Dell Chromebook 11 3180 Скачать руководство пользователя

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Diagnostic and troubleshooting

This section covers the diagnostics tool and troubleshooting information for field service technicians.

Topics:

•

Basic troubleshooting

•

CROSH

•

CROSH commands

•

Chrome commands

•

Commonly used CROSH command

•

Reset Chromebook

•

Recovery Chromebook

Basic troubleshooting

This page contains all the information for Dell basic troubleshooting

NOTE:

Refer to

Google Help Center

for the online troubleshooter.

NOTE:

Resetting

the Chromebook, also known as Powerwash, can be attempted before

Recovering

the Chromebook.

Recovering the Chromebook is the last resort.

Power issues

Table 8. Power issue

Power issues

Issue

Possible solutions

Chromebook would not Power On

If the Chromebook will not turn on, follow these steps:

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.

If the Chromebook still does not start or exhibits the

same problem, do not reconnect anything, and continue

troubleshooting.

The battery life might be too low. Plug the Chromebook into

the AC adapter and let it charge for at least an hour and try

turning it on again.

NOTE:

When a new Chromebook is used for the

first time, the battery is still in shipping mode.

To resolve this issue, turn off the Chromebook

and plug in the AC adapter and turn on the

Chromebook again.

Depending on the Chromebook you have, you may see a

power indicator light close to the charging port. If you have let

Diagnostic and troubleshooting

Содержание Chromebook 11 3180

Страница 1: ...Chromebook 11 3180 Disassembly and Reassembly Guide For use by Dell Certified Technicians only Regulatory Model P26T Regulatory Type P26T002 ...

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 2017 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 2017 02 Rev A00 ...

Страница 3: ...d 11 Installing keyboard 12 Audio board 13 Removing audio board 13 Installing audio board 13 Power connector port 14 Removing power connector port 14 Installing power connector port 14 Speaker 15 Removing speaker 15 Installing speakers 16 Touchpad panel 16 Removing touchpad 16 Installing touchpad 18 System board 18 Removing system board 18 Installing system board 21 Display assembly 21 Removing di...

Страница 4: ...38 Chrome vs Chromium OS 39 View system information 39 Dell activity light 42 Overview 42 Raise your Hand Answer Question Discussion buttons 43 MultiColor Poll 44 5 Technology and components 45 Keyboard 45 Keyboard keys function 45 Touchpad 47 Integrated microphone 48 Key features 48 Typical applications 48 Bluetooth 48 6 Diagnostic and troubleshooting 50 Basic troubleshooting 50 Power issues 50 C...

Страница 5: ...7 Contacting Dell 79 Contents 5 ...

Страница 6: ...surface such as a connector on the back of the computer CAUTION 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 processor by its edges not by its pins CAUTION When you disconnect a cable pull on its connector or on its pull tab not on the cable itself Some cables have connec...

Страница 7: ...g inside your computer After you complete any replacement procedure ensure you connect any external devices cards and cables before turning on your computer CAUTION To avoid damage to the computer use only the battery designed for this particular Dell computer Do not use batteries designed for other Dell computers 1 Replace the battery 2 Replace the base cover 3 Connect any external devices such a...

Страница 8: ...SD 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 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 mylar cap 1 NOTE The screw cover on the base cover is made up of a mylar sticker To ...

Страница 9: ...c Pry the base cover from the edge NOTE You may need a 3c plastic scribe to pry the base cover from the edge 4 Lift the base cover away from the computer Removing and installing components 9 ...

Страница 10: ...Removing 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 Disconnect the battery cable from the connector on the system board 1 b Remove the M2 0x3 0 screws that secure the battery to the computer 2 c Lift the battery away from the computer 3 Installing battery 1 Insert the battery into the slot on the computer...

Страница 11: ...ow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery 3 To remove keyboard a Disconnect the keyboard cable from the system board 1 b Use the plastic scribe to the release the keyboard 2 NOTE The two release holes for the keyboard are indicated by the KB labeling 4 Slide and lift the keyboard away from the computer Removing and installing compone...

Страница 12: ...bs on the computer and press it until it clicks into place 2 Connect the keyboard cable on the system board 3 Install the a battery b base cover c microSD card 4 Follow the procedure in After working inside your computer 12 Removing and installing components ...

Страница 13: ...0 screw that secures the audio board on the computer 2 c Lift the audio board away from the computer 3 Installing audio board 1 Insert the audio board into the slot on the computer 2 Replace the M2 0x3 0 screw that secure the audio board to the computer 3 Connect the audio cable to the connector on the audio board 4 Install the a battery b base cover c microSD card 5 Follow the procedure in After ...

Страница 14: ...ecure the power connector port on the computer 2 c Slide and lift the power connector port away from the computer 3 Installing power connector port 1 Insert the power connector port into the slot on the computer 2 Replace the M2 0x3 0 screw that secures the power connector port to the computer 3 Connect the power connector cable to the connector on the system board 4 Install the a battery b base c...

Страница 15: ...se cover c battery 3 To remove the speaker a Disconnect the speaker cable from the connector on the system board 1 b Remove the adhesive tape that secures the speaker cable on the computer c Unroute the speaker cable from the routing channel 2 4 Remove the speaker from the computer Removing and installing components 15 ...

Страница 16: ...ector on the system board 5 Install the a battery b base cover c microSD card 6 Follow the procedure in After working inside your computer Touchpad panel Removing touchpad 1 Follow the procedure in Before working inside your computer 2 Remove the a microSD card b base cover c battery d speaker 3 To remove touchpad cable a Lift the latch and disconnect the touchpad cable from the computer 1 b Remov...

Страница 17: ...ure the metal to the touchpad on the computer 1 b Remove the adhesive tape 2 c Slide and remove the metal bracket 3 NOTE Remove the adhesive tape that secures the speaker cable on the metal bracket 5 Remove the touchpad from the computer Removing and installing components 17 ...

Страница 18: ...al bracket 4 Connect the touchpad cable 5 Affix the adhesive tape to secure the speaker cable on the computer 6 Connect the speaker cable to the connector on the system board 7 Install the a speaker b battery c base cover d microSD card 8 Follow the procedure in After working inside your computer System board Removing system board 1 Follow the procedure in Before working inside your computer 2 Rem...

Страница 19: ... cable 2 c touch pad cable 3 4 To disconnect the cable a Disconnect coin cell battery power connector port and speaker cable 1 2 3 b Remove the M2 0xM3 0 screws and lift the metal bracket that secure on the system board 4 5 Removing and installing components 19 ...

Страница 20: ...e system board 1 2 b Disconnect the WLAN cables 3 c Remove the screws M2 0x 30 and lift the metal bracket that secures the display cable on the computer 4 5 d Lift the latch and disconnect the cable 6 6 Remove the M2 x3 0 screws and lift system board away from the computer 1 2 20 Removing and installing components ...

Страница 21: ...M2 0x3 0 screws to secure on the system board 8 Connect the following cables a power connector cable b touchpad cable c keyboard cable d speaker cable e power board and audio cable f sensor cable 9 Install the a battery b base cover c microSD card 10 Follow the procedure in After working inside your computer Display assembly Removing display assembly 1 Follow the procedure in Before working inside...

Страница 22: ...card on the system board 1 2 b Disconnect the WLAN cables 3 c Turn over the computer 4 5 To remove the display assembly a Remove the display hinge screws M2 0xM5 0 that secure the display assembly to the computer 1 b Lift the display assembly away from the computer 2 22 Removing and installing components ...

Страница 23: ...the connector on the system board 5 Place the metal bracket over the display cable connector and tighten the M2 0x3 0 screws to secure the display cable to the computer 6 Connect the WLAN cables 7 Place the metal bracket and tighten the M2 0x3 0 screw to the WLAN cable on the system board 8 Install the a battery b base cover c microSD card 9 Follow the procedure in After working inside your comput...

Страница 24: ... the display bezel from the display assembly Installing display bezel 1 Place the display bezel on the display assembly 2 Starting from the top corner press on the display bezel and work around the entire bezel until it clicks on to the display assembly 3 Replace the M2 0x3 5 screws to secure the display bezel to the display assembly 4 Affix the hinge cap 5 Install the a battery b base cover c mic...

Страница 25: ... display assembly e display bezel 3 Remove the M2 0x3 0 screws that secure the display panel to the display assembly 1 and lift to turn over the display panel to access the eDP cable 2 4 To remove display panel a Peel off the adhesive tape 1 b Disconnect the display cable from the connector on the display panel 2 Removing and installing components 25 ...

Страница 26: ...he display assembly 4 Install the a display bezel b display 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 display hinge 26 R...

Страница 27: ... the display hinge cover to the display assembly 3 Install the a display panel b display bezel c display assembly d battery e base cover f microSD card 4 Follow the procedure in After working inside your 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 ...

Страница 28: ... Lift the camera away from the display 2 Display back cover Removing display back cover 1 Follow the procedure in Before working inside your computer 2 Using the plastic scribe pry the edges of the display back cover 28 Removing and installing components ...

Страница 29: ...3 Remove the display back cover away from the computer Removing and installing components 29 ...

Страница 30: ... board c Camera module d Wireless Antennas Main Aux e Right Display Hinge f Left Display Hinge Installing display back cover 1 Align the display back cover with the tabs on the computer and press it until it clicks into place 2 Follow the procedure in After working inside your computer Installing camera 1 Place the camera on the display assembly 2 Connect the camera cable to the connector on the d...

Страница 31: ... microSD card b base cover c battery d keyboard e audio f power connector g speaker h touchpad i display assembly j system board NOTE The component you are left with is the palm rest 3 Install the following components on the new palm rest a system board b display assembly c touchpad d speaker e power connector f audio g keyboard Removing and installing components 31 ...

Страница 32: ...h battery i base cover j microSD card 4 Follow the procedure in After working inside your computer 32 Removing and installing components ...

Страница 33: ...768 eDP 200 nits Anti Glare Graphics Intel HD Graphics 500 Memory LPDDR3 2 GB LPDDR3 4 GB AC Adapter 65 W Dell E4 series AC adapter Battery 3 cell lithium ion 42 Whr Rechargeable Audio Codec Realtek I2S based codec ALC5650 Integrated Microphone Akustica AKU240 digital output MEMS microphone Primary Storage 16 GB 32 GB Build in eMMC storage Connectivity Intel Dual Band Wireless AC 7265 802 11AC Blu...

Страница 34: ...with NBD Onsite Premium Phone Support In Home 1 4 years warranty extension options Multiple Display Options A connector is available for an external HDMI display up to 1080p Dock Options N A Regulatory and Environmental Compliance Regulatory and product certification for US and EMEA 34 Product Specification ...

Страница 35: ...ystem This page contains information about the operating system used by the Dell Chromebook 11 3180 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 4 Sof...

Страница 36: ...Core processors 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 i...

Страница 37: ... 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 Software 37 ...

Страница 38: ...a 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 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 secon...

Страница 39: ... 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 11 3180 does not support Dell BIOS Hence there are several ways to check system specifications depending on the information you are s...

Страница 40: ...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 40 Software ...

Страница 41: ...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 Software 41 ...

Страница 42: ...ll Activity Light Overview Dell Activity Light can be used as an indicator for the interaction between school teacher and student and Dell has designed a software over this feature The application will not be factory installed when product RTS but it can be downloaded and installed via the web store through the following link https chrome google com webstore detail dell led klhphccnhmdlnljpdljjheh...

Страница 43: ...Discussion buttons Students can either click the on screen button or press keyboard hot key to on off the Ask question LED The on screen button can be the Chrome application in the menu or the shortcut icon on the task bar Software 43 ...

Страница 44: ...MultiColor Poll Students can vote with different LED color by either clicking the on screen button suggested or pressing keyboard hot key 44 Software ...

Страница 45: ...a new 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 5 Special keys Special key...

Страница 46: ...cut 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 you clicked in a new background tab Press Alt a...

Страница 47: ...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 multiple browser tabs open you can also swipe left and right with three fingers to quickly...

Страница 48: ...c performance with 63 dB SNR Compatible with Microsoft Windows 8 and Intel Ultrabook Requirements for Digital Microphones Tightly controlled sensitivity of 26 dBFS 2 dB Robust digital output immune to RF EM interference Matched microphones in frequency and phase response for array applications Output supports dual microphone single wire multiplexing Industry standard microphone interface compatibl...

Страница 49: ... devices and click Connect 6 Follow the instructions on the screen to connect your Bluetooth device If you are connecting a mouse no PIN is normally required If you are prompted for a PIN enter the PIN for your mouse using your Chrome device s keyboard If you are connecting a keyboard enter the randomly generated PIN on the keyboard you wish to pair and press Enter To confirm that your Bluetooth d...

Страница 50: ...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 51: ...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 52: ...sue 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 ...

Страница 53: ...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 54: ... 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 55: ...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 56: ...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 57: ...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 58: ...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 59: ...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 59 ...

Страница 60: ...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 60 Diagnostic and troubleshooting ...

Страница 61: ...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 62: ... 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 62 Diagnostic and troubleshooting ...

Страница 63: ...oot a hardware 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...

Страница 64: ...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 64 Diagnostic and troubleshooting ...

Страница 65: ...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 65 ...

Страница 66: ...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 66 Diagnostic and troubleshooting ...

Страница 67: ...5 A diagnostic screen displays the result of the memory test passed without any errors Example of a memory test failure Diagnostic and troubleshooting 67 ...

Страница 68: ...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 68 Diagnostic and troubleshooting ...

Страница 69: ...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 69 ...

Страница 70: ...es with your 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 i...

Страница 71: ...1 Click the status area in the lower right corner where your account picture appears Diagnostic and troubleshooting 71 ...

Страница 72: ...2 Click Settings as highlighted from the screenshot below 72 Diagnostic and troubleshooting ...

Страница 73: ...3 Click Show advanced settings to expand the menu Diagnostic and troubleshooting 73 ...

Страница 74: ...4 Click the Powerwash button 74 Diagnostic and troubleshooting ...

Страница 75: ... 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 Chromebook 11 3180 Recovering the Chromebook Install a new version of the Chrome operating system on your Chromebook by going through the r...

Страница 76: ...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 77: ...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 78: ... 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 79: ... 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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