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DELL SE2416H
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Topic: DELL SE2416H (Read 1320 times)
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Jane
Frequent Contributor
Posts: 391
DELL SE2416H
«
on:
April 06, 2022, 05:53:23 pm »
Hello ,
monitor DELL SE2416H
What do you think the problem, like that at the video below, is caused by?
The monitor is only pluged in to mains ( no other input) and turned on.
Anyone experienced a such problem?
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bob91343
Super Contributor
Posts: 2675
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Re: DELL SE2416H
«
Reply #1 on:
April 07, 2022, 05:21:26 am »
Some kind of oscillation, maybe due to loose mounting screws on a circuit board.
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Rasz
Super Contributor
Posts: 2617
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Re: DELL SE2416H
«
Reply #2 on:
April 08, 2022, 08:44:52 am »
glass-tcon connecting ribbon or internal glass defect, very low probability of tcon and zero probability of scaler board/input defect
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Who logs in to gdm? Not I, said the duck.
My fireplace is on fire, but in all the wrong places.
Jane
Frequent Contributor
Posts: 391
Re: DELL SE2416H
«
Reply #3 on:
April 12, 2022, 10:14:00 am »
The monitor works from the very beginning properly but only for one or two seconds only.
On T-CON there is an very hot (shorted?) IC marked as SM4047 .
Anyone know what kind of IC is that?
Thanks
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Rasz
Super Contributor
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Re: DELL SE2416H
«
Reply #4 on:
April 12, 2022, 11:14:59 am »
same defect
https://www.reddit.com/r/AskElectronics/comments/na3idv/trying_to_fix_my_monitor_asus_vc239h_need_help/
SM4047 is a DC converter for multiple supplies running the panel, they are also called Gamma correction buffers, VCOM generators etc.
example pinout for similar SM4053 part
https://www.pinterest.com/pin/471541023488781596/
what on the tcon board
Getting hot means something is shorted, most likely inside the panel or chip on flex buffers. Replacing this chip 99.9% wont fix the issue, replacing whole panel or one of the flexes by specialized shop will, but this is uneconomical outside of Asia (India-China).
There are also hackers (india/russia/china, its a true dark art) able to figure out which line is blown and bypassing it manually - this usually results in slightly darker picture with slighly visible gamma issues, but otherwise still working monitor. Example:
TLDR: buy a new monitor.
«
Last Edit: April 12, 2022, 11:20:43 am by Rasz
»
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My fireplace is on fire, but in all the wrong places.
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