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Inspiron 3656
Service Manual
Regulatory Model: D19M
Regulatory Type: D19M001

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Summary of Contents for Dell Inspirion 3656

  • Page 1 Inspiron 3656 Service Manual Regulatory Model: D19M Regulatory Type: D19M001...
  • Page 2 © 2016 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
  • Page 3: Table Of Contents

    Contents 1 Before working inside your computer..................... 7 Before you begin ...................................7 Safety instructions.................................7 Recommended tools................................8 2 After working inside your computer....................9 3 Technical overview........................10 System board components..............................10 4 Removing the computer cover ..................... 11 Procedure....................................11 5 Replacing the computer cover .....................12 Procedure....................................12 6 Removing the front bezel ......................13 Prerequisites..................................
  • Page 4 13 Replacing the 3.5-inch hard drive....................26 Procedure..................................... 26 Post-requisites..................................26 14 Removing the 2.5-inch hard drives....................27 Prerequisites..................................27 Procedure..................................... 27 15 Replacing the 2.5-inch hard drives..................... 29 Procedure..................................... 29 Post-requisites..................................29 16 Replacing the optical drive......................30 Prerequisites..................................30 Procedure..................................... 30 17 Removing the optical drive......................33 Procedure.....................................
  • Page 5 25 Replacing the power-button module..................45 Procedure..................................... 45 Post-requisites..................................45 26 Removing the chassis fan......................46 Prerequisites..................................46 Procedure..................................... 46 27 Replacing the chassis fan......................48 Procedure..................................... 48 Post-requisites..................................48 28 Removing the front-panel light board..................49 Prerequisites..................................49 Procedure..................................... 49 29 Replacing the front-panel light board..................51 Procedure....................................51 Post-requisites..................................51 30 Removing the power-supply unit....................52...
  • Page 6 38 BIOS setup program......................... 64 Overview....................................64 Entering BIOS setup program............................64 Clearing Forgotten Passwords............................64 Prerequisites...................................64 Procedure..................................64 Post-requisites................................65 Clearing CMOS Settings..............................65 Prerequisites...................................65 Procedure..................................65 Post-requisites................................66 39 Flashing the BIOS........................67 40 Getting help and contacting Dell....................68 Contents...
  • Page 7: Before 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 shipped with the product or at www.dell.com/regulatory_compliance.
  • Page 8: Recommended Tools

    disconnecting cables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure that the ports and connectors are correctly oriented and aligned. CAUTION: Press and eject any installed card from the media-card reader. Recommended tools The procedures in this document may require the following tools: •...
  • Page 9: After Working Inside Your Computer

    After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. 1. Replace all screws and ensure that no stray screws remain inside your computer. 2. Connect any external devices, peripherals, or cables you removed before working on your computer. 3.
  • Page 10: Technical Overview

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • System board components System board components 1.
  • Page 11: Removing The Computer Cover

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure Procedure 1. Lay the computer on its side with the vents facing up.
  • Page 12: Replacing The Computer Cover

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure Procedure 1. Align the cover over the chassis and slide it toward the front of the computer.
  • Page 13: Removing The Front Bezel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure...
  • Page 14 a. chassis b. front-bezel tabs (3) c. front bezel Removing the front bezel...
  • Page 15: Replacing The Front Bezel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 16: Removing The Memory Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 17 a. securing clips (2) b. memory-module slot c. memory module Removing the memory modules...
  • Page 18: Replacing The Memory Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 19: Post-Requisites

    Post-requisites 1. Replace the front bezel. 2. Replace the computer cover. Replacing the memory modules...
  • Page 20: Removing The Graphics Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 21 a. tab b. card-retention bracket c. graphics card Removing the graphics card...
  • Page 22: Replacing The Graphics Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Postrequisites Procedure 1.
  • Page 23: Removing The 3.5-Inch Hard Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 24 a. hard drive b. data cable c. power cable 4. Slide the hard-drive assembly out of the side-chassis. a. hard-drive assembly b. side-chassis Removing the 3.5-inch hard drive...
  • Page 25 5. Remove the screws that secure the hard-drive bracket to the hard drive. 6. Lift the hard drive off the hard-drive bracket. a. screws (4) b. hard-drive bracket c. hard drive Removing the 3.5-inch hard drive...
  • Page 26: Replacing The 3.5-Inch Hard Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 27: Removing The 2.5-Inch Hard Drives

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 28 a. data cable b. power cable c. hard drive 4. Spread apart the hard-drive bracket from one edge and lift the hard drive up. 5. Slide and remove the hard drive from the hard-drive bracket. NOTE: Note the orientation of the hard drive so that you can replace it correctly. a.
  • Page 29: Replacing The 2.5-Inch Hard Drives

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 30: Replacing The Optical Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 31 1. hard-drive cable 2. hard drive 3. hard-drive power cable 4. optical-drive power cable 5. optical-drive cable 6. optical drive 4. Close the side-chassis. 5. Remove the screw that secures the optical-drive assembly to the side-chassis. 6. Gently slide the optical-drive assembly out of the optical-drive bay on the front of the chassis. a.
  • Page 32 7. Remove the screws that secure the optical-drive bracket to the optical drive. a. screws (2) b. optical-drive bracket c. optical drive 8. Gently pull and disconnect the optical-drive bezel from the optical drive. a. optical drive b. optical-drive bezel Replacing the optical drive...
  • Page 33: Removing The Optical Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 34: Removing The Coin-Cell Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. 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.
  • Page 35 a. plastic scribe b. coin-cell battery c. coin-cell battery socket Removing the coin-cell battery...
  • Page 36: Replacing The Coin-Cell Battery

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 37: Removing The Wireless Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 38 1. wireless-card slot 2. wireless card 3. screw 4. wireless-card bracket 5. antenna cables Removing the wireless card...
  • Page 39: Replacing The Wireless Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 40: Removing The Antenna Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 41 a. antenna modules (2) b. plastic scribe c. antenna cables (2) Removing the antenna modules...
  • Page 42: Replacing The Antenna Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 43: Removing The Power-Button Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 44 a. power-button cable b. tab c. power-button module Removing the power-button module...
  • Page 45: Replacing The Power-Button Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 46: Removing The Chassis Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 47 a. side-chassis 3. Disconnect the chassis-fan cable from the system board. 4. Remove the chassis fan from the chassis. a. chassis fan b. chassis-fan cable Removing the chassis fan...
  • Page 48: Replacing The Chassis Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 49: Removing The Front-Panel Light Board

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 50 a. lighting cable b. routing guides 5. Remove the screws that secure the lighting module to the chassis. 6. Lift the lighting module, along with its cable, off the chassis. a. lighting module b. screws (2) c. lighting cable Removing the front-panel light board...
  • Page 51: Replacing The Front-Panel Light Board

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 52: Removing The Power-Supply Unit

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 53 a. securing clips (2) b. routing guides c. power cable 4. Remove the screws that secure the power-supply unit to the chassis. 5. Press the clamp and release the power-supply unit from the chassis. 6. Slide and lift the power-supply unit off the chassis. 1.
  • Page 54: Replacing The Power-Supply Unit

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Postrequisites Procedure 1.
  • Page 55: Removing The Processor Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 56 a. processor fan b. screws (4) c. processor-fan cable Removing the processor fan...
  • Page 57: Replacing The Processor Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Topics: • Procedure • Post-requisites Procedure 1.
  • Page 58: Removing The Heat Sink

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.
  • Page 59: Replacing The Heat Sink

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor. NOTE: The original thermal grease can be reused if the original system board and heat sink are reinstalled together.
  • Page 60: Removing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 61 1. chassis-fan cable 2. power cable 3. routing guide 4. lighting cable 5. drive-power cable 6. optical-drive cable 7. hard-drive cable 8. power cable 3. Remove the screw that secures the I/O cover to the chassis and lift the cover off the system board. 4.
  • Page 62 a. system board b. screws (7) c. I/O cover Removing the system board...
  • Page 63: Replacing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 64: Bios Setup Program

    Entering BIOS setup program 1. Turn on (or restart) your computer. 2. During POST, when the DELL logo is displayed, watch for the F2 prompt to appear, and then press F2 immediately. NOTE: The F2 prompt indicates that the keyboard is initialized. This prompt can appear very quickly, so you must watch for it, and then press F2.
  • Page 65: Post-Requisites

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites 1. Remove the computer cover. 2. Remove the front bezel.
  • Page 66: Post-Requisites

    1. jumper plug 2. pin 1 3. pin 2 4. pin 3 5. Close the side-chassis. Post-requisites 1. Replace the front bezel. 2. Replace the computer cover. BIOS setup program...
  • Page 67: Flashing The Bios

    You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS: 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.
  • Page 68: 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: Information about Dell products and services www.dell.com Windows 8.1 and Windows 10 Dell Help & Support app Windows 10 Get started app Windows 8.1...

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