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Dell S2721QS Monitor Teardown Instructions

Summary

The Dell S2721QSB monitor disassembly manual provides detailed teardown procedures for service and repair. It covers step-by-step instructions for removing the stand, rear cover, speakers, middle frame, control board, interface board, power supply board, and electrolyte capacitors. The manual specifies screw torque values and safety precautions including proper handling of bulk capacitors. It is designed for certified monitor repair technicians and service centers.

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Page 1 Text Content

1 DELL S2721QSB

1. Disassembly Procedures

Tear off all adhesive tapes from

S1 Turn off the monitor. S5

backlight wire and SPK wire

Place the monitor on a soft cloth or S2 cushion.

Press and hold the stand release button at the back of the display.

Lift the stand assembly up and away from the monitor.

Unlock 6 SPK screws S6

S3 Unlock 4 screws on Rear Cover

Pull out SPK wire from I/F BD

Disassemble SPK from Middle Frame

(Screw Torque: 8.5±1.0kgf)

Follow the sequence to disassemble S4 Rear Cover from the monitor

(Screw Torque: 4~6kgf)

Page Summary Contents For Dell S2721QS Monitor Teardown Instructions

Page 1 1 DELL S2721QSB 1. Disassembly Procedures Tear off all adhesive tapes from S1 Turn off the monitor. S5 backlight wire and SPK wire Place the monitor on a soft cloth or S2 cushion. Press and hold the s...
Page 2 2 DELL S2721QSB Pull out CTRL FFC from I/F BD Pull out FFC e DP from Panel to take off S7 S10 Main SHD from Panel Pull out backlight wire from SPS BD and Panel Unlock 4 Location screws Tear off the ye...
Page 3 3 DELL S2721QSB Disassemble CTRL BD from OSD BTN Unlock 8 PCBA screws S15 S18 Disassemble I/F BD & SPS BD from Main SHD Disassemble Safety Mylar from SPS BD (Screw Torque: 6~7kgf) Pull out FFC e D...
Page 4 4 DELL S2721QSB Remove electrolyte capacitors (red mark) from printed circuit boards S20 S20-1 Cut the glue between bulk cap. and PCB with a knife
Page 5 5 DELL S2721QSB S20-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB S20-3 Take out bulk cap. pin solder with soldering iron and absorber S20-4 Lift the bulk cap. up and away from t...
Page 6 6 DELL S2721QSB 2. Product material information The following substances, preparations, or components should be disposed of or recovered separately from other WEEE in compliance with Article 4 of EU C...

Manual Details

Brand Dell
Pages 6
File Size 3.04 MB
Published June 24, 2026
8 views

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Frequently Asked Questions

How do I disassemble the stand from the monitor?

Turn off the monitor, press and hold the stand release button at the back, then lift the assembly up and away.

What tools are required to disassemble the device?

Tools required include a screwdriver, scraper bar, penknife, and a soldering iron with absorber.

How should electrolyte capacitors be removed?

Cut the glue between the bulk capacitor and PCB with a knife, then solder and remove the pin with an iron.

Which components are classified as hazardous waste?

Mercury-containing components, printed circuit boards, and electrolyte capacitors require separate disposal.