Toshiba 32P2400ZE LED TV no picture Blue Screen Fault

I was on customer place on some work & got a call from my house very familiar voice (My Wife). Stating our TV is not working & bring the required parts when you are way back to the home. I exclaim what parts? (Normally when I am out, I receive list of order from my superior to get some grocery when way back to the home……Ha… Ha… Ha). I reached home, on arrival I got offer of a tea …. (So that I do not waste the time in any other activity & straight tackle the problem as stated).
Till the time tea is arrived I turned On the TV & found no picture Blue Screen Fault, Sound OK.
So I prepared the tools for the operation & start the inspection, Checked Connection & wires between TV & set top box seems Ok.
Now time for Inspection from inside the TV. Removed back Panel Bottom Part.
Found Logic Board Full of dust.so first of all cleaned the Logic Board & SMPS.
After cleaning I started visual inspection on smps for any physical damage or Dry solder on PCB but everything looks OK. Now I took Logic Board for inspection.
Seems ok but I want to check the situation under the heatsink. I found Heatsink is soldered on the PCB.
Desoldered the heat sink.
I found full dust on MCU Legs, cleaned the PCB again using Turpentine. & cleaned the Hole for Heat sink using desolder wick.
& after cleaning I installed the Heat sink on its place.
Now I decide to check if screen show any positive result after the cleaning. When reassembling I found the T-con cable copper pads are also oxidized.
This cable is involved to pass the display signals to panel screen.
After reassembling everything back. I turn On The TV. & I got the picture.
It was merely 20 minutes job. Now waiting for the tea……Ha…Ha…ha…
This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.
P.S- Do you know of any your friends who would benefit from this content that you are reading now? If so, forward this website to your friends or you can invite your friends to subscribe to my newsletter for free in this Link.
Note: You can check his previous repair articles on Desktop Motherboard Lead-Free Soldered Component Removed



Mark
November 16, 2024 at 12:17 pm
Well done Yogesh!
Do you have high humidity where you live to create the corrosion?
Yogesh Panchal
November 16, 2024 at 5:45 pm
Right Mark,
we are having high humidity & new building construction works around which cause lots of dust problem.
Parasuraman S
November 16, 2024 at 1:12 pm
Ha! Ha! Ha! Throughout and the work earned a worthy tea! You have started writing mixing with good humor from practical life, making the article very interesting to read! Good job there, Yogesh Bhai! Well done and thanks for sharing!
Yogesh Panchal
November 16, 2024 at 6:08 pm
Sir,
It is said that a house is built not by the walls but by the peoples who stay with us and connected emotionally with us,who are always stand by us in any situation & we all to gather keep it maintain that is the mantra of the Life & humor is like a Current which keep all of us mentally /emotionally alive.
Thank you! for providing the positive current in your words Ha..Ha..ha..
Waleed Rishmawi
November 16, 2024 at 3:38 pm
a service worthy of a cup to tea..lol. yes we get these orders to bring stuff for the house and we have to obey otherwise we are in trouble.
oxidation would cause such issue and I am glad (for you sake LOL) that is up and running. have blessed day and thanks for sharing.
Yogesh Panchal
November 16, 2024 at 11:41 pm
Thanks! Waleed,
Here order fulfillment is priority..lol.
Imoudu
November 16, 2024 at 4:07 pm
Good,accurate troubleshooting method,I like it.Wifies just want their love devices get done fast.
Yogesh Panchal
November 16, 2024 at 11:47 pm
Thanks! Imoudu,
yes they know how to handle & operate their Loved Devices ( Like offering Tea)...Ha.Ha..ha
Kevin Davison
November 16, 2024 at 6:47 pm
Excellent troubleshooting. You followed logical steps using your extensive experience and discovered a nice simple fix. Well earned tea, indeed!
Yogesh Panchal
November 17, 2024 at 12:05 am
Kevin Davison,
finding replacement parts for LCD/LED TVs is very difficult hence we have to take extra care when Repair customer's TV.
Well earned tea....just think other way if result of your effort is negative...lol
Albert van Bemmelen
November 16, 2024 at 8:06 pm
Funny story! I guess your wife thought that you had packed all your equipment with you when you left home. But I am sure that you still had enough equipment laying around at home to do this tv repair.
Yogesh Panchal
November 17, 2024 at 12:09 am
Albert,i never forget groceries..Ha..ha..ha
Mark J
November 17, 2024 at 4:12 am
Yogesh great work.
Yogesh Panchal
November 17, 2024 at 3:27 pm
Thanks! Mark J
PHILIP
November 17, 2024 at 8:02 am
Thanks Yogesh for a job done well. But,a presumed warm cup of tea makes the already rooms high humidity to increase even more, eventually causing trouble. Please dont take it that I'm stopping you from enjoying a steaming cup of tea, I'm myself a teetotaller.
Yogesh Panchal
November 17, 2024 at 3:33 pm
Philip, warmth in relation never let you down. total dry environment is good for non living things; but in living relation humidity is required.
John
November 18, 2024 at 4:06 am
I've come across this situation and my solution is to keep a spare tv on wheels in the closet or spare room. Then you can take your time and enjoy your repair.
Yogesh Panchal
November 18, 2024 at 2:34 pm
Good Idea!Jhon
now a days size of the house is shrinking because of inflation of prices hence extra storage is the problem & those who can afford they do not repair things,they Buy a new one.
PHILIP
November 18, 2024 at 5:41 am
Thanks Yogesh. Welcome to my motherland Kenya, we have the best tea for warmth
Yogesh Panchal
November 18, 2024 at 2:47 pm
Philip,
Thanks!bro, in Hindustan (India) Tea is one of the option to settle any kind of conflict, be it relationship,social or professional. most of the time it counterbalance the situation.
Natarajan
November 22, 2024 at 8:15 am
Dear Sri Yogesh
Thanks for sharing a nice article.
Yogesh Panchal
November 22, 2024 at 5:39 pm
Thank you!Natarajan