Dell Inspiron 7706 Service Manual
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Dell Inspiron 7706 Service Manual

2-in-1
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Inspiron 7706 2-in-1
Service Manual
Regulatory Model: P98F
Regulatory Type: P98F001
September 2020
Rev. A00

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Summary of Contents for Dell Inspiron 7706

  • Page 1 Inspiron 7706 2-in-1 Service Manual Regulatory Model: P98F Regulatory Type: P98F001 September 2020 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 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.

  • Page 3: Table Of Contents

    Transporting sensitive components..........................7 After working inside your computer..........................7 Chapter 2: Removing and installing components................8 Recommended tools................................8 Screw list....................................8 Major components of Inspiron 7706 2-in-1........................9 Base cover.................................... 11 Removing the base cover............................11 Installing the base cover.............................14 Battery....................................15 Lithium-ion battery precautions..........................
  • Page 4 Clearing CMOS settings..............................67 Clearing BIOS (System Setup) and System passwords...................67 Chapter 5: Troubleshooting......................68 SupportAssist diagnostics............................... 68 Locate the Service Tag or Express Service Code of your Dell computer ..........68 System diagnostic lights..............................68 Built-in self-test (BIST)..............................69 Recovering the operating system..........................70 Flashing the BIOS................................

  • Page 5: Chapter 1: Working Inside Your Computer

    You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.

  • Page 6: Electrostatic Discharge-Esd Protection

    ESD protection is an increasing concern. 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.

  • Page 7: Transporting Sensitive Components

    It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

  • Page 8: Chapter 2: Removing And Installing Components

    Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Phillips screwdriver #1 ●...

  • Page 9: Major Components Of Inspiron 7706 2-In-1

    Palm-rest and keyboard M2x3.5 assembly System board Palm-rest and keyboard M2x2 assembly System board Palm-rest and keyboard M2x3.5 assembly Major components of Inspiron 7706 2-in-1 The following image shows the major components of Inspiron 7706 2-in-1. Removing and installing components...
  • Page 10 1. Base cover 2. Solid-state drive thermal bracket 3. Solid-state drive 4. Memory modules Removing and installing components...

  • Page 11: Base Cover

    24. Power-button bracket NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.
  • Page 12 Removing and installing components...
  • Page 13 1. Remove the eight screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the three captive screws (M2x8) that secure the base cover to the palm-rest and keyboard assembly. CAUTION: Do not pull on or pry the base cover at the side where the hinges are located; doing so may damage the base cover.

  • Page 14: Installing The Base Cover

    Installing the base cover If you are replacing a component, remove the existing component before performing the installation procedure. The following images indicate the location of the base cover and provide a visual representation of the installation procedure. Removing and installing components...

  • Page 15: Battery

    1. Connect the battery cable to the system board. 2. Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly, and then snap the base cover into place. 3. Replace the eight screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 16: Removing The Battery

    ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.

  • Page 17: Coin-Cell Battery

    1. Insert the tabs of the battery into the notches on the palm-rest and keyboard assembly. 2. Slide the battery on the palm-rest and keyboard assembly. 3. Replace the two screws (M2x3.5) that secure the battery to the palm-rest and keyboard assembly. 4.

  • Page 18: Installing The Coin-Cell Battery

    1. Disconnect the coin-cell battery cable from the I/O board. 2. Lift the speaker cable, and release the coin-cell battery cable. 3. Peel the coin-cell battery off the slot on the palm-rest and keyboard assembly. Installing the coin-cell battery If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure.

  • Page 19: Memory Module

    2. Lift the speaker cable and route the coin-cell battery cable under the speaker cable. 3. Connect the coin-cell battery cable to the I/O board. 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Memory module Removing the memory module 1.

  • Page 20: Installing The Memory Module

    NOTE: Repeat the steps to remove any other memory modules installed in your computer. Installing the memory module If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of the memory modules and provides a visual representation of the installation procedure.

  • Page 21: Wireless Card

    Wireless card Removing the wireless card 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. The following image indicates the location of the wireless card and provides a visual representation of the removal procedure. 1.
  • Page 22 1. Connect the antenna cables to the wireless card. The following table provides the antenna-cable color scheme for the wireless card that is supported by your computer. Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black...

  • Page 23: Speakers

    Speakers Removing the speakers 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. The following image indicates the location of the speakers and provides a visual representation of the removal procedure. 1. Disconnect the speaker cable from the system board. 2.

  • Page 24: Heat Sink

    1. Using the alignment posts and rubber grommets, place the speakers on the slots of the palm-rest and keyboard assembly. 2. Route the speaker cable through the routing guides on the palm-rest and keyboard assembly. 3. Connect the speaker cable to the system board. 1.

  • Page 25: Installing The Heat Sink

    1. In reverse sequential order (as indicated on the heat sink), loosen the four screws (M2x5.35) that secure the heat sink to the system board. 2. Lift the heat sink off the system board. Installing the heat sink If you are replacing a component, remove the existing component before performing the installation procedure. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.

  • Page 26: Fan

    1. 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 screws (M2x5.35) that secure the heat sink to the system board. 1.

  • Page 27: Installing The Fan

    1. Disconnect the fan cable from the system board. 2. Release the fan cable by lifting the I/O-board cable. 3. Remove the two screws (M2x3.5) that secure the fan to the palm-rest and keyboard assembly. 4. Lift the fan off the palm-rest and keyboard assembly. Installing the fan If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 28: Solid-State Drive

    2. Replace the two screws (M2x3.5) that secure the system fan to the palm-rest and keyboard assembly. 3. Route the fan cable under the I/O-board cable. 4. Connect the fan cable to the system board. 1. Install the base cover. 2.

  • Page 29: Installing The M.2 2230 Solid-State Drive

    Installing the M.2 2230 solid-state drive If you are replacing a component, remove the existing component before performing the installation procedure. ● If you are replacing a M.2 2280 solid-state drive with a M.2 2330 solid-state drive, ensure the M.2 2280 solid-state drive is removed first.

  • Page 30: Removing The M.2 2280 Solid-State Drive

    NOTE: Perform step 1 to step 4 if you are replacing the M.2 2230 solid-state drive with an M.2 2280 solid-state drive. 1. Remove the screw (M1.6x2.5) that secures the solid-state drive bracket to the palm-rest and keyboard assembly. 2. Turn the solid-state drive bracket at an angle of 180 degrees. 3.

  • Page 31: Installing The M.2 2280 Solid-State Drive

    1. Remove the screw (M2x3.5) that secures the solid-state drive thermal bracket to the palm-rest and keyboard assembly. 2. Lift the solid-state drive thermal bracket off the palm-rest and keyboard assembly. 3. Remove the screw (M2x3.5) that secures the solid-state drive to the solid-state drive bracket. 4.
  • Page 32 This computer supports two solid-state drive form factors. ● M.2 2230 ● M.2 2280 The following image indicates the location of the M.2 2280 solid-state drive and provides a visual representation of the installation procedure. Removing and installing components...
  • Page 33 NOTE: Perform step 1 to step 4 if you are replacing the M.2 2230 solid-state drive with an M.2 2280 solid-state drive. 1. Remove the screw (M1.6x2.5) that secures the solid-state drive bracket to the palm-rest and keyboard assembly. 2. Turn the solid-state drive bracket at an angle of 180 degrees. 3.

  • Page 34: I/O Board

    I/O board Removing the I/O board 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. The following image indicates the location of the I/O-board and provides a visual representation of the removal procedure. 1. Remove the three screws (M2.5x4.5) that secure the left display hinge to the I/O board and palm-rest and keyboard assembly.

  • Page 35: Touchpad

    1. Slide the I/O board into the slots on the palm-rest and keyboard assembly. 2. Align the screw hole on the I/O board with the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3.5) that secures the I/O board to the palm-rest and keyboard assembly. 4.

  • Page 36: Installing The Touchpad

    1. Remove the three screws (M2x3.5) that secure the touchpad bracket to the palm-rest and keyboard assembly. 2. Lift the touchpad bracket off the palm-rest and keyboard assembly. 3. Open the latch, and disconnect the touchpad cable from the system board. 4.

  • Page 37: Display Assembly

    1. Slide the touchpad into the slot on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly. 3. Adhere the tape that secures the touchpad to the palm-rest and keyboard assembly. 4.
  • Page 38 Removing and installing components...

  • Page 39: Installing The Display Assembly

    1. Peel the tape that secures the display cable to the system board. 2. Open the latch, and disconnect the display cable from the system board. 3. Remove the three screws (M2.5x4.5) that secure the left-display hinge to the palm-rest and keyboard assembly. 4.
  • Page 40 The following image indicates the location of the display assembly and provides a visual representation of the installation procedure. Removing and installing components...

  • Page 41: Power-Adapter Port

    1. Place the display assembly on a dry, flat, and clean surface. 2. Slide the palm-rest and keyboard assembly at an angle, and place the palm-rest and keyboard assembly on the display assembly. 3. Replace the three screws (M2.5x4.5) that secure the left-display hinge to the palm-rest and keyboard assembly. 4.

  • Page 42: Installing The Power-Adapter Port

    1. Remove the three screws (M2.5x4.5) that secure the right display-hinge to the palm-rest and keyboard assembly. 2. Open the right display-hinge at an angle of 90 degrees. 3. Remove the screw (M2x3.5) that secures the power-adapter port to the palm-rest and keyboard assembly. 4.

  • Page 43: Power-Button Board

    1. Place the power-adapter port into the slot on the palm-rest and keyboard assembly. 2. Replace the screw (M2x3.5) that secures the power-adapter port to the palm-rest and keyboard assembly. 3. Connect the power-adapter port cable to the system board. 4.

  • Page 44: Installing The Power-Button Board

    1. Remove the two screws (M2x3.5) that secure the power-button bracket to the palm-rest and keyboard assembly. 2. Lift the power-button bracket off the palm-rest and keyboard assembly. 3. Peel the power-button board cable from the palm-rest and keyboard assembly. 4.

  • Page 45: System Board

    1. Align and place the power button, along with its cable, on the slot of the palm-rest and keyboard assembly. 2. Adhere the power-button board cable to the palm-rest and keyboard assembly. 3. Align and place the power-button board on the slot of the palm-rest and keyboard assembly. 4.
  • Page 46 Figure 1. System-board connectors 1. Power-adapter port cable 2. Display cable 3. Fan cable 4. I/O-board cable 5. Speaker cable 6. Touchpad cable 7. Keyboard cable 8. USB Type-C port bracket The following image indicates the location of the system board and provides a visual representation of the removal procedure. Removing and installing components...
  • Page 47 1. Remove the three screws (M2.5x4.5) that secure the right-display hinge to the palm-rest and keyboard assembly. Removing and installing components...

  • Page 48: Installing The System Board

    2. Open the hinge at an angle of 90 degrees. 3. Remove the two screws (M2.5x3.5) that secure the USB Type-C port bracket to the system board. 4. Disconnect the fan cable from the system board. 5. Peel the tape that secures the I/O-board cable to the system board. 6.
  • Page 49 1. Align and place the system board on the palm-rest and keyboard assembly. Removing and installing components...

  • Page 50: Keyboard

    2. Replace the screws (M2x3.5) that secures the system board to the palm-rest and keyboard assembly. 3. Replace the screws (M2x2) that secures the system board to the palm-rest and keyboard assembly. 4. Connect the display cable to the connector on the system board and close the latch to secure the cable. 5.
  • Page 51 1. Release the coin-cell battery cable from the speaker cable. 2. Take note of the cable routing and peel off the tapes that secure the cables to the palm-rest and keyboard assembly. 3. Peel off the tapes to access the screws. 4.

  • Page 52: Installing The Keyboard

    6. Lift the keyboard from the palmrest. Installing the keyboard If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of the palm-rest and keyboard assembly and provides a visual representation of the installation procedure of the keyboard.

  • Page 53: Palmrest

    1. Align the screw holes on the keyboard with the screw holes on the palmrest. 2. Align the screw holes on the keyboard bracket with the screw holes on the keyboard. 3. Replace the 42 screws (M1.2x1.5) that secure the keyboard and the keyboard bracket to the palm-rest and keyboard assembly.

  • Page 54: Installing The Palmrest

    16. Remove the system board. NOTE: The system board can be removed or installed together with the heat sink attached. This simplifies the procedure and avoids breaking the thermal bond between the system board and the heat sink. 17. Remove the keyboard. The following image shows the palmrest.
  • Page 55 1. Install the keyboard. 2. Install the system board. NOTE: The system board can be installed together with the heat sink attached. This simplifies the procedure and avoids breaking the thermal bond between the system board and the heat sink. 3.

  • Page 56: Chapter 3: Drivers And Downloads

    Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ SLN128938. Drivers and downloads...

  • Page 57: Chapter 4: System Setup

    Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can: ● Access System Setup by pressing F2 key ●...

  • Page 58: One Time Boot Menu

    ● Optical Drive (if available) ● SATA Hard Drive (if available) ● Diagnostics The boot sequence screen also displays the option to access the System Setup screen. One time boot menu To enter one time boot menu, turn on your computer, and then press F2 immediately. NOTE: It is recommended to shutdown the computer if it is on.
  • Page 59 Table 3. System setup options—System information menu (continued) Overview Minimum Clock Speed Displays the minimum processor clock speed. Current Clock Speed Displays the current processor clock speed. Core Count Displays the number of cores on the processor. Processor ID Displays the processor identification code. Processor L2 Cache Displays the processor L2 Cache size.
  • Page 60 Table 4. System setup options—Boot Configuration menu (continued) Boot Configuration By default, Deployed Mode is selected. Expert Key Management Enable Custom Mode Allows the PK, KEK, db, and dbx security key databases to be modified. Default: OFF NOTE: If Custom Mode is not enabled, any changes made with respect to the keys will not be saved.
  • Page 61 Table 5. System setup options—Integrated Devices menu (continued) Integrated Devices EnableThunderbolt (and PCIe behind Enables or disables to allow or disallow PCIe devices to be connected through TBT) pre-boot modules a Thunderbolt adapter during pre-boot. Default: OFF Table 6. System setup options—Storage menu Storage SATA/NVMe Operation SATA/NVMe Operation...
  • Page 62 This setting is a balance of performance, noise, and temperature. USB Wake Support Wake on Dell USB-C Dock Enables connecting a Dell USB-C Dock to wake the computer from Standby. Default: ON Block Sleep Blocks the computer from entering Sleep (S3) mode in the operating system.
  • Page 63 Table 10. System setup options—Security menu (continued) Security PPI Bypass for Clear Commands Enables or disables the Trusted Platform Model (TPM) Physical Presence Interface (PPI). When enabled, the OS will skip BIOS Physical Presence Interface (PPI) user prompts when issuing the Clear command. Default: OFF Clear Enables or disables the computer to clear the PTT owner information, and...
  • Page 64 Enables or disables cloud Service OS recovery if the main OS fails to boot within the number of failures equal or greater than the value specified by Dell Auto OS Recovery Threshold, and local Service does not boot, or is not installed.
  • Page 65 Table 13. System setup options—System Management menu System Management Service Tag Displays the Service Tag of the computer. Asset Tag Creates a system Asset Tag that can be used by an IT administrator to uniquely identify a particular system. Once set in BIOS, the Asset Tag cannot be changed.
  • Page 66 Table 15. System setup options—Pre-boot Behavior menu (continued) Pre-boot Behavior Enable Dock Warning Messages Enable or disable dock warning messages. Default: ON Fastboot Configures the speed of the UEFI boot process. Default: Thorough. Performs complete hardware and configuration initialization during boot. Extend BIOS POST Time Configures the BIOS POST (Power-On Self-Test) load time.

  • Page 67: Clearing Cmos Settings

    5. Turn on your computer. Clearing BIOS (System Setup) and System passwords To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.

  • Page 68: Chapter 5: Troubleshooting

    Locate the Service Tag or Express Service Code of your Dell computer Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your Dell computer, we recommend entering the Service Tag or Express Service Code at www.dell.com/support.

  • Page 69: Built-In Self-Test (Bist)

    Table 19. LED codes (continued) Diagnostic light codes Problem description System board: BIOS or ROM (Read-Only Memory) failure No memory or RAM (Random-Access Memory) detected Memory or RAM (Random-Access Memory) failure Invalid memory installed System-board or chipset error Display failure Coin-cell battery failure PCI, video card/chip failure Recovery image not found...

  • Page 70: Recovering 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. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures.

  • Page 71: Wifi Power Cycle

    WiFi power cycle If your computer is unable to access the Internet due to WiFi connectivity issues, a WiFi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a WiFi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.

  • Page 72: Chapter 6: Getting Help And Contacting Dell

    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 21. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app...

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