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Dell S2722DGM Simplified Service Manual

Dell S2722DGM Simplified Service Manual

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Product Announcement:
This product is certificated to meet RoHS
Directive and Lead-Free produced definition.
Using approved critical components only is
recommended when the situation to replace
defective parts. Vender assumes no liability
express or implied, arising out of any unauthorized
modification of design or replacing non-RoHS
parts. Service providers assume all liability.
Qualified Repairability:
Proper service and repair is important to the safe,
reliable operation of all series products. The
service providers recommended by vender should
be aware of notices listed in this service manual in
order to minimize the risk of personal injury when
perform service procedures. Furthermore, the
possible existed improper repairing method may
damage equipment or products. It is recommended
that service engineers should have repairing
knowledge, experience, as well as appropriate
product training per new model before performing
the service procedures.
NOTICE:
! To avoid electrical shocks, the products should be
connected to an authorized power cord, and turn
off the master power switch each time before
removing the AC power cord.
! To prevent the product away from water or
expose in extremely high humility environment.
! To ensure the continued reliability of this
product, use only original manufacturer's
specified parts.
! To ensure following safety repairing behavior, put
the replaced part on the components side of
PWBA, not solder side.
1. Important Safety Notice
! To ensure using a proper screwdriver, follow the
! Using Lead-Free solder to well mounted the
! The fusion point of Lead-Free solder requested in
torque and force listed in assembly and
disassembly procedures to unscrew screws.
parts.
the degree of 220°C.

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Summary of Contents for Dell S2722DGM

  • Page 1 1. Important Safety Notice Product Announcement: ! To ensure using a proper screwdriver, follow the This product is certificated to meet RoHS torque and force listed in assembly and Directive and Lead-Free produced definition. disassembly procedures to unscrew screws. Using approved critical components only is ! Using Lead-Free solder to well mounted the recommended when the situation to replace parts.
  • Page 2 2. Exploded view diagram with list of items...
  • Page 3 3. Wiring Connectivity Diagram LED Driver Panel 2560*1440 LED Board Touch Board Interface board Power board Joystic Board Power key Board Headphone HDMI1 HDMI2 DP IN AC Input...
  • Page 4 4. Disassembly and Assembly Procedures Necessary repair and test equipment: Lift the rear cover up carefully. Disconnect the 1. Philips-head screwdriver function key cable and LED cable from the 4.1 Disassembly Procedures: connectors of the interface board, and then remove the rear cover.
  • Page 5 4. Disassembly and Assembly Procedures Tear off 2pcs tapes of the power cable. Use a Philips- head screwdriver to remove 6pcs screws for unlocking the middle bezel with the front bezel. Use a se a Philips-head screwdriver to remove 4pcs Philips-head screwdriver to remove 13pcs screws for screws for locking the bracket chassis module with unlocking the middle bezel with the panel module.
  • Page 6 4. Disassembly and Assembly Procedures Turn over the bracket chassis module. Remove the Mylar from the hooks of the bracket Use a Philips-head screwdriver to remove 6pcs screws for unlocking power board and interface board, and then release the panel lamp cable from the hook of the bracket.
  • Page 7 4. Disassembly and Assembly Procedures 4.2 Assembly Procedures: Take 1pcs mylar to insert the hooks of the bracket to Place a bracket chassis base on a protective cover the power board, then locate the panel lamp cushion, then stick 1pcs Silicon sheet on the position cable into the hook as the picture below shown.
  • Page 8 4. Disassembly and Assembly Procedures Take 1pcs front bezel, lift up the panel module and Assemble the middle bezel with power key board and then assemble the front bezel with the panel. touch key board with the front bezel and panel unit. Take 1pcs power key board and 1pcs middle bezel, Adjust the bracket chassis module, and then u se a...
  • Page 9 4. Disassembly and Assembly Procedures Tear off the tape paper on the back of the panel lamp Tear off the adhesive tape paper of the diffusion cable, then connect the panel lamp to the connector sheet, then locate and fix the diffusion sheet with LED of the panel, and then fix the lamp cable with tapes.
  • Page 10 4. Disassembly and Assembly Procedures Use a Philips-head screwdriver to tighten 4pcs screws for locking the rear cover with the assembled unit. Paste 2pcs labels on the specific positions. (No.1~4 screw size=M4x10; Torque=9 0.5kgfxcm) ± Take a stand close to the monitor. Fit the two tabs on the upper part of the stand into the grooves on the back of the monitor, and then lower the stand so that the monitor mounting area snaps onto the stand.
  • Page 11: Troubleshooting Instructions

    LED remains white. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen. Dell 27 Gaming Monitor No DP Cable The display will go into Standby Mode in 4 minutes.
  • Page 12: Built-In Diagnostics

    5. Trouble Shooting Instructions Built-in diagnostics Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and video card. To run the built-in diagnostics: 1.
  • Page 13: Common Problems

    • Cycle power on-off. spots • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: https://www.dell.com/pixelguidelines. Stuck-on Pixels LCD screen has •...
  • Page 14 Experience Safety Related Visible signs of • Do not perform any troubleshooting steps. Issues smoke or sparks • Contact Dell immediately. Intermittent Monitor • Ensure that the video cable connecting the Problems malfunctions on monitor to the computer is connected properly &...
  • Page 15: Product Specific Problems

    5. Trouble Shooting Instructions Product specific problems Problem What you Possible solutions experience Screen image is Image is • Check the Aspect Ratio setting in the Display too small centered on menu OSD. screen, but • Reset the monitor to factory settings. does not fill entire viewing area...

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