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Standby In LCD TV Repaired

By on July 16, 2015
how to repair lcd tv










lcd tv repair

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.

lcd tv repairing

Once the back cover is removed, the first thing I check/scan is the mainboard.

lcd tv mainboard repair

I saw cockroach eggs juice around the main IC Chip.

I had to clean and wash it using PCB chemical.

board pcb cleaning

After that I reflowed the main IC chip area using my SMD Rework station gun set to 342 Degree Celcius.

smd rework station

Once done and when the power was turned On, the TV came back to life.

lcd tv repaired

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:




  1. Yogesh Panchal

    July 16, 2015 at 1:39 pm

    Congratulations! you solved the problem quickly.

  2. 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!

  3. Gerald Millward

    July 16, 2015 at 3:35 pm

    What prompted you to reflow the chip and why 342 degs C?

  4. 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?

  5. 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

  6. 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.

  7. Corriete

    July 16, 2015 at 9:55 pm

    good work the fact you destroyed the pest camp.

  8. 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

  9. uncleseng

    July 18, 2015 at 1:04 pm

    How old was the LCD set?

  10. Tesfaye kebede

    July 18, 2015 at 6:23 pm

    thank you it is a nice hint for rapairs


    July 19, 2015 at 11:12 am

    interesting and helpful. thank you.

  12. Robert Calk

    July 19, 2015 at 2:21 pm

    Good job spotting the bug and getting the TV repaired, Suranga.

  13. Bulent Nur

    July 20, 2015 at 11:28 pm

    Good work!

  14. reza

    July 27, 2015 at 12:59 pm

    very good


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