installed go to step 10 9 If you are replacing a modem remove the existing modem a Remove the screw securing the modem to the system board and set it aside b Pull straight up on the attached pull tab to lift the modem out of its connector on the system board and disconn
15. e from the system board if a Bluetooth device is present 15 Lift the ZIF connector and remove the status light LED cable from its ZIF connector on the system board 16 Lift the system board up from the right side and out of the bottom case Replacing the System Board 1 Place the system board in the bottom case K NOTE Route cables so that they will not be crimped or pinched when the complete assembly is put back together 1 wireless antenna 2 Reconnect all the cables to the system board ZIF connectors 3 Reinstall the three M2 x 4 mm screws that secure the system board to the bottom case K NOTE After replacing the system board enter the computer Service Tag into the BIOS of the replacement system board Back to Contents Page Back to Contents Page System Components Dell Inspiron 300m Service Manual NOTICE Only a certified service technician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty NOTICE Unless otherwise noted each procedure in this manual assumes that a part can be replaced by performing the removal procedure in reverse order 1 display 8 speakers 2 2 hinge covers 2 9 reserve battery ma Back to Contents Page Back to Contents Page Dell Inspiron 300m Service Manual K NOTE A NOTE indicates important information that helps you make better use of your
16. ect the modem cable modem cable connector modem 3 modem screw system board connector 10 Connect the modem cable to the modem NOTICE The connectors are keyed to ensure correct insertion If you feel resistance check the connectors and realign the card 11 Align the modem with the screw hole and press the modem into the connector on the system board 12 Install the screw to secure the modem to the system board 13 Replace the cover Adding a Mini PCI Card If you ordered a Mini PCI card with your computer the card is already installed A CAUTION Before performing any of the procedures listed below read and follow the safety instructions in the System Information Guide 1 Ensure that the work surface is flat and clean to prevent scratching the computer cover 2 Save and close any open files exit any open programs and shut down the computer 3 If the computer is connected to a media base docked undock it See the documentation that came with the media base for instructions 4 Disconnect the computer from the electrical outlet 5 Wait 10 to 20 seconds and then disconnect any attached devices 6 Remove any installed PC Card or blanks battery and devices NOTICE Handle modules and cards by their edges and avoid touching pins and contacts Ground yourself by touching a metal connector on the back of the computer Continue to ground yourself periodically during this procedure 7 Turn the c
17. erest in trademarks and trade names other than its own May 2005 Rev A02 Back to Contents Page Battery Latches Dell Inspiron 300m Service Manual Removing the Battery Latches Replacing the Battery Latches Removing the Battery Latches A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Remove the palm rest 4 Remove the hinge covers 5 Remove the display assembly 6 Remove the keyboard tray 7 Remove the hard drive 8 Remove the memory module 9 Remove the Mini PCI card if present 10 Remove the modem card if present 11 Remove the system board 12 On the inside of the bottom case use your fingers to unhook the latch from the bottom case and the snap tabs catching the latch button on the outside of the bottom case spring 2 battery lock latch 3 4 battery lock latch sina o 6 battery latch release button Replacing the Battery Latches 1 Snap in the new latch button from behind the bottom case making certain that the snap tabs are fully engaged in the
18. n before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Remove the palm rest 4 Remove the four M2 x 3 mm screws that secure the cooling fan to the system board y M2 x 3 mm screws 4 cooling fan cooling fan cable cooling fan connector system board connector 5 Remove the tape that secures the cooling fan cable to the fan NOTICE Do not pull on the cooling fan cable Pull from the cooling fan connector to disconnect the cable 6 Disconnect the cooling fan cable from the system board connector 7 Lift the cooling fan up and out of the bottom case Back to Contents Page Back to Contents Page Hard Drive Dell Inspiron 300m Service Manual Removing the Hard Drive Replacing the Hard Drive Removing the Hard Drive A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Remove the palm rest 4 Loosen the four M2 x 5 5 mm screws that secure the hard drive to the bottom case Rubber grommets secure each screw to the hard drive so that you do no
19. omputer over and loosen both the captive screw s from the Mini PCI card cover and remove the cover captive screw 2 8 Ifa Mini PCI card is not already installed go to step 10 9 If you are replacing a Mini PCI card remove the existing card a Disconnect the Mini PCI card from the attached cables cable connectors b Release the Mini PCI card by spreading the metal securing tabs until the card pops up slightly latch release MPCI card c Lift the Mini PCI card out of its connector NOTICE To avoid damaging the Mini PCI card never place cables on top of or under the card 10 Toreplace a Mini PCI card align the card with the connector at a 45 degree angle and press the Mini PCI card into the connector 11 Lower the Mini PCI card toward the inner tabs to approximately a 20 degree angle 12 Continue lowering the Mini PCI card until it snaps into the inner tabs of the connector Mini PCI card 13 Connect the antenna cable to the antenna connector on the Mini PCI card NOTICE The connectors are keyed for correct insertion If you feel resistance check the connectors and realign the card cable connector 14 Replace the cover and tighten the screws Back to Contents Page
20. or until the line disappears and hold the cable steady while you close the ZIF connector The white line may reappear after the connector is closed which should not indicate a problem with the connection NOTICE Position the keyboard flex cable so that it is not pinched when you replace the keyboard in the bottom case 5 Rotate the keyboard back and fit it into the bottom case 6 Ensure that all four keyboard securing tabs are engaged in their respective slots before trying to completely seat the keyboard Press down on the left and right lt Alt gt keys to help control tab slot alignment When the keyboard appears to be completely seated confirm that the front edge of the keyboard is aligned with the edge of the palm rest before proceeding 7 Replace the four M2 x 4 mm screws on the bottom of the computer Back to Contents Page Back to Contents Page Keyboard Tray Dell Inspiron 300m Service Manual Removing the Keyboard Tray Replacing the Keyboard Tray Removing the Keyboard Tray A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the bat
21. ory module that is intended for your computer K NOTE Memory modules purchased from Dell are covered under your computer warranty A CAUTI ON Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual 1 Ensure that the work surface is flat and clean to prevent scratching the computer cover 2 Save and close any open files exit any open programs and shut down the computer 3 If the computer is connected to the media base docked undock it See the documentation that came with your media base for instructions 4 Disconnect the computer from the electrical outlet 5 Wait 10 to 20 seconds and then disconnect any attached devices 6 Remove any installed PC Cards and battery NOTICE Handle components and cards by their edges and avoid touching pins and contacts Ground yourself by touching a metal connector on the back of the computer Continue to ground yourself periodically during this procedure 7 Turn the computer over unscrew both captive screw s from the memory module Mini PCI modem cover and remove the cover captive screw 2 memory module cover NOTICE To prevent damage to the memory module connector do not use tools to spread the memory module securing clips 8 If you are replacing a memory module remove the existing module NOTICE Handle components and cards by their edges and avoid touching pins and contacts Ground yourself by touching a me
22. reserve battery into place on the bottom case 3 Ensure that the cable is routed correctly as shown to avoid damaging the cable reserve battery cable 4 Connect the speaker cables speaker cables 5 Update the CMOS settings Back to Contents Page Back to Contents Page Speakers Dell Inspiron 300m Service Manual Removing the Speakers A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the keyboard 3 Remove the palm rest 4 Remove the M2 x 4 mm screw that secures the speaker to the bottom case K NOTE The left and right speakers are interchangeable W a system board connector 1 per speaker speaker connector 1 per speaker 3 M2 x 4 mm screw 1 per speaker speaker cable 1 per speaker speakers 2 NOTICE Do not pull on the speaker cable Pull from the speaker connector to disconnect the cable 5 Disconnect the speaker cable from the system board connector NOTICE Handle the speakers with care to avoid damaging them 6 Remove the speaker by pulling it str
23. s The computer automatically runs the Pre boot System Assessment K NOTE If you see a message stating that no diagnostics utility partition has been found run the Dell Diagnostics from your Drivers and Utilities CD If you wait too long and the Microsoft Windows logo appears continue to wait until you see the Windows desktop Then shut down your computer through the Start menu and try again 5 When the boot device list appears highlight Diagnostics and press lt Enter gt The computer runs the Pre boot System Assessment a series of initial tests of your system board keyboard hard drive and display During the assessment answer any questions that appear Ifa failure is detected the computer stops and beeps To stop the assessment and restart the computer press lt N gt to continue to the next test press lt Y gt to retest the component that failed press lt R gt If failures are detected during the Pre boot System Assessment write down the error code s and contact Dell before continuing on to the Dell Diagnostics If the Pre boot System Assessment completes successfully you receive the message Booting Dell Diagnostic Utility Partition Press any key to continue 6 Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive 7 When the Dell Diagnostics Main Menu appears select the test you want to run see xx Dell Diagnostics Main Menu 1 After the
24. stalled Secure Digital memory card from the Secure Digital memory slot 9 Close the display and turn the computer upside down on a flat work surface NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 10 Slide and hold the battery bay latch release on the bottom of the computer and then remove the battery from the bay battery latch release 2 11 Remove any installed modules including a second battery if installed 12 Remove the hard drive Computer Orientation Screw Identification Placemat When you are removing and replacing components photocopy the placemat as a tool to lay out and keep track of the screws The placemat provides the number of screws and their sizes a E Im H H H M2 x 3 mm M2 x 4 mm M2 x 5 mm pa y HH H H M2 x 5 5 mm M2 x 6 mm M3 x 5 mm NOTICE When reinstalling a screw you must use a screw of the correct diameter and length Ensure that the screw is properly aligned with its corresponding hole and avoid overtightening Keyboard Palm Rest 4 each 9 each Las H H M2 x 4 mm M2 x 4 mm Display Assembly Keyboard Tray 2 each 5 each Hard Drive System Board 4 each 3 each Modem Card 1 each E H M2 x 3 mm Speakers 1 each Back to Contents Page Cooling Fan 4 each Bluetooth Module 1 each Back to Contents Page Flashing the BIOS
25. t need to completely remove the screws hard drive connector 1 M2 x 5 5 mm screws 4 5 Disconnect the hard drive connector from the system board 6 Lift the hard drive up and out of the bottom case Replacing the Hard Drive 1 Connect the hard drive connector to the system board 2 Position the hard drive on the bottom case and tighten the four M2 x 5 5 mm screws to the bottom case K NOTE The rubber grommets help you avoid overtightening the screws Back to Contents Page Back to Contents Page Keyboard Dell Inspiron 300m Service Manual Removing the Keyboard Replacing the Keyboard Removing the Keyboard A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTICE Disconnect the computer and any attached devices from electrical outlets NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Before You Begin before performing the following procedure 1 Remove the battery 2 Remove the four M2 x 4 mm screws labeled with an arrow from the bottom of the computer ro m a a n M2 x 4 mm screws 4 NOTICE The keycaps on the keyboard are fragile easily dislodged and time consuming to replace Be careful when removing and handling the keyboard 3 Turn the computer over and insert a inch flat blade screwdri
26. tal connector on the back of the computer Continue to ground yourself periodically during this procedure a Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up b Remove the module from the connector memory module securing clips 2 9 Ground yourself and install the new memory module a Align the notch in the module edge connector with the tab in the center of the connector slot b Slide the module firmly into the slot at a 45 degree angle and rotate the module down until it clicks into place If you do not hear the click remove the module and reinstall it K NOTE If the memory module is not installed properly the computer may not boot properly No error message indicates this failure memory module connector 10 Replace the cover NOTICE If the cover is difficult to close remove the module and reinstall it Forcing the cover to close may damage your computer captive screw 2 memory module cover 11 Insert the battery into the battery bay or connect the AC adapter to your computer and an electrical outlet 12 Turn on the computer As the computer boots it detects the additional memory and automatically updates the system configuration information To confirm the amount of memory installed in the computer Inthe Microsoft Windows XP operating system click the Start button click Help and Support an
27. tery 2 Remove the keyboard 3 Remove the palm rest 4 Remove the hinge covers 5 Remove the display assembly 6 Remove the five M2 x 4 mm screws that secure the keyboard tray to the system board K NOTE Each keyboard tray screw has an arrow beside it keyboard tray M2 x 4 mm screws 5 7 Lift the keyboard tray up and slip out the antenna cables before lifting the tray out of the bottom case Replacing the Keyboard Tray 1 Replace the keyboard tray 2 Route the antenna cables through the oval opening on the keyboard tray antenna cable connectors oval opening on keyboard tray 3 Reinstall the five M2 x 4 mm screws that secure the keyboard tray to the system board Back to Contents Page Back to Contents Page Mini Recommended Spares List Dell Inspiron 300m Service Manual K NOTE The part numbers listed below are subject to change Bottom Plastics Assembly C0924 24X CD DO727 24X CD RW Floppy Drive 1R159 floppy drive D module Hard Drive and Accessories D2589 fan Keyboard ECN keyboard us Hinges G0810 left hinge cover H0192 right hinge cover J0045 12 1 LCD hinge up assembly Y0231 56 K V2 internal modem System Board T2907 system board service kit 1 2 GHz non TAA version U2733 system board service kit 1 2 GHz TAA compliant Wireless Screws 98MKC M2 x 4 mm screw 70552 speaker 1 each left or right
28. the problem description Describes the test and may indicate requirements for running the test Configuration Displays your hardware configuration for the selected device The Dell Diagnostics obtains configuration information for all devices from the system setup program memory and various internal tests and it displays the information in the device list in the left pane of the screen The device list may not display the names of all the components installed on your computer or all devices attached to your computer Parameters Allows you to customize the test by changing the test settings 4 When the tests are complete close the test screen to return to the Main Menu screen To exit the Dell Diagnostics and restart the computer close the Main Menu screen Back to Contents Page Back to Contents Page Hinge Covers and Display Assembly Dell Inspiron 300m Service Manual Hinge Covers Display Assembly Hinge Covers Removing the Hinge Covers A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual 1 Remove the battery 2 On the inside of the battery bay use your fingers to unhook the hinge covers from the back of the computer hinge covers 2 3 Open the display 180 degrees 4 Push up on the hinge covers to remove them from the computer Replacing the Hinge Covers 1 Open the computer all the way 180 degrees so that it lies fl
29. ver into the slot to the right of the keyboard locator tab keyboard locator tab 4 Pry up the keyboard locator tab and the keyboard pops up 5 Pull the keyboard a small distance toward the front of the computer to release the four securing tabs located across the back edge of the keyboard 6 Rotate the keyboard toward the front of the computer and place it face down on the palm rest NOTICE Do not pull on the keyboard flex cable 7 Open the ZIF connector on the system board by pulling the ZIF connector tabs toward the back of the computer ZIF connector 1 keyboard flex cable ZIF connector tabs 2 8 Remove the keyboard flex cable from the ZIF connector 9 Lift the keyboard up and out of the computer Replacing the Keyboard 1 Place the keyboard face down on the palm rest with the keyboard flex cable pointing toward the back of the computer NOTICE To avoid damage to the connector pins insert the keyboard flex cable evenly into the ZIF connector on the system board and do not reverse the keyboard flex cable 2 Ensure that the ZIF connector is open by pulling the ZIF connector tabs toward the back of the computer 3 Press the keyboard flex cable into the ZIF connector 4 Close the ZIF connector by pushing the ZIF connector tabs toward the front of the computer To aid with proper flex cable connection a locator line has been added near the end of the flex cable Press the cable into the connect
30. vice Manual Recommended Tools Shutting Down Your Computer Computer Orientation Screw Identification Placemat This section provides procedures for removing and installing the components in your computer Unless otherwise noted each procedure assumes that the following conditions exist You have performed the steps in Shutting Down Your Computer You have read the safety information in your Owner s Manual Recommended Tools The procedures in this document may require the following tools Small flat blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update program floppy disk or CD Shutting Down Your Computer Use the following safety guidelines to help protect your computer from potential damage and to ensure your own personal safety A 5 6 CAUTI ON Before you begin any of the procedures in this section follow the safety instructions in the Owner s Manual NOTI CE Only a certified service technician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty CAUTI ON Handle components and cards with care Do not touch the components or contacts on a card Hold a card by its edges or by its metal mounting bracket Hold a component such as a microprocessor by its edges not by its pins NOTI CE When you disconnect a cable pull on its connector or on its strain relief loop not on the cable itself Some
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