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Dell Chromebook 5190, Руководство пользователя

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Dell Chromebook 5190 Скачать руководство пользователя страница 71

4

Press CTRL + ALT + T to open CROSH.

5

Type battery_test 1 into CROSH, and then press Enter.

6

A screen displays the current battery health and discharge rate.

•

If the Battery health percentage is greater than 50%, the battery is within the expected wear limits.

•

If the Battery health percentage is equal to or less than 50% and the battery is less than a year old, the battery is outside expected 

wear limits and might need to be replaced.

Diagnostic and troubleshooting

71

Содержание Chromebook 5190

Страница 1: ...Chromebook 5190 Owners Manual Regulatory Model P28T Regulatory Type P28T001 ...

Страница 2: ...amage to hardware or loss of data and tells you how to avoid the problem WARNING A WARNING indicates a potential for property damage personal injury or death 2018 Dell Inc or its subsidiaries All rights reserved Dell EMC and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners 2018 02 Rev A00 ...

Страница 3: ...stalling the base cover 12 Battery 12 Removing the battery 12 Installing the battery 15 Speaker 15 Removing speaker 15 Installing speaker 17 WLAN card 17 Removing WLAN card 17 Installing WLAN card 18 Input Output board 19 Removing Input Output board 19 Installing Input output board 20 Touchpad 21 Removing the touchpad 21 Installing the touchpad 23 Keyboard 23 Removing keyboard 23 Installing keyboa...

Страница 4: ...s function 43 Touchpad 45 Bluetooth 46 4 Product specification for Chromebook 5190 47 5 Software 48 Operating system 48 Chrome OS 48 Verified Boot 49 Disk Partition Map 50 Developer and Recovery mode 51 Coreboot and U boot Custom Firmware 51 Chrome vs Chromium OS 52 View system information 52 6 Diagnostic and troubleshooting 56 Basic troubleshooting 56 Power issues 56 CROSH 60 CROSH commands 61 Ch...

Страница 5: ... advanced power management features Unplugging pressing and holding the power button for 15 seconds should discharge residual power in the system board notebooks Bonding Bonding is a method for connecting two or more grounding conductors to the same electrical potential This is done through the use of a field service electrostatic discharge ESD kit When connecting a bonding wire ensure that it is ...

Страница 6: ...and bonding wire can be either directly connected between your wrist and bare metal on the hardware if the ESD mat is not required or connected to the anti static mat to protect hardware that is temporarily placed on the mat The physical connection of the wrist strap and bonding wire between your skin the ESD mat and the hardware is known as bonding Use only Field Service kits with a wrist strap m...

Страница 7: ...offsetting the force of the load 3 Lift with your legs not your back 4 Keep the load close The closer it is to your spine the less force it exerts on your back 5 Keep your back upright whether lifting or setting down the load Do not add the weight of your body to the load Avoid twisting your body and back 6 Follow the same techniques in reverse to set the load down Before working inside your compu...

Страница 8: ...nect any external devices such as a port replicator or media base and replace any cards such as an ExpressCard 4 Connect any telephone or network cables to your computer CAUTION To connect a network cable first plug the cable into the network device and then plug it into the computer 5 Connect your computer and all attached devices to their electrical outlets 6 Turn on your computer 8 Working on y...

Страница 9: ...ter Installing microSD card 1 Slide the SD card into its slot until it clicks into place 2 Install the microSD card 3 Follow the procedure in After working inside your computer Base cover Removing the base cover 1 Follow the procedure in Before working inside your computer 2 Remove the microSD card 3 To remove the base cover a Remove the 9 M2 5x7 5 screws that secure the base cover to the system 2...

Страница 10: ...b Pry the base cover from the edge using a plastic scribe 1 and lift the base cover from the system 2 10 Removing and installing components ...

Страница 11: ...c Lift the base cover away from the system Removing and installing components 11 ...

Страница 12: ...nside your computer Battery Removing the battery 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover 3 To remove the battery a Remove the single M2x3 screw and lift the right metal bracket that secures the battery cable to the system board 1 2 b Peel the adhesive tape that secures the keyboard cable in place 3 c Disconnect the keyboard cable from ...

Страница 13: ... lift the left metal bracket that secures the battery cable to the connector on the battery 1 2 e Unroute the battery cable 3 f Peel the adhesive that secures the battery cable to the system board 4 Removing and installing components 13 ...

Страница 14: ...g Remove the 3 M2x3 screws that secure the battery to the system 1 h Lift the battery away from the system 2 14 Removing and installing components ...

Страница 15: ...ery 6 Replace the 2 M2x3 screws one on each metal bracket to secure each bracket to the system 7 Install the a base cover b microSD card 8 Follow the procedure in After working inside your computer Speaker Removing speaker 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery 3 To remove the speaker a Disconnect the speaker cable from the ...

Страница 16: ...d Lift the speaker away from the system 16 Removing and installing components ...

Страница 17: ... the procedure in After working inside your computer WLAN card Removing WLAN card 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery 3 To remove the WLAN card a Remove the single M2x3 screw that secures the WLAN card bracket to the system 1 b Remove the WLAN card bracket that secures the WLAN antenna cables 2 c Disconnect the WLAN anten...

Страница 18: ...ors on the WLAN card 3 Place the WLAN card bracket to secure the WLAN cables to the WLAN card 4 Replace the single M2x3 screw to secure the WLAN card bracket to the system 5 Install the a battery b base cover c microSD card 6 Follow the procedure in After working inside your computer 18 Removing and installing components ...

Страница 19: ...d disconnect the two I O cables from the connector on the I O board 1 b Remove the 2 M2x4 screws that secure the I O bracket to the system 2 c Open the I O bracket up to 90 backward and release the bracket from the slot on the system 3 d Lift the bracket away from the system e Remove the 2 M2x3 screws that secure the I O board to the system 1 f Lift the I O board away from the system 2 Removing an...

Страница 20: ...rd to the system board 3 Connect the two I O cables and close the latch to secure it to the I O board 4 Place the I O bracket and replace the 2 M2x4 screws to secure the bracket to the system 5 Install the a battery b base cover c microSD card 6 Follow the procedure in After working inside your computer 20 Removing and installing components ...

Страница 21: ...ery 3 To remove the touchpad a Remove the 3 M2x3 screws that secure the touchpad bracket to the system 1 b Remove the touchpad bracket 2 c Lift the latch and disconnect the touchpad cable from the connector in the touchpad frame 1 d Peel the adhesive tape that secures the touchpad frame to the system 2 Removing and installing components 21 ...

Страница 22: ...e Remove the 3 M2x2 screws that secure the touchpad frame to the system 1 f Lift the touchpad away from the system 2 22 Removing and installing components ...

Страница 23: ...ystem 7 Install the a battery b base cover c microSD card 8 Follow the procedure in After working inside your computer Keyboard Removing keyboard 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery 3 To remove the keyboard a Release the latch and disconnect the keyboard cable from the connector on the system board 1 b Use a plastic scrib...

Страница 24: ...c Turn the system and carefully pull the keyboard cable through the gap in the palm rest d Lift the keyboard away from the system 24 Removing and installing components ...

Страница 25: ...tem 2 Align the keyboard trim with the tabs on the system and press it until it clicks into place 3 Turn the system and connect the keyboard cable to the connector on the system board 4 Install the a battery b base cover c microSD card 5 Follow the procedure in After working inside your computer Removing and installing components 25 ...

Страница 26: ...board 2 c Release the tabs and disconnect the keyboard cable from the connector on the system board 3 d Disconnect speaker cable from the connector on the system board 4 e Remove the single M2x4 screw that secures the eDP bracket to the system board 1 f Remove the eDP bracket away from the system 2 g Peel the adhesive tape that secures the eDP cable to the system board 3 h Lift the latch and disco...

Страница 27: ...ngle M2x4 screw that secures the system board bracket to the system 1 k Lift the system board bracket 2 and release the hook on the bracket from the retention tab in the system 3 Removing and installing components 27 ...

Страница 28: ...l Remove the 3 M2x3 screws that secure the system board to the system 1 m Lift the system board away from the system 2 28 Removing and installing components ...

Страница 29: ...e to the connector in the system board 9 Connect the 2 Input Output cable touchpad cable and keyboard cable to the connectors on the system board 10 Install the a battery b base cover c microSD card 11 Follow the procedure in After working inside your computer Display assembly Removing display assembly 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base...

Страница 30: ...f Turn the system 30 Removing and installing components ...

Страница 31: ... the screw holders on the system 3 Replace the 6 display hinge bracket screws to secure the display assembly to the system 4 Lift the system and close the display 5 Connect the eDP cable to the connector on the system board 6 Affix the adhesive tape to secure the eDP cable to the system 7 Place the eDP metal bracket to secure the eDP cable 8 Replace the single screw to secure the eDP bracket to th...

Страница 32: ... 2 Remove the a microSD card b base cover c battery d display assembly 3 To remove the display bezel a Remove the mylar cap that secures the display bezel to the display assembly b Remove the 4 M2x3 5 screws that secure the display bezel to the display assembly 32 Removing and installing components ...

Страница 33: ...c Pry the edges to release the display bezel from the display assembly Removing and installing components 33 ...

Страница 34: ...l 5 Install the a display assembly b battery c base cover d microSD card 6 Follow the procedure in After working inside your computer Display panel Removing display panel 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery d display assembly e display bezel 3 To remove the display panel a Remove the 4 M2x3 screws that secure the display ...

Страница 35: ...Peel the adhesive tape that secures the eDP cable to the display panel 1 c Lift the latch and disconnect the display cable from the connector in the display panel 2 3 Removing and installing components 35 ...

Страница 36: ...d Lift the display panel away from the display assembly 36 Removing and installing components ...

Страница 37: ...ay assembly c battery d base cover e microSD card 5 Follow the procedure in After working inside your computer Display hinges Removing display hinge 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery d display assembly e display bezel f display panel 3 To remove the display hinge a Remove the 2 M2x3 screws and 4 M2 5x2 5 screws that sec...

Страница 38: ...e display assembly Installing display hinge 1 Place the display hinge cover on the display assembly 2 Replace the 2 M2x3 screws and 4 M2 5x2 5 screws to secure the display hinge to the display assembly 38 Removing and installing components ...

Страница 39: ...splay cable Removing display cable 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery d display assembly e display bezel f display panel 3 To remove the display cable a Unroute the display cable from the display assembly 1 b Remove the display cable from the system 2 Removing and installing components 39 ...

Страница 40: ...ur computer Camera Removing camera 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery d display assembly e display bezel f display panel 3 To remove the camera a Use a plastic scribe to pull the camera out from the chassis 1 b Peel the adhesive tape that secures the camera to the chassis 2 c Disconnect the camera cable from the connecto...

Страница 41: ...splay assembly 3 Affix the adhesive tape to secure the camera cable to the system 4 Install the a display panel b display bezel c display assembly d battery e base cover f microSD card 5 Follow the procedure in After working inside your computer Palm rest Replacing palmrest 1 Follow the procedure in Before working inside your computer 2 Remove the Removing and installing components 41 ...

Страница 42: ...sembly 3 The component you are left with is the palmrest 4 Install the following in the palmrest a display assembly b system board c keyboard d touchpad e WLAN card f input and output board g speaker h battery i base cover j microSD card 5 Follow the procedure in After working inside your computer 42 Removing and installing components ...

Страница 43: ...ew row of web shortcut keys A standard USB Windows keyboard can also be used with the Chromebook using the same keyboard shortcuts The image below shows the keyboard layout Keyboard keys function The Chrome device keyboard is designed to help you get to the things you need the most The table below is an overview of the special keys on the top row of the keyboard Table 1 Special keys Special keys G...

Страница 44: ... located Keyboard shortcut keys Table 2 Shortcut keys Shortcut keys Function Combination keys Page up Press Alt and the up arrow Page down Press Alt and the down arrow Home Press Ctrl Alt and the up arrow End Press Ctrl Alt and the down arrow Delete Press Alt Backspace Toggle the bookmark bar Ctrl Shift B Search current webpage Ctrl F Open a new tab Ctrl T Open a new window Ctrl N Open the link yo...

Страница 45: ...f the touchpad Since tap to click is enabled by default you can quickly tap the touchpad to click Click the touchpad with two fingers Place two fingers on the touchpad and move them up and down to scroll vertically left and right to scroll horizontally If you have Australian scrolling enabled move two fingers up to scroll down It works in the same way as say your smartphone or tablet If you have m...

Страница 46: ...tus area in the lower right corner where your account picture appears 3 Select your Bluetooth status in the menu that appears 4 If Bluetooth is disconnected click the disconnected icon or click Enable Bluetooth in the menu Your Chromebook will automatically begin scanning for available Bluetooth devices 5 Pick the device you want to add from the list of available Bluetooth devices and click Connec...

Страница 47: ...D 16 9 1366 X 768 Anti Glare non touch Storage options 16GB eMMC 32GB eMMC 64GB eMMC Multimedia High Quality Speakers Headphone Headset Microphone combo jack Integrated digital microphone 1 on the bezel Integrated HD video webcam Battery options 42 Whr 3 Cell Prismatic No ExpressCharge Power adapter 45 W USB C adapter Connectivity Intel Dual Band Wireless AC 7265 802 11AC 2x2 Wi Fi BT 4 2 LE M 2 C...

Страница 48: ...nformation about the operating system used by the Dell Chromebook 5190 Chrome OS Chromebooks are powered by the Google Chrome operating system based on Google s popular Chrome browser It has been developed to provide a fast simple and more secure computing experience for users who spend most of their time online Key Benefits Speed Simplicity Security Updatability Syncronisability 5 48 Software ...

Страница 49: ...cessors Fun games Built in support for popular file types and external devices For more information about the Chrome OS please visit the Chrome OS training page Verified Boot Read Only firmware verifies the integrity of Read Write R W firmware R W firmware verifies the active Linux kernel During run time the kernel verifies each block read from disk If a verification step fails and there is no bac...

Страница 50: ... Partition Map There are two copies of Chrome OS on disk an active copy and a backup copy Each copy consists of a kernel partition and a root file system The backup copy is updated automatically in the background Users only need to reboot The partition contains encrypted user data and is also used in the factory for storing test software 50 Software ...

Страница 51: ...USB key or SD card Recovery mode is entered if verified boot fails A user can force recovery mode via a key combination during boot Coreboot and U boot Custom Firmware Coreboot x86 only Memory and chipset initialization Open source except for MRC binary from Intel U Boot Performs verified boot Handles recovery and Developer Mode Open source code Normal boot is very fast as it takes less than 1 sec...

Страница 52: ...O firmware recovery button developer switch Includes additional licensed features such as the Netflix plugin video codecs and fonts View system information This page contains all the information about viewing system information for the Dell Chromebook Dell Chromebook 5190 does not support Dell BIOS Hence there are several ways to check system specifications depending on the information you are sea...

Страница 53: ...ion Commands Action and Purpose Screenshot Chrome help View basic OS information Chrome settings View information such as screen resolution options Device Display settings touchpad and other basic hardware information Software 53 ...

Страница 54: ...on and Purpose Screenshot Chrome system View advanced system information such as the Google Chrome version BIOS information CPU information memory information network status power supply information etc 54 Software ...

Страница 55: ...Commands Action and Purpose Screenshot Chrome net internals View advanced networking information Software 55 ...

Страница 56: ...ower On If the Chromebook will not turn on follow these steps 1 Remove all external devices a If the Chromebook starts reconnect devices one at a time while restarting the computer to figure out which device is causing the problem You are done b If the Chromebook still does not start or exhibits the same problem do not reconnect anything and continue troubleshooting 2 The battery life might be too...

Страница 57: ...set or Recover the Chromebook Audio screen and camera issues Table 10 Audio screen and camera issues Audio screen and camera issues Issues Possible solutions Audio issues If you hear static or the volume from the speakers is low when attempting to listen to audio 1 Make sure the device is not muted Try adjusting the volume 2 Try rebooting the Chromebook 3 Try playing audio from various sources inc...

Страница 58: ...Possible solutions Bluetooth issues If you run into issues while attempting to pair or use a Bluetooth device with the Chromebook try the following steps to resolve the issue 1 First make sure that the Bluetooth device you are trying to pair is supported by the Chromebook 2 Try disabling and re enabling Bluetooth connectivity from the status area in the lower right corner 3 Try restarting the Chro...

Страница 59: ...t 5 If users experience hotkey issues with the account that is not the owner primary account delete the user account and re create it 6 If none of the above steps work try to Reset or Recover the Chomebook Chrome OS issue Table 13 Chrome OS issue Chrome OS issues He s Dead Jim error message If the Chromebook becomes slow or unresponsive and the He s Dead Jim error message appears the system could ...

Страница 60: ... the above symptoms match the Chromebook s issue refer to Google Help Center for the online troubleshooter and more help CROSH This topic covers the information you need to know for the Chrome Shell CROSH CROSH and the Google Chrome URL commands provide some troubleshooting tools information and advanced settings The Chrome OS does not support ePSA Dell BIOS the F12 boot menu or DellConnect There ...

Страница 61: ...commands used for debugging ping c count i interval n s packetsize W waittime Sends ICMP ECHO_REQUEST packets to a network host If is gw then the next hop gateway for the default route is used It works just like the ping command on other operating systems Press Clrt C to stop the ping process or halt any other command in CROSH ssh optional args Starts the ssh subsystem if invoked without any argum...

Страница 62: ...rs in the network and shares the downloaded updates with them Run this command without arguments to see the current state rlz status enable disable Enables or disables RLZ rollback Attempts to roll back to the previous update cached on your system Only available on non stable channels and non enterprise enrolled devices Please note that this will power wash your device route n 6 Displays the routi...

Страница 63: ...umber of milliseconds before autorepeat starts The rate is the number of repeats per second xset r keycode on off Turns autorepeat on off If a keycode is specified it affects only that key If not specified it affects global behavior Chrome commands Chrome pages contain experimental features diagnostic tools and detailed statistics They are hidden in Chrome s user interface Chrome about page lists ...

Страница 64: ...nnectivity diagnostics including DNS analysis Waterfall and Bandwidth diagnostics and so on Histogram chrome histograms Actual work and I O audit Credits chrome credits References to all module libs contributions and their respective wiki license URLs Crash Reporting chrome crashes Shows detailed crash report if the feature was enabled Apps RAM Utilization chrome appcache internals Detailed memory...

Страница 65: ...e hidden in the Google Chrome browser Please note that as mentioned on this page since these are experimental these might not work as expected and might cause issues Enable these features and use it at your own risk chrome dns This displays the list of hostnames for which the browser will prefetch the DNS records Diagnostic and troubleshooting 65 ...

Страница 66: ...ilable from the Menu Downloads Shortcut key is Ctrl J chrome extensions This is also available from the Menu Tools Extensions chrome bookmarks This is also available from the Menu Bookmarks Bookmark Manager Short cut key is Ctrl Shift O 66 Diagnostic and troubleshooting ...

Страница 67: ...ss name and the memory it takes chrome net internals This displays all networking related information Use this to capture network events generated by the browser You can also export this data You can view DNS host resolver cache One of the important features in this feature is Test If a URL failed to load you can go to chrome net internals click on Tests tab type that URL which failed and click on...

Страница 68: ... how much space the individual websites took under temporary files chrome sessions This displays the number of sessions and magic list that are currently running chrome settings This is also available from the Menu Options on Windows and Menu Preferences on Linux From here you can control various browser related settings 68 Diagnostic and troubleshooting ...

Страница 69: ...ware issue NOTE CROSH storage_test_1 and storage_test_2 are not supported on the eMMC storage device Check battery charging status The Chrome Shell CROSH includes a simple battery health diagnostic test This is to confirm that the battery is charging and to check on the battery health and discharge rate Follow the instruction provided to check on the battery charging status 1 Connect the AC adapte...

Страница 70: ...hat the battery is charging Check battery health Follow the steps to evaluate the health of the Chromebook battery and check the discharge rate 1 Disconnect the AC adapter from the Chromebook 2 Turn on and sign in to Chromebook 3 Open the Chrome browser 70 Diagnostic and troubleshooting ...

Страница 71: ...alth and discharge rate If the Battery health percentage is greater than 50 the battery is within the expected wear limits If the Battery health percentage is equal to or less than 50 and the battery is less than a year old the battery is outside expected wear limits and might need to be replaced Diagnostic and troubleshooting 71 ...

Страница 72: ...erform a memory check for Chromebook NOTE This will approximately take 20 minutes to complete the test and it also depends on the capacity of the memory 1 Turn on and sign in to Chromebook 2 Open the Chrome browser 3 Press CTRL ALT T to open CROSH 4 Type memory_test into CROSH and then press Enter 72 Diagnostic and troubleshooting ...

Страница 73: ...5 A diagnostic screen displays the result of the memory test passed without any errors Example of a memory test failure Diagnostic and troubleshooting 73 ...

Страница 74: ...ing sections to test the network adapter Follow the instruction to gather the information about the network and diagnose the network errors 1 Turn on and sign in to Chromebook 2 Open the Chrome browser 3 Press CTRL ALT T to open CROSH 4 Type network_diag into CROSH and then press Enter 74 Diagnostic and troubleshooting ...

Страница 75: ...orms a set of network diagnostic tests A diagnostic screen displays the results of the network adapter health test 6 The diagnostic test log is saved as a txt plain text file in the Files app Diagnostic and troubleshooting 75 ...

Страница 76: ...ur user profile NOTE All data stored on your Chromebook such as downloaded files photos owner permissions and saved networks will be deleted for all accounts when performing a factory reset After clearing this data you will be guided through the initial setup again Resetting your device will not affect your accounts themselves or any data synced to these accounts NOTE Do not follow the instruction...

Страница 77: ...1 Click the status area in the lower right corner where your account picture appears Diagnostic and troubleshooting 77 ...

Страница 78: ...2 Click Settings as highlighted from the screenshot below 78 Diagnostic and troubleshooting ...

Страница 79: ...3 Click Show advanced settings to expand the menu Diagnostic and troubleshooting 79 ...

Страница 80: ...4 Click the Powerwash button 80 Diagnostic and troubleshooting ...

Страница 81: ...ow see the setup screen Follow the instructions on the screen to set up your Chromebook again Make sure you sign in with your primary Google Account because this account is set as the owner account Recovery Chromebook This page contains information about recovering Dell Recovering the Chromebook Install a new version of the Chrome operating system on your Chromebook by going through the recovery p...

Страница 82: ...ating System Instructions Chrome Device Instructions Create a recovery flash drive by using the Image Burner The tool may not be available in all languages 1 Type chrome imageburner into the omnibox browser s address bar 2 Run the tool and follow the instructions that appear on your screen NOTE When recovering your Chromebook make sure to create the recovery flash drive on the same model Windows I...

Страница 83: ...start your Chromebook as normal Because the data stored on your Chromebook has been cleared you will need to go through the initial setup again Make sure you sign in with your primary Google Account because this account will be set as the owner account Chrome OS verification is turned off Message By default Chromebooks are set to the normal user mode If you ve set the user mode to developer mode i...

Страница 84: ... above You successfully recovered your Chromebook but now you can not use your USB or SD card with Windows After you have completed recovery you need to format your USB or SD card using the recovery tool You successfully recovered your Chromebook but now Windows does not recognize the whole size of the USB or SD card used for recover After you have completed recovery you need to format your USB or...

Страница 85: ... service options Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues 1 Go to Dell com support 2 Select your support category 3 Verify your country or region in the Choose a Country Region drop down list at the bottom of the page 4 Select the appropriate service or support link based on...

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