Simplified Service Manual–S2721DB/ S2721DSB Version: 01 Date:2021/03/08
Content Index 1. General Safety Instructions ....................................................................................... 3 1.1 SAFETY: General Safety ...................................................................................... 3 1.2 SAFETY: General Power Safety ........................................................................... 5 2. Exploded view diagram with list of items ................................................................. 6 3. Wiring connectivity diagram .......
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 this section, equipment refers to monitors. IMPORTANT NOTICE FOR USE IN HEALTHCARE ENVIRONMENTS: Dell products are not medical devices and are not listed under UL or IEC 60601 (or equivalent).
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 electrical storm. Battery powered devices may be used if all cables have been disconnected. Do not spill food or liquids on your equipment. Before you clean your equipment, disconnect it from the electrical outlet. Clean your device with a soft cloth dampened with water.
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 to ensure that the required voltage and frequency match the available power source.
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S2721DS: 4 5 1 7 8 10 11 2 3 6 9 13 14 12 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description ASSY DECO BTN OSD PCBA CTRL BD MF Panel PCBA SPS BD PCBA I/F BD ASSY SHD SPK*2 ASSY RC ASSY STAND COLUMN ASSY STAND BASE Power cable HDMI cable Q'ty 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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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 placed and the quantity of the monitor; prepare the area for material flow; according to the actual condition plan the disassemble layout 4.
S2720DS: 1. Place the monitor on a soft cloth or cushion. 2. Press and hold the stand release button at the back of the display. Lift the stand assembly up and away from the monitor. S2721D: Philips1. Unlock 2 Stand screws head screwdriver 2. Unlock 4 screws on Torsion of Rear Cover RC screw: 8.5±1.0kgf Stand screw: 4~5kgf 2 S2721DS: 1. Unlock 4 screws on Rear Cover Philipshead screwdriver Torsion of RC screw: 8.5±1.0kgf 1.
1. Pull out SPK wire from I/F BD 4 1. Tear off AL Tape 5 2. Pull out CTRL FFC from I/F BD 3. Pull out backlight wire from SPS BD 1. Unlock 4 Main SHD screws Philipshead screwdriver Torsion of Main SHD screw: 6~7kgf 6 2. Pull out FFC LVDS from the Panel 3.
1. Disassemble Safety Mylar from SPS BD 7 1. Unlock 8 PCBA screws 2. Disassemble I/F BD & SPS BD from Main SHD 3.
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 screwdriver 3) Glove 4) Cleaning cloth 5) ESD protection Item Picture Operation 1. Place Main SHD on the worktable. Tools Philips-head screwdriver 2. Assemble SPS BD into Main SHD Torsion of PCB screw: 6~7kgf 3. Insert FFC LVDS into I/F BD 1 4. Insert SPS BD to I/F BD wire into I/F BD. 5.
1. Insert FFC LVDS into Panel Philips-head screwdriver Torsion of Main SHD screw: 6~7kgf 2 2. Place Main SHD on panel and lock 4 Main SHD screws 1. Insert CTRL FFC into I/F BD and arrange CTRL FFC 2. Insert backlight wire into SPS BD 3. Stick 1 adhesive tape to fix backlight wire and CTRL FFC on Panel 3 4. Stick the AL Tape on Main SHD and Panel 1.
1. Assemble Rear Cover with Mid-Frame 5 2. Follow the sequence to press on Rear Cover to make it be assembled with Mid-Frame tightly S2721DS: 1. Lock 4 screws on Rear Cover Philips-head screwdriver Torsion of RC screw: 8.5±1.0kgf 6 S2721D: 1. Lock 4 screws on Rear Cover Philips-head screwdriver 2. Lock 2 Stand screws Torsion of RC screw: 8.5±1.
S2721D: S2721D: To assemble Stand and VESA screw cover 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 assembly 3. Close the screw handle. 4. Align and insert the stand assembly bracket into the groove on the back of the display until it locks in place. 5. Install the VESA screw cover. 7 S2721DS: S2721DS: To assemble Stand with Monitor 1.
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