Dell Inspiron 3656 Service Manual
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Dell Inspiron 3656 Service Manual

Dell Inspiron 3656 Service Manual

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

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Summary of Contents for Dell Inspiron 3656

  • Page 1 Inspiron 3656 Service Manual Computer Model: Inspiron 3656 Regulatory Model: D19M Regulatory Type: D19M001...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2015 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 ™...

  • Page 3: Table Of Contents

    Contents Before working inside your computer........8 ....................8 Before you begin ....................8 Safety instructions ..................9 Recommended tools After working inside your computer........11 Technical overview..............12 ................12 System board components Removing the computer cover ..........14 ......................14 Procedure Replacing the computer cover ..........15 ......................
  • Page 4 Removing the graphics card........... 25 .....................25 Prerequisites ......................25 Procedure Replacing the graphics card............ 27 ......................27 Procedure ....................27 Postrequisites Removing the 3.5-inch hard drive......... 28 ....................28 Prerequisites ......................28 Procedure Replacing the 3.5-inch hard drive.......... 33 ......................33 Procedure ....................33 Post-requisites Removing the 2.5-inch hard drives........34 .....................34...
  • Page 5 Removing the coin-cell battery..........45 .....................45 Prerequisites ......................46 Procedure Replacing the coin-cell battery..........48 ......................48 Procedure ....................48 Post-requisites Removing the wireless card............ 49 ....................49 Prerequisites ......................50 Procedure Replacing the wireless card.............52 ......................52 Procedure ....................53 Post-requisites Removing the antenna modules..........54 .....................54 Prerequisites ......................
  • Page 6 Removing the chassis fan............62 .....................62 Prerequisites ......................63 Procedure Replacing the chassis fan............66 ......................66 Procedure ....................66 Post-requisites Removing the front-panel light board........67 .....................67 Prerequisites ......................68 Procedure Replacing the front-panel light board........71 ......................71 Procedure ....................71 Post-requisites Removing the power-supply unit...........72 .....................72 Prerequisites...
  • Page 7 ................88 Clearing Forgotten Passwords ....................89 Prerequisites ....................89 Procedure ................... 89 Post-requisites ..................90 Clearing CMOS Settings ....................90 Prerequisites ....................90 Procedure ....................91 Post-requisites Flashing the BIOS..............92 Getting help and contacting Dell...........93 ..................93 Self-help resources ....................94 Contacting Dell...

  • Page 8: Before Working Inside Your Computer

    Before working inside your computer CAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contacts. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Before you begin Save and close all open files and exit all open applications.

  • Page 9: Recommended Tools

    CAUTION: 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 10 • Plastic scribe...

  • Page 11: After Working Inside Your Computer

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

  • Page 12: 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. System board components chassis-fan cable connector memory-module slots (2) coin-cell battery...
  • Page 13 wireless-card slot hard-drive data cable connector processor PCI-e x16 slot PCI-e x1 slot...

  • Page 14: Removing The Computer Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Lay the computer on its side with the vents facing up. Remove the screws that secure the cover to the chassis.

  • Page 15: Replacing The Computer Cover

    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. Procedure Align the cover over the chassis and slide it toward the front of the computer.

  • Page 16: 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. Prerequisites Remove the computer cover. Procedure Place the computer in an upright position.
  • Page 17 Gently rotate and pull the front bezel away from the chassis. chassis front-bezel tabs (3) front bezel...

  • Page 18: Replacing The Front Bezel

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align and insert the tabs on the front bezel into the slots on the front panel.

  • Page 19: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 20: Procedure

    Procedure Open the side-chassis. side-chassis Using the fingertips, spread apart the securing clip at each end of the memory-module slot until the memory module pops up.
  • Page 21 Lift the memory module out of the memory-module slot. NOTE: If the memory module is difficult to remove, gently ease the memory module back and forth to remove it from the slot. CAUTION: To prevent damage to the memory module, hold the memory module by the edges.

  • Page 22: Replacing The Memory Modules

    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. Procedure Ensure that the securing clips are extended away from the memory- module slot.

  • Page 23: Post-Requisites

    Insert the memory module into the memory-module slot and press the memory module down until it snaps into position and the securing clips lock in place. memory module memory-module slot notch securing clips (2) Close the side-chassis. Post-requisites Replace the front bezel.
  • Page 24 Replace the computer cover.

  • Page 25: 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. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 26 Open the card-retention bracket. Push the securing tab away from the graphics card, grasp the card by its top corner, and ease it out of the slot. card-retention bracket graphics card...

  • Page 27: Replacing The Graphics Card

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the graphics card with the slot on the system board. Place the card in the slot and press down firmly. Ensure that the card is firmly seated in the slot.

  • Page 28: 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. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 29 Open the side-chassis. hard-drive assembly side-chassis screw...
  • Page 30 Disconnect the data cable and the power cable from the hard drive. hard drive data cable power cable...
  • Page 31 Slide the hard-drive assembly out of the side-chassis. hard-drive assembly side-chassis Remove the screws that secure the hard-drive bracket to the hard drive.
  • Page 32 Lift the hard drive off the hard-drive bracket. screws (4) hard-drive bracket hard drive...

  • Page 33: Replacing The 3.5-Inch Hard Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Place the hard drive in the hard-drive bracket. Align the screw holes on the hard drive with the screw holes on the hard- drive bracket.

  • Page 34: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 35: Procedure

    Procedure Open the side-chassis. side-chassis Disconnect the data cable and the power cable from the hard drive.
  • Page 36 Press the tabs on the hard-drive assembly and slide the hard- drive assembly out of the side-chassis. data cable power cable hard drive Spread apart the hard-drive bracket from one edge and lift the hard drive...
  • Page 37 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. hard-drive bracket hard drive...

  • Page 38: Replacing The 2.5-Inch Hard Drives

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the holes on the hard drive to the tabs on the hard-drive bracket. Snap the hard drive into the hard-drive bracket.

  • Page 39: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 40: Procedure

    Procedure Open the side-chassis. side-chassis If a 3.5-inch hard drive is installed, disconnect the data and power cables from the drive.
  • Page 41 Disconnect the data cable and the power cable from the optical drive. hard-drive cable hard drive hard-drive power cable optical-drive power cable optical-drive cable optical drive Close the side-chassis. Remove the screw that secures the optical-drive assembly to the side- chassis.
  • Page 42 Gently slide the optical-drive assembly out of the optical-drive bay on the front of the chassis. side-chassis screw optical-drive assembly...
  • Page 43 Remove the screws that secure the optical-drive bracket to the optical drive. screws (2) optical-drive bracket optical drive Gently pull and disconnect the optical-drive bezel from the optical drive. optical drive optical-drive bezel...

  • Page 44: Replacing The Optical Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align and snap the optical-drive bezel to the optical drive. Align the screw holes on the optical-drive bracket with the screw holes on the optical drive.

  • Page 45: 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 46: Procedure

    Procedure Open the side-chassis. side-chassis...
  • Page 47 Using a plastic scribe, pry the coin-cell battery out of its socket. plastic scribe coin-cell battery coin-cell battery socket...

  • Page 48: Replacing 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. Procedure With the positive-side facing up, insert the coin-cell battery into the coin- cell battery socket and snap the battery into place.

  • Page 49: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 50: Procedure

    Procedure Open the side-chassis. side-chassis Remove the screw that secures the wireless card to the system board. Slide the wireless-card bracket off the wireless card. Disconnect the antenna cables from the wireless card.
  • Page 51 Slide and remove the wireless card from the wireless-card slot. wireless-card slot wireless card screw wireless-card bracket antenna cables...

  • Page 52: Replacing The Wireless Card

    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. Procedure Align the notch on the wireless card with the tab on the wireless-card slot.

  • Page 53: Post-Requisites

    Replace the screw that secures the wireless card to the system board. notch wireless card wireless-card slot antenna cables wireless-card bracket screw Close the side-chassis. Post-requisites Replace the front bezel. Replace the computer cover.

  • Page 54: 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. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 55 Gently slide the antenna cables through the routing holes on the side- chassis. antenna cables routing guides routing holes (2) Close the side-chassis.
  • Page 56 Using a plastic scribe, gently pry the antenna modules off the side- chassis. antenna modules (2) plastic scribe antenna cables (2)

  • Page 57: Replacing The Antenna Modules

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Adhere the antenna modules to the side-chassis. Open the side-chassis and route the antenna cables through the routing guides.

  • Page 58: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 59: Procedure

    Procedure Open the side-chassis. side-chassis Disconnect the power-button cable from the system board.
  • Page 60 Press down the tab on the power button and slide it out of the chassis. power-button cable power-button module...

  • Page 61: Replacing The Power-Button Module

    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. Procedure Slide the power button into its socket. Connect the power-button cable to the system board.

  • Page 62: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 63: Procedure

    Procedure Remove the screws that secure the chassis fan to the chassis. chassis screws (4)
  • Page 64 Open the side-chassis. side-chassis Disconnect the chassis-fan cable from the system board.
  • Page 65 Remove the chassis fan from the chassis. chassis fan chassis-fan cable...

  • Page 66: Replacing The Chassis Fan

    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. Procedure Align the screw holes on the chassis fan with the screw holes on the chassis.

  • Page 67: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 68: Procedure

    Procedure Open the side-chassis. side-chassis Disconnect the lighting cable from the system board. Remove the lighting cable from the routing guides on the chassis.
  • Page 69 Slide the cable out through the side-chassis and close the side-chassis. lighting cable routing guides Remove the screws that secure the lighting module to the chassis.
  • Page 70 Lift the lighting module, along with its cable, off the chassis. lighting module screws (2) lighting cable...

  • Page 71: Replacing The Front-Panel Light Board

    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. Procedure Align the screw holes on the lighting modules with the screw holes on the chassis.

  • Page 72: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 73: Procedure

    Procedure Open the side-chassis. side-chassis Press the securing clips and disconnect the power cables from the system board.
  • Page 74 Note the routing and remove the power cables from the routing guides. securing clips (2) routing guides power cable Remove the screws that secure the power-supply unit to the chassis. Press the clamp and release the power-supply unit from the chassis.
  • Page 75 Slide and lift the power-supply unit off the chassis. clamp power cables power-supply unit screws (3)

  • Page 76: Replacing The Power-Supply Unit

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the power supply towards the back of the chassis. Align the screw holes on the power-supply unit with the screw holes on the chassis.

  • Page 77: 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. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 78: Procedure

    Procedure Open the side-chassis. side-chassis Disconnect the processor-fan cable from the system board. Remove the screws that secure the processor fan to the heat sink.
  • Page 79 Lift the processor fan off the heat sink. processor fan screws (4) processor-fan cable...

  • Page 80: Replacing The Processor Fan

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw holes on the processor fan with the screw holes on the heat sink.

  • Page 81: 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. WARNING: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.
  • Page 82 Lift the heat sink off the system board. heat sink captive screws (4)

  • Page 83: Replacing 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. 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 84: 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 85 Note the routing and move the cables away from the system board. chassis-fan cable power cable routing guide lighting cable drive-power cable optical-drive cable hard-drive cable power cable Remove the screw that secures the I/O cover to the chassis and lift the cover off the system board.
  • Page 86 Starting from the edge near the memory-module slots, gently lift the system board off the chassis. system board screws (7) I/O cover...

  • Page 87: 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 88: Bios Setup Program

    Entering BIOS setup program Turn on (or restart) your computer. 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 has initialized.

  • Page 89: Prerequisites

    Prerequisites Remove the computer cover. Remove the front bezel. Procedure Open the side-chassis. Remove the jumper plug from pins 2 and 3 and replace it on pins 1 and 2. Wait for 5 seconds. Remove the jumper plug from pins 1 and 2 and replace it on pins 2 and 3. jumper plug pin 1 pin 2...

  • Page 90: Clearing Cmos Settings

    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 Remove the computer cover. Remove the front bezel.

  • Page 91: Post-Requisites

    Remove the jumper plug from pins 1 and 2 and replace it on pins 2 and 3. jumper plug pin 1 pin 2 pin 3 Close the side-chassis. Post-requisites Replace the front bezel. Replace the computer cover.

  • Page 92: 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: Turn on the computer. Go to www.dell.com/support. Click Product Support, enter the Service Tag of your computer and click Submit.

  • Page 93: 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 www.dell.com services Windows 8.1 and Windows 10 Dell Help & Support app Windows 10 Get started app Windows 8.1...

  • Page 94: Contacting Dell

    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.

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Inspiron 3655

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