Dell OptiPlex 7470 All-in-One Service Manual
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Dell OptiPlex 7470 All-in-One Service Manual

Dell OptiPlex 7470 All-in-One Service Manual

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Dell OptiPlex 7470 All-in-One
Service Manual
Regulatory Model: W19C
Regulatory Type: W19C001

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Summary of Contents for Dell OptiPlex 7470 All-in-One

  • Page 1 Dell OptiPlex 7470 All-in-One Service Manual Regulatory Model: W19C Regulatory Type: W19C001...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 - 2019 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 USB features..................................10 HDMI......................................12 3 Removing and Installing components....................
  • Page 4 Installing the 2230 SSD card............................34 WLAN card...................................35 Removing the WLAN card............................35 Installing the WLAN card.............................. 37 System fan................................... 39 Removing the system fan.............................39 Installing the system fan............................... 40 Heat sink....................................41 Removing the heat sink - dGPU...........................41 Installing the heat sink - dGPU............................ 42 Removing the heat sink - UMA............................43 Installing the heat sink - UMA............................
  • Page 5 Removing the middle frame............................88 Installing the middle frame............................90 4 Troubleshooting your computer....................93 Enhanced Pre-Boot System Assessment — ePSA diagnostics................... 93 Running the ePSA Diagnostics............................ 93 Diagnostics................................... 93 LCD built in self test - BIST..............................94 5 Getting help..........................96 Contacting Dell..................................96 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. 1. 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 Feature/Option DDR3 DDR4 DDR 4 Advantages Multi-Purpose Register Four Registers – 1 Defined, 3 Four Registers – 3 Defined, 1 Provides Additional Specialty Readout DIMM Types RDIMM, LRDIMM, UDIMM, RDIMM, LRDIMM, UDIMM, SODIMM SODIMM DIMM Pins 240 (R, LR, U); 204 (SODIMM) 288 (R, LR, U);...

  • Page 10: Usb Features

    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 With today's ever increasing demands placed on data transfers with high-definition video content, terabyte storage devices, high megapixel count digital cameras etc., USB 2.0 may not be fast enough. Furthermore, no USB 2.0 connection could ever come close to the 480Mbps theoretical maximum throughput, making data transfer at around 320Mbps (40MB/s) —...

  • Page 12: Hdmi

    HDMI This topic explains the HDMI 1.4/ 2.0 and its features along with the advantages. HDMI (High-Definition Multimedia Interface) is an industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an interface between any compatible digital audio/video source, such as a DVD player, or A/V receiver and a compatible digital audio and/or video monitor, such as a digital TV (DTV).

  • Page 13: 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 14: Screw Size List

    Screw size list Table 3. OptiPlex 7470 All-in-One Component Screw type Quantity Screw image Cable cover M3x9 System board shield M3x5 Solid-state drive/Intel Optane M2x2.5 card WLAN card shield M2x2.5 WLAN card M2x2.5 System fan M3x5 Pop-up camera assembly M3x5...

  • Page 15: System Board Layout

    Component Screw type Quantity Screw image Input and Output board shield M3x5 Input and Output board M3x5 Headset port M3x5 Antennas M2x2.5 Display panel M3x5 Middle frame M3x5 System board layout OptiPlex 7470 All-in-One Removing and Installing components...
  • Page 16 1. PSU power connector 2. Processor 3. Memory slots 4. Back light connector 5. Webcam connector 6. M.2 PCIe/SATA slot 7. System fan connector 8. LPC_Debug 9. Service mode jumper/Password clear jumper/CMOS clear jumper 10. SATA HDD connector 11. SPI header 12.

  • Page 17: Rubber Feet

    22. eDP cable connector 23. Touch cable connector Rubber feet Removing the rubber feet 1. Follow the procedure in Before working inside your computer. 2. Remove the Stand. 3. Pry the rubber feet at the bottom edge from the display assembly base and pull it out. Installing the rubber feet 1.

  • Page 18: Cable Cover - Optional

    2. Install the Stand. 3. Follow the procedure in After working inside your computer Cable cover - optional Removing the cable cover 1. Follow the procedure in Before working inside your computer. 2. Remove the Stand. 3. Remove the single (M3x9) screw that secures the cable cover to the base cover [1]. 4.

  • Page 19: Installing The Cable Cover

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

  • Page 20: Stand

    3. Install the Stand. 4. 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 Basic All-in-One stand: 1. Follow the procedure in Before working inside your computer.

  • Page 21: Installing The Stand

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

  • Page 22: Back Cover

    2. Follow the procedure in After working inside your computer Back cover Removing the back cover 1. Follow the procedure in Before working inside your computer. 2. Remove the Stand. 3. 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 23: Hard Drive

    4. Install the Stand. 5. Follow the procedure in After working inside your computer. Hard drive Removing the hard drive assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover 3. To remove the hard drive assembly: a) Press down the tab securing the hard drive assembly to the system board shield [1].

  • Page 24: Installing The Hard Drive Assembly

    4. To remove the hard drive bracket: a) 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 1.

  • Page 25: Memory Module

    2. To install the hard drive assembly: a) 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]. 3.

  • Page 26: Installing The Memory Module

    Stand Back cover 3. To locate the memory module on the system board, pry open the DIMM door on the system board shield [1]. 4. Pry the retention clips at each end of the memory module slot until the memory module pops up [2]. 5.

  • Page 27: System Board Shield

    4. Install the following components: Back cover Stand 5. Follow the procedure in After working inside your computer. System board shield Removing the system board shield 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover 3.

  • Page 28: Installing The System Board Shield

    Installing the system board shield 1. Place the system board shield on system board. 2. Align the slots on the system board shield with the slots on the display assembly base [1]. 3. Replace the five screws (M3x5) that secure the system-board shield to the display assembly base [2]. Removing and Installing components...

  • Page 29: Intel Optane

    4. Install the following components: Back cover Stand 5. Follow the procedure in After working inside your computer. Intel Optane Removing the Intel Optane card 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield...

  • Page 30: Installing The Intel Optane Card

    Installing the Intel Optane card 1. Replace the thermal pad on the rectangular outline marked on the system board [1]. 2. Insert the Intel Optane card into the card slot on the system board [2]. 3. Replace the screw (M2x2.5) that secures the Intel Optane card to the system board [3]. NOTE: Intel Optane modules must be installed with a thermal pad.

  • Page 31: Solid State Drive -Ssd

    4. Install the following components: System board shield Back cover Stand 5. Follow the procedure in After working inside your computer. Solid State Drive -SSD Removing the SSD card 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield...

  • Page 32: Installing The Ssd Card

    Installing the SSD card 1. 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. 2.

  • Page 33: Solid State Drive -2230

    4. Install the following components: System board shield Back cover Stand 5. Follow the procedure in After working inside your computer. Solid State Drive -2230 Removing the 2230 SSD card 1. Follow the procedure in Before working inside your computer. 2.

  • Page 34: Installing The 2230 Ssd Card

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

  • Page 35: Wlan Card

    4. Install the following components: System board shield Back cover Stand 5. Follow the procedure in After working inside your computer. WLAN card Removing the WLAN card 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield...
  • Page 36 4. To remove the WLAN card: a) 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]. c) Disconnect the antenna cables from the WLAN card [3]. d) Slide and remove the WLAN card out of the WLAN card slot [4].

  • Page 37: Installing The Wlan Card

    Installing the WLAN card 1. To install the WLAN card: a) Align and replace the WLAN card into the WLAN card slot [1]. b) Connect the antenna cables to the WLAN card [2]. c) 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 38 2. To install the WLAN card shield: a) 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] c) Reroute the antenna cable through to the routing channel [3].

  • Page 39: System Fan

    3. Install the following components: system board shield Back cover Stand 4. Follow the procedure in After working inside your computer. System fan Removing the system fan 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield...

  • Page 40: Installing The System Fan

    Installing the system fan 1. Align the screw slots on the system fan with the screw slots on the display assembly base [1]. 2. Replace the three screws (M3x5) that secure the system fan to the display assembly base [2]. 3.

  • Page 41: Heat Sink

    4. Install the following components: System board shield Back cover Stand 5. Follow the procedure in After working inside your computer. Heat sink The following topics lists heat sink removing and installing steps for unified memory architecture (UMA) and discrete graphics processing unit (dGPU).

  • Page 42: Installing The Heat Sink - Dgpu

    Installing the heat sink - dGPU 1. Align the captive screws on the heat sink with the screw slots on the system board and the display assembly base [1]. 2. In the sequential order (as indicated on the heat sink), tighten the captive screws that secure the heat sink to the system board and display assembly base [2].

  • Page 43: Removing The Heat Sink - Uma

    System fan System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. Removing the heat sink - UMA 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield System fan...

  • Page 44: Pop-Up Camera

    3. Install the following components: System fan System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. Pop-Up Camera Removing the pop-up camera 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield...
  • Page 45 4. To remove the camera bezel: a) Press the top of the pop-up camera assembly to extend the pop-up camera [1]. b) Remove the three screws (M3x5) that secure the bezel to the pop-up camera assembly [2]. 5. To remove the pop-up camera module: a) Lift the pop-up camera bezel off the pop-up camera assembly [1].

  • Page 46: Installing The Pop-Up Camera

    Installing the pop-up camera 1. Follow the procedure in After working inside your computer. 2. To replace the camera module: a) Replace the camera module along with the camera cable in the slot on the pop-up camera assembly [1]. b) Align the screw slots on the pop-up camera bezel with the screw slots on the pop-up camera assembly [2]. 3.
  • Page 47 4. To replace the camera assembly: a) Align and place the pop-up camera assembly on the display panel base and route the camera cable through to the routing channel [1]. b) Replace the two screws (M3x5) that secure the pop-up camera assembly to the middle frame [2]. c) Connect the camera cable to the system board [3].

  • Page 48: Coin Cell Battery

    Coin cell battery Removing the coin cell battery 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield 3. Press the tab on the coin cell battery socket until the coin cell battery pops up [1]. 4.

  • Page 49: Processor

    3. Install the following components: System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. Processor Removing the processor 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover System board shield...

  • Page 50: Installing The Processor

    Installing the processor 1. To install the processor: a) 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 51: Base Cover

    2. Install the following components: Heat sink System board shield Back cover Stand 3. 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 52 4. Pry and lift the base cover off the middle frame. Removing and Installing components...

  • Page 53: Installing The Base Cover

    Installing the base cover 1. Align and place the tabs on the base cover with the slots on the middle frame [1]. 2. Press the base cover down until it snaps into place on the middle frame [2]. 3. Replace the four screws (M3x5) that secure the base cover to the display assembly base. Removing and Installing components...

  • Page 54: Power Supply Unit - Psu

    4. Install the following components: System board shield Back cover Cable cover Stand 5. Follow the procedure in After working inside your computer. Power supply unit - PSU Removing the power supply unit -PSU 1. Follow the procedure in Before working inside your computer.
  • Page 55 4. To remove the PSU: a) Remove the single (M3x5) screw that secures the PSU to the display assembly base [1]. b) Slide the PSU, and lift it away from the chassis [2]. Removing and Installing components...

  • Page 56: Installing The Power Supply Unit -Psu

    Installing the power supply unit -PSU 1. To install the PSU: a) 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]. 2.

  • Page 57: Power Supply Unit Fan - Psu Fan

    3. Install the following components: Base cover System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. Power supply unit fan - PSU fan Removing the power supply unit fan -PSU fan 1. Follow the procedure in Before working inside your computer.

  • Page 58: Installing The Power Supply Unit -Psu Fan

    Installing the power supply unit -PSU fan 1. To install the PSU fan: a) 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]. c) Connect the PSU fan cable to the socket on the system board [3].

  • Page 59: Input And Output Bracket

    2. Install the following components: Base cover System board shield Back cover Stand 3. Follow the procedure in After working inside your computer. Input and Output bracket Removing the Input and Output bracket 1. Follow the procedure in Before working inside your computer.
  • Page 60 5. To remove the Input and Output (I/O) bracket: a) 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 61: Installing The Input And Output Bracket

    Installing the Input and Output bracket 1. To install the Input and Output bracket (I/O) bracket: a) 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]. 2.

  • Page 62: System Board

    3. Install the following components: Base cover System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. System board Removing the system board 1. Follow the procedure in Before working inside your computer. 2. Remove the following components: Stand Back cover Hard drive...
  • Page 63 • PSU fan cable [1] • Power supply unit cable [2] • Backlight cable [3] • Camera cable [4] • SIO_signal,SIO power, INT_ speaker, and DMIC cables [1] • Power button board cable [2] • LVDS cable [3] Removing and Installing components...
  • Page 64 4. Remove the nine screws (M3x5) that secure the system board to the display assembly base [1]. 5. Lift the system board off the display assembly base [2]. Removing and Installing components...

  • Page 65: Installing The System Board

    Installing the system board 1. Align the screw slots on the system board with the screw slots on the display assembly base [1]. 2. Replace the nine screws (M3x5) that secure the system board to the display assembly base [2]. Removing and Installing components...
  • Page 66 3. Connect the following cables to the system board: • Camera cable [1] • Backlight cable [2] • Power supply unit cable [3] • PSU fan cable [4] Removing and Installing components...
  • Page 67 • LVDS cable [1] • Power button board cable [2] • SIO_signal,SIO power,INT_ speaker, and DMIC cables [3] Removing and Installing components...

  • Page 68: Speakers

    4. 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 5. Follow the procedure in After working inside your computer Speakers Removing the speakers 1.

  • Page 69: Installing The Speakers

    I/O bracket 3. To disconnect the speakers: a) Disconnect the speaker cable from the system board [1]. b) Remove the six screws (M3x4+7.1) that secure the speakers to the display-assembly base [2]. c) Unroute the speaker cable from the routing guide on the display assembly base [3]. d) Lift the speakers and the speaker cable off the display assembly base [4].

  • Page 70: Power Button Board

    2. Install the following components: I/O bracket Base cover System board shield Back cover Stand 3. Follow the procedure in After working inside your computer. Power button board Removing the power button board 1. Follow the procedure in Before working inside your computer.

  • Page 71: Installing The Power Button Board

    Installing the power button board 1. To install the speakers: a) 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]. c) Slide the power button board cable under the antenna cable, then adhere the power button board cable to the display assembly base [3].

  • Page 72: Microphones

    2. Install the following components: Speakers I/O bracket Base cover System board shield Back cover Stand 3. Follow the procedure in After working inside your computer. Microphones Removing the microphones 1. Follow the procedure in Before working inside your computer. 2.

  • Page 73: Installing The Microphones

    Installing the microphones 1. To install the microphone and cable: a) Align and place the microphone modules to the slots on the middle frame [1]. 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 74: Input And Output Board

    2. Install the following components: Speakers I/O bracket Base cover System board shield Back cover Stand 3. Follow the procedure in After working inside your computer. Input and Output board Removing the Input and Output board 1. Follow the procedure in Before working inside your computer.
  • Page 75 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]. c) 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].

  • Page 76: Installing The Input And Output Board

    Installing the input and output board 1. To replace the I/O board: a) 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]. c) Route the headset port cable through the routing guide on the I/O board [3].
  • Page 77 2. To replace the I/O board shield: a) 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]. c) 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 78: Headset Port

    3. Install the following components: Hard drive Speakers I/O bracket Base cover System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. Headset port Removing the headset port 1. Follow the procedure in Before working inside your computer.

  • Page 79: Installing The Headset Port

    Installing the headset port 1. 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]. 2. Replace the single (M3x5) screw that secures the headset port to the display assembly base [2]. Removing and Installing components...

  • Page 80: Antennas

    3. Install the following components: I/O board Hard drive Speakers I/O bracket Base cover System board shield Back cover Stand 4. Follow the procedure in After working inside your computer. Antennas Removing the antennas 1. Follow the procedure in Before working inside your computer.

  • Page 81: Installing The Antennas

    3. To remove the antenna: a) Remove the antenna cables from the routing guides on the display assembly base [1]. b) Remove the two screws (M2x2.5) that secure the antenna modules (2) to the middle frame [2]. c) Carefully peel the tape that secures the antenna cables (2) to the middle frame [3]. d) Release the antenna modules (2) from the tabs and lift the antenna modules off the middle frame.

  • Page 82: Display Panel

    2. Install the following components: PSU fan I/O board WLAN card Speakers I/O bracket Base cover System board shield Back cover Stand 3. Follow the procedure in After working inside your computer. Display panel Removing the display panel 1. Follow the procedure in Before working inside your computer.
  • Page 83 System board PSU fan Camera 3. Remove the display backlight cable from the routing guides on the display assembly base [1]. 4. Remove the 11 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 84: Installing The Display Panel

    Installing the display panel 1. 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]. 2. Route the touchscreen cable through the routing guide on the display assembly base. 3.
  • Page 85 5. Place the display assembly base on a clean and flat surface with the display panel facing down. 6. Replace the 11 (M3x5) screws that secure the display panel to the middle frame and display assembly base [1] . 7. 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 86: Display Cable

    8. 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 9. Follow the procedure in After working inside your computer. Display cable Removing the display cable 1.

  • Page 87: Installing The Display Cable

    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 3. To remove the display cable: a) Fold the securing tape inward [1]. b) To release the cable, press the tabs on both sides [2].

  • Page 88: Middle Frame

    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 Back cover Stand 3. Follow the procedure in After working inside your computer.
  • Page 89 2. 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 Antennas Display panel 3. Remove the 15 screws (M3x5) that secure the middle frame to the display assembly base [1]. 4.

  • Page 90: Installing The Middle Frame

    Installing the middle frame 1. 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 91 2. Press and secure and the tabs on the middle frame to the slots on the display assembly base [1]. 3. Replace the 15 screws (M3x5) that secure the middle frame to the display assembly base [2]. Removing and Installing components...
  • Page 92 4. 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 5. Follow the procedure in After working inside your computer.

  • Page 93: Troubleshooting Your Computer

    Invoke diagnostics boot by either of the methods that are suggested below: 1. Power on the computer. 2. As the computer boots, press the F12 key when the Dell logo is displayed. 3. In the boot menu screen, use Up/Down arrow key to select the Diagnostics option and then press Enter.

  • Page 94: Lcd Built In Self Test - Bist

    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 controller in the AIO.
  • Page 95 Alternative display Invoking BIST To invoke the LCD BIST, turn on the system and press and hold the Display Built-in Self Test button plus the Power button together. Release the buttons when Red- Green-Blue-White-Blue pattern is displayed on screen. Troubleshooting your computer...

  • Page 96: 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: 1.

This manual is also suitable for:

W19cW19c001

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