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Dell S2721QS Monitor Simplified Service Manual

Summary

The Simplified Service Manual for Dell S2721QB/S2721QSB monitors provides technical repair documentation. It covers general safety instructions, exploded view diagrams, wiring connectivity, disassembly and assembly procedures, and troubleshooting instructions. Target users are certified monitor repair technicians and service centers handling Dell display repairs.

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Page 1 Text Content

Simplified Service Manual–S2721QB/S2721QSB

Version: 01

Date:2021/03/08

Page Summary Contents For Dell S2721QS Monitor Simplified Service Manual

Page 1 Simplified Service Manual–S2721QB/S2721QSB Version: 01 Date:2021/03/08
Page 2 Content Index 1. General Safety Instructions ....................................................................................... 3 1.1 SAFETY: General Safety .........................................
Page 3 1. General Safety Instructions Use the following safety guidelines to help ensure your own personal safety and to help protect your equipment and working environment from potential damage. NOTE: In th...
Page 4 When operating your equipment:  Do not use your equipment in a wet environment, for example, near a bath tub, sink, or swimming pool or in a wet basement.  Do not use AC powered equipment during an ...
Page 5 1.2 SAFETY: General Power Safety Observe the following guidelines when connecting your equipment to a power source:  Check the voltage rating before you connect the equipment to an electrical outlet ...
Page 6 2. Exploded view diagram with list of items Item Description Q'ty 1 ASSY DECO 1 2 BTN OSD 1 3 PCBA CTRL BD 1 4 MF 1 5 Panel 1 6 PCBA SPS BD 1 7 PCBA IF BD 1 8 ASSY SHD 1 9 SPK*2 1 10 ASSY RC 1 11 ASSY...
Page 7 S2721QS: Item Description Q'ty 1 ASSY DECO 1 2 BTN OSD 1 3 PCBA CTRL BD 1 4 MF 1 5 Panel 1 6 PCBA SPS BD 1 7 PCBA I/F BD 1 8 ASSY SHD 1 9 SPK*2 1 10 ASSY RC 1 11 ASSY STAND COLUMNB 1 12 ASSY STAND BAS...
Page 8 3. Wiring connectivity diagram FFC 1 FFC 1 Wire 1
Page 9 4. Disassembly and Assembly Procedures 4.1 Disassembly SOP Preparation before disassemble 1. Clean the room for disassemble 2. Identify the area for monitor 3. Check the position that the monitors be ...
Page 10 S2720QS: 1. Place the monitor on a soft cloth or cushion 2. Press and hold the stand release button at the back of the display 3. Lift the stand assembly up and away from the monitor S2721Q: Philips- ...
Page 11 1. Tear off the tape from SPK wire 2. Pull out SPK wire from I/F BD 1. Pull out CTRL FFC Philips- from I/F BD head screwdriver Torsion of location screw: 6~7kgf 2. Pull out backlight wire from SPS BD ...
Page 12 1. Disassemble Safety Philips- Mylar from SPS BD head screwdriver Torsion of PCB screw: 6~7kgf 2. Unlock 8 PCBA screws 3. Disassemble I/F BD & SPS BD from Main SHD 4. Pull out FFC e DP from the I/...
Page 13 4.2 Assembly SOP Preparation before assemble 1. Clean the room for work 2. Identify the area for material 3. Prepare the implement, equipment, material as bellow: 1) Working table 2) Philips-head scre...
Page 14 1. Insert FFC e DP into Panel Philips-head and stick a yellow tape to fix it screwdriver Torsion of location screw: 6~7kgf 2. Place Main SHD on panel and lock 1 location screw 1. Insert backlight wire...
Page 15 1. Assemble Rear Cover with Mid-Frame 2. Follow the sequence to press on Rear Cover to make it be assembled with Mid-Frame tightly For S2721QS: Philips-head 1. Lock 4 screws on Rear Cover screwdriver ...
Page 16 To attach the monitor stand: 1. Align and place the stand riser on the stand base 2. Open the screw handle at the bottom of the stand base and turn it clockwise to secure the stand assembly 3. Close t...
Page 17 S2721QS: S2721QS: To assemble Stand with Monitor 1. Align and place the stand riser on the stand base 2. Open the screw handle at the bottom of the stand base and turn it clockwise to secure the stand...
Page 18 5. Trouble shooting instructions

Manual Details

Brand Dell
Pages 24
File Size 2.75 MB
Published June 25, 2026
2 views

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Frequently Asked Questions

Can I use the monitor in a healthcare environment?

No. Dell products are not medical devices and must not be used within 6 feet of a patient.

How should I position the equipment for proper ventilation?

Place it on a hard, level surface, ensuring at least 10.2 cm (4 in) clearance on all vented sides.

What if my monitor isn't working normally?

Unplug the equipment immediately and contact an authorized dealer or service center.

How should I clean the display screen?

Apply water to a soft, clean cloth, then stroke across the display in one direction from top to bottom. Keep it dry.