Saved One More LG Monitor Model W1643C From Dump
Look at the pathetic condition of this Monitor, but see its performance! Would anyone feel like throwing this to the scrap? I took up the job of replacing the polarizer sheet on this for which I dismantled the Monitor completely and did a thorough cleaning. Then using thinner and a sharp blade removed the damaged sheet slowly working my way in and out by repeated scraping and cleaning.
In between I sprayed IPA and used tissue papers to clean the surface. Though it might look very simple when you put in words, the exercise took me time from 1.45AM to 6 AM! After having successfully completed another monitor of similar type, I could not sleep until I finished this one too and that kept me awake and working. Look at the result of this thorough cleaning:
Then connected the panel back, applied signal and powered it up to select the angle of the sheet and marking it for cutting. The method is to keep the film on top and tilting it to the sides until a good and clear contrast of colors is seen.
Then keep something heavy enough to hold it in place but without adding too much weight causing breakage of panel.
The above picture is that of the marking done on the sheet. Then kept the cut sheet in perfect alignment of the panel, and first peeled off the protection sheet and kept one thin portion at one edge of the panel and slowly pressed it down from centre to sideways with my finger so as to have a good fix without bubbles.
This is a very precise and intricate work and sometimes we may have to peel small portions and stick it again to avoid air bubbles. The sticking has to be done progressively by releasing the sheet from its protective sheet. After finishing that, I fixed the panel back to the monitor and applied signal and power to see the following result:
Then allowed it to be on for sufficient time before fixing the covers.
Mission accomplished with vigor and enthusiasm again deriving utmost satisfaction that found entry into the collection bag.
This article was prepared for you by Parasuraman Subramanian from India. He is 74 years old and has more than 30 years’ experience in handling antique equipment like Valve Radio, Amps, Reel Tape Recorders and currently studying latest tech-classes conducted by Kerala State Electronics Technicians’ Association. He has done graduation in BBA degree, private diploma in Radio Engineering and retired as MD of a USA company. Presently working as Consultant to Hospital and other institutions.
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You may check on his previous article on TOP 265VG Found Failed In DELL Computer Monitor Model E1715SC
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Albert van Bemmelen
September 7, 2025 at 5:37 pm
Never have seen such strange monitor problems. And I probably never will try to fix these sort of very time-consuming screen failures. Life in my opinion is too precious to fix such very badly damaged monitors!
Parasuraman S
September 7, 2025 at 8:05 pm
Men vary in their taste and thrill! There are many who love to live bag picking! There are others whose hobbies are unimaginably bizarre! Life is like that! I get a thrill in doing these sort of odd jobs which others refuse to take up! Many thanks for your expert comments, dear Albert! I like and respect your openness!
ANTHONY PATERSON
September 8, 2025 at 1:07 am
The thrill of fixing is the driver for such efforts along with great skill to accomplish the finished success.
A veritable example of tenacity and a never-say-die attitude. The local hospital is indeed fortunate to have an engineering surgeon!
Parasuraman S
September 8, 2025 at 12:41 pm
Many thanks for your wonderful encouraging comments!
Andy Shiekh
September 7, 2025 at 6:13 pm
Amazing work
Parasuraman S
September 7, 2025 at 11:02 pm
Thanks!
Waleed Rishmawi
September 7, 2025 at 9:23 pm
I have not had the chance to do such jobs because I always replace the whole panel…very interesting repair job. Have a blessed day
Parasuraman S
September 7, 2025 at 11:03 pm
Yes, its a very interesting job! Thanks, dear friend!
Joe
September 7, 2025 at 11:28 pm
Nice Job... I'd like to know where you sourced a replacement polarizing sheet.
Parasuraman S
September 8, 2025 at 12:42 pm
It is available for large screen sizes of 32" in the Electronic Spare parts shops. We need to cut it to suitable size after checking the angle. Many thanks!
Andy Shiekh
September 8, 2025 at 12:01 am
For next time, I can ask how such a screen without polarizer looks when viewed through polaroid sunglasses... I have always wondered if it is usable.
Parasuraman S
September 8, 2025 at 12:44 pm
I do not have polarizer sun glasses. It could be viewed, I presume. Many thanks!
Mark J
September 8, 2025 at 12:12 am
Parasuraman great job. I like that you take on these odd jobs and save things from the dump. I am the same way but not as good as you are at it. Thank you again for sharing.
Parasuraman S
September 8, 2025 at 12:44 pm
Many thanks, dear Mark!
Imoudu O
September 8, 2025 at 4:28 am
Hh..mm,at your age for you to be able to stay awake throughout night to get repair work done is incredibly amazing and uncommon, I would say you got extra blessing from the Lord, hope wife is not protesting..Lol Thanks for sharing.
Parasuraman S
September 8, 2025 at 12:46 pm
Ha! Ha! I have become immune to wife protests! Even the last couple of days, I was sleeping only for just 2 to 4 hours because of an interesting work on an LCD TV. Ha! Ha!
Roy Hill
September 8, 2025 at 10:28 am
In America, it would be in the recycling bin.
Parasuraman S
September 8, 2025 at 3:45 pm
To tell you frankly I have repaired a few sets brought by known people from US stating that they did not want to throw away and I have succeeded to restore them. Moreover, I learnt from them that the service costs are very high in US. Such board level repair work reduces e-waste, which is a perennial problem worldwide! Many thanks for your comments.
Yogesh Panchal
September 10, 2025 at 5:32 pm
Good Job! Sir,
Removing the polarizer requires a lot of patience and skill in handling the scraper or blade. Otherwise it can scratch the screen at any time.
Parasuraman S
September 10, 2025 at 10:43 pm
Yes, very intricate work. But practice can make us perfect! Many thanks, Yogesh Bhai!
Muykit
September 11, 2025 at 5:05 pm
I'm sure I dont like some of the negative comments given as replies that reflect a personal negativety. Engineer Parasuraman, continue letting us read about even 'looked-down-upon' repairs. My point is, their is always something crucial to learn in any given repair article for someone out there. My humble request is, keep on soldiering on, like never before.
Parasuraman S
September 12, 2025 at 7:13 pm
Many thanks!
Muykit
September 12, 2025 at 12:13 pm
sorry if my earlier own sent email never went through. Could someone be kind enough to spare us the agony of going against our lovely spirit of technicians brotherhood. I find it rather distasteful to read comments inclined towards criticism about your article that otherwise had the best of intentions. Intentions of which I and many more of my calibre have all along immeasurably benefited from.
Parasuraman S
September 12, 2025 at 7:15 pm
Many thanks!