Dell U2419H Monitor Disassembly Instructions
1. Disassembly Procedures
S1: Open the carton
Open the carton with a proper tool.
Image shows a sealed carton, presumably for the monitor.S2: Take out accessories
Take out all accessories including QSG (Quick Setup Guide), Delta-e paper, user's manual, DP cable, USB cable, power cable, and other packing materials from the carton. (Note: This depends on whether users are returning the accessories).
Image displays various accessories: QSG, Delta-e paper, user's manual, DP cable, USB cable, and power cable, along with packing materials.S3: Take out base, stand, and monitor
Take out the base, Paper-Top, and stand from the carton, then take out the monitor.
Image shows the monitor base, stand, and the monitor itself, packed within protective materials and cartons.S4: Place monitor on cushion
Take out the monitor from its EPE-bag and place the LCD monitor on a protective cushion.
Image shows the LCD monitor placed on a protective cushion, likely after being removed from its packaging.S5: Remove rear cover screws
Use a Philips-head screwdriver to remove four screws for unlocking mechanisms.
(No.1~4 screw size=M4x8; Torque=10~11kgfxcm)
Image of the monitor's rear panel, with four screw locations (numbered [1]-[4]) indicated for removal.S6: Release rear cover
Wedge your fingers between the rear cover and the middle bezel on the corner of the top side of the monitor to release the rear cover. Then, use one hand to press the middle bezel, and the other hand to pull up carefully the rear cover in order of arrow preference for unlocking mechanisms of the rear cover.
Image illustrating how to wedge fingers between the rear cover and middle bezel to release the rear cover, and how to press the middle bezel while pulling the cover up. Arrows indicate the direction of release.S7: Lift rear cover and disconnect cable
Lift the rear cover up carefully. Disconnect the USB FFC cable from the connector of the interface board, and then remove the rear cover.
Image shows the rear cover being carefully lifted, with a USB FFC cable connector highlighted for disconnection from the interface board.S7 (Page 2): Remove USB board unit
Use a Philips-head screwdriver to remove one screw for unlocking the USB board unit, then release the USB board unit and put it aside.
(No.1 screw size=M3x6, Torque=4±0.5kgfxcm)
Image shows a screw (numbered [1]) securing a USB board unit, which is then released and set aside.S8: Remove aluminium foils
Tear off 3pcs aluminium foils for unfixing the panel lamp cable.
Image shows three pieces of aluminium foil being peeled off to unfix a panel lamp cable.S9: Release function key cable
Use a proper tool to release the function key cable from the connector, then pull the function key cable high for releasing the function key cable as the picture below shown.
Image depicts using a tool to release a function key cable from its connector, then pulling it upwards.S10: Remove front bezel screws
Use a Philips-head screwdriver to remove 5pcs screws for unlocking the front bezel with the assembled unit.
(No.1~5 screw size=M2x2.7, Torque=3±0.5kgfxcm)
Image of the assembled unit showing five screw locations (numbered [1]-[5]) on the front bezel.S11: Detach front bezel
Use a Philips-head screwdriver to remove 2pcs screws (left and right) for unlocking the front bezel with the panel module, then disassemble the front bezel with the unit and put it aside.
(No.1~2 Screw size= M3x0.5x4, Torque=3~4kgfxcm)
Image shows two screw locations (numbered [1]-[2]) on the front bezel, and the front bezel being detached from the panel module.S12 (Page 2): Secure function key board
Tear off the mylar tape on the function key board, then use a Philips-head screwdriver to tighten 3pcs screws for locking the function key board with the front bezel.
(No.1~3 Screw size= M2x2.4, Torque=1±0.2kgfxcm)
Image shows mylar tape on the function key board and three screw locations (numbered [1]-[3]) for securing it to the front bezel.S12 (Page 3): Unplug panel lamp cables
Unplug the panel lamp cables from the connectors of the panel module and power board.
Image shows panel lamp cables being unplugged from connectors on the panel module and power board.S13: Remove bracket chassis screws
Use a Philips-head screwdriver to remove 4pcs screws for locking the bracket chassis module with the panel.
(No.1~4 Screw size= M3x0.5x3, Torque=5~6kgfxcm)
Image of the bracket chassis module with four screw locations (numbered [1]-[4]) indicated for removal from the panel.S14: Lift bracket chassis and disconnect cable
Lift up the bracket chassis, and disconnect the LVDS cable from the connector of the panel module, then put the bracket chassis on a protective cushion.
Image shows the bracket chassis being lifted, and the LVDS cable being disconnected from the panel module connector.S15: Remove AC power outlet screws
Turn over the bracket chassis module. Remove the Mylar from the hooks of the bracket, and then use a Philips-head screwdriver to remove two screws for unlocking AC power outlet.
(No.1~2 screw size=M3x10, Torque=6±0.5kgfxcm)
Image shows the bracket chassis module turned over, with two screw locations (numbered [1]-[2]) for unlocking the AC power outlet.S16: Remove power and interface board screws
Use a Philips-head screwdriver to remove 6pcs screws for unlocking power board and interface board.
(No.1 screw size=M4x8, Torque=6±0.5kgfxcm; No.2~6 screw size=M3x7.5, Torque=6±0.5kgfxcm)
Image shows six screw locations (numbered [1]-[6]) for unlocking the power board and interface board.S17: Remove circuit boards
Remove the circuit boards from the bracket chassis module carefully, and then disconnect all of the cables.
Image shows circuit boards being carefully removed from the bracket chassis module, with cables disconnected.S18: Remove electrolyte capacitors
Remove electrolyte capacitors (red mark) from printed circuit boards.
Image of a printed circuit board (PCB) with electrolyte capacitors (marked in red) identified for removal.S18-1: Cut glue
Cut the glue between bulk cap. and PCB with a knife.
Image shows a knife being used to cut the glue between a bulk capacitor and the PCB.S18-2: Ensure cutting path
Ensure cutting path within the glue, don't touch bulk cap. or PCB.
Image emphasizes ensuring the cutting path stays within the glue, avoiding contact with the bulk capacitor or PCB.S18-3: Cut into capacitor bottom
Cut into the bottom of bulk cap. and pull it up carefully.
Image shows cutting into the bottom of a bulk capacitor and preparing to pull it up.S18-4: Desolder capacitor
Take out bulk cap. pin solder with soldering iron and absorber.
Image shows a soldering iron and absorber being used to desolder the pins of a bulk capacitor for removal.S18-5: Lift capacitor
Lift the bulk cap. up and away from the PCB.
Image shows a hand lifting the bulk capacitor up and away from the PCB.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 Council Directive 75/442/EEC.
| Component/Substance | Information |
|---|---|
| Capacitors / condensers (containing PCB/PCT) | No used |
| Mercury containing components | No used |
| Batteries | No used |
| Printed circuit boards (with a surface greater than 10 square cm) | Product has printed circuit boards (with a surface greater than 10 square cm) |
| Component contain toner, ink and liquids | No used |
| Plastic containing BFR | No used |
| Component and waste contain asbestos | No used |
| CRT | No used |
| Component contain CFC, HCFC, HFC and HC | No used |
| Gas discharge lamps | No used |
| LCD display > 100 cm2 | Product has an LCD greater than 100 cm2 |
| External electric cable | Product has external cables |
| Component contain refractory ceramic fibers | No used |
| Component contain radio-active substances | No used |
| Electrolyte capacitors (height > 25mm, diameter > 25mm) | Product has electrolyte capacitors (height > 25mm, diameter > 25mm) |
3. Tools Required
List the type and size of the tools that would typically be used to disassemble the product to a point where components and materials requiring selective treatment can be removed.
- Screwdriver (Phillip head) #1
- Screwdriver (Phillip head) #2
- Penknife
- Soldering iron and absorber
