Dell OptiPlex 5260 Service Manual
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Dell OptiPlex 5260 Service Manual

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Dell OptiPlex 5260 All-in-One
Service Manual
Regulatory Model: W20B
Regulatory Type: W20B001

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Summary of Contents for Dell OptiPlex 5260

  • Page 1 Dell OptiPlex 5260 All-in-One Service Manual Regulatory Model: W20B Regulatory Type: W20B001...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2017 2018 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

    Contents 1 Working on your computer..........................6 Safety instructions................................6 Turning off your computer — Windows 10........................6 Before working inside your computer..........................7 After working inside your computer..........................7 2 Technology and components..........................8 DDR4....................................8 Key Specifications................................ 8 DDR4 Details.................................9 USB features..................................10 USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB)......................10 Speed...................................
  • Page 4 Installing the system board shield..........................30 Intel Optane..................................31 Removing the Intel Optane card..........................31 Installing the Intel Optane card..........................32 Solid State Drive -SSD..............................33 Removing the SSD card............................33 Installing the SSD card.............................. 34 Solid State Drive -2230..............................35 Removing the 2230 SSD card..........................35 Installing the 2230 SSD card............................
  • Page 5 Installing the middle frame............................105 4 Troubleshooting your computer........................108 Enhanced Pre-Boot System Assessment — ePSA diagnostics................108 Running the ePSA Diagnostics..........................108 Diagnostics..................................109 Camera status indicator..............................109 LCD built in self test - BIST............................109 Invoking BIST................................110 5 Getting help..............................111 Contacting Dell................................. 111 Contents...

  • Page 6: Working On Your Computer

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 7: Before Working Inside Your Computer

    CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers. Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.

  • Page 8: Technology And Components

    Technology and components This chapter details the technology and components available in the system. Topics: • DDR4 • USB features • HDMI DDR4 DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows up to 512 GB in capacity, compared to the DDR3's maximum capacity of 128 GB per DIMM.

  • Page 9: Ddr4 Details

    Feature/Option DDR3 DDR4 DDR 4 Advantages RTT Values (in &Omega) 120,60,40,30,20 240,120,80,60,48,40,34 Support for higher data rates RTT not allowed READ Bursts Disables during READ Bursts Ease of use ODT Modes Nominal, Dynamic Nominal, Dynamic,Park Add’l Control Mode; OTF Value Change ODT Control ODT Signaling Required...

  • Page 10: Usb Features

    Figure 3. Curved edge USB features Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host computers and peripheral devices like mice, keyboards, external drivers, and printers. Let's take a quick look on the USB evolution referencing to the table below. Table 2.

  • Page 11: Applications

    commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480Mbps and 12Mbps respectively and are kept to maintain backward compatibility. USB 3.0/USB 3.1 Gen 1 achieves the much higher performance by the technical changes below: •...

  • Page 12: Compatibility

    Compatibility The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all, while USB 3.0/USB 3.1 Gen 1 specifies new physical connections and thus new cables to take advantage of the higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as before.
  • Page 13 • HDMI supports communication between the video source (such as a DVD player) and the DTV, enabling new functionality Technology and components...

  • Page 14: Removing And Installing Components

    Removing and Installing components Topics: • Recommended tools • Screw size list • System board layout • Rubber feet • Cable cover - optional • Stand • Back cover • Hard drive • Memory module • System board shield • Intel Optane •...

  • Page 15: Screw Size List

    • Plastic scribe NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4 Screw size list Table 3. OptiPlex 5260 All-in-One Component Screw type Quantity Screw image Cable cover M3x9 System board shield...

  • Page 16: System Board Layout

    M3 4+7.1 XZN Power button board M3x5 Microphone M2x2.5 Input and Output board shield M3x5 Input and Output board M2.5x3.5 Headset port M3x5 Antennas M2x2.5 Display panel M3x5 Middle frame M3x5 System board layout OptiPlex 5260 All-in-One Removing and Installing components...

  • Page 17: Rubber Feet

    PSU power connector Processor Memory slots Webcam connector Touch screen cable connector M.2 PCIe/SATA slot System fan connector LPC_Debug Service mode jumper/Password clear jumper/CMOS clear SATA HDD slot jumper SPI header DMIC connector SIO signal connector SIO power connector UAJ connector INT_SPK connector Coin cell battery LVDS connector...

  • Page 18: Removing The Rubber Feet

    Removing the rubber feet Follow the procedure in Before working inside your computer. Remove the Stand. Pry the rubber feet at the bottom edge from the display assembly base and pull it out. Installing the rubber feet Align the rubber feet with the slots on the display assembly base and push it firmly in place. Removing and Installing components...

  • Page 19: Cable Cover - Optional

    Install the Stand. Follow the procedure in After working inside your computer Cable cover - optional Removing the cable cover Follow the procedure in Before working inside your computer. Remove the Stand. Remove the single (M3x9) screw that secures the cable cover to the base cover [1]. Lift the cable cover off the base cover [2].

  • Page 20: Installing The Cable Cover

    Installing the cable cover Place the cable cover on the base cover [1]. Replace the single (M3x9) screw the secures the cable cover to the base cover [2]. Removing and Installing components...

  • Page 21: Stand

    Install the Stand. Follow the procedure in After working inside your computer Stand Removing the stand The following procedure applies only to systems that are shipped with a Height adjustable stand (HAS) stand : Follow the procedure in Before working inside your computer.

  • Page 22: Installing The Stand

    Installing the stand The following procedure applies only to systems that are shipped with a Height adjustable stand (HAS) stand : To install the stand : Align the tabs on the stand [1]. b Snap the stand into place on the back cover [2]. Removing and Installing components...

  • Page 23: Back Cover

    Follow the procedure in After working inside your computer Back cover Removing the back cover Follow the procedure in Before working inside your computer. Remove the Stand. Press and hold the tab on the back cover to release it from the latch on the system-board shield and slide the back cover in the direction shown to release it from the middle frame [1].

  • Page 24: Installing The Back Cover

    Installing the back cover Place the back cover on the system. Press and hold the tab [1], and align the notches on the back cover with the slots on the middle frame. Slide the back cover in the direction shown to lock the back cover tab under the latch on the system-board shield [2]. Removing and Installing components...

  • Page 25: Hard Drive

    Install the Stand. Follow the procedure in After working inside your computer. Hard drive Removing the hard drive assembly Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover To remove the hard drive assembly: Press down the tab securing the hard drive assembly to the system board shield [1].

  • Page 26: Installing The Hard Drive Assembly

    To remove the hard drive bracket: Pry the tabs on hard drive bracket from its slots on the hard drive [1]. b Slide the hard drive, and lift it away from the bracket [2]. Installing the hard drive assembly To install the hard drive bracket: Align the tabs on the hard drive bracket with the slots on the hard drive [1].

  • Page 27: Memory Module

    To install the hard drive assembly: Place the hard drive assembly into the slot [1]. b Slide it to lock the blue tab on the hard drive assembly to the metal tab on the display assembly base [2]. Install the following components: Back cover Stand Follow the procedure in...

  • Page 28: Removing The Memory Module

    Removing the memory module Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover To locate the memory module on the system board, pry open the DIMM door on the system board shield [1]. Pry the retention clips at each end of the memory module slot until the memory module pops up [2].

  • Page 29: System Board Shield

    Install the following components: Back cover Stand Follow the procedure in After working inside your computer. System board shield Removing the system board shield Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover Remove the five (M3x5) screws that secure the system board shield to the display assembly base [1].

  • Page 30: Installing The System Board Shield

    Installing the system board shield Place the system board shield on system board. Align the slots on the system board shield with the slots on the display assembly base [1]. Replace the five screws (M3x5) that secure the system-board shield to the display assembly base [2]. Removing and Installing components...

  • Page 31: Intel Optane

    Install the following components: Back cover Stand Follow the procedure in After working inside your computer. Intel Optane Removing the Intel Optane card Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield Remove the screw (M2x2.5) that secures the Intel Optane card to the system board [1].

  • Page 32: Installing The Intel Optane Card

    Installing the Intel Optane card Replace the thermal pad on the rectangular outline marked on the system board [1]. Insert the Intel Optane card into the card slot on the system board [2]. Replace the screw (M2x2.5) that secures the Intel Optane card to the system board [3]. Removing and Installing components...

  • Page 33: Solid State Drive -Ssd

    Install the following components: System board shield Back cover Stand Follow the procedure in After working inside your computer. Solid State Drive -SSD Removing the SSD card Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...

  • Page 34: Installing The Ssd Card

    Installing the SSD card Replace the thermal pad on the rectangular outline marked on the system board [1]. NOTE: M.2 PCIe SSD with capacity over 512G (512G/1TB/2TB) must be installed with a thermal pad. M.2 SATA SSD and M.2 PCIe SSD with 128G and 256G do not require a thermal pad. Insert the SSD card into the card slot on the system board [2].

  • Page 35: Solid State Drive -2230

    Install the following components: System board shield Back cover Stand Follow the procedure in After working inside your computer. Solid State Drive -2230 Removing the 2230 SSD card Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...

  • Page 36: Installing The 2230 Ssd Card

    Installing the 2230 SSD card Replace the thermal pad on the rectangular outline marked on the system board [1]. Insert the SSD card into the card slot on the system board [2]. Replace the screw (M2x2.5) that secures the SSD card to the system board [3]. Removing and Installing components...

  • Page 37: Wlan Card

    Install the following components: System board shield Back cover Stand Follow the procedure in After working inside your computer. WLAN card Removing the WLAN card Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield To remove the WLAN card shield: Remove the two screws (M2x2.5) that secure the WLAN card shield to the system board [1].
  • Page 38 To remove the WLAN card: Remove the screw (M2x2.5) that secures the WLAN card bracket and the WLAN to the system board [1]. b Slide and lift the WLANs card bracket off the WLAN card [2]. Disconnect the antenna cables from the WLAN card [3]. d Slide and remove the WLAN card out of the WLAN card slot [4].

  • Page 39: Installing The Wlan Card

    Installing the WLAN card To install the WLAN card: Align and replace the WLAN card into the WLAN card slot [1]. b Connect the antenna cables to the WLAN card [2]. Replace the WLAN card bracket on the WLAN card [3]. d Replace the screw (M2x2.5) that secures the WLAN card bracket and the WLAN to the system board [4].
  • Page 40 To install the WLAN card shield: Align the screw slot on the WLAN card shield with the screw slot on the system board and place the WLAN card shield on the system board [1]. b Replace the two screws (M2x2.5) that secure the WLAN card shield to the system board [2] Removing and Installing components...

  • Page 41: System Fan

    Install the following components: system board shield Back cover Stand Follow the procedure in After working inside your computer. System fan Removing the system fan Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield Disconnect the system fan cable from the socket on the system board [1].

  • Page 42: Installing The System Fan

    Installing the system fan Align the screw slots on the system fan with the screw slots on the display assembly base [1]. Replace the three screws (M3x5) that secure the system fan to the display assembly base [2]. Connect the system fan cable to the socket on the system board [3]. Removing and Installing components...

  • Page 43: Heat Sink

    Install the following components: System board shield Back cover Stand Follow the procedure in After working inside your computer. Heat sink Removing the heat sink - UMA Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...
  • Page 44 Lift the heat sink off the system board and display assembly base . Removing and Installing components...

  • Page 45: Installing The Heat Sink - Uma

    Installing the heat sink - UMA Align the captive screws on the heat sink with the screw slots on the system board and the display assembly base .. Removing and Installing components...
  • Page 46 Tighten the five captive screws in a sequential order [1,2,3,4,5] to secure the heat sink to the system board and display assembly base.. Removing and Installing components...

  • Page 47: Pop-Up Camera

    Install the following components: System fan System board shield Back cover Stand Follow the procedure in After working inside your computer. Pop-Up Camera Removing the pop-up camera Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...
  • Page 48 To remove the pop-up camera assembly: Remove the two screws (M3x5) that secure the pop-up camera assembly to the middle frame [1]. b Slide the pop-up camera assembly forward [2]. To remove the pop-up camera assembly off the middle frame, unroute the camera cable from the routing channel [3]. Removing and Installing components...
  • Page 49 To remove the pop-up camera bezel: Press the top of the pop-up camera assembly to extend the pop-up camera. b Remove the three screws (M3x5) that secure the bezel to the pop-up camera assembly [2]. Lift the pop-up camera bezel off the pop-up camera assembly [3]. To remove the pop-up camera module: Release the camera module from the tab [1].

  • Page 50: Installing The Pop-Up Camera

    Installing the pop-up camera Follow the procedure in After working inside your computer. To install the pop-up camera module: Replace the camera module along with the camera cable in the slot on the pop-up camera assembly [1]. b Snap the pop-up camera assembly in place to the tab [2]. To install the pop-up camera bezel: Align the screw slots on the pop-up camera bezel with the screw slots on the pop-up camera assembly [1].
  • Page 51 To install the pop-up camera assembly: Route the camera cable through to the routing channel [1]. b Align and place the pop-up camera assembly on the display panel base [2]. Replace the two screws (M3x5) that secure the pop-up camera assembly to the middle frame [3]. To replace the camera assembly cover: Connect the camera cable to the system board [1].

  • Page 52: Coin Cell Battery

    Replace the two screws (M3x5) that secure the camera assembly cover to the middle frame [3]. Install the following components: System board shield Back cover Stand Coin cell battery Removing the coin cell battery Follow the procedure in Before working inside your computer.

  • Page 53: Installing The Coin Cell Battery

    Installing the coin cell battery Insert the coin cell battery into the battery socket on the system board, with the positive side facing up [1]. Press down the battery into place until it fits securely [2]. Removing and Installing components...

  • Page 54: Processor

    Install the following components: System board shield Back cover Stand Follow the procedure in After working inside your computer. Processor Removing the processor Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield Heat sink To remove the processor: Release the socket lever by pushing the lever down and out from under the tab on the processor shield [1].

  • Page 55: Installing The Processor

    Installing the processor To install the processor: Ensure that the release lever on the processor socket is fully extended in the open position. Align the notches on the processor with the tabs on the processor socket and place the processor in the processor socket [1]. CAUTION: The pin-1 corner of the processor has a triangle that aligns with the triangle on the pin-1 corner on the processor socket.

  • Page 56: Base Cover

    Install the following components: Heat sink System board shield Back cover Stand Follow the procedure in After working inside your computer. NOTE: If the processor is replaced, use the thermal grease provided in the kit to ensure that thermal conductivity is achieved.
  • Page 57 Pry and lift the base cover off the middle frame. Removing and Installing components...

  • Page 58: Installing The Base Cover

    Installing the base cover Align and place the tabs on the base cover with the slots on the middle frame [1]. Press the base cover down until it snaps into place on the middle frame [2]. Replace the four screws (M3x5) that secure the base cover to the display assembly base. Removing and Installing components...

  • Page 59: Power Supply Unit - Psu

    Install the following components: System board shield Back cover Cable cover Stand Follow the procedure in After working inside your computer. Power supply unit - PSU Removing the power supply unit -PSU Follow the procedure in Before working inside your computer.
  • Page 60 To remove the PSU: Remove the single (M3x5) screw that secures the PSU to the display assembly base [1] and then slide the PSU forward [2]. Removing and Installing components...
  • Page 61 b Slide the PSU, and lift it away from the chassis . Removing and Installing components...

  • Page 62: Installing The Power Supply Unit -Psu

    Installing the power supply unit -PSU To install the PSU: Align and slide the PSU, in to the slot on the display assembly base [1]. b Replace the single screw (M3x5) that secures the PSU to the chassis [2]. To install the PSU cable: Connect the power supply cable to the socket on the system board [1].

  • Page 63: Power Supply Unit Fan - Psu Fan

    Install the following components: Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Power supply unit fan - PSU fan Removing the power supply unit fan -PSU fan Follow the procedure in Before working inside your computer.
  • Page 64 To disconnect the PSU fan: Remove two (M3x5) screws that secure the PSU fan to the display assembly base [1]. b Lift the PSU fan away from the chassis [2]. Removing and Installing components...

  • Page 65: Installing The Power Supply Unit -Psu Fan

    Installing the power supply unit -PSU fan To install the PSU fan: Align and place the PSU fan on the chassis [1]. b Replace the two (M3x5) screws that secure the PSU fan to the display assembly base [2]. Removing and Installing components...
  • Page 66 To replace the PSU Fan cable: Route the PSU fan cable through the retention tab [1]. b Connect the PSU fan cable to the socket on the system board [2]. Route the power supply cables to the retention clips on the PSU fan. Removing and Installing components...

  • Page 67: Input And Output Bracket

    Install the following components: Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Input and Output bracket Removing the Input and Output bracket Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover...
  • Page 68 To remove the Input and Output (I/O) bracket: Remove the three (M3x5) screws that secure the I/O bracket to the display assembly base [1]. b Lift the I/O bracket off the display assembly base [2]. Removing and Installing components...

  • Page 69: Installing The Input And Output Bracket

    Installing the Input and Output bracket To install the Input and Output bracket (I/O) bracket: Align the slots on the Input and Output bracket (I/O) bracket with the ports on the system board [1]. b Replace the three screws (M3x5) that secure the I/O bracket to the display assembly base [2]. Removing and Installing components...
  • Page 70 To install the PSU cable: Route back the power supply cables through the retention clips in the chassis [1]. b Slide and replace the power supply socket on the chassis [2]. Replace the single (M3x5) screw securing the power supply socket to the I/O bracket [3]. Removing and Installing components...

  • Page 71: System Board

    Install the following components: Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. System board Removing the system board Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover Hard drive...
  • Page 72 Heat sink Processor Base cover I/O bracket. Disconnect the following cables from the system board: • Power supply unit cable [1] • Camera cable [2] • Touch cable [3] • SIO_power,SIO_signal, UAJ, INT_speaker,DMIC cables [4] • LVDC cable [5] • Power button board cable [6] •...

  • Page 73: Installing The System Board

    Installing the system board Align the screw slots on the system board with the screw slots on the display assembly base [1]. Replace the eight screws (M3x5) that secure the system board to the display assembly base [2]. Removing and Installing components...
  • Page 74 Connect the following cables to the system board: • Power supply unit cable [1] • Camera cable [2] • Touch cable [3] • SIO_power,SIO_signal, UAJ, INT_speaker,DMIC cables [4] • LVDC cable [5] • Power button board cable [6] • PSU fan cable [7] •...

  • Page 75: Speakers

    Install the following components: I/O bracket Base cover Processor Heat sink System fan WLAN card Intel Optane System board shield Memory Hard drive Back cover Stand Follow the procedure in After working inside your computer Speakers Removing the speakers Follow the procedure in Before working inside your computer.
  • Page 76 Stand Back cover System board shield Base cover I/O bracket To disconnect the speakers: Disconnect the speaker cable from the system board [1]. b Unroute the speaker cable from the routing guide on the display assembly base [2]. Remove the four screws (M3x4+7.1) that secure the speakers to the display-assembly base [1]. d Lift the speakers and the speaker cable off the display assembly base [2].

  • Page 77: Installing The Speakers

    Installing the speakers To replace the speakers: Place the speakers on the display assembly base and align the screw slots on the speakers with the screw slots on the display assembly base [1]. b Replace the eight screws (M3x4+7.1) that secure the speakers to the display assembly base [2]. Removing and Installing components...
  • Page 78 Route the speaker cable through the routing guides on the display assembly base [1]. d Connect the speaker cable to the socket on the system board [2]. Removing and Installing components...

  • Page 79: Power Button Board

    Install the following components: I/O bracket Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Power button board Removing the power button board Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover...
  • Page 80 Remove the single screw (M3x5) that secures the power button board to the middle frame [1]. Lift the power-button board, along with its cable, off the middle frame [2]. Removing and Installing components...

  • Page 81: Installing The Power Button Board

    Installing the power button board To install the speakers: Using the alignment post, place the power button board into its slot on the middle frame [1]. b Replace the single screw (M3x5) that secures the power button board to the middle frame [2]. Removing and Installing components...
  • Page 82 Slide the power button board cable under the antenna cable [1]. d Slide the power button board cable under the antenna cable, then adhere the power button board cable to the display assembly base [2]. Slide the power button board cable into the socket on the system board and close the latch to secure the cable [3]. Removing and Installing components...

  • Page 83: Microphones

    Install the following components: PSU fan Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Microphones Removing the microphones Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...
  • Page 84 Disconnect the microphone module cable from the system board [1]. b Unroute the microphone module cable from the routing guides on the display assembly base [2]. Remove the two screws (M2x2.5) that secure the microphone modules to the middle frame [1,3]. d Lift the microphone modules off the slots on the middle frame [2,4].

  • Page 85: Installing The Microphones

    Installing the microphones To install the microphone and cable: Align and place the microphone modules to the slots on the middle frame [1,3]. NOTE: Match the numbers on the microphone modules to the numbers on the middle frame while placing the microphone modules on the middle frame.
  • Page 86 Route the microphone module cable through the routing guides on the display assembly base [1]. d Connect the microphones module cable to the socket on the system board [2]. Removing and Installing components...

  • Page 87: Input And Output Board

    Install the following components: Speakers I/O bracket Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Input and Output board Removing the Input and Output board Follow the procedure in Before working inside your computer.
  • Page 88 b Remove the I/O board cable, I/O-board power cable, and headset port cable from the routing guides on the display assembly base [2]. Remove the two screws (M3x5) securing the I/O board shield to the display assembly base [3]. d Lift the I/O board shield from the display assembly base [4]. To remove the I/O board: Remove the headset port cable from the routing guide on the I/O board [1].

  • Page 89: Installing The Input And Output Board

    Installing the input and output board To replace the I/O board: Place and align the Input and Output board (I/O) board onto the display assembly base [1]. b Replace the two screws (M3x5) that secure the I/O board to the display assembly base [2]. Route the headset port cable through the routing guide on the I/O board [3].
  • Page 90 To replace the I/O board shield: Place and align the screw slots on the I/O board shield to the slots on the display assembly base [1]. b Replace the two screws (M3x5) that secure the I/O board shield to the display assembly base [2]. Route the headset port cable, I/O board cable, and I/O board power cable through the routing guides on the display assembly base [3].

  • Page 91: Headset Port

    Install the following components: Speakers I/O bracket Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Headset port Removing the headset port Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...

  • Page 92: Installing The Headset Port

    Remove the single (M3x5) screw that secures the headset port to the display assembly base [1]. Lift the headset port with its cable from the display assembly base [2]. Installing the headset port Slide the headset port into its slot on the middle frame and align the screw slot on the headset port to the screw slot on the display assembly base [1].

  • Page 93: Antennas

    Install the following components: I/O board Speakers I/O bracket Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Antennas Removing the antennas Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover System board shield...
  • Page 94 WLAN card I/O board PSU fan To remove the antenna : Remove the antenna cables from the routing guides on the display assembly base [1,2]. b Carefully peel the tape that secures the antenna cables (2) to the middle frame [1,4]. Remove the two screws (M2x2.5) that secure the antenna modules (2) to the middle frame [2,5].

  • Page 95: Installing The Antennas

    Installing the antennas To replace the antenna modules: Align the antenna modules (2) with the slots on the middle frame [1,4]. b Replace the two screws (M2x2.52) that secure the antenna modules (2) to the middle frame [2,5]. Adhere the tape that secures the antenna cables (2) to the middle frame [3,6]. Removing and Installing components...
  • Page 96 d Route the antenna cables through the routing guides on the display assembly base [1,2]. Removing and Installing components...

  • Page 97: Display Panel

    Install the following components: PSU fan I/O board WLAN card Speakers I/O bracket Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Display panel Removing the display panel Follow the procedure in Before working inside your computer.
  • Page 98 System fan Hard drive WLAN card System board PSU fan Camera Remove the display backlight cable from the routing guides on the display assembly base [1]. Remove the 8 screws (M3x5) that secure the middle frame and display assembly base to the display panel [2]. NOTE: The screws that secure the middle frame and display assembly base to the display panel are silver in color and etched with "LCD"...

  • Page 99: Installing The Display Panel

    Installing the display panel Place the display assembly base in its upright position, and slide the display panel into the slot between the middle frame and the display assembly base [1]. Route the touchscreen cable through the routing guide on the display assembly base. Push the display backlight cable through the slots on the display assembly base [2].
  • Page 100 Place the display assembly base on a clean and flat surface with the display panel facing down. Replace the 8 (M3x5) screws that secure the display panel to the middle frame and display assembly base 1 . Route the display backlit cable through the routing guides on the display assembly base 2. NOTE: The screws that secure the middle frame and display assembly base to the display panel are silver in color and etched with "LCD"...

  • Page 101: Display Cable

    Install the following components: Camera PSU fan System board WLAN card Hard drive System fan I/O bracket Base cover System board shield Back cover Stand Follow the procedure in After working inside your computer. Display cable Removing the display cable Follow the procedure in Before working inside your computer.

  • Page 102: Installing The Display Cable

    Back cover Hard drive System board shield WLAN card System fan Camera Base cover PSU fan I/O bracket System board Speakers Power button board Microphones I/O board Headset port Antennas Display panel To remove the display cable: To release the cable, press the tabs on both sides [1]. b Disconnect the cable, and lift it away from the display assembly base [2].

  • Page 103: Middle Frame

    b Connect the cable, and lift it away from the display assembly base [2]. Install the following components: Display panel Antennas Headset port I/O board Microphones Power button board Speakers System board I/O bracket PSU fan Base cover Camera System fan WLAN card System board shield Hard drive...

  • Page 104: Removing The Middle Frame

    Removing the middle frame Follow the procedure in Before working inside your computer. Remove the following components: Stand Back cover Hard drive System board shield WLAN card System fan Camera Base cover PSU fan I/O bracket System board Speakers Power button board Microphones I/O board Headset port...

  • Page 105: Installing The Middle Frame

    Installing the middle frame Starting from the location shown, slide and align the middle frame to the slots on the display assembly base, and then snap the middle frame into place on the display assembly base [1,2]. Removing and Installing components...
  • Page 106 Press and secure and the tabs on the middle frame to the slots on the display assembly base [1]. Replace the 11 screws (M3x5) that secure the middle frame to the display assembly base [2]. Removing and Installing components...
  • Page 107 Install the following components: Display panel Antennas Headset port I/O board Microphones Power button board Speakers System board I/O bracket PSU fan Base cover Camera System fan WLAN card System board shield Hard drive Back cover Stand Follow the procedure in After working inside your computer.

  • Page 108: Troubleshooting Your Computer

    Invoke diagnostics boot by either of the methods that are suggested below: Power on the computer. As the computer boots, press the F12 key when the Dell logo is displayed. In the boot menu screen, use Up/Down arrow key to select the Diagnostics option and then press Enter.

  • Page 109: Diagnostics

    LCD built in self test - BIST All-in-One (AIO) systems supports LCD BIST similar to any other Dell systems that have BIST test implemented. It allows the user to isolate the LCD during troubleshooting to determine which sub-system is at fault. The main difference is the lack of an integrated keyboard scan...

  • Page 110: Invoking Bist

    controller in the AIO. When BIST is initiated, an internal generated pattern from the LCD will be emitted for user's observation. This pattern will go by sequence through this pattern, Red- Green-Blue-White-Blue where each pattern is emitted for 2 to 3 seconds. The following images displays the pattern of the colors on the LCD: Standard display Alternative display...

  • Page 111: Getting Help

    Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Go to Dell.com/support.

This manual is also suitable for:

Optiplex 5260 all-in-oneW20b

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