Side Story: I Tried Repairing a DELL S2422HG Curved Monitor
Side Story: DELL S2422HG Curved Monitor Repair Notes
Symptoms
The bezel on the top of the monitor is peeling off
Backlight light is leaking from the gap (the white light in the top image)
Video display and LCD display are normal
It was easy to determine that this was not a failure of the LCD panel itself, but a peeling of the adhesive part.
There was no information online, and I thought about just putting up with it, but I remembered the passion of a repairman and decided to record my attempt, intending to discard it if it failed.
When I asked AI,
it told me that if I repaired it myself, I would get an electric shock or break the LCD, so I got cold feet.
However, since repairing it doesn't involve messing with the circuit board, I decided to proceed at my own risk, thinking it would be lucky if it got fixed.
Tools Used
Precision Phillips screwdriver
Adhesive
Clamps (200 yen at Daiso) x 3
Plastic spatula (for opening the back cover. I used a large one for cars this time)
Repair Procedure
1. Remove the back cover
Since the back cover is fixed with tabs, remove the surrounding tabs one by one.
Start from the top left of the monitor and go around clockwise.
Be careful, as forcing it may break the tabs.
There is a flexible cable attached, so check the inside once you have opened it to some extent.
Remove the cover carefully.
* After bonding, insert it in the same way as the slightly smaller flexible cable next to it.
2. Remove the screws
Once the back cover is removed, remove all the small screws around the perimeter. There are 13 of them.
3. Glue the peeling part
Apply adhesive to the peeling top bonding surface.
Since there is original black double-sided tape, apply it thinly and firmly on top of that.
Use the adhesive mentioned above. It is easy to apply and seems to be commonly used for precision equipment.
Apply it thinly and evenly, as applying too much may cause it to spill over onto the LCD side.
4. Clamping and Fixing
Secure it with clamps. (200 yen each x 3 from Daiso)
Be careful not to tighten them too much, or the screen might crack.
This time, just to be safe, I left it for about 5 hours to ensure it was fully cured.
5. Reassembly
After checking the adhesion, reassemble it by following the disassembly steps in reverse.
Three days have passed, and there is no recurrence so far. I will continue to monitor it.
Repair Results
Bezel separation: Resolved
Light bleed: Resolved
Video display: Normal
Operation check: No issues
Precautions
Disassembly will void the manufacturer's warranty.
The LCD panel is extremely fragile, so do not apply too much force.
Be careful not to let the adhesive get onto the LCD surface.
Perform this work at your own risk.
Repair Notes
The issue this time was not an LCD failure, but rather adhesive peeling, which is common in curved monitors. I confirmed that re-securing it with adhesive fixed the problem. If there are no display defects, it is possible that similar symptoms can be repaired in the same way.
I couldn't find any information online, so I decided to write this in the hope that it might be helpful to someone.