Standby In LCD TV Repaired
This 32” BG LCD TV came in for repair with the complaint of Red LED standby problem. It can’t be turned On with the remote control or from the main Menu push button.
Once the back cover is removed, the first thing I check/scan is the mainboard.
I saw cockroach eggs juice around the main IC Chip.
I had to clean and wash it using PCB chemical.
After that I reflowed the main IC chip area using my SMD Rework station gun set to 342 Degree Celcius.
Once done and when the power was turned On, the TV came back to life.
This article was prepared for you by Suranga Bandara who owns an Electronics shop in Anuradapura, Sri Lanka.
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Note: You may check out his previous repair article in the below link:
https://www.jestineyong.com/vikyno-20-lcd-tv-repaired/
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Yogesh Panchal
July 16, 2015 at 1:39 pm
Congratulations! you solved the problem quickly.
Andy Thomas
July 16, 2015 at 3:26 pm
People forget that mother nature can cause electrical problems. Cockroaches like to find a warm bed for the night and choose to set up home.
Well done on fixing this cockroach short!
Gerald Millward
July 16, 2015 at 3:35 pm
What prompted you to reflow the chip and why 342 degs C?
Albert
July 16, 2015 at 4:16 pm
That sort of proves the theory that the Chicken came after the Egg! Thank you for this repair fix. What did you Use for the PCB cleaning Fluid?
Zed Pato
July 16, 2015 at 5:34 pm
quick repair!!!! have you not check the secondary output my friend? before you decide to hot air the ic? thanks for info
Humberto
July 16, 2015 at 8:04 pm
Well done.
In my country the cockroaches are very common inside the appliances, but worse are the mice, they leave you the pcb useless for a life.
On the other hand, is almost imposible in my country to get PCB chemical, therefore we use to scrub the PCB with liquid detergent and rinse it with abundant running water. Later it's dried with a sunbath.
Corriete
July 16, 2015 at 9:55 pm
good work sir.love the fact you destroyed the pest camp.
andrew kasiwake
July 17, 2015 at 1:06 pm
thank you. do you have any free basic info to start learning how daignosis a problem on electronic card if any pliz inbox me
uncleseng
July 18, 2015 at 1:04 pm
How old was the LCD set?
Tesfaye kebede
July 18, 2015 at 6:23 pm
thank you it is a nice hint for rapairs
RAFAEL ROMO
July 19, 2015 at 11:12 am
interesting and helpful. thank you.
Robert Calk
July 19, 2015 at 2:21 pm
Good job spotting the bug and getting the TV repaired, Suranga.
Bulent Nur
July 20, 2015 at 11:28 pm
Good work!
reza
July 27, 2015 at 12:59 pm
hi
very good
thanks.