Backlight Issues In HAIER LE39B900 And SHARP LC32M300M Solved
As mentioned by me in my previous articles, I gain more experiences when I visit my friend’s shop, which is focusing more on panel bonding cases. The following two cases are out of such visits.
- HAIER LE39B900 :- Complaint reported : No back light
After opening the set and inspection, I found that three capacitors of values 470/25 and 330/25 were found burst!
I replaced all the three capacitors with higher voltage caps as the exact replacements were not available. I had to bend the caps to accommodate these within the space available.
The set worked very well after replacement of these three caps and I closed the back cover and left it on for testing.
- SHARP LC32M300M:- Complaint reported : Flickering backlight
On opening the back cover, one cap in the power supply was found bulged.
Once I replaced this cap, the set worked perfectly well.
Both works finished very easily, without any compromise in adding satisfactions to the collection bag.
By the way, I was intrigued by many simple cases that came to the shop, whereas I seem to be a center of attraction in getting mainly very complicated cases! (LOL)
This article was prepared for you by Parasuraman Subramanian from India. He is 72 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 Rusted Bearing Found In CREATIONSPACE Precision Screwdriver JPJ1802A
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Andrew F. Ali
March 11, 2023 at 9:19 am
I agree. I too seem to attract complicated repairs. Good work.
Parasuraman S
March 11, 2023 at 11:04 am
Many thanks for your encouraging words!
ANIL KUMAR V K
March 11, 2023 at 11:53 am
Excellent work, thanks for sharing⁸
Parasuraman S
March 11, 2023 at 2:32 pm
Many thanks for your encouraging words!
Waleed Rishmawi
March 11, 2023 at 3:19 pm
a good repair is not just the hard ones but also the easy ones. good job my friend and keep up the good work. have a blessed day
Parasuraman S
March 11, 2023 at 8:57 pm
Many thanks for your encouraging words, my dear friend!
Albert van Bemmelen
March 11, 2023 at 4:09 pm
The SHARP LC32M300M with flickering backlight looks very much like the issue with another 32 inch tv I had found. Which also was easily fixed by only replacing one bulged cap in a Samsung UE32EH5000 tv. Good to see that they apparently start making easily fixable models now! (lol)
Parasuraman S
March 11, 2023 at 9:00 pm
Yes, I have seen 'pregnant' capacitors in many of these circuits. The green caps are better to be replaced even in a new board! They are of poor quality. Many thanks for your observing comments!
Tito Kanshulu
March 12, 2023 at 6:41 pm
An exciting journey of repairs with you Mr Parasuraman. Thanks for sharing this one too
Parasuraman S
March 13, 2023 at 5:24 pm
Many thanks for your encouraging words!
Yogesh Panchal
March 17, 2023 at 4:10 pm
Good Fix! sir
Parasuraman S
March 17, 2023 at 11:34 pm
Many thanks!