Backlight but No Video troubleshooting. Samsung UN60FH6200 T-Con 

Its a pleasure to see a brother being involved in this field,Electronics Repairs i am 62+ years of age and am from South America ,the Caribbean , had studied with NTS of Los Angeles California in the early 1980,s whereby the school was defunct before i could have completed my studies,nevertheless i am still involved in repairs after a few years of absence in the field and the sudden change from Analog to Digital/TV,s,,respect brother and keep up the good works God Bless.

One of the best TV repair videos I've seen. Thank you

Yes, I did learn something. Your main board voltages, bottom voltages and test points, shorts. T con board, get the board. Saves a lot of hastle, time conumption. Great job man. Good work.

This guy has a great sense of humor. Thanks for the video!

Just used your video as a "guide line" on my 65 inch 4k. voltage didn't match output but input matched just as you said. Thank you for the flow chart/love lol!

Thanks for this just fixed my TV using your testing procedure checking for voltages etc. Great video

thank you for sharing this knowledge. currently trying to fix my television and this was very helpful.

Thanks. Sir, you are probably if not the best at carefully and meticulously explaining this to pros and amateurs.May God bless you and keep you strong.

Glad I happened across your video(s) man- hands down the most informative and helpful. Appreciate you

Just wanted to say thanks for this. Had a 60 inch Samsung that had no display but had sound. Watched this and ordered a T-con board replacement for it and its working like new. thank you so much!

Very good video and logical way of eliminating problems- Testing inputs and outputs! Hope your video helps alot of people man! Nicely done!

You truly are the Big Dog! Great teaching video. I learn every time I watch one.

Brilliant information here! Not just checking TV's but circuit boards in general!

its really helping thanks for additional information, I got de same problem it so confusing it might t-con board or logic board, and I got an Idea. thank you so much for this video

I would like to give you my sincere thanks for this video. I was able to take my 55 in samsung apart, trouble shoot and repair my 3 year old $700 TV for less than $70.

Two things. If in PSU you wanna just swap the fuse, and not risk blowing it back again, you should connect it through the bulb. If short will be still there, the bulb will light up, if not short, a small blink will be seen and PSU will wake up, or, at least you can continue your diagnoses without worrying from now on. 2nd thing is that we should not just short capacitors IMHO. We should use something like a 3.3k ohm resistor to do it. Why is better? Google can answer if you're interested :). Yes, will be no spars, that's a good guess ;). And, thank you for the video, as always, good job!

Subscribed. You had me when you said what T-con meant...! Very informative fuse checking info. I'm just learning for fun of it. Thanks.

Thanks for your advice bigdog. I had a blank screen and did your checks on the t-con board and was faulty. Bought a new one for £40 and problem solved. Saved me about £300 for a new tv👍🏻.

BigDog8882 Awesome Tech Skills, Just Started Learning About Tv Repair And I Think You Are An Asset To The Trade, Your A Great Instructor And I Can See Your Skills Come From Back In The Day, When Learning The Trade Didn't Come Easy, I Watch A Lot Of Your Video's Cause At The End Of Day, You Know You Didn't Waste Your Time, Thank You So Much For Your Helping Hand, Look Forward To Your Up And Coming Video's, Peace Out You've Been Blessed .

The T-con board was always a mystery to me but after seeing your video I am more confident now

I found it very useful. I have a TV with no picture and no backlight. Now I will follow your instructions to find the problem that I think it is the T con board.

I have an LG E480i-B2 that I'm ready to diagnose now after watching your video on the 40 inch model. I feel positive about the outcome because you're an awesome educator - I've learned a lot about LED TV from you and look forward to even more. I'll post my result on my 480. Keep up the great work and thanks for sharing your knowledge! God bless.

Your videos are of great content thank you for your time and effort.

A very special thanks for your time and excellent video, it is an invaluable contribution, thank you very much

Great video. Thank you for sharing your knowledge.

Informative yet entertaining to watch. Thank you

Great job. Just getting into TV repair. Subscribed 👍😎🤠

Great video man! Don't worry about trying to produce a professional video so much or that you need a remote control camera. You have a great way of teaching and excellent logic and that is all many of us want to watch.

Great great...... Nice and smooth explain......highly appreciate SIR.... Thank you very much. Cheers 🥂 from Denmark 🇩🇰🇩🇰🇩🇰🇩🇰🇩🇰

Jerome from Suriname just keep it coming Brother keep up the good work ,,God Bless

Thanks big dog. Helped a lot.

great video! thanks for taking the time to do these videos

Very well done video on T Con troubleshooting. Thanks for making this.

I have a UN60Es8000 that has the same sound and backlight but no picture. I tried unplugging each of the 4 ribbon cables to the T Con board trying each by them selves, in pairs etc and I never got a picture. The T Con was receiving 12V and the fuse was good. I tested all of the output pins on the ribbon and one row all got 1.4V and the other 0.9V. On a whim, I replaced the T Con and ... It WORKED!!!. Save me from buying a +/- $4K QD-OLED. Thank you for posting your videos and giving me ways to check my TV. We still do 3D movie night and so this saved us from dropping that family event.

thank you sir that is very informative for us for a country like phillippines;who is poor in technology.god bless

Great info and very thorough. Thank you!

Big Dog, I've fixed loads of tv's, mostly PSU faults, capacitors, diodes, fuses E.T.C. I got a Samsung UE55KU6000K in the last few days, turns on, with sound and backlights, but no picture. I have never had this issue before.. Normally completely dead or no backlights. This will really help me to determine whether its the main board (no TCON board on this model) or the lcd panel, too tired tonight but I'll test the voltages on the output to the screen tomorrow, thank you so much!

Great Video. T-Conn board fixed my Samsung 60" led tv.

Very good video.. Much appreciated... keep up the great work......

Cheers for the video. Was getting good input but max 200ma output. Just ordered a new board. Thanks.

well done, easy to follow as you went along. Just wanted to say I also have a scope that I found on ebay for $75 then you can see the signals at the T-con board. But you showed an easy way of doing it with a DMM.

Great video. For technicians like me who think we know a lot. It makes you come down from your cloud. I'll go see the Norcal video. Thank you very much for sharing.

I am from Suriname /thumbs up for this video

Thank you for helping me,,I will be tunning in every day,,, GDBLESS

Because of this video, I happen to notice my T CONN board was on FIRE. I did find a fire extinguisher and put it... THANKS BIGDOG !!!!!

thanks for troubleshooting and good explaination.

great job thanks, good looking out, keep helping

Great job bigdog!

Very informative, to the point and easy to understand! Thank you bigdog8882

Very nice video man. I learn a thing or two today. Thanks for the tips.

Very informative,thanks for the info,keep up the good work

Huge help, thanks man

Very good video learnt a lot , keep posting the videos please

Thank you for posting these videos, I really appreciate it sir. 👍😉

Grateful for your work!

thanks for the great video!

bravo man well explained and i learnt a lot from this video man, keep it up man great.

You saved my screen, thanks for your help!

3:52 Love the tool man & great videos you make Dog :D

Excellent Video. Best on RU-vid.

Thanks for your time and help

Hi BigDog Just wondering my friend, Are the tv screens (40”) and the inner connections the SAME between the “Samsung UE40MU6100KX” and the “Samsung UE40F5500AK” for a change over?.. Many thanks and blessings to you brother.

Now that, was bloody helpful. id buy you a beer for that if i was in the same country.

God bless you Sir i like this electronic repairs videos

Nice informative vedio learn from it thank you very much

Great video Big dog I have ordereda Tcon board today. ☺

nice explained.....i learned a lot....i have 2 samsung tvs lined up for the garbage ....maybe ill try to test them to se if one get repaired,,,hope so....thanks...

you are grate trainer, Thank you very much. good job.

You are the first so far to kinda show testing the t con board. Now I'm at the step where my tv is working but the big chip on there is getting extremely hot. You didn't explain that more I'd like to know... and one know because I have sound and light but no actual picture

Hello! My fuse on the tcon reads 0.15 in the meter ( followed your test). It's not Dead zero yet not too significant number. I'm unsure whether the fuse is the problem or not. Thanks for any help!

nice lecture...i fully understand

Thank you for this video

I was a TV technician back in the days of CRT TV but LCD I have trouble figuring it out. So thanks for explaining things. By the way you did not have to show us actual meter reading it’s good enough you utter what the reading is we trust you. It is more helpful to show us where you are touching the probe

Thanks for the help. Had half screen gray and black with audio on a LG 75". After closely looking at the T-Con board notice the bottom right ribbon connector was not latched properly. I simply pressed the ribbon latch back on, then plugged the TV in and turned on and bam it was back!

VERY GOOD JOB THANKS 😃

Thank you ur video help out....

i llike your teaching

bigdog8882 thanks so much,,,,perfect discription

Thanks for showing how to test everything before buying parts.

Just tested my t con board i have dc volts going down to the modules. And my fuses are good on my t con board. Could this then be my display panel itself. Power supply and t con is testing ok.

Hey bigdog I'm a fan of your videos. I have a TV that power's on the back light flashes then shuts off.

Thanks for your video. One question. with my loewe individual 46 i´m able to see for a second a message that says no tv signal right before the screen turns black. Do you have any idea on what can be the cause of this problem? power supply appears to be working since i can hear the hard disk working properly and i´m able to send commands with the remote. thanks in advance

VERY GOOD!! MUITO BOM!! BRASIL.

I am looking at a Samsung LN52C530F1F. It powers up and has an image. The problem appears to be erase related...static picture slowly clears and gives a good image. Video will give "ghosting" type blurring. I have been told that a drink was spilled at the bottom. Some corrosion was evident, on the bottom panels which I cleaned up with denatured alcohol. Problem did not change, jumped the gun and replaced T-Conn board with a new one. Still the same problem/symptoms. I am wondering about some type of shorting from the bottom panels to the frame shield or a capacitance issue from the corrosion which seemed to be only surface deep. I have checked the panel traces with a lighted loupe and do not see any type of pitting. Any thoughts on where I should check first? Thank you for your time and any guidance..

Great video Bigdog8882! -I've acquired an LG that turns on fine, the screen lights up bright white like there's no problem with the back lighting, but it's making an electrical buzzing/sizzling sound...but not smoking or anything like that. It won't display the menu or any of the features, just the white screen. Do have any input or suggestions for troubleshooting this particular issue? It's a nice big TV my buddy was gonna just throw in the trash...I've never repaired an TV, but I'm pretty good at this kind of thing, and not afraid to jump right in to it. It would sure be nice to resurrect this puppy for cheap and I'd be one proud cat to have fixed it myself too....Thanks!

I had half good and half bad screen, so i put off the ribbon cable (side on bad screen) beetwen tcon and lcd panel, clean it with rubber before put it on. Unfortunately, the ribbon cable got burn (two pin of 30 pin) leave with black screen both side screen but audio and blacklight on. Where do you think the problem been spread, tcon or bad panel ? Thank you for your sharing with intuitive style

Great Video and Thank you. I have this exact TV. I plug it in and get no standby light, however there is a flashing light on the black screen. Help?

nice video bigdog..very informative...one thing i want to ask..regarding the TCON that you tested on the last part of the video with the power supply...you test the fuse for short...what if the short to ground is from the other side (in the input if may i say)..is that means the short is on the motherboard...or when the safe time to replace the fuse of the tcon in order not to blew up the motherboard. i hope you understand..thank you very much..God Bless..

very informative video...tnx mate...please upload a video about "TV IMAGE SOLARIZATION":..i want to learn a fix for that kind of TV issue. looking forward to it, thanks and goodluck! :)

To find a short. With a good PS inject a volt or two into the short. Use a IR camera and find the hot spot which will be a bad semiconductor or cap. Keep current low. You can spray the board with cold frost spray and the shorted hot area will melt fast. Pick up a cheap IR camera on eBay and hook it to your PC. If you can't find the short turn up current to 5 amps and if no short found go higher. Keep voltage way below the circuit voltage that is usually there.

BigDog8882, Thank you Sir!

Just fixed my 13 year old Samsung lcd for $13........THANKS!!

Hey bigdog. I had something similar happen. I picked up a m43-c1 with bottom half horizontal lines and jumping. I was pulling panel cables to see which side was giving the problem to find out it was the left side. Right side was clear when left was pulled. While putting back left cable screen went blank. Replaced t-con and now have white screen. Any ideas if you have the time? Thank you!

Excellent video very helpful...I have one question I have a 40" samsung tv model un40ju6500f it does the same exact thing as the tv in your video I have backlights sound but no picture I get 6 red flashes when powering on from remote reciever ive replaced main board t con board and power board with no remedy what could be causing these your reply is very much appreciated as I'm stuck at the moment and dumped a lot of parts in it already by not knowing what to look for wish I saw your video sooner before buying parts

Might just be a poorly seated cable! I have a Samsung LN04051D. Got backlight. Hooked up a DVD player w/DVD for sound test; cycle through source til heard DVD. Checked for burned caps, etc. Disconnected and re-connected the tcon cable and voila! Works now! Yippie I got TV. I suggest people start first with re-seating cables! Checked fuses first too. Thanks!

Thank you sir👍

Would it also be wise to connect an small, low voltage illumination lamp on the open fuse to trouble shoot the board as it’s powered on???? I think I saw a technician do that on a tube television, but with a household incandescent 💡.

You have great videos. I have a Samsung 75 4K QN75Q7FAMFXZA. Back light and sound works, but I have to unplug and replug the television several times before seeing a picture. I have replaced the main board, same result. There does not seem to be a t-com board. Any suggestions?

Thanks Big Brother bigdog8882 I have been learn a lots good tech tips from you save me time & $$$ & do my tv repairs job more easier .Please keep do good a work A++ And you have A very great Weekend Big Brother bigdog8882

Any hints to getting the out side bezel off? The sides no problem the corners refuse to release.