Dell E2221HN Monitor Teardown Instructions

Chapter 8-TEARDOWN INSTRUCTION

S1

1.  Remove Rear Cover Screw and Stand Screws
   a. Remove screws “1~2” on rear cover with electric screwdriver
   b. Remove stand screws “3” and “4”. Torque: 12.0 +/- 0.5Kgf/cm
   S2

2. Remove Front Cover:
   a. Panel side up, remove the front panel with both hands in a sequence of “1->2->3”, then “1->4->5->6”.
   **S3**

3. Remove Rear Cover:
   a. Turn monitor to rear side up, remove the rear cover.
   
   **S4**

4. `Remove Aluminium Foil and Acetate Cloth Tape a. Remove aluminium tape in “1~3” order b. Remove acetate cloth tape marked with “4” ![Dell E2221HN Monitor Teardown -S4](https://manuals.plus/wp- content/uploads/2021/11/Dell-E2221HN-Monitor-Teardown-S4.jpg) **S5`**

5. Remove Light Bar and Keypad Cable:
   a. Remove light bar “1” (grasp on Pin then pull upwards to remove)
   b. Remove KP cable “2” (lift cover before removing KP cable)
   **S6**

6. Remove FFC
   a. Pinch on clips on the sides, and remove FFC
   b. Remove assembled chassis from the panel
   **S7**

7. Remove PCBA 1:a. Remove mylar (squared in red in the upper picture)
   b. Use electric screwdriver to remove grounding screw “1”, then locking screws marked “2~5”. Screwdriver torque: 5.5±0.5 kg/cm
   **S8**

8.  Remove PCBA 2:
   a. Remove 2pcs hex head bolt with electric screwdriver
   b. Remove IF board and Power board
   c. Separate IF board and Powerboard
   **S9**

9. Separate Front Cover from Panel:
   a. Tear off Keypad cable from Panel. Taped on “1, 2, 3”.
   b. Turn the monitor to the front view and remove the front cover.
   **S10**

10. Remote Keypad:
    a. Remove screws “1, 2, 3” with electric screwdriver. Screwdriver torque: 1.0±0.1 kgf/cm
    **S11**
    a. Remove electrolyte capacitor >25mm height (squared in red) from printed circuit boards.
    b. Cut the glue between the bulk cap and PCBA with knife ­ ensure cutting path within the glue, don’t touch bulk cap and PCBA.
    **S12**
    a. Take out the capacitor pin solder with a soldering iron.
    b. Lift the bulk capacitor away from the power board.
    

11. Product Material Information
    The following substances, preparation, or components should be disposed of or recovered separately from other WEEE in compliance with Article 4 of EU Council Directive 75/422/EEC.

has printed circuit boards (with a surface greater than 10 square cm)
The component contains toner, ink and liquids| Not used
Plastic containing BFR|
Component and waste contain asbestos| Not used
CRT| Not used
Component contain CFC, HCFC, HGC and HC| Not used
Gas discharge lamps| Not use
LCD display > 100 cm2| Product LCD greater than 100cm2
External electric cable| The product has external cables
The component contains refractory ceramic fibres| Not used
The component contains radioactive substances| Not used
Electrolyte capacitors (height > 25nun, diameter >25mm)| Product has electrolyte capacitors (height > 25mm)
2. 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.
Tool Description:
– Screwdriver (Philip head with 5 mm & 3 mm)
– Screwdriver (Hexagonal to remove VGA connectivity)
– Soldering iron
– Knife

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