Inspiron 3195 2-in-1 Service Manual Regulatory Model: P31T Regulatory Type: P31T001
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage 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. © 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents 1 Safety instructions......................................................................................................................................... 6 Before working inside your computer..............................................................................................................................6 Before you begin .........................................................................................................................................................
Removing the power-adapter port.......................................................................................................................... 30 Installing the power-adapter port............................................................................................................................ 30 Display assembly...............................................................................................................................................................
System setup options......................................................................................................................................................60 Clearing CMOS settings................................................................................................................................................. 63 Clearing BIOS (System Setup) and System passwords..............................................................................................63 5 Troubleshooting.....
1 Safety instructions Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety. WARNING: Before working inside your computer, read the safety information that shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. WARNING: Disconnect all power sources before opening the computer cover or panels.
Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable. Two recognized types of ESD damage are catastrophic and intermittent failures. • Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate and complete loss of device functionality.
The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts should never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag.
2 Removing and installing components Recommended tools The procedures in this document may require the following tools: • Philips screwdriver #1 • Flat-head screwdriver • Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.
Component Secured to Screw type Quantity Display hinges Display back-cover M2x2 2 Display hinges Display back-cover M2.5x2.5 3 Screw image Base cover Removing the base cover Prerequisite 1 Follow the procedure in Before working inside your computer. About this task The following image indicates the location of the base cover and provides a visual representation of the removal procedure.
Removing and installing components 11
Steps 1 Loosen the three captive screws on the base cover. 2 Remove the five screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly. 3 Using a plastic scribe, pry the base cover starting from the top-left corner of the palm-rest and keyboard assembly. 4 Lift the base cover off the palm-rest and keyboard assembly. Installing the base cover Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure.
Next step 1 Follow the procedure in After working inside your computer. Battery Lithium-ion battery precautions CAUTION: • Exercise caution when handling Lithium-ion batteries. • Discharge the battery as much as possible before removing it from the system. This can be done by disconnecting the AC adapter from the system to allow the battery to drain. • Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
Steps 1 Remove the screw (M2x3) that secures the battery to the system board and palm-rest and keyboard assembly. 2 Disconnect the battery cable from the system board. 3 Lift the battery off the palm-rest and keyboard assembly. 4 Turn the computer over, open the display, and then press and hold the power button for five seconds to ground the system board.
Installing the battery Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the battery and provides a visual representation of the installation procedure. Steps 1 Replace the screw (M2x3) that secures the battery to the system board and the palm-rest and keyboard assembly. 2 Connect the battery cable to the system board. Next steps 1 Install the base cover.
Steps 1 In the reverse sequential order as indicated on the heat sink (4>3>2>1), loosen the four captive screws that secure the heat sink to the system board. 2 Lift the heat sink off the system board. Installing the heat sink Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the heat sink and provides a visual representation of the installation procedure.
Steps 1 Place and align the screw holes on the heat sink with the screw holes on the system board. 2 In sequential order (as indicated on the heat sink), tighten the four captive screws that secure the heat sink to the system board. Next step 1 Install the battery. 2 Install the base cover. 3 Follow the procedure in After working inside your computer. Memory module Removing the memory module Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover.
Steps 1 Lift the Mylar to access the memory module. 2 Use your fingertips to carefully spread apart the securing-clips on each end of the memory-module slot until the memory module pops up. 3 Remove the memory module from the memory-module slot. Installing the memory module Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1 Lift the Mylar to access the memory-module slot. 2 Align the notch on the memory module with the tab on the memory-module slot. 3 Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place. If you do not hear the click, remove the memory module and reinstall it. Next step 1 Install the heat sink. 2 Install the battery. 3 Install the base cover. 4 Follow the procedure in After working inside your computer.
Steps 1 Peel the black adhesive tape to detach the sensor-board cable from the I/O-board cable. 2 Lift the latches and disconnect the I/O-board cable from both the system board and the I/O board. Installing the I/O-board cable Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the I/O-board cable and provides a visual representation of the installation procedure.
Steps 1 Slide the I/O-board cable into its connectors on the system board and the I/O board, and press down on the latches to secure the cable. 2 Adhere the sensor-board cable to the I/O-board cable. Next steps 1 Install the battery. 2 Install the base cover. 3 Follow the procedure in After working inside your computer. WLAN card Removing the WLAN card Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover. 3 Remove the battery.
Steps 1 Remove the screw (M2x3.5) that secures the WLAN-card bracket to the WLAN card and the palm-rest and keyboard assembly.. 2 Lift the WLAN-card bracket off the WLAN card. 3 Disconnect the antenna cables from the WLAN card. 4 Slide and remove the WLAN card from the WLAN-card slot. Installing the WLAN card Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure.
CAUTION: To avoid damage to the WLAN card, do not place any cables under it. Steps 1 Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card supported by your computer. Table 2.
Removing the coin-cell battery Prerequisite 1 Follow the procedure in Before working inside your computer. CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is recommended that you note the BIOS setup program’s settings before removing the coin-cell battery. 2 Remove the base cover. 3 Remove the battery. 4 Remove the I/O-board cable.
Steps 1 Adhere the coin-cell battery to the palm-rest and keyboard assembly. 2 Route the coin-cell battery cable through the routing guide on the speaker. 3 Connect the coin-cell battery cable to the system board. Next step 1 Install the I/O-board cable. 2 Install the battery. 3 Install the base cover. 4 Follow the procedure in After working inside your computer. Speaker Removing the speaker Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover.
Steps 1 Remove the coin-cell battery cable from the routing guide on the speaker. 2 Disconnect the speaker cable from the system board. 3 Note the position of the rubber grommets and release the rubber grommets from the slots on the palm-rest and keyboard assembly. 4 Release the speaker from the alignment posts and lift the speaker off the palm-rest and keyboard assembly.
Steps 1 Using the alignment posts, place and align the speaker on the palm-rest and keyboard assembly and press it down evenly. NOTE: The rubber grommets may get pushed out while you are installing the speaker. Ensure that the rubber grommets are in their position after you place the speaker on the palm-rest and keyboard assembly. 2 Connect the speaker cable to the system board. 3 Route the coin-cell battery cable through the routing guide on the speaker. Next step 1 Install the I/O-board cable.
Removing the I/O board Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover. 3 Remove the battery. About this task The following image indicates the location of the I/O board and provides a visual representation of the removal procedure. Steps 1 Peel off the two tapes that secure the sensor-board cable to the left hinge and the I/O board cable. 2 Open the latch and disconnect the sensor-board cable from the I/O board.
Installing the I/O board Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the I/O board and provides a visual representation of the installation procedure. Steps 1 Place and align the I/O board on the palm-rest and keyboard assembly. 2 Replace the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly.
Next step 1 Install the battery. 2 Install the base cover. 3 Follow the procedure in After working inside your computer. Power-adapter port Removing the power-adapter port Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover. 3 Remove the battery. About this task The following image indicates the location of the power-adapter port and provides a visual representation of the removal procedure.
About this task The following image indicates the location of the power-adapter port and provides a visual representation of the installation procedure. Steps 1 Place the power-adapter port into its slot on the palm-rest and keyboard assembly. 2 Align the screw hole on the power-adapter port with the screw hole on the palm-rest and keyboard assembly. 3 Replace the screw (M2x3) that secures the power-adapter port to the palm-rest and keyboard assembly.
Removing and installing components
Steps 1 Remove the screw (M2x3) that secures the display-cable bracket to the system board. 2 Lift the display-cable bracket off the system board. 3 Peel off the tape that secures the display cable to the system board. 4 Open the latch and disconnect the display cable. 5 Peel off the black adhesive that secures the sensor-board cable to the left hinge. 6 Open the latch and disconnect the sensor-board cable from the I/O board.
Removing and installing components
Steps 1 Place the palm-rest and keyboard assembly on a clean and flat surface. 2 Align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly. 3 Replace the four screws (M2x3) that secure the display assembly to the palm-rest and keyboard assembly. 4 Turn the computer over and close the display. 5 Slide the display cable into its slot on the system board and press down the latch to secure the cable. 6 Adhere the tape on the display cable.
Steps 1 Remove the screw (M2x3) that secures the display-cable bracket to the system board. 2 Using the pull tab, disconnect the display cable from the system board. 3 Disconnect the coin-cell battery cable from the system board. 4 Disconnect the speaker cable from the system board. 5 Disconnect the power-adapter port cable from the system board. 6 Open the latch and disconnect the keyboard cable from the system board. 7 Open the latch and disconnect the touchpad cable from the system board.
9 Gently release the ports on the system board from the slots on the palm-rest and keyboard assembly and lift the system board off the palm-rest and keyboard assembly. Installing the system board Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicates the location of the system board and provides a visual representation of the installation procedure.
Steps 1 Slide the system board into the slots on the palm-rest and keyboard assembly, and align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 2 Replace the screw (M2x2) to secure the system board to the palm-rest and keyboard assembly. 3 Connect the coin-cell battery cable to the system board. 4 Connect the speaker cable to the system board. 5 Connect the power-adapter port cable to the system board.
9 Slide the display-cable bracket into its slot on the system board and replace the screw (M2x3) to secure the display-cable bracket to the system board. Next step 1 Install the WLAN card. 2 Install the I/O-board cable. 3 Install the heat sink. 4 Install the battery. 5 Install the base cover. 6 Follow the procedure in After working inside your computer. Touchpad Removing the touchpad Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover.
Installing the touchpad Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the touchpad and provides a visual representation of the installation procedure. Steps 1 Align and place the touchpad into the slot on the palm-rest and keyboard assembly. 2 Align the screw holes on the touchpad bracket with the screw holes on the palm-rest and keyboard assembly.
2 Remove the battery. 3 Remove the coin-cell battery. 4 Remove the WLAN card. 5 Remove the I/O board. 6 Remove the power-adapter port. 7 Remove the speaker. 8 Remove the display assembly. 9 Remove the touchpad. 10 Remove the system board. NOTE: When removing and replacing the palm-rest and keyboard assembly, do not remove the heat sink from the system board. About this task The following image indicates the palm-rest and keyboard assembly.
Step Place the palm-rest and keyboard assembly on a flat surface. NOTE: Antenna cables are a part of the display back-cover for computers shipping with WLAN configuration. Next step 1 Install the system board. 2 Install the touchpad. 3 Install the display assembly. 4 Install the speaker. 5 Install the power-adapter port. 6 Install the I/O board. 7 Install the WLAN card. 8 Install the coin-cell battery. 9 Install the battery. 10 Install the base cover.
Steps 1 Release the display cable from the routing guide in the left hinge. 2 Release the sensor-board cable from the routing guide in the right hinge. 3 Using a plastic scribe, pry the display panel off the display-back cover. Installing the display panel Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1 Align the display panel on the display-back cover and snap the display panel into place. 2 Route the display cable through the routing guide in the left hinge. 3 Route the sensor-board cable through the routing guide in the right hinge. Next step 1 Install the display assembly. 2 Install the WLAN card. 3 Install the battery. 4 Install the base cover. 5 Follow the procedure in After working inside your computer.
5 Remove the display assembly. 6 Remove the display panel. About this task The following image indicates the location of the camera and provides a visual representation of the removal procedure. Steps 1 Peel off the tape that secures the camera to the display back-cover. 2 Peel off the tape that secures the camera cable to the display back-cover. 3 Using a plastic scribe, pry the camera from the alignment post on the display back-cover.
Steps 1 Connect the camera cable to the camera and turn it over. 2 Slot the camera into the alignment post on the display back-cover. 3 Adhere the tape that secures the camera to the display back-cover. 4 Adhere the tape that secures the camera cable to the display back-cover. Next step 1 Install the display panel. 2 Install the display assembly. 3 Install the WLAN card. 4 Install the battery. 5 Install the base cover. 6 Follow the procedure in After working inside your computer.
About this task The following images indicate the location of the display cable and provide a visual representation of the removal procedure. Steps 1 Peel off the thick black tape holding down the clear tape. 2 Peel the clear tape off the display-cable connector and the display cable. 3 Open the latch and disconnect the display cable from the display-cable connector. 4 Peel the display cable off the display back-cover.
Installing the display cable Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the display cable and provides a visual representation of the installation procedure.
Steps 1 Adhere the tape that secures the display cable to the display back-cover. 2 Slide the display cable into the connector on the display panel and close the latch to secure the cable. 3 Adhere the thick clear tape across both the the display cable and the display-cable connector. 4 Adhere the thick black tape over the top of the clear tape to secure it. Next steps 1 Install the camera. 2 Install the display panel. 3 Install the display assembly. 4 Install the battery.
Steps 1 Open the latch to disconnect the sensor-board cable from the sensor board. 2 Peel the sensor-board cable off the display assembly. 3 Using a plastic scribe, pry the sensor board off the display assembly. Installing the sensor board Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure.
Removing the display hinges Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover. 3 Remove the battery. 4 Remove the WLAN card. 5 Remove the display assembly. 6 Remove the display panel. About this task The following image indicates the location of display hinges and provides a visual representation of the removal procedure. Steps 1 Remove the two (M2x2) screws and the four (M2.5x2.
Installing the display hinges Prerequisite If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of display hinges and provides a visual representation of the installation procedure. Steps 1 Align the screw holes on the display hinges with the screw holes on the display back-cover. 2 Replace the two (M2x2) screws and the four (M2.5x2.
4 Install the battery. 5 Install the base cover. 6 Follow the procedure in After working inside your computer. Display back-cover Removing the display back-cover Prerequisites 1 Follow the procedure in Before working inside your computer. 2 Remove the base cover. 3 Remove the battery. 4 Remove the WLAN card. 5 Remove the display assembly. 6 Remove the display hinges. 7 Remove the display panel. 8 Remove the display cable. 9 Remove the camera.
About this task The following image indicates the display back-cover and provides a visual representation of the installation procedure. Step Place the display back-cover on a flat surface. NOTE: Antenna cables are a part of the palm-rest and keyboard assembly for computers shipping with WLAN configurations. Next step 1 Install the camera. 2 Install the display cable. 3 Install the display panel. 4 Install the display hinges. 5 Install the display assembly. 6 Install the WLAN card.
3 Device drivers Downloading the audio driver 1 Turn on your computer. 2 Go to www.dell.com/support. 3 Enter the Service Tag of your computer, and then click Submit. 4 Click Drivers & downloads. 5 Click the Detect Drivers button. 6 Review and agree to the Terms and Conditions to use SupportAssist, then click Continue. 7 If necessary, your computer starts to download and install SupportAssist. 8 Click View Drivers for My System.
12 The application installs all drivers and updates identified. NOTE: Not all files can be installed automatically. Review the installation summary to identify if manual installation is necessary. 13 For manual download and installation, click Category. 14 Click Video in the drop-down list. 15 Click Download to download the graphics driver for your computer. 16 After the download is complete, navigate to the folder where you saved the graphics driver file.
11 If prompted, approve requests from User Account Control to make changes on the system. 12 The application installs all drivers and updates identified. NOTE: Not all files can be installed automatically. Review the installation summary to identify if manual installation is necessary. 13 For manual download and installation, click Category. 14 Click Network in the drop-down list. 15 Click Download to download the WiFi driver for your computer.
10 Select a location to save the files. 11 If prompted, approve requests from User Account Control to make changes on the system. 12 The application installs all drivers and updates identified. NOTE: Not all files can be installed automatically. Review the installation summary to identify if manual installation is necessary. 13 For manual download and installation, click Category. 14 Click Chipset in the drop-down list. 15 Click Download to download the chipset driver for your computer.
4 System setup NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. System setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.
• STXXXX Drive (if available) NOTE: XXX denotes the SATA drive number. • Optical Drive (if available) • SATA Hard Drive (if available) • Diagnostics NOTE: Choosing Diagnostics, will display the ePSA diagnostics screen. The boot sequence screen also displays the option to access the System Setup screen. System setup options NOTE: Depending on this computer and its installed devices, the items listed in this section may or may not appear. Table 3.
Advanced This feature defines how the BIOS, in the absence of a USBaware operating system, handles USB devices. USB emulation is always enabled during POST. NOTE: You cannot boot any type of USB device (floppy, hard drive, or memory key) when this option is off. Default: Enabled USB Wake Support Allows you to enable USB devices to wake the computer from standby or to disable the USB wake support feature.
Security Default: Not Set Service Tag Displays the Service Tag of your system. Asset Tag Displays the Asset Tag of your system. Admin Password Allows you to set the administrator password. The administrator password controls access to the system setup utility. System Password Allows you to set the system password. The system password controls access to the computer at boot. Password Change Allows you to permit or deny system password changes.
Exit Load Optimal Defaults Allows you to restore default values for all system setup options. Discard Changes Allows you to load previous values for all system setup options. Clearing CMOS settings About this task CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer. Steps 1 Remove the base cover. 2 Disconnect the battery cable from the system board. 3 Remove the coin-cell battery. 4 Wait for one minute. 5 Replace the coin-cell battery.
5 Troubleshooting Flashing the BIOS About this task You may need to flash (update) the BIOS when an update is available or when you replace the system board. Follow these steps to flash the BIOS: Steps 1 Turn on your computer. 2 Go to www.dell.com/support. 3 Click Product support, enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model. 4 Click Drivers & downloads > Find it myself.
NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed. For more information, see Dell EPSA Diagnostic 3.0. Running the ePSA diagnostics 1 Turn on your computer. 2 As the computer boots, press the F12 key as the Dell logo appears. 3 On the boot menu screen, select the Diagnostics option. 4 Click the arrow at the bottom left corner. Diagnostics front page is displayed.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows 10 operating system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.
6 Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 9. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com Tips Dell Help & Support app NOTE: Availability varies by country. My Dell app NOTE: Availability varies by country. Accessing help In Windows search, type Help & Support, and press Enter. NOTE: Availability varies by country.
Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell. NOTE: Availability varies by country and product, and some services may not be available in your country. NOTE: If you do not have an active internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.
